Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1 | #! /usr/bin/env perl |
| 2 | # Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | # |
| 4 | # Licensed under the OpenSSL license (the "License"). You may not use |
| 5 | # this file except in compliance with the License. You can obtain a copy |
| 6 | # in the file LICENSE in the source distribution or at |
| 7 | # https://www.openssl.org/source/license.html |
| 8 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 9 | # |
| 10 | # ==================================================================== |
| 11 | # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| 12 | # project. The module is, however, dual licensed under OpenSSL and |
| 13 | # CRYPTOGAMS licenses depending on where you obtain it. For further |
| 14 | # details see http://www.openssl.org/~appro/cryptogams/. |
| 15 | # ==================================================================== |
| 16 | # |
| 17 | # This module implements support for Intel AES-NI extension. In |
| 18 | # OpenSSL context it's used with Intel engine, but can also be used as |
| 19 | # drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for |
| 20 | # details]. |
| 21 | # |
| 22 | # Performance. |
| 23 | # |
| 24 | # Given aes(enc|dec) instructions' latency asymptotic performance for |
| 25 | # non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte |
| 26 | # processed with 128-bit key. And given their throughput asymptotic |
| 27 | # performance for parallelizable modes is 1.25 cycles per byte. Being |
| 28 | # asymptotic limit it's not something you commonly achieve in reality, |
| 29 | # but how close does one get? Below are results collected for |
| 30 | # different modes and block sized. Pairs of numbers are for en-/ |
| 31 | # decryption. |
| 32 | # |
| 33 | # 16-byte 64-byte 256-byte 1-KB 8-KB |
| 34 | # ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26 |
| 35 | # CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26 |
| 36 | # CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 37 | # CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 38 | # OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38 |
| 39 | # CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55 |
| 40 | # |
| 41 | # ECB, CTR, CBC and CCM results are free from EVP overhead. This means |
| 42 | # that otherwise used 'openssl speed -evp aes-128-??? -engine aesni |
| 43 | # [-decrypt]' will exhibit 10-15% worse results for smaller blocks. |
| 44 | # The results were collected with specially crafted speed.c benchmark |
| 45 | # in order to compare them with results reported in "Intel Advanced |
| 46 | # Encryption Standard (AES) New Instruction Set" White Paper Revision |
| 47 | # 3.0 dated May 2010. All above results are consistently better. This |
| 48 | # module also provides better performance for block sizes smaller than |
| 49 | # 128 bytes in points *not* represented in the above table. |
| 50 | # |
| 51 | # Looking at the results for 8-KB buffer. |
| 52 | # |
| 53 | # CFB and OFB results are far from the limit, because implementation |
| 54 | # uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on |
| 55 | # single-block aesni_encrypt, which is not the most optimal way to go. |
| 56 | # CBC encrypt result is unexpectedly high and there is no documented |
| 57 | # explanation for it. Seemingly there is a small penalty for feeding |
| 58 | # the result back to AES unit the way it's done in CBC mode. There is |
| 59 | # nothing one can do and the result appears optimal. CCM result is |
| 60 | # identical to CBC, because CBC-MAC is essentially CBC encrypt without |
| 61 | # saving output. CCM CTR "stays invisible," because it's neatly |
| 62 | # interleaved wih CBC-MAC. This provides ~30% improvement over |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 63 | # "straightforward" CCM implementation with CTR and CBC-MAC performed |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 64 | # disjointly. Parallelizable modes practically achieve the theoretical |
| 65 | # limit. |
| 66 | # |
| 67 | # Looking at how results vary with buffer size. |
| 68 | # |
| 69 | # Curves are practically saturated at 1-KB buffer size. In most cases |
| 70 | # "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one. |
| 71 | # CTR curve doesn't follow this pattern and is "slowest" changing one |
| 72 | # with "256-byte" result being 87% of "8-KB." This is because overhead |
| 73 | # in CTR mode is most computationally intensive. Small-block CCM |
| 74 | # decrypt is slower than encrypt, because first CTR and last CBC-MAC |
| 75 | # iterations can't be interleaved. |
| 76 | # |
| 77 | # Results for 192- and 256-bit keys. |
| 78 | # |
| 79 | # EVP-free results were observed to scale perfectly with number of |
| 80 | # rounds for larger block sizes, i.e. 192-bit result being 10/12 times |
| 81 | # lower and 256-bit one - 10/14. Well, in CBC encrypt case differences |
| 82 | # are a tad smaller, because the above mentioned penalty biases all |
| 83 | # results by same constant value. In similar way function call |
| 84 | # overhead affects small-block performance, as well as OFB and CFB |
| 85 | # results. Differences are not large, most common coefficients are |
| 86 | # 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one |
| 87 | # observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)... |
| 88 | |
| 89 | # January 2011 |
| 90 | # |
| 91 | # While Westmere processor features 6 cycles latency for aes[enc|dec] |
| 92 | # instructions, which can be scheduled every second cycle, Sandy |
| 93 | # Bridge spends 8 cycles per instruction, but it can schedule them |
| 94 | # every cycle. This means that code targeting Westmere would perform |
| 95 | # suboptimally on Sandy Bridge. Therefore this update. |
| 96 | # |
| 97 | # In addition, non-parallelizable CBC encrypt (as well as CCM) is |
| 98 | # optimized. Relative improvement might appear modest, 8% on Westmere, |
| 99 | # but in absolute terms it's 3.77 cycles per byte encrypted with |
| 100 | # 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers |
| 101 | # should be compared to asymptotic limits of 3.75 for Westmere and |
| 102 | # 5.00 for Sandy Bridge. Actually, the fact that they get this close |
| 103 | # to asymptotic limits is quite amazing. Indeed, the limit is |
| 104 | # calculated as latency times number of rounds, 10 for 128-bit key, |
| 105 | # and divided by 16, the number of bytes in block, or in other words |
| 106 | # it accounts *solely* for aesenc instructions. But there are extra |
| 107 | # instructions, and numbers so close to the asymptotic limits mean |
| 108 | # that it's as if it takes as little as *one* additional cycle to |
| 109 | # execute all of them. How is it possible? It is possible thanks to |
| 110 | # out-of-order execution logic, which manages to overlap post- |
| 111 | # processing of previous block, things like saving the output, with |
| 112 | # actual encryption of current block, as well as pre-processing of |
| 113 | # current block, things like fetching input and xor-ing it with |
| 114 | # 0-round element of the key schedule, with actual encryption of |
| 115 | # previous block. Keep this in mind... |
| 116 | # |
| 117 | # For parallelizable modes, such as ECB, CBC decrypt, CTR, higher |
| 118 | # performance is achieved by interleaving instructions working on |
| 119 | # independent blocks. In which case asymptotic limit for such modes |
| 120 | # can be obtained by dividing above mentioned numbers by AES |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 121 | # instructions' interleave factor. Westmere can execute at most 3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 122 | # instructions at a time, meaning that optimal interleave factor is 3, |
| 123 | # and that's where the "magic" number of 1.25 come from. "Optimal |
| 124 | # interleave factor" means that increase of interleave factor does |
| 125 | # not improve performance. The formula has proven to reflect reality |
| 126 | # pretty well on Westmere... Sandy Bridge on the other hand can |
| 127 | # execute up to 8 AES instructions at a time, so how does varying |
| 128 | # interleave factor affect the performance? Here is table for ECB |
| 129 | # (numbers are cycles per byte processed with 128-bit key): |
| 130 | # |
| 131 | # instruction interleave factor 3x 6x 8x |
| 132 | # theoretical asymptotic limit 1.67 0.83 0.625 |
| 133 | # measured performance for 8KB block 1.05 0.86 0.84 |
| 134 | # |
| 135 | # "as if" interleave factor 4.7x 5.8x 6.0x |
| 136 | # |
| 137 | # Further data for other parallelizable modes: |
| 138 | # |
| 139 | # CBC decrypt 1.16 0.93 0.74 |
| 140 | # CTR 1.14 0.91 0.74 |
| 141 | # |
| 142 | # Well, given 3x column it's probably inappropriate to call the limit |
| 143 | # asymptotic, if it can be surpassed, isn't it? What happens there? |
| 144 | # Rewind to CBC paragraph for the answer. Yes, out-of-order execution |
| 145 | # magic is responsible for this. Processor overlaps not only the |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 146 | # additional instructions with AES ones, but even AES instructions |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 147 | # processing adjacent triplets of independent blocks. In the 6x case |
| 148 | # additional instructions still claim disproportionally small amount |
| 149 | # of additional cycles, but in 8x case number of instructions must be |
| 150 | # a tad too high for out-of-order logic to cope with, and AES unit |
| 151 | # remains underutilized... As you can see 8x interleave is hardly |
| 152 | # justifiable, so there no need to feel bad that 32-bit aesni-x86.pl |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 153 | # utilizes 6x interleave because of limited register bank capacity. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 154 | # |
| 155 | # Higher interleave factors do have negative impact on Westmere |
| 156 | # performance. While for ECB mode it's negligible ~1.5%, other |
| 157 | # parallelizables perform ~5% worse, which is outweighed by ~25% |
| 158 | # improvement on Sandy Bridge. To balance regression on Westmere |
| 159 | # CTR mode was implemented with 6x aesenc interleave factor. |
| 160 | |
| 161 | # April 2011 |
| 162 | # |
| 163 | # Add aesni_xts_[en|de]crypt. Westmere spends 1.25 cycles processing |
| 164 | # one byte out of 8KB with 128-bit key, Sandy Bridge - 0.90. Just like |
| 165 | # in CTR mode AES instruction interleave factor was chosen to be 6x. |
| 166 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 167 | # November 2015 |
| 168 | # |
| 169 | # Add aesni_ocb_[en|de]crypt. AES instruction interleave factor was |
| 170 | # chosen to be 6x. |
| 171 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 172 | ###################################################################### |
| 173 | # Current large-block performance in cycles per byte processed with |
| 174 | # 128-bit key (less is better). |
| 175 | # |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 176 | # CBC en-/decrypt CTR XTS ECB OCB |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 177 | # Westmere 3.77/1.25 1.25 1.25 1.26 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 178 | # * Bridge 5.07/0.74 0.75 0.90 0.85 0.98 |
| 179 | # Haswell 4.44/0.63 0.63 0.73 0.63 0.70 |
| 180 | # Skylake 2.62/0.63 0.63 0.63 0.63 |
| 181 | # Silvermont 5.75/3.54 3.56 4.12 3.87(*) 4.11 |
Robert Sloan | fe7cd21 | 2017-08-07 09:03:39 -0700 | [diff] [blame] | 182 | # Knights L 2.54/0.77 0.78 0.85 - 1.50 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 183 | # Goldmont 3.82/1.26 1.26 1.29 1.29 1.50 |
| 184 | # Bulldozer 5.77/0.70 0.72 0.90 0.70 0.95 |
Robert Sloan | fe7cd21 | 2017-08-07 09:03:39 -0700 | [diff] [blame] | 185 | # Ryzen 2.71/0.35 0.35 0.44 0.38 0.49 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 186 | # |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 187 | # (*) Atom Silvermont ECB result is suboptimal because of penalties |
| 188 | # incurred by operations on %xmm8-15. As ECB is not considered |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 189 | # critical, nothing was done to mitigate the problem. |
| 190 | |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 191 | $PREFIX="aes_hw"; # if $PREFIX is set to "AES", the script |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 192 | # generates drop-in replacement for |
| 193 | # crypto/aes/asm/aes-x86_64.pl:-) |
| 194 | |
| 195 | $flavour = shift; |
| 196 | $output = shift; |
| 197 | if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } |
| 198 | |
| 199 | $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); |
| 200 | |
| 201 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| 202 | ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or |
Robert Sloan | 572a4e2 | 2017-04-17 10:52:19 -0700 | [diff] [blame] | 203 | ( $xlate="${dir}../../../perlasm/x86_64-xlate.pl" and -f $xlate) or |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 204 | die "can't locate x86_64-xlate.pl"; |
| 205 | |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 206 | open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 207 | *STDOUT=*OUT; |
| 208 | |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 209 | $movkey = $PREFIX eq "aes_hw" ? "movups" : "movups"; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 210 | @_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order |
| 211 | ("%rdi","%rsi","%rdx","%rcx"); # Unix order |
| 212 | |
| 213 | $code=".text\n"; |
Robert Sloan | 2424d84 | 2017-05-01 07:46:28 -0700 | [diff] [blame] | 214 | $code.=".extern OPENSSL_ia32cap_P\n"; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 215 | |
| 216 | $rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!! |
| 217 | # this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ... |
| 218 | $inp="%rdi"; |
| 219 | $out="%rsi"; |
| 220 | $len="%rdx"; |
| 221 | $key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!! |
| 222 | $ivp="%r8"; # cbc, ctr, ... |
| 223 | |
| 224 | $rnds_="%r10d"; # backup copy for $rounds |
| 225 | $key_="%r11"; # backup copy for $key |
| 226 | |
| 227 | # %xmm register layout |
| 228 | $rndkey0="%xmm0"; $rndkey1="%xmm1"; |
| 229 | $inout0="%xmm2"; $inout1="%xmm3"; |
| 230 | $inout2="%xmm4"; $inout3="%xmm5"; |
| 231 | $inout4="%xmm6"; $inout5="%xmm7"; |
| 232 | $inout6="%xmm8"; $inout7="%xmm9"; |
| 233 | |
| 234 | $in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ... |
| 235 | $in0="%xmm8"; $iv="%xmm9"; |
| 236 | |
| 237 | # Inline version of internal aesni_[en|de]crypt1. |
| 238 | # |
| 239 | # Why folded loop? Because aes[enc|dec] is slow enough to accommodate |
| 240 | # cycles which take care of loop variables... |
| 241 | { my $sn; |
| 242 | sub aesni_generate1 { |
| 243 | my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); |
| 244 | ++$sn; |
| 245 | $code.=<<___; |
| 246 | $movkey ($key),$rndkey0 |
| 247 | $movkey 16($key),$rndkey1 |
| 248 | ___ |
| 249 | $code.=<<___ if (defined($ivec)); |
| 250 | xorps $rndkey0,$ivec |
| 251 | lea 32($key),$key |
| 252 | xorps $ivec,$inout |
| 253 | ___ |
| 254 | $code.=<<___ if (!defined($ivec)); |
| 255 | lea 32($key),$key |
| 256 | xorps $rndkey0,$inout |
| 257 | ___ |
| 258 | $code.=<<___; |
| 259 | .Loop_${p}1_$sn: |
| 260 | aes${p} $rndkey1,$inout |
| 261 | dec $rounds |
| 262 | $movkey ($key),$rndkey1 |
| 263 | lea 16($key),$key |
| 264 | jnz .Loop_${p}1_$sn # loop body is 16 bytes |
| 265 | aes${p}last $rndkey1,$inout |
| 266 | ___ |
| 267 | }} |
| 268 | # void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key); |
| 269 | # |
| 270 | { my ($inp,$out,$key) = @_4args; |
| 271 | |
| 272 | $code.=<<___; |
| 273 | .globl ${PREFIX}_encrypt |
| 274 | .type ${PREFIX}_encrypt,\@abi-omnipotent |
| 275 | .align 16 |
| 276 | ${PREFIX}_encrypt: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 277 | .cfi_startproc |
| 278 | #ifndef NDEBUG |
| 279 | #ifndef BORINGSSL_FIPS |
| 280 | .extern BORINGSSL_function_hit |
| 281 | movb \$1,BORINGSSL_function_hit+1(%rip) |
| 282 | #endif |
| 283 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 284 | movups ($inp),$inout0 # load input |
| 285 | mov 240($key),$rounds # key->rounds |
| 286 | ___ |
| 287 | &aesni_generate1("enc",$key,$rounds); |
| 288 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 289 | pxor $rndkey0,$rndkey0 # clear register bank |
| 290 | pxor $rndkey1,$rndkey1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 291 | movups $inout0,($out) # output |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 292 | pxor $inout0,$inout0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 293 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 294 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 295 | .size ${PREFIX}_encrypt,.-${PREFIX}_encrypt |
| 296 | |
| 297 | .globl ${PREFIX}_decrypt |
| 298 | .type ${PREFIX}_decrypt,\@abi-omnipotent |
| 299 | .align 16 |
| 300 | ${PREFIX}_decrypt: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 301 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 302 | movups ($inp),$inout0 # load input |
| 303 | mov 240($key),$rounds # key->rounds |
| 304 | ___ |
| 305 | &aesni_generate1("dec",$key,$rounds); |
| 306 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 307 | pxor $rndkey0,$rndkey0 # clear register bank |
| 308 | pxor $rndkey1,$rndkey1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 309 | movups $inout0,($out) # output |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 310 | pxor $inout0,$inout0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 311 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 312 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 313 | .size ${PREFIX}_decrypt, .-${PREFIX}_decrypt |
| 314 | ___ |
| 315 | } |
| 316 | |
| 317 | # _aesni_[en|de]cryptN are private interfaces, N denotes interleave |
| 318 | # factor. Why 3x subroutine were originally used in loops? Even though |
| 319 | # aes[enc|dec] latency was originally 6, it could be scheduled only |
| 320 | # every *2nd* cycle. Thus 3x interleave was the one providing optimal |
| 321 | # utilization, i.e. when subroutine's throughput is virtually same as |
| 322 | # of non-interleaved subroutine [for number of input blocks up to 3]. |
| 323 | # This is why it originally made no sense to implement 2x subroutine. |
| 324 | # But times change and it became appropriate to spend extra 192 bytes |
| 325 | # on 2x subroutine on Atom Silvermont account. For processors that |
| 326 | # can schedule aes[enc|dec] every cycle optimal interleave factor |
| 327 | # equals to corresponding instructions latency. 8x is optimal for |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 328 | # * Bridge and "super-optimal" for other Intel CPUs... |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 329 | |
| 330 | sub aesni_generate2 { |
| 331 | my $dir=shift; |
| 332 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 333 | # preserved. $inout[0-1] is cipher/clear text... |
| 334 | $code.=<<___; |
| 335 | .type _aesni_${dir}rypt2,\@abi-omnipotent |
| 336 | .align 16 |
| 337 | _aesni_${dir}rypt2: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 338 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 339 | $movkey ($key),$rndkey0 |
| 340 | shl \$4,$rounds |
| 341 | $movkey 16($key),$rndkey1 |
| 342 | xorps $rndkey0,$inout0 |
| 343 | xorps $rndkey0,$inout1 |
| 344 | $movkey 32($key),$rndkey0 |
| 345 | lea 32($key,$rounds),$key |
| 346 | neg %rax # $rounds |
| 347 | add \$16,%rax |
| 348 | |
| 349 | .L${dir}_loop2: |
| 350 | aes${dir} $rndkey1,$inout0 |
| 351 | aes${dir} $rndkey1,$inout1 |
| 352 | $movkey ($key,%rax),$rndkey1 |
| 353 | add \$32,%rax |
| 354 | aes${dir} $rndkey0,$inout0 |
| 355 | aes${dir} $rndkey0,$inout1 |
| 356 | $movkey -16($key,%rax),$rndkey0 |
| 357 | jnz .L${dir}_loop2 |
| 358 | |
| 359 | aes${dir} $rndkey1,$inout0 |
| 360 | aes${dir} $rndkey1,$inout1 |
| 361 | aes${dir}last $rndkey0,$inout0 |
| 362 | aes${dir}last $rndkey0,$inout1 |
| 363 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 364 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 365 | .size _aesni_${dir}rypt2,.-_aesni_${dir}rypt2 |
| 366 | ___ |
| 367 | } |
| 368 | sub aesni_generate3 { |
| 369 | my $dir=shift; |
| 370 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 371 | # preserved. $inout[0-2] is cipher/clear text... |
| 372 | $code.=<<___; |
| 373 | .type _aesni_${dir}rypt3,\@abi-omnipotent |
| 374 | .align 16 |
| 375 | _aesni_${dir}rypt3: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 376 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 377 | $movkey ($key),$rndkey0 |
| 378 | shl \$4,$rounds |
| 379 | $movkey 16($key),$rndkey1 |
| 380 | xorps $rndkey0,$inout0 |
| 381 | xorps $rndkey0,$inout1 |
| 382 | xorps $rndkey0,$inout2 |
| 383 | $movkey 32($key),$rndkey0 |
| 384 | lea 32($key,$rounds),$key |
| 385 | neg %rax # $rounds |
| 386 | add \$16,%rax |
| 387 | |
| 388 | .L${dir}_loop3: |
| 389 | aes${dir} $rndkey1,$inout0 |
| 390 | aes${dir} $rndkey1,$inout1 |
| 391 | aes${dir} $rndkey1,$inout2 |
| 392 | $movkey ($key,%rax),$rndkey1 |
| 393 | add \$32,%rax |
| 394 | aes${dir} $rndkey0,$inout0 |
| 395 | aes${dir} $rndkey0,$inout1 |
| 396 | aes${dir} $rndkey0,$inout2 |
| 397 | $movkey -16($key,%rax),$rndkey0 |
| 398 | jnz .L${dir}_loop3 |
| 399 | |
| 400 | aes${dir} $rndkey1,$inout0 |
| 401 | aes${dir} $rndkey1,$inout1 |
| 402 | aes${dir} $rndkey1,$inout2 |
| 403 | aes${dir}last $rndkey0,$inout0 |
| 404 | aes${dir}last $rndkey0,$inout1 |
| 405 | aes${dir}last $rndkey0,$inout2 |
| 406 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 407 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 408 | .size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3 |
| 409 | ___ |
| 410 | } |
| 411 | # 4x interleave is implemented to improve small block performance, |
| 412 | # most notably [and naturally] 4 block by ~30%. One can argue that one |
| 413 | # should have implemented 5x as well, but improvement would be <20%, |
| 414 | # so it's not worth it... |
| 415 | sub aesni_generate4 { |
| 416 | my $dir=shift; |
| 417 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 418 | # preserved. $inout[0-3] is cipher/clear text... |
| 419 | $code.=<<___; |
| 420 | .type _aesni_${dir}rypt4,\@abi-omnipotent |
| 421 | .align 16 |
| 422 | _aesni_${dir}rypt4: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 423 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 424 | $movkey ($key),$rndkey0 |
| 425 | shl \$4,$rounds |
| 426 | $movkey 16($key),$rndkey1 |
| 427 | xorps $rndkey0,$inout0 |
| 428 | xorps $rndkey0,$inout1 |
| 429 | xorps $rndkey0,$inout2 |
| 430 | xorps $rndkey0,$inout3 |
| 431 | $movkey 32($key),$rndkey0 |
| 432 | lea 32($key,$rounds),$key |
| 433 | neg %rax # $rounds |
| 434 | .byte 0x0f,0x1f,0x00 |
| 435 | add \$16,%rax |
| 436 | |
| 437 | .L${dir}_loop4: |
| 438 | aes${dir} $rndkey1,$inout0 |
| 439 | aes${dir} $rndkey1,$inout1 |
| 440 | aes${dir} $rndkey1,$inout2 |
| 441 | aes${dir} $rndkey1,$inout3 |
| 442 | $movkey ($key,%rax),$rndkey1 |
| 443 | add \$32,%rax |
| 444 | aes${dir} $rndkey0,$inout0 |
| 445 | aes${dir} $rndkey0,$inout1 |
| 446 | aes${dir} $rndkey0,$inout2 |
| 447 | aes${dir} $rndkey0,$inout3 |
| 448 | $movkey -16($key,%rax),$rndkey0 |
| 449 | jnz .L${dir}_loop4 |
| 450 | |
| 451 | aes${dir} $rndkey1,$inout0 |
| 452 | aes${dir} $rndkey1,$inout1 |
| 453 | aes${dir} $rndkey1,$inout2 |
| 454 | aes${dir} $rndkey1,$inout3 |
| 455 | aes${dir}last $rndkey0,$inout0 |
| 456 | aes${dir}last $rndkey0,$inout1 |
| 457 | aes${dir}last $rndkey0,$inout2 |
| 458 | aes${dir}last $rndkey0,$inout3 |
| 459 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 460 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 461 | .size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4 |
| 462 | ___ |
| 463 | } |
| 464 | sub aesni_generate6 { |
| 465 | my $dir=shift; |
| 466 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 467 | # preserved. $inout[0-5] is cipher/clear text... |
| 468 | $code.=<<___; |
| 469 | .type _aesni_${dir}rypt6,\@abi-omnipotent |
| 470 | .align 16 |
| 471 | _aesni_${dir}rypt6: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 472 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 473 | $movkey ($key),$rndkey0 |
| 474 | shl \$4,$rounds |
| 475 | $movkey 16($key),$rndkey1 |
| 476 | xorps $rndkey0,$inout0 |
| 477 | pxor $rndkey0,$inout1 |
| 478 | pxor $rndkey0,$inout2 |
| 479 | aes${dir} $rndkey1,$inout0 |
| 480 | lea 32($key,$rounds),$key |
| 481 | neg %rax # $rounds |
| 482 | aes${dir} $rndkey1,$inout1 |
| 483 | pxor $rndkey0,$inout3 |
| 484 | pxor $rndkey0,$inout4 |
| 485 | aes${dir} $rndkey1,$inout2 |
| 486 | pxor $rndkey0,$inout5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 487 | $movkey ($key,%rax),$rndkey0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 488 | add \$16,%rax |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 489 | jmp .L${dir}_loop6_enter |
| 490 | .align 16 |
| 491 | .L${dir}_loop6: |
| 492 | aes${dir} $rndkey1,$inout0 |
| 493 | aes${dir} $rndkey1,$inout1 |
| 494 | aes${dir} $rndkey1,$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 495 | .L${dir}_loop6_enter: |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 496 | aes${dir} $rndkey1,$inout3 |
| 497 | aes${dir} $rndkey1,$inout4 |
| 498 | aes${dir} $rndkey1,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 499 | $movkey ($key,%rax),$rndkey1 |
| 500 | add \$32,%rax |
| 501 | aes${dir} $rndkey0,$inout0 |
| 502 | aes${dir} $rndkey0,$inout1 |
| 503 | aes${dir} $rndkey0,$inout2 |
| 504 | aes${dir} $rndkey0,$inout3 |
| 505 | aes${dir} $rndkey0,$inout4 |
| 506 | aes${dir} $rndkey0,$inout5 |
| 507 | $movkey -16($key,%rax),$rndkey0 |
| 508 | jnz .L${dir}_loop6 |
| 509 | |
| 510 | aes${dir} $rndkey1,$inout0 |
| 511 | aes${dir} $rndkey1,$inout1 |
| 512 | aes${dir} $rndkey1,$inout2 |
| 513 | aes${dir} $rndkey1,$inout3 |
| 514 | aes${dir} $rndkey1,$inout4 |
| 515 | aes${dir} $rndkey1,$inout5 |
| 516 | aes${dir}last $rndkey0,$inout0 |
| 517 | aes${dir}last $rndkey0,$inout1 |
| 518 | aes${dir}last $rndkey0,$inout2 |
| 519 | aes${dir}last $rndkey0,$inout3 |
| 520 | aes${dir}last $rndkey0,$inout4 |
| 521 | aes${dir}last $rndkey0,$inout5 |
| 522 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 523 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 524 | .size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6 |
| 525 | ___ |
| 526 | } |
| 527 | sub aesni_generate8 { |
| 528 | my $dir=shift; |
| 529 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 530 | # preserved. $inout[0-7] is cipher/clear text... |
| 531 | $code.=<<___; |
| 532 | .type _aesni_${dir}rypt8,\@abi-omnipotent |
| 533 | .align 16 |
| 534 | _aesni_${dir}rypt8: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 535 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 536 | $movkey ($key),$rndkey0 |
| 537 | shl \$4,$rounds |
| 538 | $movkey 16($key),$rndkey1 |
| 539 | xorps $rndkey0,$inout0 |
| 540 | xorps $rndkey0,$inout1 |
| 541 | pxor $rndkey0,$inout2 |
| 542 | pxor $rndkey0,$inout3 |
| 543 | pxor $rndkey0,$inout4 |
| 544 | lea 32($key,$rounds),$key |
| 545 | neg %rax # $rounds |
| 546 | aes${dir} $rndkey1,$inout0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 547 | pxor $rndkey0,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 548 | pxor $rndkey0,$inout6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 549 | aes${dir} $rndkey1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 550 | pxor $rndkey0,$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 551 | $movkey ($key,%rax),$rndkey0 |
| 552 | add \$16,%rax |
| 553 | jmp .L${dir}_loop8_inner |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 554 | .align 16 |
| 555 | .L${dir}_loop8: |
| 556 | aes${dir} $rndkey1,$inout0 |
| 557 | aes${dir} $rndkey1,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 558 | .L${dir}_loop8_inner: |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 559 | aes${dir} $rndkey1,$inout2 |
| 560 | aes${dir} $rndkey1,$inout3 |
| 561 | aes${dir} $rndkey1,$inout4 |
| 562 | aes${dir} $rndkey1,$inout5 |
| 563 | aes${dir} $rndkey1,$inout6 |
| 564 | aes${dir} $rndkey1,$inout7 |
| 565 | .L${dir}_loop8_enter: |
| 566 | $movkey ($key,%rax),$rndkey1 |
| 567 | add \$32,%rax |
| 568 | aes${dir} $rndkey0,$inout0 |
| 569 | aes${dir} $rndkey0,$inout1 |
| 570 | aes${dir} $rndkey0,$inout2 |
| 571 | aes${dir} $rndkey0,$inout3 |
| 572 | aes${dir} $rndkey0,$inout4 |
| 573 | aes${dir} $rndkey0,$inout5 |
| 574 | aes${dir} $rndkey0,$inout6 |
| 575 | aes${dir} $rndkey0,$inout7 |
| 576 | $movkey -16($key,%rax),$rndkey0 |
| 577 | jnz .L${dir}_loop8 |
| 578 | |
| 579 | aes${dir} $rndkey1,$inout0 |
| 580 | aes${dir} $rndkey1,$inout1 |
| 581 | aes${dir} $rndkey1,$inout2 |
| 582 | aes${dir} $rndkey1,$inout3 |
| 583 | aes${dir} $rndkey1,$inout4 |
| 584 | aes${dir} $rndkey1,$inout5 |
| 585 | aes${dir} $rndkey1,$inout6 |
| 586 | aes${dir} $rndkey1,$inout7 |
| 587 | aes${dir}last $rndkey0,$inout0 |
| 588 | aes${dir}last $rndkey0,$inout1 |
| 589 | aes${dir}last $rndkey0,$inout2 |
| 590 | aes${dir}last $rndkey0,$inout3 |
| 591 | aes${dir}last $rndkey0,$inout4 |
| 592 | aes${dir}last $rndkey0,$inout5 |
| 593 | aes${dir}last $rndkey0,$inout6 |
| 594 | aes${dir}last $rndkey0,$inout7 |
| 595 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 596 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 597 | .size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8 |
| 598 | ___ |
| 599 | } |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 600 | &aesni_generate2("enc") if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 601 | &aesni_generate2("dec"); |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 602 | &aesni_generate3("enc") if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 603 | &aesni_generate3("dec"); |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 604 | &aesni_generate4("enc") if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 605 | &aesni_generate4("dec"); |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 606 | &aesni_generate6("enc") if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 607 | &aesni_generate6("dec"); |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 608 | &aesni_generate8("enc") if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 609 | &aesni_generate8("dec"); |
| 610 | |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 611 | if ($PREFIX eq "aes_hw") { |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 612 | ######################################################################## |
| 613 | # void aesni_ecb_encrypt (const void *in, void *out, |
| 614 | # size_t length, const AES_KEY *key, |
| 615 | # int enc); |
| 616 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 617 | .globl ${PREFIX}_ecb_encrypt |
| 618 | .type ${PREFIX}_ecb_encrypt,\@function,5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 619 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 620 | ${PREFIX}_ecb_encrypt: |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 621 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 622 | ___ |
| 623 | $code.=<<___ if ($win64); |
| 624 | lea -0x58(%rsp),%rsp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 625 | movaps %xmm6,(%rsp) # offload $inout4..7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 626 | movaps %xmm7,0x10(%rsp) |
| 627 | movaps %xmm8,0x20(%rsp) |
| 628 | movaps %xmm9,0x30(%rsp) |
| 629 | .Lecb_enc_body: |
| 630 | ___ |
| 631 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 632 | and \$-16,$len # if ($len<16) |
| 633 | jz .Lecb_ret # return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 634 | |
| 635 | mov 240($key),$rounds # key->rounds |
| 636 | $movkey ($key),$rndkey0 |
| 637 | mov $key,$key_ # backup $key |
| 638 | mov $rounds,$rnds_ # backup $rounds |
| 639 | test %r8d,%r8d # 5th argument |
| 640 | jz .Lecb_decrypt |
| 641 | #--------------------------- ECB ENCRYPT ------------------------------# |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 642 | cmp \$0x80,$len # if ($len<8*16) |
| 643 | jb .Lecb_enc_tail # short input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 644 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 645 | movdqu ($inp),$inout0 # load 8 input blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 646 | movdqu 0x10($inp),$inout1 |
| 647 | movdqu 0x20($inp),$inout2 |
| 648 | movdqu 0x30($inp),$inout3 |
| 649 | movdqu 0x40($inp),$inout4 |
| 650 | movdqu 0x50($inp),$inout5 |
| 651 | movdqu 0x60($inp),$inout6 |
| 652 | movdqu 0x70($inp),$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 653 | lea 0x80($inp),$inp # $inp+=8*16 |
| 654 | sub \$0x80,$len # $len-=8*16 (can be zero) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 655 | jmp .Lecb_enc_loop8_enter |
| 656 | .align 16 |
| 657 | .Lecb_enc_loop8: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 658 | movups $inout0,($out) # store 8 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 659 | mov $key_,$key # restore $key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 660 | movdqu ($inp),$inout0 # load 8 input blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 661 | mov $rnds_,$rounds # restore $rounds |
| 662 | movups $inout1,0x10($out) |
| 663 | movdqu 0x10($inp),$inout1 |
| 664 | movups $inout2,0x20($out) |
| 665 | movdqu 0x20($inp),$inout2 |
| 666 | movups $inout3,0x30($out) |
| 667 | movdqu 0x30($inp),$inout3 |
| 668 | movups $inout4,0x40($out) |
| 669 | movdqu 0x40($inp),$inout4 |
| 670 | movups $inout5,0x50($out) |
| 671 | movdqu 0x50($inp),$inout5 |
| 672 | movups $inout6,0x60($out) |
| 673 | movdqu 0x60($inp),$inout6 |
| 674 | movups $inout7,0x70($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 675 | lea 0x80($out),$out # $out+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 676 | movdqu 0x70($inp),$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 677 | lea 0x80($inp),$inp # $inp+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 678 | .Lecb_enc_loop8_enter: |
| 679 | |
| 680 | call _aesni_encrypt8 |
| 681 | |
| 682 | sub \$0x80,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 683 | jnc .Lecb_enc_loop8 # loop if $len-=8*16 didn't borrow |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 684 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 685 | movups $inout0,($out) # store 8 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 686 | mov $key_,$key # restore $key |
| 687 | movups $inout1,0x10($out) |
| 688 | mov $rnds_,$rounds # restore $rounds |
| 689 | movups $inout2,0x20($out) |
| 690 | movups $inout3,0x30($out) |
| 691 | movups $inout4,0x40($out) |
| 692 | movups $inout5,0x50($out) |
| 693 | movups $inout6,0x60($out) |
| 694 | movups $inout7,0x70($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 695 | lea 0x80($out),$out # $out+=8*16 |
| 696 | add \$0x80,$len # restore real remaining $len |
| 697 | jz .Lecb_ret # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 698 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 699 | .Lecb_enc_tail: # $len is less than 8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 700 | movups ($inp),$inout0 |
| 701 | cmp \$0x20,$len |
| 702 | jb .Lecb_enc_one |
| 703 | movups 0x10($inp),$inout1 |
| 704 | je .Lecb_enc_two |
| 705 | movups 0x20($inp),$inout2 |
| 706 | cmp \$0x40,$len |
| 707 | jb .Lecb_enc_three |
| 708 | movups 0x30($inp),$inout3 |
| 709 | je .Lecb_enc_four |
| 710 | movups 0x40($inp),$inout4 |
| 711 | cmp \$0x60,$len |
| 712 | jb .Lecb_enc_five |
| 713 | movups 0x50($inp),$inout5 |
| 714 | je .Lecb_enc_six |
| 715 | movdqu 0x60($inp),$inout6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 716 | xorps $inout7,$inout7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 717 | call _aesni_encrypt8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 718 | movups $inout0,($out) # store 7 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 719 | movups $inout1,0x10($out) |
| 720 | movups $inout2,0x20($out) |
| 721 | movups $inout3,0x30($out) |
| 722 | movups $inout4,0x40($out) |
| 723 | movups $inout5,0x50($out) |
| 724 | movups $inout6,0x60($out) |
| 725 | jmp .Lecb_ret |
| 726 | .align 16 |
| 727 | .Lecb_enc_one: |
| 728 | ___ |
| 729 | &aesni_generate1("enc",$key,$rounds); |
| 730 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 731 | movups $inout0,($out) # store one output block |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 732 | jmp .Lecb_ret |
| 733 | .align 16 |
| 734 | .Lecb_enc_two: |
| 735 | call _aesni_encrypt2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 736 | movups $inout0,($out) # store 2 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 737 | movups $inout1,0x10($out) |
| 738 | jmp .Lecb_ret |
| 739 | .align 16 |
| 740 | .Lecb_enc_three: |
| 741 | call _aesni_encrypt3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 742 | movups $inout0,($out) # store 3 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 743 | movups $inout1,0x10($out) |
| 744 | movups $inout2,0x20($out) |
| 745 | jmp .Lecb_ret |
| 746 | .align 16 |
| 747 | .Lecb_enc_four: |
| 748 | call _aesni_encrypt4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 749 | movups $inout0,($out) # store 4 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 750 | movups $inout1,0x10($out) |
| 751 | movups $inout2,0x20($out) |
| 752 | movups $inout3,0x30($out) |
| 753 | jmp .Lecb_ret |
| 754 | .align 16 |
| 755 | .Lecb_enc_five: |
| 756 | xorps $inout5,$inout5 |
| 757 | call _aesni_encrypt6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 758 | movups $inout0,($out) # store 5 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 759 | movups $inout1,0x10($out) |
| 760 | movups $inout2,0x20($out) |
| 761 | movups $inout3,0x30($out) |
| 762 | movups $inout4,0x40($out) |
| 763 | jmp .Lecb_ret |
| 764 | .align 16 |
| 765 | .Lecb_enc_six: |
| 766 | call _aesni_encrypt6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 767 | movups $inout0,($out) # store 6 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 768 | movups $inout1,0x10($out) |
| 769 | movups $inout2,0x20($out) |
| 770 | movups $inout3,0x30($out) |
| 771 | movups $inout4,0x40($out) |
| 772 | movups $inout5,0x50($out) |
| 773 | jmp .Lecb_ret |
| 774 | #--------------------------- ECB DECRYPT ------------------------------# |
| 775 | .align 16 |
| 776 | .Lecb_decrypt: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 777 | cmp \$0x80,$len # if ($len<8*16) |
| 778 | jb .Lecb_dec_tail # short input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 779 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 780 | movdqu ($inp),$inout0 # load 8 input blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 781 | movdqu 0x10($inp),$inout1 |
| 782 | movdqu 0x20($inp),$inout2 |
| 783 | movdqu 0x30($inp),$inout3 |
| 784 | movdqu 0x40($inp),$inout4 |
| 785 | movdqu 0x50($inp),$inout5 |
| 786 | movdqu 0x60($inp),$inout6 |
| 787 | movdqu 0x70($inp),$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 788 | lea 0x80($inp),$inp # $inp+=8*16 |
| 789 | sub \$0x80,$len # $len-=8*16 (can be zero) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 790 | jmp .Lecb_dec_loop8_enter |
| 791 | .align 16 |
| 792 | .Lecb_dec_loop8: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 793 | movups $inout0,($out) # store 8 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 794 | mov $key_,$key # restore $key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 795 | movdqu ($inp),$inout0 # load 8 input blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 796 | mov $rnds_,$rounds # restore $rounds |
| 797 | movups $inout1,0x10($out) |
| 798 | movdqu 0x10($inp),$inout1 |
| 799 | movups $inout2,0x20($out) |
| 800 | movdqu 0x20($inp),$inout2 |
| 801 | movups $inout3,0x30($out) |
| 802 | movdqu 0x30($inp),$inout3 |
| 803 | movups $inout4,0x40($out) |
| 804 | movdqu 0x40($inp),$inout4 |
| 805 | movups $inout5,0x50($out) |
| 806 | movdqu 0x50($inp),$inout5 |
| 807 | movups $inout6,0x60($out) |
| 808 | movdqu 0x60($inp),$inout6 |
| 809 | movups $inout7,0x70($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 810 | lea 0x80($out),$out # $out+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 811 | movdqu 0x70($inp),$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 812 | lea 0x80($inp),$inp # $inp+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 813 | .Lecb_dec_loop8_enter: |
| 814 | |
| 815 | call _aesni_decrypt8 |
| 816 | |
| 817 | $movkey ($key_),$rndkey0 |
| 818 | sub \$0x80,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 819 | jnc .Lecb_dec_loop8 # loop if $len-=8*16 didn't borrow |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 820 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 821 | movups $inout0,($out) # store 8 output blocks |
| 822 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 823 | mov $key_,$key # restore $key |
| 824 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 825 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 826 | mov $rnds_,$rounds # restore $rounds |
| 827 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 828 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 829 | movups $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 830 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 831 | movups $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 832 | pxor $inout4,$inout4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 833 | movups $inout5,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 834 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 835 | movups $inout6,0x60($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 836 | pxor $inout6,$inout6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 837 | movups $inout7,0x70($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 838 | pxor $inout7,$inout7 |
| 839 | lea 0x80($out),$out # $out+=8*16 |
| 840 | add \$0x80,$len # restore real remaining $len |
| 841 | jz .Lecb_ret # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 842 | |
| 843 | .Lecb_dec_tail: |
| 844 | movups ($inp),$inout0 |
| 845 | cmp \$0x20,$len |
| 846 | jb .Lecb_dec_one |
| 847 | movups 0x10($inp),$inout1 |
| 848 | je .Lecb_dec_two |
| 849 | movups 0x20($inp),$inout2 |
| 850 | cmp \$0x40,$len |
| 851 | jb .Lecb_dec_three |
| 852 | movups 0x30($inp),$inout3 |
| 853 | je .Lecb_dec_four |
| 854 | movups 0x40($inp),$inout4 |
| 855 | cmp \$0x60,$len |
| 856 | jb .Lecb_dec_five |
| 857 | movups 0x50($inp),$inout5 |
| 858 | je .Lecb_dec_six |
| 859 | movups 0x60($inp),$inout6 |
| 860 | $movkey ($key),$rndkey0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 861 | xorps $inout7,$inout7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 862 | call _aesni_decrypt8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 863 | movups $inout0,($out) # store 7 output blocks |
| 864 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 865 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 866 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 867 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 868 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 869 | movups $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 870 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 871 | movups $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 872 | pxor $inout4,$inout4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 873 | movups $inout5,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 874 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 875 | movups $inout6,0x60($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 876 | pxor $inout6,$inout6 |
| 877 | pxor $inout7,$inout7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 878 | jmp .Lecb_ret |
| 879 | .align 16 |
| 880 | .Lecb_dec_one: |
| 881 | ___ |
| 882 | &aesni_generate1("dec",$key,$rounds); |
| 883 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 884 | movups $inout0,($out) # store one output block |
| 885 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 886 | jmp .Lecb_ret |
| 887 | .align 16 |
| 888 | .Lecb_dec_two: |
| 889 | call _aesni_decrypt2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 890 | movups $inout0,($out) # store 2 output blocks |
| 891 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 892 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 893 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 894 | jmp .Lecb_ret |
| 895 | .align 16 |
| 896 | .Lecb_dec_three: |
| 897 | call _aesni_decrypt3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 898 | movups $inout0,($out) # store 3 output blocks |
| 899 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 900 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 901 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 902 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 903 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 904 | jmp .Lecb_ret |
| 905 | .align 16 |
| 906 | .Lecb_dec_four: |
| 907 | call _aesni_decrypt4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 908 | movups $inout0,($out) # store 4 output blocks |
| 909 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 910 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 911 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 912 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 913 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 914 | movups $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 915 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 916 | jmp .Lecb_ret |
| 917 | .align 16 |
| 918 | .Lecb_dec_five: |
| 919 | xorps $inout5,$inout5 |
| 920 | call _aesni_decrypt6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 921 | movups $inout0,($out) # store 5 output blocks |
| 922 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 923 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 924 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 925 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 926 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 927 | movups $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 928 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 929 | movups $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 930 | pxor $inout4,$inout4 |
| 931 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 932 | jmp .Lecb_ret |
| 933 | .align 16 |
| 934 | .Lecb_dec_six: |
| 935 | call _aesni_decrypt6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 936 | movups $inout0,($out) # store 6 output blocks |
| 937 | pxor $inout0,$inout0 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 938 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 939 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 940 | movups $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 941 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 942 | movups $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 943 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 944 | movups $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 945 | pxor $inout4,$inout4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 946 | movups $inout5,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 947 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 948 | |
| 949 | .Lecb_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 950 | xorps $rndkey0,$rndkey0 # %xmm0 |
| 951 | pxor $rndkey1,$rndkey1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 952 | ___ |
| 953 | $code.=<<___ if ($win64); |
| 954 | movaps (%rsp),%xmm6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 955 | movaps %xmm0,(%rsp) # clear stack |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 956 | movaps 0x10(%rsp),%xmm7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 957 | movaps %xmm0,0x10(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 958 | movaps 0x20(%rsp),%xmm8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 959 | movaps %xmm0,0x20(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 960 | movaps 0x30(%rsp),%xmm9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 961 | movaps %xmm0,0x30(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 962 | lea 0x58(%rsp),%rsp |
| 963 | .Lecb_enc_ret: |
| 964 | ___ |
| 965 | $code.=<<___; |
| 966 | ret |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 967 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 968 | .size ${PREFIX}_ecb_encrypt,.-${PREFIX}_ecb_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 969 | ___ |
| 970 | |
| 971 | { |
| 972 | ###################################################################### |
| 973 | # void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, |
| 974 | # size_t blocks, const AES_KEY *key, |
| 975 | # const char *ivec,char *cmac); |
| 976 | # |
| 977 | # Handles only complete blocks, operates on 64-bit counter and |
| 978 | # does not update *ivec! Nor does it finalize CMAC value |
| 979 | # (see engine/eng_aesni.c for details) |
| 980 | # |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 981 | if (0) { # Omit these functions in BoringSSL |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 982 | my $cmac="%r9"; # 6th argument |
| 983 | |
| 984 | my $increment="%xmm9"; |
| 985 | my $iv="%xmm6"; |
| 986 | my $bswap_mask="%xmm7"; |
| 987 | |
| 988 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 989 | .globl ${PREFIX}_ccm64_encrypt_blocks |
| 990 | .type ${PREFIX}_ccm64_encrypt_blocks,\@function,6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 991 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 992 | ${PREFIX}_ccm64_encrypt_blocks: |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 993 | ___ |
| 994 | $code.=<<___ if ($win64); |
| 995 | lea -0x58(%rsp),%rsp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 996 | movaps %xmm6,(%rsp) # $iv |
| 997 | movaps %xmm7,0x10(%rsp) # $bswap_mask |
| 998 | movaps %xmm8,0x20(%rsp) # $in0 |
| 999 | movaps %xmm9,0x30(%rsp) # $increment |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1000 | .Lccm64_enc_body: |
| 1001 | ___ |
| 1002 | $code.=<<___; |
| 1003 | mov 240($key),$rounds # key->rounds |
| 1004 | movdqu ($ivp),$iv |
| 1005 | movdqa .Lincrement64(%rip),$increment |
| 1006 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 1007 | |
| 1008 | shl \$4,$rounds |
| 1009 | mov \$16,$rnds_ |
| 1010 | lea 0($key),$key_ |
| 1011 | movdqu ($cmac),$inout1 |
| 1012 | movdqa $iv,$inout0 |
| 1013 | lea 32($key,$rounds),$key # end of key schedule |
| 1014 | pshufb $bswap_mask,$iv |
| 1015 | sub %rax,%r10 # twisted $rounds |
| 1016 | jmp .Lccm64_enc_outer |
| 1017 | .align 16 |
| 1018 | .Lccm64_enc_outer: |
| 1019 | $movkey ($key_),$rndkey0 |
| 1020 | mov %r10,%rax |
| 1021 | movups ($inp),$in0 # load inp |
| 1022 | |
| 1023 | xorps $rndkey0,$inout0 # counter |
| 1024 | $movkey 16($key_),$rndkey1 |
| 1025 | xorps $in0,$rndkey0 |
| 1026 | xorps $rndkey0,$inout1 # cmac^=inp |
| 1027 | $movkey 32($key_),$rndkey0 |
| 1028 | |
| 1029 | .Lccm64_enc2_loop: |
| 1030 | aesenc $rndkey1,$inout0 |
| 1031 | aesenc $rndkey1,$inout1 |
| 1032 | $movkey ($key,%rax),$rndkey1 |
| 1033 | add \$32,%rax |
| 1034 | aesenc $rndkey0,$inout0 |
| 1035 | aesenc $rndkey0,$inout1 |
| 1036 | $movkey -16($key,%rax),$rndkey0 |
| 1037 | jnz .Lccm64_enc2_loop |
| 1038 | aesenc $rndkey1,$inout0 |
| 1039 | aesenc $rndkey1,$inout1 |
| 1040 | paddq $increment,$iv |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1041 | dec $len # $len-- ($len is in blocks) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1042 | aesenclast $rndkey0,$inout0 |
| 1043 | aesenclast $rndkey0,$inout1 |
| 1044 | |
| 1045 | lea 16($inp),$inp |
| 1046 | xorps $inout0,$in0 # inp ^= E(iv) |
| 1047 | movdqa $iv,$inout0 |
| 1048 | movups $in0,($out) # save output |
| 1049 | pshufb $bswap_mask,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1050 | lea 16($out),$out # $out+=16 |
| 1051 | jnz .Lccm64_enc_outer # loop if ($len!=0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1052 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1053 | pxor $rndkey0,$rndkey0 # clear register bank |
| 1054 | pxor $rndkey1,$rndkey1 |
| 1055 | pxor $inout0,$inout0 |
| 1056 | movups $inout1,($cmac) # store resulting mac |
| 1057 | pxor $inout1,$inout1 |
| 1058 | pxor $in0,$in0 |
| 1059 | pxor $iv,$iv |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1060 | ___ |
| 1061 | $code.=<<___ if ($win64); |
| 1062 | movaps (%rsp),%xmm6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1063 | movaps %xmm0,(%rsp) # clear stack |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1064 | movaps 0x10(%rsp),%xmm7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1065 | movaps %xmm0,0x10(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1066 | movaps 0x20(%rsp),%xmm8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1067 | movaps %xmm0,0x20(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1068 | movaps 0x30(%rsp),%xmm9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1069 | movaps %xmm0,0x30(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1070 | lea 0x58(%rsp),%rsp |
| 1071 | .Lccm64_enc_ret: |
| 1072 | ___ |
| 1073 | $code.=<<___; |
| 1074 | ret |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1075 | .size ${PREFIX}_ccm64_encrypt_blocks,.-${PREFIX}_ccm64_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1076 | ___ |
| 1077 | ###################################################################### |
| 1078 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1079 | .globl ${PREFIX}_ccm64_decrypt_blocks |
| 1080 | .type ${PREFIX}_ccm64_decrypt_blocks,\@function,6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1081 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1082 | ${PREFIX}_ccm64_decrypt_blocks: |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1083 | ___ |
| 1084 | $code.=<<___ if ($win64); |
| 1085 | lea -0x58(%rsp),%rsp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1086 | movaps %xmm6,(%rsp) # $iv |
| 1087 | movaps %xmm7,0x10(%rsp) # $bswap_mask |
| 1088 | movaps %xmm8,0x20(%rsp) # $in8 |
| 1089 | movaps %xmm9,0x30(%rsp) # $increment |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1090 | .Lccm64_dec_body: |
| 1091 | ___ |
| 1092 | $code.=<<___; |
| 1093 | mov 240($key),$rounds # key->rounds |
| 1094 | movups ($ivp),$iv |
| 1095 | movdqu ($cmac),$inout1 |
| 1096 | movdqa .Lincrement64(%rip),$increment |
| 1097 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 1098 | |
| 1099 | movaps $iv,$inout0 |
| 1100 | mov $rounds,$rnds_ |
| 1101 | mov $key,$key_ |
| 1102 | pshufb $bswap_mask,$iv |
| 1103 | ___ |
| 1104 | &aesni_generate1("enc",$key,$rounds); |
| 1105 | $code.=<<___; |
| 1106 | shl \$4,$rnds_ |
| 1107 | mov \$16,$rounds |
| 1108 | movups ($inp),$in0 # load inp |
| 1109 | paddq $increment,$iv |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1110 | lea 16($inp),$inp # $inp+=16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1111 | sub %r10,%rax # twisted $rounds |
| 1112 | lea 32($key_,$rnds_),$key # end of key schedule |
| 1113 | mov %rax,%r10 |
| 1114 | jmp .Lccm64_dec_outer |
| 1115 | .align 16 |
| 1116 | .Lccm64_dec_outer: |
| 1117 | xorps $inout0,$in0 # inp ^= E(iv) |
| 1118 | movdqa $iv,$inout0 |
| 1119 | movups $in0,($out) # save output |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1120 | lea 16($out),$out # $out+=16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1121 | pshufb $bswap_mask,$inout0 |
| 1122 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1123 | sub \$1,$len # $len-- ($len is in blocks) |
| 1124 | jz .Lccm64_dec_break # if ($len==0) break |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1125 | |
| 1126 | $movkey ($key_),$rndkey0 |
| 1127 | mov %r10,%rax |
| 1128 | $movkey 16($key_),$rndkey1 |
| 1129 | xorps $rndkey0,$in0 |
| 1130 | xorps $rndkey0,$inout0 |
| 1131 | xorps $in0,$inout1 # cmac^=out |
| 1132 | $movkey 32($key_),$rndkey0 |
| 1133 | jmp .Lccm64_dec2_loop |
| 1134 | .align 16 |
| 1135 | .Lccm64_dec2_loop: |
| 1136 | aesenc $rndkey1,$inout0 |
| 1137 | aesenc $rndkey1,$inout1 |
| 1138 | $movkey ($key,%rax),$rndkey1 |
| 1139 | add \$32,%rax |
| 1140 | aesenc $rndkey0,$inout0 |
| 1141 | aesenc $rndkey0,$inout1 |
| 1142 | $movkey -16($key,%rax),$rndkey0 |
| 1143 | jnz .Lccm64_dec2_loop |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1144 | movups ($inp),$in0 # load input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1145 | paddq $increment,$iv |
| 1146 | aesenc $rndkey1,$inout0 |
| 1147 | aesenc $rndkey1,$inout1 |
| 1148 | aesenclast $rndkey0,$inout0 |
| 1149 | aesenclast $rndkey0,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1150 | lea 16($inp),$inp # $inp+=16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1151 | jmp .Lccm64_dec_outer |
| 1152 | |
| 1153 | .align 16 |
| 1154 | .Lccm64_dec_break: |
| 1155 | #xorps $in0,$inout1 # cmac^=out |
| 1156 | mov 240($key_),$rounds |
| 1157 | ___ |
| 1158 | &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); |
| 1159 | $code.=<<___; |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1160 | pxor $rndkey0,$rndkey0 # clear register bank |
| 1161 | pxor $rndkey1,$rndkey1 |
| 1162 | pxor $inout0,$inout0 |
| 1163 | movups $inout1,($cmac) # store resulting mac |
| 1164 | pxor $inout1,$inout1 |
| 1165 | pxor $in0,$in0 |
| 1166 | pxor $iv,$iv |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1167 | ___ |
| 1168 | $code.=<<___ if ($win64); |
| 1169 | movaps (%rsp),%xmm6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1170 | movaps %xmm0,(%rsp) # clear stack |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1171 | movaps 0x10(%rsp),%xmm7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1172 | movaps %xmm0,0x10(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1173 | movaps 0x20(%rsp),%xmm8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1174 | movaps %xmm0,0x20(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1175 | movaps 0x30(%rsp),%xmm9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1176 | movaps %xmm0,0x30(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1177 | lea 0x58(%rsp),%rsp |
| 1178 | .Lccm64_dec_ret: |
| 1179 | ___ |
| 1180 | $code.=<<___; |
| 1181 | ret |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1182 | .size ${PREFIX}_ccm64_decrypt_blocks,.-${PREFIX}_ccm64_decrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1183 | ___ |
| 1184 | } |
| 1185 | ###################################################################### |
| 1186 | # void aesni_ctr32_encrypt_blocks (const void *in, void *out, |
| 1187 | # size_t blocks, const AES_KEY *key, |
| 1188 | # const char *ivec); |
| 1189 | # |
| 1190 | # Handles only complete blocks, operates on 32-bit counter and |
| 1191 | # does not update *ivec! (see crypto/modes/ctr128.c for details) |
| 1192 | # |
| 1193 | # Overhaul based on suggestions from Shay Gueron and Vlad Krasnov, |
| 1194 | # http://rt.openssl.org/Ticket/Display.html?id=3021&user=guest&pass=guest. |
| 1195 | # Keywords are full unroll and modulo-schedule counter calculations |
| 1196 | # with zero-round key xor. |
| 1197 | { |
| 1198 | my ($in0,$in1,$in2,$in3,$in4,$in5)=map("%xmm$_",(10..15)); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1199 | my ($key0,$ctr)=("%ebp","${ivp}d"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1200 | my $frame_size = 0x80 + ($win64?160:0); |
| 1201 | |
| 1202 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1203 | .globl ${PREFIX}_ctr32_encrypt_blocks |
| 1204 | .type ${PREFIX}_ctr32_encrypt_blocks,\@function,5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1205 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1206 | ${PREFIX}_ctr32_encrypt_blocks: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1207 | .cfi_startproc |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 1208 | #ifndef NDEBUG |
| 1209 | #ifndef BORINGSSL_FIPS |
| 1210 | movb \$1,BORINGSSL_function_hit(%rip) |
| 1211 | #endif |
| 1212 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1213 | cmp \$1,$len |
| 1214 | jne .Lctr32_bulk |
| 1215 | |
| 1216 | # handle single block without allocating stack frame, |
| 1217 | # useful when handling edges |
| 1218 | movups ($ivp),$inout0 |
| 1219 | movups ($inp),$inout1 |
| 1220 | mov 240($key),%edx # key->rounds |
| 1221 | ___ |
| 1222 | &aesni_generate1("enc",$key,"%edx"); |
| 1223 | $code.=<<___; |
| 1224 | pxor $rndkey0,$rndkey0 # clear register bank |
| 1225 | pxor $rndkey1,$rndkey1 |
| 1226 | xorps $inout1,$inout0 |
| 1227 | pxor $inout1,$inout1 |
| 1228 | movups $inout0,($out) |
| 1229 | xorps $inout0,$inout0 |
| 1230 | jmp .Lctr32_epilogue |
| 1231 | |
| 1232 | .align 16 |
| 1233 | .Lctr32_bulk: |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1234 | lea (%rsp),$key_ # use $key_ as frame pointer |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1235 | .cfi_def_cfa_register $key_ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1236 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1237 | .cfi_push %rbp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1238 | sub \$$frame_size,%rsp |
| 1239 | and \$-16,%rsp # Linux kernel stack can be incorrectly seeded |
| 1240 | ___ |
| 1241 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1242 | movaps %xmm6,-0xa8($key_) # offload everything |
| 1243 | movaps %xmm7,-0x98($key_) |
| 1244 | movaps %xmm8,-0x88($key_) |
| 1245 | movaps %xmm9,-0x78($key_) |
| 1246 | movaps %xmm10,-0x68($key_) |
| 1247 | movaps %xmm11,-0x58($key_) |
| 1248 | movaps %xmm12,-0x48($key_) |
| 1249 | movaps %xmm13,-0x38($key_) |
| 1250 | movaps %xmm14,-0x28($key_) |
| 1251 | movaps %xmm15,-0x18($key_) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1252 | .Lctr32_body: |
| 1253 | ___ |
| 1254 | $code.=<<___; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1255 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1256 | # 8 16-byte words on top of stack are counter values |
| 1257 | # xor-ed with zero-round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1258 | |
| 1259 | movdqu ($ivp),$inout0 |
| 1260 | movdqu ($key),$rndkey0 |
| 1261 | mov 12($ivp),$ctr # counter LSB |
| 1262 | pxor $rndkey0,$inout0 |
| 1263 | mov 12($key),$key0 # 0-round key LSB |
| 1264 | movdqa $inout0,0x00(%rsp) # populate counter block |
| 1265 | bswap $ctr |
| 1266 | movdqa $inout0,$inout1 |
| 1267 | movdqa $inout0,$inout2 |
| 1268 | movdqa $inout0,$inout3 |
| 1269 | movdqa $inout0,0x40(%rsp) |
| 1270 | movdqa $inout0,0x50(%rsp) |
| 1271 | movdqa $inout0,0x60(%rsp) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1272 | mov %rdx,%r10 # about to borrow %rdx |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1273 | movdqa $inout0,0x70(%rsp) |
| 1274 | |
| 1275 | lea 1($ctr),%rax |
| 1276 | lea 2($ctr),%rdx |
| 1277 | bswap %eax |
| 1278 | bswap %edx |
| 1279 | xor $key0,%eax |
| 1280 | xor $key0,%edx |
| 1281 | pinsrd \$3,%eax,$inout1 |
| 1282 | lea 3($ctr),%rax |
| 1283 | movdqa $inout1,0x10(%rsp) |
| 1284 | pinsrd \$3,%edx,$inout2 |
| 1285 | bswap %eax |
| 1286 | mov %r10,%rdx # restore %rdx |
| 1287 | lea 4($ctr),%r10 |
| 1288 | movdqa $inout2,0x20(%rsp) |
| 1289 | xor $key0,%eax |
| 1290 | bswap %r10d |
| 1291 | pinsrd \$3,%eax,$inout3 |
| 1292 | xor $key0,%r10d |
| 1293 | movdqa $inout3,0x30(%rsp) |
| 1294 | lea 5($ctr),%r9 |
| 1295 | mov %r10d,0x40+12(%rsp) |
| 1296 | bswap %r9d |
| 1297 | lea 6($ctr),%r10 |
| 1298 | mov 240($key),$rounds # key->rounds |
| 1299 | xor $key0,%r9d |
| 1300 | bswap %r10d |
| 1301 | mov %r9d,0x50+12(%rsp) |
| 1302 | xor $key0,%r10d |
| 1303 | lea 7($ctr),%r9 |
| 1304 | mov %r10d,0x60+12(%rsp) |
| 1305 | bswap %r9d |
Robert Sloan | 2424d84 | 2017-05-01 07:46:28 -0700 | [diff] [blame] | 1306 | leaq OPENSSL_ia32cap_P(%rip),%r10 |
Robert Sloan | 572a4e2 | 2017-04-17 10:52:19 -0700 | [diff] [blame] | 1307 | mov 4(%r10),%r10d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1308 | xor $key0,%r9d |
| 1309 | and \$`1<<26|1<<22`,%r10d # isolate XSAVE+MOVBE |
| 1310 | mov %r9d,0x70+12(%rsp) |
| 1311 | |
| 1312 | $movkey 0x10($key),$rndkey1 |
| 1313 | |
| 1314 | movdqa 0x40(%rsp),$inout4 |
| 1315 | movdqa 0x50(%rsp),$inout5 |
| 1316 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1317 | cmp \$8,$len # $len is in blocks |
| 1318 | jb .Lctr32_tail # short input if ($len<8) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1319 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1320 | sub \$6,$len # $len is biased by -6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1321 | cmp \$`1<<22`,%r10d # check for MOVBE without XSAVE |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1322 | je .Lctr32_6x # [which denotes Atom Silvermont] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1323 | |
| 1324 | lea 0x80($key),$key # size optimization |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1325 | sub \$2,$len # $len is biased by -8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1326 | jmp .Lctr32_loop8 |
| 1327 | |
| 1328 | .align 16 |
| 1329 | .Lctr32_6x: |
| 1330 | shl \$4,$rounds |
| 1331 | mov \$48,$rnds_ |
| 1332 | bswap $key0 |
| 1333 | lea 32($key,$rounds),$key # end of key schedule |
| 1334 | sub %rax,%r10 # twisted $rounds |
| 1335 | jmp .Lctr32_loop6 |
| 1336 | |
| 1337 | .align 16 |
| 1338 | .Lctr32_loop6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1339 | add \$6,$ctr # next counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1340 | $movkey -48($key,$rnds_),$rndkey0 |
| 1341 | aesenc $rndkey1,$inout0 |
| 1342 | mov $ctr,%eax |
| 1343 | xor $key0,%eax |
| 1344 | aesenc $rndkey1,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1345 | movbe %eax,`0x00+12`(%rsp) # store next counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1346 | lea 1($ctr),%eax |
| 1347 | aesenc $rndkey1,$inout2 |
| 1348 | xor $key0,%eax |
| 1349 | movbe %eax,`0x10+12`(%rsp) |
| 1350 | aesenc $rndkey1,$inout3 |
| 1351 | lea 2($ctr),%eax |
| 1352 | xor $key0,%eax |
| 1353 | aesenc $rndkey1,$inout4 |
| 1354 | movbe %eax,`0x20+12`(%rsp) |
| 1355 | lea 3($ctr),%eax |
| 1356 | aesenc $rndkey1,$inout5 |
| 1357 | $movkey -32($key,$rnds_),$rndkey1 |
| 1358 | xor $key0,%eax |
| 1359 | |
| 1360 | aesenc $rndkey0,$inout0 |
| 1361 | movbe %eax,`0x30+12`(%rsp) |
| 1362 | lea 4($ctr),%eax |
| 1363 | aesenc $rndkey0,$inout1 |
| 1364 | xor $key0,%eax |
| 1365 | movbe %eax,`0x40+12`(%rsp) |
| 1366 | aesenc $rndkey0,$inout2 |
| 1367 | lea 5($ctr),%eax |
| 1368 | xor $key0,%eax |
| 1369 | aesenc $rndkey0,$inout3 |
| 1370 | movbe %eax,`0x50+12`(%rsp) |
| 1371 | mov %r10,%rax # mov $rnds_,$rounds |
| 1372 | aesenc $rndkey0,$inout4 |
| 1373 | aesenc $rndkey0,$inout5 |
| 1374 | $movkey -16($key,$rnds_),$rndkey0 |
| 1375 | |
| 1376 | call .Lenc_loop6 |
| 1377 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1378 | movdqu ($inp),$inout6 # load 6 input blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1379 | movdqu 0x10($inp),$inout7 |
| 1380 | movdqu 0x20($inp),$in0 |
| 1381 | movdqu 0x30($inp),$in1 |
| 1382 | movdqu 0x40($inp),$in2 |
| 1383 | movdqu 0x50($inp),$in3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1384 | lea 0x60($inp),$inp # $inp+=6*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1385 | $movkey -64($key,$rnds_),$rndkey1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1386 | pxor $inout0,$inout6 # inp^=E(ctr) |
| 1387 | movaps 0x00(%rsp),$inout0 # load next counter [xor-ed with 0 round] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1388 | pxor $inout1,$inout7 |
| 1389 | movaps 0x10(%rsp),$inout1 |
| 1390 | pxor $inout2,$in0 |
| 1391 | movaps 0x20(%rsp),$inout2 |
| 1392 | pxor $inout3,$in1 |
| 1393 | movaps 0x30(%rsp),$inout3 |
| 1394 | pxor $inout4,$in2 |
| 1395 | movaps 0x40(%rsp),$inout4 |
| 1396 | pxor $inout5,$in3 |
| 1397 | movaps 0x50(%rsp),$inout5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1398 | movdqu $inout6,($out) # store 6 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1399 | movdqu $inout7,0x10($out) |
| 1400 | movdqu $in0,0x20($out) |
| 1401 | movdqu $in1,0x30($out) |
| 1402 | movdqu $in2,0x40($out) |
| 1403 | movdqu $in3,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1404 | lea 0x60($out),$out # $out+=6*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1405 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1406 | sub \$6,$len |
| 1407 | jnc .Lctr32_loop6 # loop if $len-=6 didn't borrow |
| 1408 | |
| 1409 | add \$6,$len # restore real remaining $len |
| 1410 | jz .Lctr32_done # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1411 | |
| 1412 | lea -48($rnds_),$rounds |
| 1413 | lea -80($key,$rnds_),$key # restore $key |
| 1414 | neg $rounds |
| 1415 | shr \$4,$rounds # restore $rounds |
| 1416 | jmp .Lctr32_tail |
| 1417 | |
| 1418 | .align 32 |
| 1419 | .Lctr32_loop8: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1420 | add \$8,$ctr # next counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1421 | movdqa 0x60(%rsp),$inout6 |
| 1422 | aesenc $rndkey1,$inout0 |
| 1423 | mov $ctr,%r9d |
| 1424 | movdqa 0x70(%rsp),$inout7 |
| 1425 | aesenc $rndkey1,$inout1 |
| 1426 | bswap %r9d |
| 1427 | $movkey 0x20-0x80($key),$rndkey0 |
| 1428 | aesenc $rndkey1,$inout2 |
| 1429 | xor $key0,%r9d |
| 1430 | nop |
| 1431 | aesenc $rndkey1,$inout3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1432 | mov %r9d,0x00+12(%rsp) # store next counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1433 | lea 1($ctr),%r9 |
| 1434 | aesenc $rndkey1,$inout4 |
| 1435 | aesenc $rndkey1,$inout5 |
| 1436 | aesenc $rndkey1,$inout6 |
| 1437 | aesenc $rndkey1,$inout7 |
| 1438 | $movkey 0x30-0x80($key),$rndkey1 |
| 1439 | ___ |
| 1440 | for($i=2;$i<8;$i++) { |
| 1441 | my $rndkeyx = ($i&1)?$rndkey1:$rndkey0; |
| 1442 | $code.=<<___; |
| 1443 | bswap %r9d |
| 1444 | aesenc $rndkeyx,$inout0 |
| 1445 | aesenc $rndkeyx,$inout1 |
| 1446 | xor $key0,%r9d |
| 1447 | .byte 0x66,0x90 |
| 1448 | aesenc $rndkeyx,$inout2 |
| 1449 | aesenc $rndkeyx,$inout3 |
| 1450 | mov %r9d,`0x10*($i-1)`+12(%rsp) |
| 1451 | lea $i($ctr),%r9 |
| 1452 | aesenc $rndkeyx,$inout4 |
| 1453 | aesenc $rndkeyx,$inout5 |
| 1454 | aesenc $rndkeyx,$inout6 |
| 1455 | aesenc $rndkeyx,$inout7 |
| 1456 | $movkey `0x20+0x10*$i`-0x80($key),$rndkeyx |
| 1457 | ___ |
| 1458 | } |
| 1459 | $code.=<<___; |
| 1460 | bswap %r9d |
| 1461 | aesenc $rndkey0,$inout0 |
| 1462 | aesenc $rndkey0,$inout1 |
| 1463 | aesenc $rndkey0,$inout2 |
| 1464 | xor $key0,%r9d |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1465 | movdqu 0x00($inp),$in0 # start loading input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1466 | aesenc $rndkey0,$inout3 |
| 1467 | mov %r9d,0x70+12(%rsp) |
| 1468 | cmp \$11,$rounds |
| 1469 | aesenc $rndkey0,$inout4 |
| 1470 | aesenc $rndkey0,$inout5 |
| 1471 | aesenc $rndkey0,$inout6 |
| 1472 | aesenc $rndkey0,$inout7 |
| 1473 | $movkey 0xa0-0x80($key),$rndkey0 |
| 1474 | |
| 1475 | jb .Lctr32_enc_done |
| 1476 | |
| 1477 | aesenc $rndkey1,$inout0 |
| 1478 | aesenc $rndkey1,$inout1 |
| 1479 | aesenc $rndkey1,$inout2 |
| 1480 | aesenc $rndkey1,$inout3 |
| 1481 | aesenc $rndkey1,$inout4 |
| 1482 | aesenc $rndkey1,$inout5 |
| 1483 | aesenc $rndkey1,$inout6 |
| 1484 | aesenc $rndkey1,$inout7 |
| 1485 | $movkey 0xb0-0x80($key),$rndkey1 |
| 1486 | |
| 1487 | aesenc $rndkey0,$inout0 |
| 1488 | aesenc $rndkey0,$inout1 |
| 1489 | aesenc $rndkey0,$inout2 |
| 1490 | aesenc $rndkey0,$inout3 |
| 1491 | aesenc $rndkey0,$inout4 |
| 1492 | aesenc $rndkey0,$inout5 |
| 1493 | aesenc $rndkey0,$inout6 |
| 1494 | aesenc $rndkey0,$inout7 |
| 1495 | $movkey 0xc0-0x80($key),$rndkey0 |
| 1496 | je .Lctr32_enc_done |
| 1497 | |
| 1498 | aesenc $rndkey1,$inout0 |
| 1499 | aesenc $rndkey1,$inout1 |
| 1500 | aesenc $rndkey1,$inout2 |
| 1501 | aesenc $rndkey1,$inout3 |
| 1502 | aesenc $rndkey1,$inout4 |
| 1503 | aesenc $rndkey1,$inout5 |
| 1504 | aesenc $rndkey1,$inout6 |
| 1505 | aesenc $rndkey1,$inout7 |
| 1506 | $movkey 0xd0-0x80($key),$rndkey1 |
| 1507 | |
| 1508 | aesenc $rndkey0,$inout0 |
| 1509 | aesenc $rndkey0,$inout1 |
| 1510 | aesenc $rndkey0,$inout2 |
| 1511 | aesenc $rndkey0,$inout3 |
| 1512 | aesenc $rndkey0,$inout4 |
| 1513 | aesenc $rndkey0,$inout5 |
| 1514 | aesenc $rndkey0,$inout6 |
| 1515 | aesenc $rndkey0,$inout7 |
| 1516 | $movkey 0xe0-0x80($key),$rndkey0 |
| 1517 | jmp .Lctr32_enc_done |
| 1518 | |
| 1519 | .align 16 |
| 1520 | .Lctr32_enc_done: |
| 1521 | movdqu 0x10($inp),$in1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1522 | pxor $rndkey0,$in0 # input^=round[last] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1523 | movdqu 0x20($inp),$in2 |
| 1524 | pxor $rndkey0,$in1 |
| 1525 | movdqu 0x30($inp),$in3 |
| 1526 | pxor $rndkey0,$in2 |
| 1527 | movdqu 0x40($inp),$in4 |
| 1528 | pxor $rndkey0,$in3 |
| 1529 | movdqu 0x50($inp),$in5 |
| 1530 | pxor $rndkey0,$in4 |
| 1531 | pxor $rndkey0,$in5 |
| 1532 | aesenc $rndkey1,$inout0 |
| 1533 | aesenc $rndkey1,$inout1 |
| 1534 | aesenc $rndkey1,$inout2 |
| 1535 | aesenc $rndkey1,$inout3 |
| 1536 | aesenc $rndkey1,$inout4 |
| 1537 | aesenc $rndkey1,$inout5 |
| 1538 | aesenc $rndkey1,$inout6 |
| 1539 | aesenc $rndkey1,$inout7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1540 | movdqu 0x60($inp),$rndkey1 # borrow $rndkey1 for inp[6] |
| 1541 | lea 0x80($inp),$inp # $inp+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1542 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1543 | aesenclast $in0,$inout0 # $inN is inp[N]^round[last] |
| 1544 | pxor $rndkey0,$rndkey1 # borrowed $rndkey |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1545 | movdqu 0x70-0x80($inp),$in0 |
| 1546 | aesenclast $in1,$inout1 |
| 1547 | pxor $rndkey0,$in0 |
| 1548 | movdqa 0x00(%rsp),$in1 # load next counter block |
| 1549 | aesenclast $in2,$inout2 |
| 1550 | aesenclast $in3,$inout3 |
| 1551 | movdqa 0x10(%rsp),$in2 |
| 1552 | movdqa 0x20(%rsp),$in3 |
| 1553 | aesenclast $in4,$inout4 |
| 1554 | aesenclast $in5,$inout5 |
| 1555 | movdqa 0x30(%rsp),$in4 |
| 1556 | movdqa 0x40(%rsp),$in5 |
| 1557 | aesenclast $rndkey1,$inout6 |
| 1558 | movdqa 0x50(%rsp),$rndkey0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1559 | $movkey 0x10-0x80($key),$rndkey1#real 1st-round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1560 | aesenclast $in0,$inout7 |
| 1561 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1562 | movups $inout0,($out) # store 8 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1563 | movdqa $in1,$inout0 |
| 1564 | movups $inout1,0x10($out) |
| 1565 | movdqa $in2,$inout1 |
| 1566 | movups $inout2,0x20($out) |
| 1567 | movdqa $in3,$inout2 |
| 1568 | movups $inout3,0x30($out) |
| 1569 | movdqa $in4,$inout3 |
| 1570 | movups $inout4,0x40($out) |
| 1571 | movdqa $in5,$inout4 |
| 1572 | movups $inout5,0x50($out) |
| 1573 | movdqa $rndkey0,$inout5 |
| 1574 | movups $inout6,0x60($out) |
| 1575 | movups $inout7,0x70($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1576 | lea 0x80($out),$out # $out+=8*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1577 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1578 | sub \$8,$len |
| 1579 | jnc .Lctr32_loop8 # loop if $len-=8 didn't borrow |
| 1580 | |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1581 | add \$8,$len # restore real remaining $len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1582 | jz .Lctr32_done # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1583 | lea -0x80($key),$key |
| 1584 | |
| 1585 | .Lctr32_tail: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1586 | # note that at this point $inout0..5 are populated with |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1587 | # counter values xor-ed with 0-round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1588 | lea 16($key),$key |
| 1589 | cmp \$4,$len |
| 1590 | jb .Lctr32_loop3 |
| 1591 | je .Lctr32_loop4 |
| 1592 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1593 | # if ($len>4) compute 7 E(counter) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1594 | shl \$4,$rounds |
| 1595 | movdqa 0x60(%rsp),$inout6 |
| 1596 | pxor $inout7,$inout7 |
| 1597 | |
| 1598 | $movkey 16($key),$rndkey0 |
| 1599 | aesenc $rndkey1,$inout0 |
| 1600 | aesenc $rndkey1,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1601 | lea 32-16($key,$rounds),$key# prepare for .Lenc_loop8_enter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1602 | neg %rax |
| 1603 | aesenc $rndkey1,$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1604 | add \$16,%rax # prepare for .Lenc_loop8_enter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1605 | movups ($inp),$in0 |
| 1606 | aesenc $rndkey1,$inout3 |
| 1607 | aesenc $rndkey1,$inout4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1608 | movups 0x10($inp),$in1 # pre-load input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1609 | movups 0x20($inp),$in2 |
| 1610 | aesenc $rndkey1,$inout5 |
| 1611 | aesenc $rndkey1,$inout6 |
| 1612 | |
| 1613 | call .Lenc_loop8_enter |
| 1614 | |
| 1615 | movdqu 0x30($inp),$in3 |
| 1616 | pxor $in0,$inout0 |
| 1617 | movdqu 0x40($inp),$in0 |
| 1618 | pxor $in1,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1619 | movdqu $inout0,($out) # store output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1620 | pxor $in2,$inout2 |
| 1621 | movdqu $inout1,0x10($out) |
| 1622 | pxor $in3,$inout3 |
| 1623 | movdqu $inout2,0x20($out) |
| 1624 | pxor $in0,$inout4 |
| 1625 | movdqu $inout3,0x30($out) |
| 1626 | movdqu $inout4,0x40($out) |
| 1627 | cmp \$6,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1628 | jb .Lctr32_done # $len was 5, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1629 | |
| 1630 | movups 0x50($inp),$in1 |
| 1631 | xorps $in1,$inout5 |
| 1632 | movups $inout5,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1633 | je .Lctr32_done # $len was 6, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1634 | |
| 1635 | movups 0x60($inp),$in2 |
| 1636 | xorps $in2,$inout6 |
| 1637 | movups $inout6,0x60($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1638 | jmp .Lctr32_done # $len was 7, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1639 | |
| 1640 | .align 32 |
| 1641 | .Lctr32_loop4: |
| 1642 | aesenc $rndkey1,$inout0 |
| 1643 | lea 16($key),$key |
| 1644 | dec $rounds |
| 1645 | aesenc $rndkey1,$inout1 |
| 1646 | aesenc $rndkey1,$inout2 |
| 1647 | aesenc $rndkey1,$inout3 |
| 1648 | $movkey ($key),$rndkey1 |
| 1649 | jnz .Lctr32_loop4 |
| 1650 | aesenclast $rndkey1,$inout0 |
| 1651 | aesenclast $rndkey1,$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1652 | movups ($inp),$in0 # load input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1653 | movups 0x10($inp),$in1 |
| 1654 | aesenclast $rndkey1,$inout2 |
| 1655 | aesenclast $rndkey1,$inout3 |
| 1656 | movups 0x20($inp),$in2 |
| 1657 | movups 0x30($inp),$in3 |
| 1658 | |
| 1659 | xorps $in0,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1660 | movups $inout0,($out) # store output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1661 | xorps $in1,$inout1 |
| 1662 | movups $inout1,0x10($out) |
| 1663 | pxor $in2,$inout2 |
| 1664 | movdqu $inout2,0x20($out) |
| 1665 | pxor $in3,$inout3 |
| 1666 | movdqu $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1667 | jmp .Lctr32_done # $len was 4, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1668 | |
| 1669 | .align 32 |
| 1670 | .Lctr32_loop3: |
| 1671 | aesenc $rndkey1,$inout0 |
| 1672 | lea 16($key),$key |
| 1673 | dec $rounds |
| 1674 | aesenc $rndkey1,$inout1 |
| 1675 | aesenc $rndkey1,$inout2 |
| 1676 | $movkey ($key),$rndkey1 |
| 1677 | jnz .Lctr32_loop3 |
| 1678 | aesenclast $rndkey1,$inout0 |
| 1679 | aesenclast $rndkey1,$inout1 |
| 1680 | aesenclast $rndkey1,$inout2 |
| 1681 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1682 | movups ($inp),$in0 # load input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1683 | xorps $in0,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1684 | movups $inout0,($out) # store output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1685 | cmp \$2,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1686 | jb .Lctr32_done # $len was 1, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1687 | |
| 1688 | movups 0x10($inp),$in1 |
| 1689 | xorps $in1,$inout1 |
| 1690 | movups $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1691 | je .Lctr32_done # $len was 2, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1692 | |
| 1693 | movups 0x20($inp),$in2 |
| 1694 | xorps $in2,$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1695 | movups $inout2,0x20($out) # $len was 3, stop store |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1696 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1697 | .Lctr32_done: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1698 | xorps %xmm0,%xmm0 # clear register bank |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1699 | xor $key0,$key0 |
| 1700 | pxor %xmm1,%xmm1 |
| 1701 | pxor %xmm2,%xmm2 |
| 1702 | pxor %xmm3,%xmm3 |
| 1703 | pxor %xmm4,%xmm4 |
| 1704 | pxor %xmm5,%xmm5 |
| 1705 | ___ |
| 1706 | $code.=<<___ if (!$win64); |
| 1707 | pxor %xmm6,%xmm6 |
| 1708 | pxor %xmm7,%xmm7 |
| 1709 | movaps %xmm0,0x00(%rsp) # clear stack |
| 1710 | pxor %xmm8,%xmm8 |
| 1711 | movaps %xmm0,0x10(%rsp) |
| 1712 | pxor %xmm9,%xmm9 |
| 1713 | movaps %xmm0,0x20(%rsp) |
| 1714 | pxor %xmm10,%xmm10 |
| 1715 | movaps %xmm0,0x30(%rsp) |
| 1716 | pxor %xmm11,%xmm11 |
| 1717 | movaps %xmm0,0x40(%rsp) |
| 1718 | pxor %xmm12,%xmm12 |
| 1719 | movaps %xmm0,0x50(%rsp) |
| 1720 | pxor %xmm13,%xmm13 |
| 1721 | movaps %xmm0,0x60(%rsp) |
| 1722 | pxor %xmm14,%xmm14 |
| 1723 | movaps %xmm0,0x70(%rsp) |
| 1724 | pxor %xmm15,%xmm15 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1725 | ___ |
| 1726 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1727 | movaps -0xa8($key_),%xmm6 |
| 1728 | movaps %xmm0,-0xa8($key_) # clear stack |
| 1729 | movaps -0x98($key_),%xmm7 |
| 1730 | movaps %xmm0,-0x98($key_) |
| 1731 | movaps -0x88($key_),%xmm8 |
| 1732 | movaps %xmm0,-0x88($key_) |
| 1733 | movaps -0x78($key_),%xmm9 |
| 1734 | movaps %xmm0,-0x78($key_) |
| 1735 | movaps -0x68($key_),%xmm10 |
| 1736 | movaps %xmm0,-0x68($key_) |
| 1737 | movaps -0x58($key_),%xmm11 |
| 1738 | movaps %xmm0,-0x58($key_) |
| 1739 | movaps -0x48($key_),%xmm12 |
| 1740 | movaps %xmm0,-0x48($key_) |
| 1741 | movaps -0x38($key_),%xmm13 |
| 1742 | movaps %xmm0,-0x38($key_) |
| 1743 | movaps -0x28($key_),%xmm14 |
| 1744 | movaps %xmm0,-0x28($key_) |
| 1745 | movaps -0x18($key_),%xmm15 |
| 1746 | movaps %xmm0,-0x18($key_) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1747 | movaps %xmm0,0x00(%rsp) |
| 1748 | movaps %xmm0,0x10(%rsp) |
| 1749 | movaps %xmm0,0x20(%rsp) |
| 1750 | movaps %xmm0,0x30(%rsp) |
| 1751 | movaps %xmm0,0x40(%rsp) |
| 1752 | movaps %xmm0,0x50(%rsp) |
| 1753 | movaps %xmm0,0x60(%rsp) |
| 1754 | movaps %xmm0,0x70(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1755 | ___ |
| 1756 | $code.=<<___; |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1757 | mov -8($key_),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1758 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1759 | lea ($key_),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1760 | .cfi_def_cfa_register %rsp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1761 | .Lctr32_epilogue: |
| 1762 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1763 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1764 | .size ${PREFIX}_ctr32_encrypt_blocks,.-${PREFIX}_ctr32_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1765 | ___ |
| 1766 | } |
| 1767 | |
| 1768 | ###################################################################### |
| 1769 | # void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, |
| 1770 | # const AES_KEY *key1, const AES_KEY *key2 |
| 1771 | # const unsigned char iv[16]); |
| 1772 | # |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 1773 | if (0) { # Omit these functions in BoringSSL |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1774 | my @tweak=map("%xmm$_",(10..15)); |
| 1775 | my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); |
| 1776 | my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); |
| 1777 | my $frame_size = 0x70 + ($win64?160:0); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1778 | my $key_ = "%rbp"; # override so that we can use %r11 as FP |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1779 | |
| 1780 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1781 | .globl ${PREFIX}_xts_encrypt |
| 1782 | .type ${PREFIX}_xts_encrypt,\@function,6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1783 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 1784 | ${PREFIX}_xts_encrypt: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1785 | .cfi_startproc |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1786 | lea (%rsp),%r11 # frame pointer |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1787 | .cfi_def_cfa_register %r11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1788 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1789 | .cfi_push %rbp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1790 | sub \$$frame_size,%rsp |
| 1791 | and \$-16,%rsp # Linux kernel stack can be incorrectly seeded |
| 1792 | ___ |
| 1793 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 1794 | movaps %xmm6,-0xa8(%r11) # offload everything |
| 1795 | movaps %xmm7,-0x98(%r11) |
| 1796 | movaps %xmm8,-0x88(%r11) |
| 1797 | movaps %xmm9,-0x78(%r11) |
| 1798 | movaps %xmm10,-0x68(%r11) |
| 1799 | movaps %xmm11,-0x58(%r11) |
| 1800 | movaps %xmm12,-0x48(%r11) |
| 1801 | movaps %xmm13,-0x38(%r11) |
| 1802 | movaps %xmm14,-0x28(%r11) |
| 1803 | movaps %xmm15,-0x18(%r11) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1804 | .Lxts_enc_body: |
| 1805 | ___ |
| 1806 | $code.=<<___; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1807 | movups ($ivp),$inout0 # load clear-text tweak |
| 1808 | mov 240(%r8),$rounds # key2->rounds |
| 1809 | mov 240($key),$rnds_ # key1->rounds |
| 1810 | ___ |
| 1811 | # generate the tweak |
| 1812 | &aesni_generate1("enc",$key2,$rounds,$inout0); |
| 1813 | $code.=<<___; |
| 1814 | $movkey ($key),$rndkey0 # zero round key |
| 1815 | mov $key,$key_ # backup $key |
| 1816 | mov $rnds_,$rounds # backup $rounds |
| 1817 | shl \$4,$rnds_ |
| 1818 | mov $len,$len_ # backup $len |
| 1819 | and \$-16,$len |
| 1820 | |
| 1821 | $movkey 16($key,$rnds_),$rndkey1 # last round key |
| 1822 | |
| 1823 | movdqa .Lxts_magic(%rip),$twmask |
| 1824 | movdqa $inout0,@tweak[5] |
| 1825 | pshufd \$0x5f,$inout0,$twres |
| 1826 | pxor $rndkey0,$rndkey1 |
| 1827 | ___ |
| 1828 | # alternative tweak calculation algorithm is based on suggestions |
| 1829 | # by Shay Gueron. psrad doesn't conflict with AES-NI instructions |
| 1830 | # and should help in the future... |
| 1831 | for ($i=0;$i<4;$i++) { |
| 1832 | $code.=<<___; |
| 1833 | movdqa $twres,$twtmp |
| 1834 | paddd $twres,$twres |
| 1835 | movdqa @tweak[5],@tweak[$i] |
| 1836 | psrad \$31,$twtmp # broadcast upper bits |
| 1837 | paddq @tweak[5],@tweak[5] |
| 1838 | pand $twmask,$twtmp |
| 1839 | pxor $rndkey0,@tweak[$i] |
| 1840 | pxor $twtmp,@tweak[5] |
| 1841 | ___ |
| 1842 | } |
| 1843 | $code.=<<___; |
| 1844 | movdqa @tweak[5],@tweak[4] |
| 1845 | psrad \$31,$twres |
| 1846 | paddq @tweak[5],@tweak[5] |
| 1847 | pand $twmask,$twres |
| 1848 | pxor $rndkey0,@tweak[4] |
| 1849 | pxor $twres,@tweak[5] |
| 1850 | movaps $rndkey1,0x60(%rsp) # save round[0]^round[last] |
| 1851 | |
| 1852 | sub \$16*6,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1853 | jc .Lxts_enc_short # if $len-=6*16 borrowed |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1854 | |
| 1855 | mov \$16+96,$rounds |
| 1856 | lea 32($key_,$rnds_),$key # end of key schedule |
| 1857 | sub %r10,%rax # twisted $rounds |
| 1858 | $movkey 16($key_),$rndkey1 |
| 1859 | mov %rax,%r10 # backup twisted $rounds |
| 1860 | lea .Lxts_magic(%rip),%r8 |
| 1861 | jmp .Lxts_enc_grandloop |
| 1862 | |
| 1863 | .align 32 |
| 1864 | .Lxts_enc_grandloop: |
| 1865 | movdqu `16*0`($inp),$inout0 # load input |
| 1866 | movdqa $rndkey0,$twmask |
| 1867 | movdqu `16*1`($inp),$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1868 | pxor @tweak[0],$inout0 # input^=tweak^round[0] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1869 | movdqu `16*2`($inp),$inout2 |
| 1870 | pxor @tweak[1],$inout1 |
| 1871 | aesenc $rndkey1,$inout0 |
| 1872 | movdqu `16*3`($inp),$inout3 |
| 1873 | pxor @tweak[2],$inout2 |
| 1874 | aesenc $rndkey1,$inout1 |
| 1875 | movdqu `16*4`($inp),$inout4 |
| 1876 | pxor @tweak[3],$inout3 |
| 1877 | aesenc $rndkey1,$inout2 |
| 1878 | movdqu `16*5`($inp),$inout5 |
| 1879 | pxor @tweak[5],$twmask # round[0]^=tweak[5] |
| 1880 | movdqa 0x60(%rsp),$twres # load round[0]^round[last] |
| 1881 | pxor @tweak[4],$inout4 |
| 1882 | aesenc $rndkey1,$inout3 |
| 1883 | $movkey 32($key_),$rndkey0 |
| 1884 | lea `16*6`($inp),$inp |
| 1885 | pxor $twmask,$inout5 |
| 1886 | |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 1887 | pxor $twres,@tweak[0] # calculate tweaks^round[last] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1888 | aesenc $rndkey1,$inout4 |
| 1889 | pxor $twres,@tweak[1] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1890 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks^round[last] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1891 | aesenc $rndkey1,$inout5 |
| 1892 | $movkey 48($key_),$rndkey1 |
| 1893 | pxor $twres,@tweak[2] |
| 1894 | |
| 1895 | aesenc $rndkey0,$inout0 |
| 1896 | pxor $twres,@tweak[3] |
| 1897 | movdqa @tweak[1],`16*1`(%rsp) |
| 1898 | aesenc $rndkey0,$inout1 |
| 1899 | pxor $twres,@tweak[4] |
| 1900 | movdqa @tweak[2],`16*2`(%rsp) |
| 1901 | aesenc $rndkey0,$inout2 |
| 1902 | aesenc $rndkey0,$inout3 |
| 1903 | pxor $twres,$twmask |
| 1904 | movdqa @tweak[4],`16*4`(%rsp) |
| 1905 | aesenc $rndkey0,$inout4 |
| 1906 | aesenc $rndkey0,$inout5 |
| 1907 | $movkey 64($key_),$rndkey0 |
| 1908 | movdqa $twmask,`16*5`(%rsp) |
| 1909 | pshufd \$0x5f,@tweak[5],$twres |
| 1910 | jmp .Lxts_enc_loop6 |
| 1911 | .align 32 |
| 1912 | .Lxts_enc_loop6: |
| 1913 | aesenc $rndkey1,$inout0 |
| 1914 | aesenc $rndkey1,$inout1 |
| 1915 | aesenc $rndkey1,$inout2 |
| 1916 | aesenc $rndkey1,$inout3 |
| 1917 | aesenc $rndkey1,$inout4 |
| 1918 | aesenc $rndkey1,$inout5 |
| 1919 | $movkey -64($key,%rax),$rndkey1 |
| 1920 | add \$32,%rax |
| 1921 | |
| 1922 | aesenc $rndkey0,$inout0 |
| 1923 | aesenc $rndkey0,$inout1 |
| 1924 | aesenc $rndkey0,$inout2 |
| 1925 | aesenc $rndkey0,$inout3 |
| 1926 | aesenc $rndkey0,$inout4 |
| 1927 | aesenc $rndkey0,$inout5 |
| 1928 | $movkey -80($key,%rax),$rndkey0 |
| 1929 | jnz .Lxts_enc_loop6 |
| 1930 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1931 | movdqa (%r8),$twmask # start calculating next tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1932 | movdqa $twres,$twtmp |
| 1933 | paddd $twres,$twres |
| 1934 | aesenc $rndkey1,$inout0 |
| 1935 | paddq @tweak[5],@tweak[5] |
| 1936 | psrad \$31,$twtmp |
| 1937 | aesenc $rndkey1,$inout1 |
| 1938 | pand $twmask,$twtmp |
| 1939 | $movkey ($key_),@tweak[0] # load round[0] |
| 1940 | aesenc $rndkey1,$inout2 |
| 1941 | aesenc $rndkey1,$inout3 |
| 1942 | aesenc $rndkey1,$inout4 |
| 1943 | pxor $twtmp,@tweak[5] |
| 1944 | movaps @tweak[0],@tweak[1] # copy round[0] |
| 1945 | aesenc $rndkey1,$inout5 |
| 1946 | $movkey -64($key),$rndkey1 |
| 1947 | |
| 1948 | movdqa $twres,$twtmp |
| 1949 | aesenc $rndkey0,$inout0 |
| 1950 | paddd $twres,$twres |
| 1951 | pxor @tweak[5],@tweak[0] |
| 1952 | aesenc $rndkey0,$inout1 |
| 1953 | psrad \$31,$twtmp |
| 1954 | paddq @tweak[5],@tweak[5] |
| 1955 | aesenc $rndkey0,$inout2 |
| 1956 | aesenc $rndkey0,$inout3 |
| 1957 | pand $twmask,$twtmp |
| 1958 | movaps @tweak[1],@tweak[2] |
| 1959 | aesenc $rndkey0,$inout4 |
| 1960 | pxor $twtmp,@tweak[5] |
| 1961 | movdqa $twres,$twtmp |
| 1962 | aesenc $rndkey0,$inout5 |
| 1963 | $movkey -48($key),$rndkey0 |
| 1964 | |
| 1965 | paddd $twres,$twres |
| 1966 | aesenc $rndkey1,$inout0 |
| 1967 | pxor @tweak[5],@tweak[1] |
| 1968 | psrad \$31,$twtmp |
| 1969 | aesenc $rndkey1,$inout1 |
| 1970 | paddq @tweak[5],@tweak[5] |
| 1971 | pand $twmask,$twtmp |
| 1972 | aesenc $rndkey1,$inout2 |
| 1973 | aesenc $rndkey1,$inout3 |
| 1974 | movdqa @tweak[3],`16*3`(%rsp) |
| 1975 | pxor $twtmp,@tweak[5] |
| 1976 | aesenc $rndkey1,$inout4 |
| 1977 | movaps @tweak[2],@tweak[3] |
| 1978 | movdqa $twres,$twtmp |
| 1979 | aesenc $rndkey1,$inout5 |
| 1980 | $movkey -32($key),$rndkey1 |
| 1981 | |
| 1982 | paddd $twres,$twres |
| 1983 | aesenc $rndkey0,$inout0 |
| 1984 | pxor @tweak[5],@tweak[2] |
| 1985 | psrad \$31,$twtmp |
| 1986 | aesenc $rndkey0,$inout1 |
| 1987 | paddq @tweak[5],@tweak[5] |
| 1988 | pand $twmask,$twtmp |
| 1989 | aesenc $rndkey0,$inout2 |
| 1990 | aesenc $rndkey0,$inout3 |
| 1991 | aesenc $rndkey0,$inout4 |
| 1992 | pxor $twtmp,@tweak[5] |
| 1993 | movaps @tweak[3],@tweak[4] |
| 1994 | aesenc $rndkey0,$inout5 |
| 1995 | |
| 1996 | movdqa $twres,$rndkey0 |
| 1997 | paddd $twres,$twres |
| 1998 | aesenc $rndkey1,$inout0 |
| 1999 | pxor @tweak[5],@tweak[3] |
| 2000 | psrad \$31,$rndkey0 |
| 2001 | aesenc $rndkey1,$inout1 |
| 2002 | paddq @tweak[5],@tweak[5] |
| 2003 | pand $twmask,$rndkey0 |
| 2004 | aesenc $rndkey1,$inout2 |
| 2005 | aesenc $rndkey1,$inout3 |
| 2006 | pxor $rndkey0,@tweak[5] |
| 2007 | $movkey ($key_),$rndkey0 |
| 2008 | aesenc $rndkey1,$inout4 |
| 2009 | aesenc $rndkey1,$inout5 |
| 2010 | $movkey 16($key_),$rndkey1 |
| 2011 | |
| 2012 | pxor @tweak[5],@tweak[4] |
| 2013 | aesenclast `16*0`(%rsp),$inout0 |
| 2014 | psrad \$31,$twres |
| 2015 | paddq @tweak[5],@tweak[5] |
| 2016 | aesenclast `16*1`(%rsp),$inout1 |
| 2017 | aesenclast `16*2`(%rsp),$inout2 |
| 2018 | pand $twmask,$twres |
| 2019 | mov %r10,%rax # restore $rounds |
| 2020 | aesenclast `16*3`(%rsp),$inout3 |
| 2021 | aesenclast `16*4`(%rsp),$inout4 |
| 2022 | aesenclast `16*5`(%rsp),$inout5 |
| 2023 | pxor $twres,@tweak[5] |
| 2024 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2025 | lea `16*6`($out),$out # $out+=6*16 |
| 2026 | movups $inout0,`-16*6`($out) # store 6 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2027 | movups $inout1,`-16*5`($out) |
| 2028 | movups $inout2,`-16*4`($out) |
| 2029 | movups $inout3,`-16*3`($out) |
| 2030 | movups $inout4,`-16*2`($out) |
| 2031 | movups $inout5,`-16*1`($out) |
| 2032 | sub \$16*6,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2033 | jnc .Lxts_enc_grandloop # loop if $len-=6*16 didn't borrow |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2034 | |
| 2035 | mov \$16+96,$rounds |
| 2036 | sub $rnds_,$rounds |
| 2037 | mov $key_,$key # restore $key |
| 2038 | shr \$4,$rounds # restore original value |
| 2039 | |
| 2040 | .Lxts_enc_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2041 | # at the point @tweak[0..5] are populated with tweak values |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2042 | mov $rounds,$rnds_ # backup $rounds |
| 2043 | pxor $rndkey0,@tweak[0] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2044 | add \$16*6,$len # restore real remaining $len |
| 2045 | jz .Lxts_enc_done # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2046 | |
| 2047 | pxor $rndkey0,@tweak[1] |
| 2048 | cmp \$0x20,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2049 | jb .Lxts_enc_one # $len is 1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2050 | pxor $rndkey0,@tweak[2] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2051 | je .Lxts_enc_two # $len is 2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2052 | |
| 2053 | pxor $rndkey0,@tweak[3] |
| 2054 | cmp \$0x40,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2055 | jb .Lxts_enc_three # $len is 3*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2056 | pxor $rndkey0,@tweak[4] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2057 | je .Lxts_enc_four # $len is 4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2058 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2059 | movdqu ($inp),$inout0 # $len is 5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2060 | movdqu 16*1($inp),$inout1 |
| 2061 | movdqu 16*2($inp),$inout2 |
| 2062 | pxor @tweak[0],$inout0 |
| 2063 | movdqu 16*3($inp),$inout3 |
| 2064 | pxor @tweak[1],$inout1 |
| 2065 | movdqu 16*4($inp),$inout4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2066 | lea 16*5($inp),$inp # $inp+=5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2067 | pxor @tweak[2],$inout2 |
| 2068 | pxor @tweak[3],$inout3 |
| 2069 | pxor @tweak[4],$inout4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2070 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2071 | |
| 2072 | call _aesni_encrypt6 |
| 2073 | |
| 2074 | xorps @tweak[0],$inout0 |
| 2075 | movdqa @tweak[5],@tweak[0] |
| 2076 | xorps @tweak[1],$inout1 |
| 2077 | xorps @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2078 | movdqu $inout0,($out) # store 5 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2079 | xorps @tweak[3],$inout3 |
| 2080 | movdqu $inout1,16*1($out) |
| 2081 | xorps @tweak[4],$inout4 |
| 2082 | movdqu $inout2,16*2($out) |
| 2083 | movdqu $inout3,16*3($out) |
| 2084 | movdqu $inout4,16*4($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2085 | lea 16*5($out),$out # $out+=5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2086 | jmp .Lxts_enc_done |
| 2087 | |
| 2088 | .align 16 |
| 2089 | .Lxts_enc_one: |
| 2090 | movups ($inp),$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2091 | lea 16*1($inp),$inp # inp+=1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2092 | xorps @tweak[0],$inout0 |
| 2093 | ___ |
| 2094 | &aesni_generate1("enc",$key,$rounds); |
| 2095 | $code.=<<___; |
| 2096 | xorps @tweak[0],$inout0 |
| 2097 | movdqa @tweak[1],@tweak[0] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2098 | movups $inout0,($out) # store one output block |
| 2099 | lea 16*1($out),$out # $out+=1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2100 | jmp .Lxts_enc_done |
| 2101 | |
| 2102 | .align 16 |
| 2103 | .Lxts_enc_two: |
| 2104 | movups ($inp),$inout0 |
| 2105 | movups 16($inp),$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2106 | lea 32($inp),$inp # $inp+=2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2107 | xorps @tweak[0],$inout0 |
| 2108 | xorps @tweak[1],$inout1 |
| 2109 | |
| 2110 | call _aesni_encrypt2 |
| 2111 | |
| 2112 | xorps @tweak[0],$inout0 |
| 2113 | movdqa @tweak[2],@tweak[0] |
| 2114 | xorps @tweak[1],$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2115 | movups $inout0,($out) # store 2 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2116 | movups $inout1,16*1($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2117 | lea 16*2($out),$out # $out+=2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2118 | jmp .Lxts_enc_done |
| 2119 | |
| 2120 | .align 16 |
| 2121 | .Lxts_enc_three: |
| 2122 | movups ($inp),$inout0 |
| 2123 | movups 16*1($inp),$inout1 |
| 2124 | movups 16*2($inp),$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2125 | lea 16*3($inp),$inp # $inp+=3*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2126 | xorps @tweak[0],$inout0 |
| 2127 | xorps @tweak[1],$inout1 |
| 2128 | xorps @tweak[2],$inout2 |
| 2129 | |
| 2130 | call _aesni_encrypt3 |
| 2131 | |
| 2132 | xorps @tweak[0],$inout0 |
| 2133 | movdqa @tweak[3],@tweak[0] |
| 2134 | xorps @tweak[1],$inout1 |
| 2135 | xorps @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2136 | movups $inout0,($out) # store 3 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2137 | movups $inout1,16*1($out) |
| 2138 | movups $inout2,16*2($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2139 | lea 16*3($out),$out # $out+=3*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2140 | jmp .Lxts_enc_done |
| 2141 | |
| 2142 | .align 16 |
| 2143 | .Lxts_enc_four: |
| 2144 | movups ($inp),$inout0 |
| 2145 | movups 16*1($inp),$inout1 |
| 2146 | movups 16*2($inp),$inout2 |
| 2147 | xorps @tweak[0],$inout0 |
| 2148 | movups 16*3($inp),$inout3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2149 | lea 16*4($inp),$inp # $inp+=4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2150 | xorps @tweak[1],$inout1 |
| 2151 | xorps @tweak[2],$inout2 |
| 2152 | xorps @tweak[3],$inout3 |
| 2153 | |
| 2154 | call _aesni_encrypt4 |
| 2155 | |
| 2156 | pxor @tweak[0],$inout0 |
| 2157 | movdqa @tweak[4],@tweak[0] |
| 2158 | pxor @tweak[1],$inout1 |
| 2159 | pxor @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2160 | movdqu $inout0,($out) # store 4 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2161 | pxor @tweak[3],$inout3 |
| 2162 | movdqu $inout1,16*1($out) |
| 2163 | movdqu $inout2,16*2($out) |
| 2164 | movdqu $inout3,16*3($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2165 | lea 16*4($out),$out # $out+=4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2166 | jmp .Lxts_enc_done |
| 2167 | |
| 2168 | .align 16 |
| 2169 | .Lxts_enc_done: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2170 | and \$15,$len_ # see if $len%16 is 0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2171 | jz .Lxts_enc_ret |
| 2172 | mov $len_,$len |
| 2173 | |
| 2174 | .Lxts_enc_steal: |
| 2175 | movzb ($inp),%eax # borrow $rounds ... |
| 2176 | movzb -16($out),%ecx # ... and $key |
| 2177 | lea 1($inp),$inp |
| 2178 | mov %al,-16($out) |
| 2179 | mov %cl,0($out) |
| 2180 | lea 1($out),$out |
| 2181 | sub \$1,$len |
| 2182 | jnz .Lxts_enc_steal |
| 2183 | |
| 2184 | sub $len_,$out # rewind $out |
| 2185 | mov $key_,$key # restore $key |
| 2186 | mov $rnds_,$rounds # restore $rounds |
| 2187 | |
| 2188 | movups -16($out),$inout0 |
| 2189 | xorps @tweak[0],$inout0 |
| 2190 | ___ |
| 2191 | &aesni_generate1("enc",$key,$rounds); |
| 2192 | $code.=<<___; |
| 2193 | xorps @tweak[0],$inout0 |
| 2194 | movups $inout0,-16($out) |
| 2195 | |
| 2196 | .Lxts_enc_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2197 | xorps %xmm0,%xmm0 # clear register bank |
| 2198 | pxor %xmm1,%xmm1 |
| 2199 | pxor %xmm2,%xmm2 |
| 2200 | pxor %xmm3,%xmm3 |
| 2201 | pxor %xmm4,%xmm4 |
| 2202 | pxor %xmm5,%xmm5 |
| 2203 | ___ |
| 2204 | $code.=<<___ if (!$win64); |
| 2205 | pxor %xmm6,%xmm6 |
| 2206 | pxor %xmm7,%xmm7 |
| 2207 | movaps %xmm0,0x00(%rsp) # clear stack |
| 2208 | pxor %xmm8,%xmm8 |
| 2209 | movaps %xmm0,0x10(%rsp) |
| 2210 | pxor %xmm9,%xmm9 |
| 2211 | movaps %xmm0,0x20(%rsp) |
| 2212 | pxor %xmm10,%xmm10 |
| 2213 | movaps %xmm0,0x30(%rsp) |
| 2214 | pxor %xmm11,%xmm11 |
| 2215 | movaps %xmm0,0x40(%rsp) |
| 2216 | pxor %xmm12,%xmm12 |
| 2217 | movaps %xmm0,0x50(%rsp) |
| 2218 | pxor %xmm13,%xmm13 |
| 2219 | movaps %xmm0,0x60(%rsp) |
| 2220 | pxor %xmm14,%xmm14 |
| 2221 | pxor %xmm15,%xmm15 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2222 | ___ |
| 2223 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2224 | movaps -0xa8(%r11),%xmm6 |
| 2225 | movaps %xmm0,-0xa8(%r11) # clear stack |
| 2226 | movaps -0x98(%r11),%xmm7 |
| 2227 | movaps %xmm0,-0x98(%r11) |
| 2228 | movaps -0x88(%r11),%xmm8 |
| 2229 | movaps %xmm0,-0x88(%r11) |
| 2230 | movaps -0x78(%r11),%xmm9 |
| 2231 | movaps %xmm0,-0x78(%r11) |
| 2232 | movaps -0x68(%r11),%xmm10 |
| 2233 | movaps %xmm0,-0x68(%r11) |
| 2234 | movaps -0x58(%r11),%xmm11 |
| 2235 | movaps %xmm0,-0x58(%r11) |
| 2236 | movaps -0x48(%r11),%xmm12 |
| 2237 | movaps %xmm0,-0x48(%r11) |
| 2238 | movaps -0x38(%r11),%xmm13 |
| 2239 | movaps %xmm0,-0x38(%r11) |
| 2240 | movaps -0x28(%r11),%xmm14 |
| 2241 | movaps %xmm0,-0x28(%r11) |
| 2242 | movaps -0x18(%r11),%xmm15 |
| 2243 | movaps %xmm0,-0x18(%r11) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2244 | movaps %xmm0,0x00(%rsp) |
| 2245 | movaps %xmm0,0x10(%rsp) |
| 2246 | movaps %xmm0,0x20(%rsp) |
| 2247 | movaps %xmm0,0x30(%rsp) |
| 2248 | movaps %xmm0,0x40(%rsp) |
| 2249 | movaps %xmm0,0x50(%rsp) |
| 2250 | movaps %xmm0,0x60(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2251 | ___ |
| 2252 | $code.=<<___; |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2253 | mov -8(%r11),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2254 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2255 | lea (%r11),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2256 | .cfi_def_cfa_register %rsp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2257 | .Lxts_enc_epilogue: |
| 2258 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2259 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2260 | .size ${PREFIX}_xts_encrypt,.-${PREFIX}_xts_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2261 | ___ |
| 2262 | |
| 2263 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2264 | .globl ${PREFIX}_xts_decrypt |
| 2265 | .type ${PREFIX}_xts_decrypt,\@function,6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2266 | .align 16 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2267 | ${PREFIX}_xts_decrypt: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2268 | .cfi_startproc |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2269 | lea (%rsp),%r11 # frame pointer |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2270 | .cfi_def_cfa_register %r11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2271 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2272 | .cfi_push %rbp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2273 | sub \$$frame_size,%rsp |
| 2274 | and \$-16,%rsp # Linux kernel stack can be incorrectly seeded |
| 2275 | ___ |
| 2276 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2277 | movaps %xmm6,-0xa8(%r11) # offload everything |
| 2278 | movaps %xmm7,-0x98(%r11) |
| 2279 | movaps %xmm8,-0x88(%r11) |
| 2280 | movaps %xmm9,-0x78(%r11) |
| 2281 | movaps %xmm10,-0x68(%r11) |
| 2282 | movaps %xmm11,-0x58(%r11) |
| 2283 | movaps %xmm12,-0x48(%r11) |
| 2284 | movaps %xmm13,-0x38(%r11) |
| 2285 | movaps %xmm14,-0x28(%r11) |
| 2286 | movaps %xmm15,-0x18(%r11) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2287 | .Lxts_dec_body: |
| 2288 | ___ |
| 2289 | $code.=<<___; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2290 | movups ($ivp),$inout0 # load clear-text tweak |
| 2291 | mov 240($key2),$rounds # key2->rounds |
| 2292 | mov 240($key),$rnds_ # key1->rounds |
| 2293 | ___ |
| 2294 | # generate the tweak |
| 2295 | &aesni_generate1("enc",$key2,$rounds,$inout0); |
| 2296 | $code.=<<___; |
| 2297 | xor %eax,%eax # if ($len%16) len-=16; |
| 2298 | test \$15,$len |
| 2299 | setnz %al |
| 2300 | shl \$4,%rax |
| 2301 | sub %rax,$len |
| 2302 | |
| 2303 | $movkey ($key),$rndkey0 # zero round key |
| 2304 | mov $key,$key_ # backup $key |
| 2305 | mov $rnds_,$rounds # backup $rounds |
| 2306 | shl \$4,$rnds_ |
| 2307 | mov $len,$len_ # backup $len |
| 2308 | and \$-16,$len |
| 2309 | |
| 2310 | $movkey 16($key,$rnds_),$rndkey1 # last round key |
| 2311 | |
| 2312 | movdqa .Lxts_magic(%rip),$twmask |
| 2313 | movdqa $inout0,@tweak[5] |
| 2314 | pshufd \$0x5f,$inout0,$twres |
| 2315 | pxor $rndkey0,$rndkey1 |
| 2316 | ___ |
| 2317 | for ($i=0;$i<4;$i++) { |
| 2318 | $code.=<<___; |
| 2319 | movdqa $twres,$twtmp |
| 2320 | paddd $twres,$twres |
| 2321 | movdqa @tweak[5],@tweak[$i] |
| 2322 | psrad \$31,$twtmp # broadcast upper bits |
| 2323 | paddq @tweak[5],@tweak[5] |
| 2324 | pand $twmask,$twtmp |
| 2325 | pxor $rndkey0,@tweak[$i] |
| 2326 | pxor $twtmp,@tweak[5] |
| 2327 | ___ |
| 2328 | } |
| 2329 | $code.=<<___; |
| 2330 | movdqa @tweak[5],@tweak[4] |
| 2331 | psrad \$31,$twres |
| 2332 | paddq @tweak[5],@tweak[5] |
| 2333 | pand $twmask,$twres |
| 2334 | pxor $rndkey0,@tweak[4] |
| 2335 | pxor $twres,@tweak[5] |
| 2336 | movaps $rndkey1,0x60(%rsp) # save round[0]^round[last] |
| 2337 | |
| 2338 | sub \$16*6,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2339 | jc .Lxts_dec_short # if $len-=6*16 borrowed |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2340 | |
| 2341 | mov \$16+96,$rounds |
| 2342 | lea 32($key_,$rnds_),$key # end of key schedule |
| 2343 | sub %r10,%rax # twisted $rounds |
| 2344 | $movkey 16($key_),$rndkey1 |
| 2345 | mov %rax,%r10 # backup twisted $rounds |
| 2346 | lea .Lxts_magic(%rip),%r8 |
| 2347 | jmp .Lxts_dec_grandloop |
| 2348 | |
| 2349 | .align 32 |
| 2350 | .Lxts_dec_grandloop: |
| 2351 | movdqu `16*0`($inp),$inout0 # load input |
| 2352 | movdqa $rndkey0,$twmask |
| 2353 | movdqu `16*1`($inp),$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2354 | pxor @tweak[0],$inout0 # intput^=tweak^round[0] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2355 | movdqu `16*2`($inp),$inout2 |
| 2356 | pxor @tweak[1],$inout1 |
| 2357 | aesdec $rndkey1,$inout0 |
| 2358 | movdqu `16*3`($inp),$inout3 |
| 2359 | pxor @tweak[2],$inout2 |
| 2360 | aesdec $rndkey1,$inout1 |
| 2361 | movdqu `16*4`($inp),$inout4 |
| 2362 | pxor @tweak[3],$inout3 |
| 2363 | aesdec $rndkey1,$inout2 |
| 2364 | movdqu `16*5`($inp),$inout5 |
| 2365 | pxor @tweak[5],$twmask # round[0]^=tweak[5] |
| 2366 | movdqa 0x60(%rsp),$twres # load round[0]^round[last] |
| 2367 | pxor @tweak[4],$inout4 |
| 2368 | aesdec $rndkey1,$inout3 |
| 2369 | $movkey 32($key_),$rndkey0 |
| 2370 | lea `16*6`($inp),$inp |
| 2371 | pxor $twmask,$inout5 |
| 2372 | |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2373 | pxor $twres,@tweak[0] # calculate tweaks^round[last] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2374 | aesdec $rndkey1,$inout4 |
| 2375 | pxor $twres,@tweak[1] |
| 2376 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks^last round key |
| 2377 | aesdec $rndkey1,$inout5 |
| 2378 | $movkey 48($key_),$rndkey1 |
| 2379 | pxor $twres,@tweak[2] |
| 2380 | |
| 2381 | aesdec $rndkey0,$inout0 |
| 2382 | pxor $twres,@tweak[3] |
| 2383 | movdqa @tweak[1],`16*1`(%rsp) |
| 2384 | aesdec $rndkey0,$inout1 |
| 2385 | pxor $twres,@tweak[4] |
| 2386 | movdqa @tweak[2],`16*2`(%rsp) |
| 2387 | aesdec $rndkey0,$inout2 |
| 2388 | aesdec $rndkey0,$inout3 |
| 2389 | pxor $twres,$twmask |
| 2390 | movdqa @tweak[4],`16*4`(%rsp) |
| 2391 | aesdec $rndkey0,$inout4 |
| 2392 | aesdec $rndkey0,$inout5 |
| 2393 | $movkey 64($key_),$rndkey0 |
| 2394 | movdqa $twmask,`16*5`(%rsp) |
| 2395 | pshufd \$0x5f,@tweak[5],$twres |
| 2396 | jmp .Lxts_dec_loop6 |
| 2397 | .align 32 |
| 2398 | .Lxts_dec_loop6: |
| 2399 | aesdec $rndkey1,$inout0 |
| 2400 | aesdec $rndkey1,$inout1 |
| 2401 | aesdec $rndkey1,$inout2 |
| 2402 | aesdec $rndkey1,$inout3 |
| 2403 | aesdec $rndkey1,$inout4 |
| 2404 | aesdec $rndkey1,$inout5 |
| 2405 | $movkey -64($key,%rax),$rndkey1 |
| 2406 | add \$32,%rax |
| 2407 | |
| 2408 | aesdec $rndkey0,$inout0 |
| 2409 | aesdec $rndkey0,$inout1 |
| 2410 | aesdec $rndkey0,$inout2 |
| 2411 | aesdec $rndkey0,$inout3 |
| 2412 | aesdec $rndkey0,$inout4 |
| 2413 | aesdec $rndkey0,$inout5 |
| 2414 | $movkey -80($key,%rax),$rndkey0 |
| 2415 | jnz .Lxts_dec_loop6 |
| 2416 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2417 | movdqa (%r8),$twmask # start calculating next tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2418 | movdqa $twres,$twtmp |
| 2419 | paddd $twres,$twres |
| 2420 | aesdec $rndkey1,$inout0 |
| 2421 | paddq @tweak[5],@tweak[5] |
| 2422 | psrad \$31,$twtmp |
| 2423 | aesdec $rndkey1,$inout1 |
| 2424 | pand $twmask,$twtmp |
| 2425 | $movkey ($key_),@tweak[0] # load round[0] |
| 2426 | aesdec $rndkey1,$inout2 |
| 2427 | aesdec $rndkey1,$inout3 |
| 2428 | aesdec $rndkey1,$inout4 |
| 2429 | pxor $twtmp,@tweak[5] |
| 2430 | movaps @tweak[0],@tweak[1] # copy round[0] |
| 2431 | aesdec $rndkey1,$inout5 |
| 2432 | $movkey -64($key),$rndkey1 |
| 2433 | |
| 2434 | movdqa $twres,$twtmp |
| 2435 | aesdec $rndkey0,$inout0 |
| 2436 | paddd $twres,$twres |
| 2437 | pxor @tweak[5],@tweak[0] |
| 2438 | aesdec $rndkey0,$inout1 |
| 2439 | psrad \$31,$twtmp |
| 2440 | paddq @tweak[5],@tweak[5] |
| 2441 | aesdec $rndkey0,$inout2 |
| 2442 | aesdec $rndkey0,$inout3 |
| 2443 | pand $twmask,$twtmp |
| 2444 | movaps @tweak[1],@tweak[2] |
| 2445 | aesdec $rndkey0,$inout4 |
| 2446 | pxor $twtmp,@tweak[5] |
| 2447 | movdqa $twres,$twtmp |
| 2448 | aesdec $rndkey0,$inout5 |
| 2449 | $movkey -48($key),$rndkey0 |
| 2450 | |
| 2451 | paddd $twres,$twres |
| 2452 | aesdec $rndkey1,$inout0 |
| 2453 | pxor @tweak[5],@tweak[1] |
| 2454 | psrad \$31,$twtmp |
| 2455 | aesdec $rndkey1,$inout1 |
| 2456 | paddq @tweak[5],@tweak[5] |
| 2457 | pand $twmask,$twtmp |
| 2458 | aesdec $rndkey1,$inout2 |
| 2459 | aesdec $rndkey1,$inout3 |
| 2460 | movdqa @tweak[3],`16*3`(%rsp) |
| 2461 | pxor $twtmp,@tweak[5] |
| 2462 | aesdec $rndkey1,$inout4 |
| 2463 | movaps @tweak[2],@tweak[3] |
| 2464 | movdqa $twres,$twtmp |
| 2465 | aesdec $rndkey1,$inout5 |
| 2466 | $movkey -32($key),$rndkey1 |
| 2467 | |
| 2468 | paddd $twres,$twres |
| 2469 | aesdec $rndkey0,$inout0 |
| 2470 | pxor @tweak[5],@tweak[2] |
| 2471 | psrad \$31,$twtmp |
| 2472 | aesdec $rndkey0,$inout1 |
| 2473 | paddq @tweak[5],@tweak[5] |
| 2474 | pand $twmask,$twtmp |
| 2475 | aesdec $rndkey0,$inout2 |
| 2476 | aesdec $rndkey0,$inout3 |
| 2477 | aesdec $rndkey0,$inout4 |
| 2478 | pxor $twtmp,@tweak[5] |
| 2479 | movaps @tweak[3],@tweak[4] |
| 2480 | aesdec $rndkey0,$inout5 |
| 2481 | |
| 2482 | movdqa $twres,$rndkey0 |
| 2483 | paddd $twres,$twres |
| 2484 | aesdec $rndkey1,$inout0 |
| 2485 | pxor @tweak[5],@tweak[3] |
| 2486 | psrad \$31,$rndkey0 |
| 2487 | aesdec $rndkey1,$inout1 |
| 2488 | paddq @tweak[5],@tweak[5] |
| 2489 | pand $twmask,$rndkey0 |
| 2490 | aesdec $rndkey1,$inout2 |
| 2491 | aesdec $rndkey1,$inout3 |
| 2492 | pxor $rndkey0,@tweak[5] |
| 2493 | $movkey ($key_),$rndkey0 |
| 2494 | aesdec $rndkey1,$inout4 |
| 2495 | aesdec $rndkey1,$inout5 |
| 2496 | $movkey 16($key_),$rndkey1 |
| 2497 | |
| 2498 | pxor @tweak[5],@tweak[4] |
| 2499 | aesdeclast `16*0`(%rsp),$inout0 |
| 2500 | psrad \$31,$twres |
| 2501 | paddq @tweak[5],@tweak[5] |
| 2502 | aesdeclast `16*1`(%rsp),$inout1 |
| 2503 | aesdeclast `16*2`(%rsp),$inout2 |
| 2504 | pand $twmask,$twres |
| 2505 | mov %r10,%rax # restore $rounds |
| 2506 | aesdeclast `16*3`(%rsp),$inout3 |
| 2507 | aesdeclast `16*4`(%rsp),$inout4 |
| 2508 | aesdeclast `16*5`(%rsp),$inout5 |
| 2509 | pxor $twres,@tweak[5] |
| 2510 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2511 | lea `16*6`($out),$out # $out+=6*16 |
| 2512 | movups $inout0,`-16*6`($out) # store 6 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2513 | movups $inout1,`-16*5`($out) |
| 2514 | movups $inout2,`-16*4`($out) |
| 2515 | movups $inout3,`-16*3`($out) |
| 2516 | movups $inout4,`-16*2`($out) |
| 2517 | movups $inout5,`-16*1`($out) |
| 2518 | sub \$16*6,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2519 | jnc .Lxts_dec_grandloop # loop if $len-=6*16 didn't borrow |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2520 | |
| 2521 | mov \$16+96,$rounds |
| 2522 | sub $rnds_,$rounds |
| 2523 | mov $key_,$key # restore $key |
| 2524 | shr \$4,$rounds # restore original value |
| 2525 | |
| 2526 | .Lxts_dec_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2527 | # at the point @tweak[0..5] are populated with tweak values |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2528 | mov $rounds,$rnds_ # backup $rounds |
| 2529 | pxor $rndkey0,@tweak[0] |
| 2530 | pxor $rndkey0,@tweak[1] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2531 | add \$16*6,$len # restore real remaining $len |
| 2532 | jz .Lxts_dec_done # done if ($len==0) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2533 | |
| 2534 | pxor $rndkey0,@tweak[2] |
| 2535 | cmp \$0x20,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2536 | jb .Lxts_dec_one # $len is 1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2537 | pxor $rndkey0,@tweak[3] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2538 | je .Lxts_dec_two # $len is 2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2539 | |
| 2540 | pxor $rndkey0,@tweak[4] |
| 2541 | cmp \$0x40,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2542 | jb .Lxts_dec_three # $len is 3*16 |
| 2543 | je .Lxts_dec_four # $len is 4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2544 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2545 | movdqu ($inp),$inout0 # $len is 5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2546 | movdqu 16*1($inp),$inout1 |
| 2547 | movdqu 16*2($inp),$inout2 |
| 2548 | pxor @tweak[0],$inout0 |
| 2549 | movdqu 16*3($inp),$inout3 |
| 2550 | pxor @tweak[1],$inout1 |
| 2551 | movdqu 16*4($inp),$inout4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2552 | lea 16*5($inp),$inp # $inp+=5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2553 | pxor @tweak[2],$inout2 |
| 2554 | pxor @tweak[3],$inout3 |
| 2555 | pxor @tweak[4],$inout4 |
| 2556 | |
| 2557 | call _aesni_decrypt6 |
| 2558 | |
| 2559 | xorps @tweak[0],$inout0 |
| 2560 | xorps @tweak[1],$inout1 |
| 2561 | xorps @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2562 | movdqu $inout0,($out) # store 5 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2563 | xorps @tweak[3],$inout3 |
| 2564 | movdqu $inout1,16*1($out) |
| 2565 | xorps @tweak[4],$inout4 |
| 2566 | movdqu $inout2,16*2($out) |
| 2567 | pxor $twtmp,$twtmp |
| 2568 | movdqu $inout3,16*3($out) |
| 2569 | pcmpgtd @tweak[5],$twtmp |
| 2570 | movdqu $inout4,16*4($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2571 | lea 16*5($out),$out # $out+=5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2572 | pshufd \$0x13,$twtmp,@tweak[1] # $twres |
| 2573 | and \$15,$len_ |
| 2574 | jz .Lxts_dec_ret |
| 2575 | |
| 2576 | movdqa @tweak[5],@tweak[0] |
| 2577 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 2578 | pand $twmask,@tweak[1] # isolate carry and residue |
| 2579 | pxor @tweak[5],@tweak[1] |
| 2580 | jmp .Lxts_dec_done2 |
| 2581 | |
| 2582 | .align 16 |
| 2583 | .Lxts_dec_one: |
| 2584 | movups ($inp),$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2585 | lea 16*1($inp),$inp # $inp+=1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2586 | xorps @tweak[0],$inout0 |
| 2587 | ___ |
| 2588 | &aesni_generate1("dec",$key,$rounds); |
| 2589 | $code.=<<___; |
| 2590 | xorps @tweak[0],$inout0 |
| 2591 | movdqa @tweak[1],@tweak[0] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2592 | movups $inout0,($out) # store one output block |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2593 | movdqa @tweak[2],@tweak[1] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2594 | lea 16*1($out),$out # $out+=1*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2595 | jmp .Lxts_dec_done |
| 2596 | |
| 2597 | .align 16 |
| 2598 | .Lxts_dec_two: |
| 2599 | movups ($inp),$inout0 |
| 2600 | movups 16($inp),$inout1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2601 | lea 32($inp),$inp # $inp+=2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2602 | xorps @tweak[0],$inout0 |
| 2603 | xorps @tweak[1],$inout1 |
| 2604 | |
| 2605 | call _aesni_decrypt2 |
| 2606 | |
| 2607 | xorps @tweak[0],$inout0 |
| 2608 | movdqa @tweak[2],@tweak[0] |
| 2609 | xorps @tweak[1],$inout1 |
| 2610 | movdqa @tweak[3],@tweak[1] |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2611 | movups $inout0,($out) # store 2 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2612 | movups $inout1,16*1($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2613 | lea 16*2($out),$out # $out+=2*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2614 | jmp .Lxts_dec_done |
| 2615 | |
| 2616 | .align 16 |
| 2617 | .Lxts_dec_three: |
| 2618 | movups ($inp),$inout0 |
| 2619 | movups 16*1($inp),$inout1 |
| 2620 | movups 16*2($inp),$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2621 | lea 16*3($inp),$inp # $inp+=3*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2622 | xorps @tweak[0],$inout0 |
| 2623 | xorps @tweak[1],$inout1 |
| 2624 | xorps @tweak[2],$inout2 |
| 2625 | |
| 2626 | call _aesni_decrypt3 |
| 2627 | |
| 2628 | xorps @tweak[0],$inout0 |
| 2629 | movdqa @tweak[3],@tweak[0] |
| 2630 | xorps @tweak[1],$inout1 |
| 2631 | movdqa @tweak[4],@tweak[1] |
| 2632 | xorps @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2633 | movups $inout0,($out) # store 3 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2634 | movups $inout1,16*1($out) |
| 2635 | movups $inout2,16*2($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2636 | lea 16*3($out),$out # $out+=3*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2637 | jmp .Lxts_dec_done |
| 2638 | |
| 2639 | .align 16 |
| 2640 | .Lxts_dec_four: |
| 2641 | movups ($inp),$inout0 |
| 2642 | movups 16*1($inp),$inout1 |
| 2643 | movups 16*2($inp),$inout2 |
| 2644 | xorps @tweak[0],$inout0 |
| 2645 | movups 16*3($inp),$inout3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2646 | lea 16*4($inp),$inp # $inp+=4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2647 | xorps @tweak[1],$inout1 |
| 2648 | xorps @tweak[2],$inout2 |
| 2649 | xorps @tweak[3],$inout3 |
| 2650 | |
| 2651 | call _aesni_decrypt4 |
| 2652 | |
| 2653 | pxor @tweak[0],$inout0 |
| 2654 | movdqa @tweak[4],@tweak[0] |
| 2655 | pxor @tweak[1],$inout1 |
| 2656 | movdqa @tweak[5],@tweak[1] |
| 2657 | pxor @tweak[2],$inout2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2658 | movdqu $inout0,($out) # store 4 output blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2659 | pxor @tweak[3],$inout3 |
| 2660 | movdqu $inout1,16*1($out) |
| 2661 | movdqu $inout2,16*2($out) |
| 2662 | movdqu $inout3,16*3($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2663 | lea 16*4($out),$out # $out+=4*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2664 | jmp .Lxts_dec_done |
| 2665 | |
| 2666 | .align 16 |
| 2667 | .Lxts_dec_done: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2668 | and \$15,$len_ # see if $len%16 is 0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2669 | jz .Lxts_dec_ret |
| 2670 | .Lxts_dec_done2: |
| 2671 | mov $len_,$len |
| 2672 | mov $key_,$key # restore $key |
| 2673 | mov $rnds_,$rounds # restore $rounds |
| 2674 | |
| 2675 | movups ($inp),$inout0 |
| 2676 | xorps @tweak[1],$inout0 |
| 2677 | ___ |
| 2678 | &aesni_generate1("dec",$key,$rounds); |
| 2679 | $code.=<<___; |
| 2680 | xorps @tweak[1],$inout0 |
| 2681 | movups $inout0,($out) |
| 2682 | |
| 2683 | .Lxts_dec_steal: |
| 2684 | movzb 16($inp),%eax # borrow $rounds ... |
| 2685 | movzb ($out),%ecx # ... and $key |
| 2686 | lea 1($inp),$inp |
| 2687 | mov %al,($out) |
| 2688 | mov %cl,16($out) |
| 2689 | lea 1($out),$out |
| 2690 | sub \$1,$len |
| 2691 | jnz .Lxts_dec_steal |
| 2692 | |
| 2693 | sub $len_,$out # rewind $out |
| 2694 | mov $key_,$key # restore $key |
| 2695 | mov $rnds_,$rounds # restore $rounds |
| 2696 | |
| 2697 | movups ($out),$inout0 |
| 2698 | xorps @tweak[0],$inout0 |
| 2699 | ___ |
| 2700 | &aesni_generate1("dec",$key,$rounds); |
| 2701 | $code.=<<___; |
| 2702 | xorps @tweak[0],$inout0 |
| 2703 | movups $inout0,($out) |
| 2704 | |
| 2705 | .Lxts_dec_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2706 | xorps %xmm0,%xmm0 # clear register bank |
| 2707 | pxor %xmm1,%xmm1 |
| 2708 | pxor %xmm2,%xmm2 |
| 2709 | pxor %xmm3,%xmm3 |
| 2710 | pxor %xmm4,%xmm4 |
| 2711 | pxor %xmm5,%xmm5 |
| 2712 | ___ |
| 2713 | $code.=<<___ if (!$win64); |
| 2714 | pxor %xmm6,%xmm6 |
| 2715 | pxor %xmm7,%xmm7 |
| 2716 | movaps %xmm0,0x00(%rsp) # clear stack |
| 2717 | pxor %xmm8,%xmm8 |
| 2718 | movaps %xmm0,0x10(%rsp) |
| 2719 | pxor %xmm9,%xmm9 |
| 2720 | movaps %xmm0,0x20(%rsp) |
| 2721 | pxor %xmm10,%xmm10 |
| 2722 | movaps %xmm0,0x30(%rsp) |
| 2723 | pxor %xmm11,%xmm11 |
| 2724 | movaps %xmm0,0x40(%rsp) |
| 2725 | pxor %xmm12,%xmm12 |
| 2726 | movaps %xmm0,0x50(%rsp) |
| 2727 | pxor %xmm13,%xmm13 |
| 2728 | movaps %xmm0,0x60(%rsp) |
| 2729 | pxor %xmm14,%xmm14 |
| 2730 | pxor %xmm15,%xmm15 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2731 | ___ |
| 2732 | $code.=<<___ if ($win64); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2733 | movaps -0xa8(%r11),%xmm6 |
| 2734 | movaps %xmm0,-0xa8(%r11) # clear stack |
| 2735 | movaps -0x98(%r11),%xmm7 |
| 2736 | movaps %xmm0,-0x98(%r11) |
| 2737 | movaps -0x88(%r11),%xmm8 |
| 2738 | movaps %xmm0,-0x88(%r11) |
| 2739 | movaps -0x78(%r11),%xmm9 |
| 2740 | movaps %xmm0,-0x78(%r11) |
| 2741 | movaps -0x68(%r11),%xmm10 |
| 2742 | movaps %xmm0,-0x68(%r11) |
| 2743 | movaps -0x58(%r11),%xmm11 |
| 2744 | movaps %xmm0,-0x58(%r11) |
| 2745 | movaps -0x48(%r11),%xmm12 |
| 2746 | movaps %xmm0,-0x48(%r11) |
| 2747 | movaps -0x38(%r11),%xmm13 |
| 2748 | movaps %xmm0,-0x38(%r11) |
| 2749 | movaps -0x28(%r11),%xmm14 |
| 2750 | movaps %xmm0,-0x28(%r11) |
| 2751 | movaps -0x18(%r11),%xmm15 |
| 2752 | movaps %xmm0,-0x18(%r11) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2753 | movaps %xmm0,0x00(%rsp) |
| 2754 | movaps %xmm0,0x10(%rsp) |
| 2755 | movaps %xmm0,0x20(%rsp) |
| 2756 | movaps %xmm0,0x30(%rsp) |
| 2757 | movaps %xmm0,0x40(%rsp) |
| 2758 | movaps %xmm0,0x50(%rsp) |
| 2759 | movaps %xmm0,0x60(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2760 | ___ |
| 2761 | $code.=<<___; |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2762 | mov -8(%r11),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2763 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2764 | lea (%r11),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2765 | .cfi_def_cfa_register %rsp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2766 | .Lxts_dec_epilogue: |
| 2767 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2768 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2769 | .size ${PREFIX}_xts_decrypt,.-${PREFIX}_xts_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2770 | ___ |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2771 | } |
| 2772 | |
| 2773 | ###################################################################### |
| 2774 | # void aesni_ocb_[en|de]crypt(const char *inp, char *out, size_t blocks, |
| 2775 | # const AES_KEY *key, unsigned int start_block_num, |
| 2776 | # unsigned char offset_i[16], const unsigned char L_[][16], |
| 2777 | # unsigned char checksum[16]); |
| 2778 | # |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 2779 | if (0) { # Omit these functions in BoringSSL |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2780 | my @offset=map("%xmm$_",(10..15)); |
| 2781 | my ($checksum,$rndkey0l)=("%xmm8","%xmm9"); |
| 2782 | my ($block_num,$offset_p)=("%r8","%r9"); # 5th and 6th arguments |
| 2783 | my ($L_p,$checksum_p) = ("%rbx","%rbp"); |
| 2784 | my ($i1,$i3,$i5) = ("%r12","%r13","%r14"); |
| 2785 | my $seventh_arg = $win64 ? 56 : 8; |
| 2786 | my $blocks = $len; |
| 2787 | |
| 2788 | $code.=<<___; |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2789 | .globl ${PREFIX}_ocb_encrypt |
| 2790 | .type ${PREFIX}_ocb_encrypt,\@function,6 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2791 | .align 32 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 2792 | ${PREFIX}_ocb_encrypt: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2793 | .cfi_startproc |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2794 | lea (%rsp),%rax |
| 2795 | push %rbx |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2796 | .cfi_push %rbx |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2797 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2798 | .cfi_push %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2799 | push %r12 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2800 | .cfi_push %r12 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2801 | push %r13 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2802 | .cfi_push %r13 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2803 | push %r14 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2804 | .cfi_push %r14 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 2805 | ___ |
| 2806 | $code.=<<___ if ($win64); |
| 2807 | lea -0xa0(%rsp),%rsp |
| 2808 | movaps %xmm6,0x00(%rsp) # offload everything |
| 2809 | movaps %xmm7,0x10(%rsp) |
| 2810 | movaps %xmm8,0x20(%rsp) |
| 2811 | movaps %xmm9,0x30(%rsp) |
| 2812 | movaps %xmm10,0x40(%rsp) |
| 2813 | movaps %xmm11,0x50(%rsp) |
| 2814 | movaps %xmm12,0x60(%rsp) |
| 2815 | movaps %xmm13,0x70(%rsp) |
| 2816 | movaps %xmm14,0x80(%rsp) |
| 2817 | movaps %xmm15,0x90(%rsp) |
| 2818 | .Locb_enc_body: |
| 2819 | ___ |
| 2820 | $code.=<<___; |
| 2821 | mov $seventh_arg(%rax),$L_p # 7th argument |
| 2822 | mov $seventh_arg+8(%rax),$checksum_p# 8th argument |
| 2823 | |
| 2824 | mov 240($key),$rnds_ |
| 2825 | mov $key,$key_ |
| 2826 | shl \$4,$rnds_ |
| 2827 | $movkey ($key),$rndkey0l # round[0] |
| 2828 | $movkey 16($key,$rnds_),$rndkey1 # round[last] |
| 2829 | |
| 2830 | movdqu ($offset_p),@offset[5] # load last offset_i |
| 2831 | pxor $rndkey1,$rndkey0l # round[0] ^ round[last] |
| 2832 | pxor $rndkey1,@offset[5] # offset_i ^ round[last] |
| 2833 | |
| 2834 | mov \$16+32,$rounds |
| 2835 | lea 32($key_,$rnds_),$key |
| 2836 | $movkey 16($key_),$rndkey1 # round[1] |
| 2837 | sub %r10,%rax # twisted $rounds |
| 2838 | mov %rax,%r10 # backup twisted $rounds |
| 2839 | |
| 2840 | movdqu ($L_p),@offset[0] # L_0 for all odd-numbered blocks |
| 2841 | movdqu ($checksum_p),$checksum # load checksum |
| 2842 | |
| 2843 | test \$1,$block_num # is first block number odd? |
| 2844 | jnz .Locb_enc_odd |
| 2845 | |
| 2846 | bsf $block_num,$i1 |
| 2847 | add \$1,$block_num |
| 2848 | shl \$4,$i1 |
| 2849 | movdqu ($L_p,$i1),$inout5 # borrow |
| 2850 | movdqu ($inp),$inout0 |
| 2851 | lea 16($inp),$inp |
| 2852 | |
| 2853 | call __ocb_encrypt1 |
| 2854 | |
| 2855 | movdqa $inout5,@offset[5] |
| 2856 | movups $inout0,($out) |
| 2857 | lea 16($out),$out |
| 2858 | sub \$1,$blocks |
| 2859 | jz .Locb_enc_done |
| 2860 | |
| 2861 | .Locb_enc_odd: |
| 2862 | lea 1($block_num),$i1 # even-numbered blocks |
| 2863 | lea 3($block_num),$i3 |
| 2864 | lea 5($block_num),$i5 |
| 2865 | lea 6($block_num),$block_num |
| 2866 | bsf $i1,$i1 # ntz(block) |
| 2867 | bsf $i3,$i3 |
| 2868 | bsf $i5,$i5 |
| 2869 | shl \$4,$i1 # ntz(block) -> table offset |
| 2870 | shl \$4,$i3 |
| 2871 | shl \$4,$i5 |
| 2872 | |
| 2873 | sub \$6,$blocks |
| 2874 | jc .Locb_enc_short |
| 2875 | jmp .Locb_enc_grandloop |
| 2876 | |
| 2877 | .align 32 |
| 2878 | .Locb_enc_grandloop: |
| 2879 | movdqu `16*0`($inp),$inout0 # load input |
| 2880 | movdqu `16*1`($inp),$inout1 |
| 2881 | movdqu `16*2`($inp),$inout2 |
| 2882 | movdqu `16*3`($inp),$inout3 |
| 2883 | movdqu `16*4`($inp),$inout4 |
| 2884 | movdqu `16*5`($inp),$inout5 |
| 2885 | lea `16*6`($inp),$inp |
| 2886 | |
| 2887 | call __ocb_encrypt6 |
| 2888 | |
| 2889 | movups $inout0,`16*0`($out) # store output |
| 2890 | movups $inout1,`16*1`($out) |
| 2891 | movups $inout2,`16*2`($out) |
| 2892 | movups $inout3,`16*3`($out) |
| 2893 | movups $inout4,`16*4`($out) |
| 2894 | movups $inout5,`16*5`($out) |
| 2895 | lea `16*6`($out),$out |
| 2896 | sub \$6,$blocks |
| 2897 | jnc .Locb_enc_grandloop |
| 2898 | |
| 2899 | .Locb_enc_short: |
| 2900 | add \$6,$blocks |
| 2901 | jz .Locb_enc_done |
| 2902 | |
| 2903 | movdqu `16*0`($inp),$inout0 |
| 2904 | cmp \$2,$blocks |
| 2905 | jb .Locb_enc_one |
| 2906 | movdqu `16*1`($inp),$inout1 |
| 2907 | je .Locb_enc_two |
| 2908 | |
| 2909 | movdqu `16*2`($inp),$inout2 |
| 2910 | cmp \$4,$blocks |
| 2911 | jb .Locb_enc_three |
| 2912 | movdqu `16*3`($inp),$inout3 |
| 2913 | je .Locb_enc_four |
| 2914 | |
| 2915 | movdqu `16*4`($inp),$inout4 |
| 2916 | pxor $inout5,$inout5 |
| 2917 | |
| 2918 | call __ocb_encrypt6 |
| 2919 | |
| 2920 | movdqa @offset[4],@offset[5] |
| 2921 | movups $inout0,`16*0`($out) |
| 2922 | movups $inout1,`16*1`($out) |
| 2923 | movups $inout2,`16*2`($out) |
| 2924 | movups $inout3,`16*3`($out) |
| 2925 | movups $inout4,`16*4`($out) |
| 2926 | |
| 2927 | jmp .Locb_enc_done |
| 2928 | |
| 2929 | .align 16 |
| 2930 | .Locb_enc_one: |
| 2931 | movdqa @offset[0],$inout5 # borrow |
| 2932 | |
| 2933 | call __ocb_encrypt1 |
| 2934 | |
| 2935 | movdqa $inout5,@offset[5] |
| 2936 | movups $inout0,`16*0`($out) |
| 2937 | jmp .Locb_enc_done |
| 2938 | |
| 2939 | .align 16 |
| 2940 | .Locb_enc_two: |
| 2941 | pxor $inout2,$inout2 |
| 2942 | pxor $inout3,$inout3 |
| 2943 | |
| 2944 | call __ocb_encrypt4 |
| 2945 | |
| 2946 | movdqa @offset[1],@offset[5] |
| 2947 | movups $inout0,`16*0`($out) |
| 2948 | movups $inout1,`16*1`($out) |
| 2949 | |
| 2950 | jmp .Locb_enc_done |
| 2951 | |
| 2952 | .align 16 |
| 2953 | .Locb_enc_three: |
| 2954 | pxor $inout3,$inout3 |
| 2955 | |
| 2956 | call __ocb_encrypt4 |
| 2957 | |
| 2958 | movdqa @offset[2],@offset[5] |
| 2959 | movups $inout0,`16*0`($out) |
| 2960 | movups $inout1,`16*1`($out) |
| 2961 | movups $inout2,`16*2`($out) |
| 2962 | |
| 2963 | jmp .Locb_enc_done |
| 2964 | |
| 2965 | .align 16 |
| 2966 | .Locb_enc_four: |
| 2967 | call __ocb_encrypt4 |
| 2968 | |
| 2969 | movdqa @offset[3],@offset[5] |
| 2970 | movups $inout0,`16*0`($out) |
| 2971 | movups $inout1,`16*1`($out) |
| 2972 | movups $inout2,`16*2`($out) |
| 2973 | movups $inout3,`16*3`($out) |
| 2974 | |
| 2975 | .Locb_enc_done: |
| 2976 | pxor $rndkey0,@offset[5] # "remove" round[last] |
| 2977 | movdqu $checksum,($checksum_p) # store checksum |
| 2978 | movdqu @offset[5],($offset_p) # store last offset_i |
| 2979 | |
| 2980 | xorps %xmm0,%xmm0 # clear register bank |
| 2981 | pxor %xmm1,%xmm1 |
| 2982 | pxor %xmm2,%xmm2 |
| 2983 | pxor %xmm3,%xmm3 |
| 2984 | pxor %xmm4,%xmm4 |
| 2985 | pxor %xmm5,%xmm5 |
| 2986 | ___ |
| 2987 | $code.=<<___ if (!$win64); |
| 2988 | pxor %xmm6,%xmm6 |
| 2989 | pxor %xmm7,%xmm7 |
| 2990 | pxor %xmm8,%xmm8 |
| 2991 | pxor %xmm9,%xmm9 |
| 2992 | pxor %xmm10,%xmm10 |
| 2993 | pxor %xmm11,%xmm11 |
| 2994 | pxor %xmm12,%xmm12 |
| 2995 | pxor %xmm13,%xmm13 |
| 2996 | pxor %xmm14,%xmm14 |
| 2997 | pxor %xmm15,%xmm15 |
| 2998 | lea 0x28(%rsp),%rax |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 2999 | .cfi_def_cfa %rax,8 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3000 | ___ |
| 3001 | $code.=<<___ if ($win64); |
| 3002 | movaps 0x00(%rsp),%xmm6 |
| 3003 | movaps %xmm0,0x00(%rsp) # clear stack |
| 3004 | movaps 0x10(%rsp),%xmm7 |
| 3005 | movaps %xmm0,0x10(%rsp) |
| 3006 | movaps 0x20(%rsp),%xmm8 |
| 3007 | movaps %xmm0,0x20(%rsp) |
| 3008 | movaps 0x30(%rsp),%xmm9 |
| 3009 | movaps %xmm0,0x30(%rsp) |
| 3010 | movaps 0x40(%rsp),%xmm10 |
| 3011 | movaps %xmm0,0x40(%rsp) |
| 3012 | movaps 0x50(%rsp),%xmm11 |
| 3013 | movaps %xmm0,0x50(%rsp) |
| 3014 | movaps 0x60(%rsp),%xmm12 |
| 3015 | movaps %xmm0,0x60(%rsp) |
| 3016 | movaps 0x70(%rsp),%xmm13 |
| 3017 | movaps %xmm0,0x70(%rsp) |
| 3018 | movaps 0x80(%rsp),%xmm14 |
| 3019 | movaps %xmm0,0x80(%rsp) |
| 3020 | movaps 0x90(%rsp),%xmm15 |
| 3021 | movaps %xmm0,0x90(%rsp) |
| 3022 | lea 0xa0+0x28(%rsp),%rax |
| 3023 | .Locb_enc_pop: |
| 3024 | ___ |
| 3025 | $code.=<<___; |
| 3026 | mov -40(%rax),%r14 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3027 | .cfi_restore %r14 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3028 | mov -32(%rax),%r13 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3029 | .cfi_restore %r13 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3030 | mov -24(%rax),%r12 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3031 | .cfi_restore %r12 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3032 | mov -16(%rax),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3033 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3034 | mov -8(%rax),%rbx |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3035 | .cfi_restore %rbx |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3036 | lea (%rax),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3037 | .cfi_def_cfa_register %rsp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3038 | .Locb_enc_epilogue: |
| 3039 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3040 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 3041 | .size ${PREFIX}_ocb_encrypt,.-${PREFIX}_ocb_encrypt |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3042 | |
| 3043 | .type __ocb_encrypt6,\@abi-omnipotent |
| 3044 | .align 32 |
| 3045 | __ocb_encrypt6: |
| 3046 | pxor $rndkey0l,@offset[5] # offset_i ^ round[0] |
| 3047 | movdqu ($L_p,$i1),@offset[1] |
| 3048 | movdqa @offset[0],@offset[2] |
| 3049 | movdqu ($L_p,$i3),@offset[3] |
| 3050 | movdqa @offset[0],@offset[4] |
| 3051 | pxor @offset[5],@offset[0] |
| 3052 | movdqu ($L_p,$i5),@offset[5] |
| 3053 | pxor @offset[0],@offset[1] |
| 3054 | pxor $inout0,$checksum # accumulate checksum |
| 3055 | pxor @offset[0],$inout0 # input ^ round[0] ^ offset_i |
| 3056 | pxor @offset[1],@offset[2] |
| 3057 | pxor $inout1,$checksum |
| 3058 | pxor @offset[1],$inout1 |
| 3059 | pxor @offset[2],@offset[3] |
| 3060 | pxor $inout2,$checksum |
| 3061 | pxor @offset[2],$inout2 |
| 3062 | pxor @offset[3],@offset[4] |
| 3063 | pxor $inout3,$checksum |
| 3064 | pxor @offset[3],$inout3 |
| 3065 | pxor @offset[4],@offset[5] |
| 3066 | pxor $inout4,$checksum |
| 3067 | pxor @offset[4],$inout4 |
| 3068 | pxor $inout5,$checksum |
| 3069 | pxor @offset[5],$inout5 |
| 3070 | $movkey 32($key_),$rndkey0 |
| 3071 | |
| 3072 | lea 1($block_num),$i1 # even-numbered blocks |
| 3073 | lea 3($block_num),$i3 |
| 3074 | lea 5($block_num),$i5 |
| 3075 | add \$6,$block_num |
| 3076 | pxor $rndkey0l,@offset[0] # offset_i ^ round[last] |
| 3077 | bsf $i1,$i1 # ntz(block) |
| 3078 | bsf $i3,$i3 |
| 3079 | bsf $i5,$i5 |
| 3080 | |
| 3081 | aesenc $rndkey1,$inout0 |
| 3082 | aesenc $rndkey1,$inout1 |
| 3083 | aesenc $rndkey1,$inout2 |
| 3084 | aesenc $rndkey1,$inout3 |
| 3085 | pxor $rndkey0l,@offset[1] |
| 3086 | pxor $rndkey0l,@offset[2] |
| 3087 | aesenc $rndkey1,$inout4 |
| 3088 | pxor $rndkey0l,@offset[3] |
| 3089 | pxor $rndkey0l,@offset[4] |
| 3090 | aesenc $rndkey1,$inout5 |
| 3091 | $movkey 48($key_),$rndkey1 |
| 3092 | pxor $rndkey0l,@offset[5] |
| 3093 | |
| 3094 | aesenc $rndkey0,$inout0 |
| 3095 | aesenc $rndkey0,$inout1 |
| 3096 | aesenc $rndkey0,$inout2 |
| 3097 | aesenc $rndkey0,$inout3 |
| 3098 | aesenc $rndkey0,$inout4 |
| 3099 | aesenc $rndkey0,$inout5 |
| 3100 | $movkey 64($key_),$rndkey0 |
| 3101 | shl \$4,$i1 # ntz(block) -> table offset |
| 3102 | shl \$4,$i3 |
| 3103 | jmp .Locb_enc_loop6 |
| 3104 | |
| 3105 | .align 32 |
| 3106 | .Locb_enc_loop6: |
| 3107 | aesenc $rndkey1,$inout0 |
| 3108 | aesenc $rndkey1,$inout1 |
| 3109 | aesenc $rndkey1,$inout2 |
| 3110 | aesenc $rndkey1,$inout3 |
| 3111 | aesenc $rndkey1,$inout4 |
| 3112 | aesenc $rndkey1,$inout5 |
| 3113 | $movkey ($key,%rax),$rndkey1 |
| 3114 | add \$32,%rax |
| 3115 | |
| 3116 | aesenc $rndkey0,$inout0 |
| 3117 | aesenc $rndkey0,$inout1 |
| 3118 | aesenc $rndkey0,$inout2 |
| 3119 | aesenc $rndkey0,$inout3 |
| 3120 | aesenc $rndkey0,$inout4 |
| 3121 | aesenc $rndkey0,$inout5 |
| 3122 | $movkey -16($key,%rax),$rndkey0 |
| 3123 | jnz .Locb_enc_loop6 |
| 3124 | |
| 3125 | aesenc $rndkey1,$inout0 |
| 3126 | aesenc $rndkey1,$inout1 |
| 3127 | aesenc $rndkey1,$inout2 |
| 3128 | aesenc $rndkey1,$inout3 |
| 3129 | aesenc $rndkey1,$inout4 |
| 3130 | aesenc $rndkey1,$inout5 |
| 3131 | $movkey 16($key_),$rndkey1 |
| 3132 | shl \$4,$i5 |
| 3133 | |
| 3134 | aesenclast @offset[0],$inout0 |
| 3135 | movdqu ($L_p),@offset[0] # L_0 for all odd-numbered blocks |
| 3136 | mov %r10,%rax # restore twisted rounds |
| 3137 | aesenclast @offset[1],$inout1 |
| 3138 | aesenclast @offset[2],$inout2 |
| 3139 | aesenclast @offset[3],$inout3 |
| 3140 | aesenclast @offset[4],$inout4 |
| 3141 | aesenclast @offset[5],$inout5 |
| 3142 | ret |
| 3143 | .size __ocb_encrypt6,.-__ocb_encrypt6 |
| 3144 | |
| 3145 | .type __ocb_encrypt4,\@abi-omnipotent |
| 3146 | .align 32 |
| 3147 | __ocb_encrypt4: |
| 3148 | pxor $rndkey0l,@offset[5] # offset_i ^ round[0] |
| 3149 | movdqu ($L_p,$i1),@offset[1] |
| 3150 | movdqa @offset[0],@offset[2] |
| 3151 | movdqu ($L_p,$i3),@offset[3] |
| 3152 | pxor @offset[5],@offset[0] |
| 3153 | pxor @offset[0],@offset[1] |
| 3154 | pxor $inout0,$checksum # accumulate checksum |
| 3155 | pxor @offset[0],$inout0 # input ^ round[0] ^ offset_i |
| 3156 | pxor @offset[1],@offset[2] |
| 3157 | pxor $inout1,$checksum |
| 3158 | pxor @offset[1],$inout1 |
| 3159 | pxor @offset[2],@offset[3] |
| 3160 | pxor $inout2,$checksum |
| 3161 | pxor @offset[2],$inout2 |
| 3162 | pxor $inout3,$checksum |
| 3163 | pxor @offset[3],$inout3 |
| 3164 | $movkey 32($key_),$rndkey0 |
| 3165 | |
| 3166 | pxor $rndkey0l,@offset[0] # offset_i ^ round[last] |
| 3167 | pxor $rndkey0l,@offset[1] |
| 3168 | pxor $rndkey0l,@offset[2] |
| 3169 | pxor $rndkey0l,@offset[3] |
| 3170 | |
| 3171 | aesenc $rndkey1,$inout0 |
| 3172 | aesenc $rndkey1,$inout1 |
| 3173 | aesenc $rndkey1,$inout2 |
| 3174 | aesenc $rndkey1,$inout3 |
| 3175 | $movkey 48($key_),$rndkey1 |
| 3176 | |
| 3177 | aesenc $rndkey0,$inout0 |
| 3178 | aesenc $rndkey0,$inout1 |
| 3179 | aesenc $rndkey0,$inout2 |
| 3180 | aesenc $rndkey0,$inout3 |
| 3181 | $movkey 64($key_),$rndkey0 |
| 3182 | jmp .Locb_enc_loop4 |
| 3183 | |
| 3184 | .align 32 |
| 3185 | .Locb_enc_loop4: |
| 3186 | aesenc $rndkey1,$inout0 |
| 3187 | aesenc $rndkey1,$inout1 |
| 3188 | aesenc $rndkey1,$inout2 |
| 3189 | aesenc $rndkey1,$inout3 |
| 3190 | $movkey ($key,%rax),$rndkey1 |
| 3191 | add \$32,%rax |
| 3192 | |
| 3193 | aesenc $rndkey0,$inout0 |
| 3194 | aesenc $rndkey0,$inout1 |
| 3195 | aesenc $rndkey0,$inout2 |
| 3196 | aesenc $rndkey0,$inout3 |
| 3197 | $movkey -16($key,%rax),$rndkey0 |
| 3198 | jnz .Locb_enc_loop4 |
| 3199 | |
| 3200 | aesenc $rndkey1,$inout0 |
| 3201 | aesenc $rndkey1,$inout1 |
| 3202 | aesenc $rndkey1,$inout2 |
| 3203 | aesenc $rndkey1,$inout3 |
| 3204 | $movkey 16($key_),$rndkey1 |
| 3205 | mov %r10,%rax # restore twisted rounds |
| 3206 | |
| 3207 | aesenclast @offset[0],$inout0 |
| 3208 | aesenclast @offset[1],$inout1 |
| 3209 | aesenclast @offset[2],$inout2 |
| 3210 | aesenclast @offset[3],$inout3 |
| 3211 | ret |
| 3212 | .size __ocb_encrypt4,.-__ocb_encrypt4 |
| 3213 | |
| 3214 | .type __ocb_encrypt1,\@abi-omnipotent |
| 3215 | .align 32 |
| 3216 | __ocb_encrypt1: |
| 3217 | pxor @offset[5],$inout5 # offset_i |
| 3218 | pxor $rndkey0l,$inout5 # offset_i ^ round[0] |
| 3219 | pxor $inout0,$checksum # accumulate checksum |
| 3220 | pxor $inout5,$inout0 # input ^ round[0] ^ offset_i |
| 3221 | $movkey 32($key_),$rndkey0 |
| 3222 | |
| 3223 | aesenc $rndkey1,$inout0 |
| 3224 | $movkey 48($key_),$rndkey1 |
| 3225 | pxor $rndkey0l,$inout5 # offset_i ^ round[last] |
| 3226 | |
| 3227 | aesenc $rndkey0,$inout0 |
| 3228 | $movkey 64($key_),$rndkey0 |
| 3229 | jmp .Locb_enc_loop1 |
| 3230 | |
| 3231 | .align 32 |
| 3232 | .Locb_enc_loop1: |
| 3233 | aesenc $rndkey1,$inout0 |
| 3234 | $movkey ($key,%rax),$rndkey1 |
| 3235 | add \$32,%rax |
| 3236 | |
| 3237 | aesenc $rndkey0,$inout0 |
| 3238 | $movkey -16($key,%rax),$rndkey0 |
| 3239 | jnz .Locb_enc_loop1 |
| 3240 | |
| 3241 | aesenc $rndkey1,$inout0 |
| 3242 | $movkey 16($key_),$rndkey1 # redundant in tail |
| 3243 | mov %r10,%rax # restore twisted rounds |
| 3244 | |
| 3245 | aesenclast $inout5,$inout0 |
| 3246 | ret |
| 3247 | .size __ocb_encrypt1,.-__ocb_encrypt1 |
| 3248 | |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 3249 | .globl ${PREFIX}_ocb_decrypt |
| 3250 | .type ${PREFIX}_ocb_decrypt,\@function,6 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3251 | .align 32 |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 3252 | ${PREFIX}_ocb_decrypt: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3253 | .cfi_startproc |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3254 | lea (%rsp),%rax |
| 3255 | push %rbx |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3256 | .cfi_push %rbx |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3257 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3258 | .cfi_push %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3259 | push %r12 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3260 | .cfi_push %r12 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3261 | push %r13 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3262 | .cfi_push %r13 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3263 | push %r14 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3264 | .cfi_push %r14 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3265 | ___ |
| 3266 | $code.=<<___ if ($win64); |
| 3267 | lea -0xa0(%rsp),%rsp |
| 3268 | movaps %xmm6,0x00(%rsp) # offload everything |
| 3269 | movaps %xmm7,0x10(%rsp) |
| 3270 | movaps %xmm8,0x20(%rsp) |
| 3271 | movaps %xmm9,0x30(%rsp) |
| 3272 | movaps %xmm10,0x40(%rsp) |
| 3273 | movaps %xmm11,0x50(%rsp) |
| 3274 | movaps %xmm12,0x60(%rsp) |
| 3275 | movaps %xmm13,0x70(%rsp) |
| 3276 | movaps %xmm14,0x80(%rsp) |
| 3277 | movaps %xmm15,0x90(%rsp) |
| 3278 | .Locb_dec_body: |
| 3279 | ___ |
| 3280 | $code.=<<___; |
| 3281 | mov $seventh_arg(%rax),$L_p # 7th argument |
| 3282 | mov $seventh_arg+8(%rax),$checksum_p# 8th argument |
| 3283 | |
| 3284 | mov 240($key),$rnds_ |
| 3285 | mov $key,$key_ |
| 3286 | shl \$4,$rnds_ |
| 3287 | $movkey ($key),$rndkey0l # round[0] |
| 3288 | $movkey 16($key,$rnds_),$rndkey1 # round[last] |
| 3289 | |
| 3290 | movdqu ($offset_p),@offset[5] # load last offset_i |
| 3291 | pxor $rndkey1,$rndkey0l # round[0] ^ round[last] |
| 3292 | pxor $rndkey1,@offset[5] # offset_i ^ round[last] |
| 3293 | |
| 3294 | mov \$16+32,$rounds |
| 3295 | lea 32($key_,$rnds_),$key |
| 3296 | $movkey 16($key_),$rndkey1 # round[1] |
| 3297 | sub %r10,%rax # twisted $rounds |
| 3298 | mov %rax,%r10 # backup twisted $rounds |
| 3299 | |
| 3300 | movdqu ($L_p),@offset[0] # L_0 for all odd-numbered blocks |
| 3301 | movdqu ($checksum_p),$checksum # load checksum |
| 3302 | |
| 3303 | test \$1,$block_num # is first block number odd? |
| 3304 | jnz .Locb_dec_odd |
| 3305 | |
| 3306 | bsf $block_num,$i1 |
| 3307 | add \$1,$block_num |
| 3308 | shl \$4,$i1 |
| 3309 | movdqu ($L_p,$i1),$inout5 # borrow |
| 3310 | movdqu ($inp),$inout0 |
| 3311 | lea 16($inp),$inp |
| 3312 | |
| 3313 | call __ocb_decrypt1 |
| 3314 | |
| 3315 | movdqa $inout5,@offset[5] |
| 3316 | movups $inout0,($out) |
| 3317 | xorps $inout0,$checksum # accumulate checksum |
| 3318 | lea 16($out),$out |
| 3319 | sub \$1,$blocks |
| 3320 | jz .Locb_dec_done |
| 3321 | |
| 3322 | .Locb_dec_odd: |
| 3323 | lea 1($block_num),$i1 # even-numbered blocks |
| 3324 | lea 3($block_num),$i3 |
| 3325 | lea 5($block_num),$i5 |
| 3326 | lea 6($block_num),$block_num |
| 3327 | bsf $i1,$i1 # ntz(block) |
| 3328 | bsf $i3,$i3 |
| 3329 | bsf $i5,$i5 |
| 3330 | shl \$4,$i1 # ntz(block) -> table offset |
| 3331 | shl \$4,$i3 |
| 3332 | shl \$4,$i5 |
| 3333 | |
| 3334 | sub \$6,$blocks |
| 3335 | jc .Locb_dec_short |
| 3336 | jmp .Locb_dec_grandloop |
| 3337 | |
| 3338 | .align 32 |
| 3339 | .Locb_dec_grandloop: |
| 3340 | movdqu `16*0`($inp),$inout0 # load input |
| 3341 | movdqu `16*1`($inp),$inout1 |
| 3342 | movdqu `16*2`($inp),$inout2 |
| 3343 | movdqu `16*3`($inp),$inout3 |
| 3344 | movdqu `16*4`($inp),$inout4 |
| 3345 | movdqu `16*5`($inp),$inout5 |
| 3346 | lea `16*6`($inp),$inp |
| 3347 | |
| 3348 | call __ocb_decrypt6 |
| 3349 | |
| 3350 | movups $inout0,`16*0`($out) # store output |
| 3351 | pxor $inout0,$checksum # accumulate checksum |
| 3352 | movups $inout1,`16*1`($out) |
| 3353 | pxor $inout1,$checksum |
| 3354 | movups $inout2,`16*2`($out) |
| 3355 | pxor $inout2,$checksum |
| 3356 | movups $inout3,`16*3`($out) |
| 3357 | pxor $inout3,$checksum |
| 3358 | movups $inout4,`16*4`($out) |
| 3359 | pxor $inout4,$checksum |
| 3360 | movups $inout5,`16*5`($out) |
| 3361 | pxor $inout5,$checksum |
| 3362 | lea `16*6`($out),$out |
| 3363 | sub \$6,$blocks |
| 3364 | jnc .Locb_dec_grandloop |
| 3365 | |
| 3366 | .Locb_dec_short: |
| 3367 | add \$6,$blocks |
| 3368 | jz .Locb_dec_done |
| 3369 | |
| 3370 | movdqu `16*0`($inp),$inout0 |
| 3371 | cmp \$2,$blocks |
| 3372 | jb .Locb_dec_one |
| 3373 | movdqu `16*1`($inp),$inout1 |
| 3374 | je .Locb_dec_two |
| 3375 | |
| 3376 | movdqu `16*2`($inp),$inout2 |
| 3377 | cmp \$4,$blocks |
| 3378 | jb .Locb_dec_three |
| 3379 | movdqu `16*3`($inp),$inout3 |
| 3380 | je .Locb_dec_four |
| 3381 | |
| 3382 | movdqu `16*4`($inp),$inout4 |
| 3383 | pxor $inout5,$inout5 |
| 3384 | |
| 3385 | call __ocb_decrypt6 |
| 3386 | |
| 3387 | movdqa @offset[4],@offset[5] |
| 3388 | movups $inout0,`16*0`($out) # store output |
| 3389 | pxor $inout0,$checksum # accumulate checksum |
| 3390 | movups $inout1,`16*1`($out) |
| 3391 | pxor $inout1,$checksum |
| 3392 | movups $inout2,`16*2`($out) |
| 3393 | pxor $inout2,$checksum |
| 3394 | movups $inout3,`16*3`($out) |
| 3395 | pxor $inout3,$checksum |
| 3396 | movups $inout4,`16*4`($out) |
| 3397 | pxor $inout4,$checksum |
| 3398 | |
| 3399 | jmp .Locb_dec_done |
| 3400 | |
| 3401 | .align 16 |
| 3402 | .Locb_dec_one: |
| 3403 | movdqa @offset[0],$inout5 # borrow |
| 3404 | |
| 3405 | call __ocb_decrypt1 |
| 3406 | |
| 3407 | movdqa $inout5,@offset[5] |
| 3408 | movups $inout0,`16*0`($out) # store output |
| 3409 | xorps $inout0,$checksum # accumulate checksum |
| 3410 | jmp .Locb_dec_done |
| 3411 | |
| 3412 | .align 16 |
| 3413 | .Locb_dec_two: |
| 3414 | pxor $inout2,$inout2 |
| 3415 | pxor $inout3,$inout3 |
| 3416 | |
| 3417 | call __ocb_decrypt4 |
| 3418 | |
| 3419 | movdqa @offset[1],@offset[5] |
| 3420 | movups $inout0,`16*0`($out) # store output |
| 3421 | xorps $inout0,$checksum # accumulate checksum |
| 3422 | movups $inout1,`16*1`($out) |
| 3423 | xorps $inout1,$checksum |
| 3424 | |
| 3425 | jmp .Locb_dec_done |
| 3426 | |
| 3427 | .align 16 |
| 3428 | .Locb_dec_three: |
| 3429 | pxor $inout3,$inout3 |
| 3430 | |
| 3431 | call __ocb_decrypt4 |
| 3432 | |
| 3433 | movdqa @offset[2],@offset[5] |
| 3434 | movups $inout0,`16*0`($out) # store output |
| 3435 | xorps $inout0,$checksum # accumulate checksum |
| 3436 | movups $inout1,`16*1`($out) |
| 3437 | xorps $inout1,$checksum |
| 3438 | movups $inout2,`16*2`($out) |
| 3439 | xorps $inout2,$checksum |
| 3440 | |
| 3441 | jmp .Locb_dec_done |
| 3442 | |
| 3443 | .align 16 |
| 3444 | .Locb_dec_four: |
| 3445 | call __ocb_decrypt4 |
| 3446 | |
| 3447 | movdqa @offset[3],@offset[5] |
| 3448 | movups $inout0,`16*0`($out) # store output |
| 3449 | pxor $inout0,$checksum # accumulate checksum |
| 3450 | movups $inout1,`16*1`($out) |
| 3451 | pxor $inout1,$checksum |
| 3452 | movups $inout2,`16*2`($out) |
| 3453 | pxor $inout2,$checksum |
| 3454 | movups $inout3,`16*3`($out) |
| 3455 | pxor $inout3,$checksum |
| 3456 | |
| 3457 | .Locb_dec_done: |
| 3458 | pxor $rndkey0,@offset[5] # "remove" round[last] |
| 3459 | movdqu $checksum,($checksum_p) # store checksum |
| 3460 | movdqu @offset[5],($offset_p) # store last offset_i |
| 3461 | |
| 3462 | xorps %xmm0,%xmm0 # clear register bank |
| 3463 | pxor %xmm1,%xmm1 |
| 3464 | pxor %xmm2,%xmm2 |
| 3465 | pxor %xmm3,%xmm3 |
| 3466 | pxor %xmm4,%xmm4 |
| 3467 | pxor %xmm5,%xmm5 |
| 3468 | ___ |
| 3469 | $code.=<<___ if (!$win64); |
| 3470 | pxor %xmm6,%xmm6 |
| 3471 | pxor %xmm7,%xmm7 |
| 3472 | pxor %xmm8,%xmm8 |
| 3473 | pxor %xmm9,%xmm9 |
| 3474 | pxor %xmm10,%xmm10 |
| 3475 | pxor %xmm11,%xmm11 |
| 3476 | pxor %xmm12,%xmm12 |
| 3477 | pxor %xmm13,%xmm13 |
| 3478 | pxor %xmm14,%xmm14 |
| 3479 | pxor %xmm15,%xmm15 |
| 3480 | lea 0x28(%rsp),%rax |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3481 | .cfi_def_cfa %rax,8 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3482 | ___ |
| 3483 | $code.=<<___ if ($win64); |
| 3484 | movaps 0x00(%rsp),%xmm6 |
| 3485 | movaps %xmm0,0x00(%rsp) # clear stack |
| 3486 | movaps 0x10(%rsp),%xmm7 |
| 3487 | movaps %xmm0,0x10(%rsp) |
| 3488 | movaps 0x20(%rsp),%xmm8 |
| 3489 | movaps %xmm0,0x20(%rsp) |
| 3490 | movaps 0x30(%rsp),%xmm9 |
| 3491 | movaps %xmm0,0x30(%rsp) |
| 3492 | movaps 0x40(%rsp),%xmm10 |
| 3493 | movaps %xmm0,0x40(%rsp) |
| 3494 | movaps 0x50(%rsp),%xmm11 |
| 3495 | movaps %xmm0,0x50(%rsp) |
| 3496 | movaps 0x60(%rsp),%xmm12 |
| 3497 | movaps %xmm0,0x60(%rsp) |
| 3498 | movaps 0x70(%rsp),%xmm13 |
| 3499 | movaps %xmm0,0x70(%rsp) |
| 3500 | movaps 0x80(%rsp),%xmm14 |
| 3501 | movaps %xmm0,0x80(%rsp) |
| 3502 | movaps 0x90(%rsp),%xmm15 |
| 3503 | movaps %xmm0,0x90(%rsp) |
| 3504 | lea 0xa0+0x28(%rsp),%rax |
| 3505 | .Locb_dec_pop: |
| 3506 | ___ |
| 3507 | $code.=<<___; |
| 3508 | mov -40(%rax),%r14 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3509 | .cfi_restore %r14 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3510 | mov -32(%rax),%r13 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3511 | .cfi_restore %r13 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3512 | mov -24(%rax),%r12 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3513 | .cfi_restore %r12 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3514 | mov -16(%rax),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3515 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3516 | mov -8(%rax),%rbx |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3517 | .cfi_restore %rbx |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3518 | lea (%rax),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3519 | .cfi_def_cfa_register %rsp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3520 | .Locb_dec_epilogue: |
| 3521 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3522 | .cfi_endproc |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 3523 | .size ${PREFIX}_ocb_decrypt,.-${PREFIX}_ocb_decrypt |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3524 | |
| 3525 | .type __ocb_decrypt6,\@abi-omnipotent |
| 3526 | .align 32 |
| 3527 | __ocb_decrypt6: |
| 3528 | pxor $rndkey0l,@offset[5] # offset_i ^ round[0] |
| 3529 | movdqu ($L_p,$i1),@offset[1] |
| 3530 | movdqa @offset[0],@offset[2] |
| 3531 | movdqu ($L_p,$i3),@offset[3] |
| 3532 | movdqa @offset[0],@offset[4] |
| 3533 | pxor @offset[5],@offset[0] |
| 3534 | movdqu ($L_p,$i5),@offset[5] |
| 3535 | pxor @offset[0],@offset[1] |
| 3536 | pxor @offset[0],$inout0 # input ^ round[0] ^ offset_i |
| 3537 | pxor @offset[1],@offset[2] |
| 3538 | pxor @offset[1],$inout1 |
| 3539 | pxor @offset[2],@offset[3] |
| 3540 | pxor @offset[2],$inout2 |
| 3541 | pxor @offset[3],@offset[4] |
| 3542 | pxor @offset[3],$inout3 |
| 3543 | pxor @offset[4],@offset[5] |
| 3544 | pxor @offset[4],$inout4 |
| 3545 | pxor @offset[5],$inout5 |
| 3546 | $movkey 32($key_),$rndkey0 |
| 3547 | |
| 3548 | lea 1($block_num),$i1 # even-numbered blocks |
| 3549 | lea 3($block_num),$i3 |
| 3550 | lea 5($block_num),$i5 |
| 3551 | add \$6,$block_num |
| 3552 | pxor $rndkey0l,@offset[0] # offset_i ^ round[last] |
| 3553 | bsf $i1,$i1 # ntz(block) |
| 3554 | bsf $i3,$i3 |
| 3555 | bsf $i5,$i5 |
| 3556 | |
| 3557 | aesdec $rndkey1,$inout0 |
| 3558 | aesdec $rndkey1,$inout1 |
| 3559 | aesdec $rndkey1,$inout2 |
| 3560 | aesdec $rndkey1,$inout3 |
| 3561 | pxor $rndkey0l,@offset[1] |
| 3562 | pxor $rndkey0l,@offset[2] |
| 3563 | aesdec $rndkey1,$inout4 |
| 3564 | pxor $rndkey0l,@offset[3] |
| 3565 | pxor $rndkey0l,@offset[4] |
| 3566 | aesdec $rndkey1,$inout5 |
| 3567 | $movkey 48($key_),$rndkey1 |
| 3568 | pxor $rndkey0l,@offset[5] |
| 3569 | |
| 3570 | aesdec $rndkey0,$inout0 |
| 3571 | aesdec $rndkey0,$inout1 |
| 3572 | aesdec $rndkey0,$inout2 |
| 3573 | aesdec $rndkey0,$inout3 |
| 3574 | aesdec $rndkey0,$inout4 |
| 3575 | aesdec $rndkey0,$inout5 |
| 3576 | $movkey 64($key_),$rndkey0 |
| 3577 | shl \$4,$i1 # ntz(block) -> table offset |
| 3578 | shl \$4,$i3 |
| 3579 | jmp .Locb_dec_loop6 |
| 3580 | |
| 3581 | .align 32 |
| 3582 | .Locb_dec_loop6: |
| 3583 | aesdec $rndkey1,$inout0 |
| 3584 | aesdec $rndkey1,$inout1 |
| 3585 | aesdec $rndkey1,$inout2 |
| 3586 | aesdec $rndkey1,$inout3 |
| 3587 | aesdec $rndkey1,$inout4 |
| 3588 | aesdec $rndkey1,$inout5 |
| 3589 | $movkey ($key,%rax),$rndkey1 |
| 3590 | add \$32,%rax |
| 3591 | |
| 3592 | aesdec $rndkey0,$inout0 |
| 3593 | aesdec $rndkey0,$inout1 |
| 3594 | aesdec $rndkey0,$inout2 |
| 3595 | aesdec $rndkey0,$inout3 |
| 3596 | aesdec $rndkey0,$inout4 |
| 3597 | aesdec $rndkey0,$inout5 |
| 3598 | $movkey -16($key,%rax),$rndkey0 |
| 3599 | jnz .Locb_dec_loop6 |
| 3600 | |
| 3601 | aesdec $rndkey1,$inout0 |
| 3602 | aesdec $rndkey1,$inout1 |
| 3603 | aesdec $rndkey1,$inout2 |
| 3604 | aesdec $rndkey1,$inout3 |
| 3605 | aesdec $rndkey1,$inout4 |
| 3606 | aesdec $rndkey1,$inout5 |
| 3607 | $movkey 16($key_),$rndkey1 |
| 3608 | shl \$4,$i5 |
| 3609 | |
| 3610 | aesdeclast @offset[0],$inout0 |
| 3611 | movdqu ($L_p),@offset[0] # L_0 for all odd-numbered blocks |
| 3612 | mov %r10,%rax # restore twisted rounds |
| 3613 | aesdeclast @offset[1],$inout1 |
| 3614 | aesdeclast @offset[2],$inout2 |
| 3615 | aesdeclast @offset[3],$inout3 |
| 3616 | aesdeclast @offset[4],$inout4 |
| 3617 | aesdeclast @offset[5],$inout5 |
| 3618 | ret |
| 3619 | .size __ocb_decrypt6,.-__ocb_decrypt6 |
| 3620 | |
| 3621 | .type __ocb_decrypt4,\@abi-omnipotent |
| 3622 | .align 32 |
| 3623 | __ocb_decrypt4: |
| 3624 | pxor $rndkey0l,@offset[5] # offset_i ^ round[0] |
| 3625 | movdqu ($L_p,$i1),@offset[1] |
| 3626 | movdqa @offset[0],@offset[2] |
| 3627 | movdqu ($L_p,$i3),@offset[3] |
| 3628 | pxor @offset[5],@offset[0] |
| 3629 | pxor @offset[0],@offset[1] |
| 3630 | pxor @offset[0],$inout0 # input ^ round[0] ^ offset_i |
| 3631 | pxor @offset[1],@offset[2] |
| 3632 | pxor @offset[1],$inout1 |
| 3633 | pxor @offset[2],@offset[3] |
| 3634 | pxor @offset[2],$inout2 |
| 3635 | pxor @offset[3],$inout3 |
| 3636 | $movkey 32($key_),$rndkey0 |
| 3637 | |
| 3638 | pxor $rndkey0l,@offset[0] # offset_i ^ round[last] |
| 3639 | pxor $rndkey0l,@offset[1] |
| 3640 | pxor $rndkey0l,@offset[2] |
| 3641 | pxor $rndkey0l,@offset[3] |
| 3642 | |
| 3643 | aesdec $rndkey1,$inout0 |
| 3644 | aesdec $rndkey1,$inout1 |
| 3645 | aesdec $rndkey1,$inout2 |
| 3646 | aesdec $rndkey1,$inout3 |
| 3647 | $movkey 48($key_),$rndkey1 |
| 3648 | |
| 3649 | aesdec $rndkey0,$inout0 |
| 3650 | aesdec $rndkey0,$inout1 |
| 3651 | aesdec $rndkey0,$inout2 |
| 3652 | aesdec $rndkey0,$inout3 |
| 3653 | $movkey 64($key_),$rndkey0 |
| 3654 | jmp .Locb_dec_loop4 |
| 3655 | |
| 3656 | .align 32 |
| 3657 | .Locb_dec_loop4: |
| 3658 | aesdec $rndkey1,$inout0 |
| 3659 | aesdec $rndkey1,$inout1 |
| 3660 | aesdec $rndkey1,$inout2 |
| 3661 | aesdec $rndkey1,$inout3 |
| 3662 | $movkey ($key,%rax),$rndkey1 |
| 3663 | add \$32,%rax |
| 3664 | |
| 3665 | aesdec $rndkey0,$inout0 |
| 3666 | aesdec $rndkey0,$inout1 |
| 3667 | aesdec $rndkey0,$inout2 |
| 3668 | aesdec $rndkey0,$inout3 |
| 3669 | $movkey -16($key,%rax),$rndkey0 |
| 3670 | jnz .Locb_dec_loop4 |
| 3671 | |
| 3672 | aesdec $rndkey1,$inout0 |
| 3673 | aesdec $rndkey1,$inout1 |
| 3674 | aesdec $rndkey1,$inout2 |
| 3675 | aesdec $rndkey1,$inout3 |
| 3676 | $movkey 16($key_),$rndkey1 |
| 3677 | mov %r10,%rax # restore twisted rounds |
| 3678 | |
| 3679 | aesdeclast @offset[0],$inout0 |
| 3680 | aesdeclast @offset[1],$inout1 |
| 3681 | aesdeclast @offset[2],$inout2 |
| 3682 | aesdeclast @offset[3],$inout3 |
| 3683 | ret |
| 3684 | .size __ocb_decrypt4,.-__ocb_decrypt4 |
| 3685 | |
| 3686 | .type __ocb_decrypt1,\@abi-omnipotent |
| 3687 | .align 32 |
| 3688 | __ocb_decrypt1: |
| 3689 | pxor @offset[5],$inout5 # offset_i |
| 3690 | pxor $rndkey0l,$inout5 # offset_i ^ round[0] |
| 3691 | pxor $inout5,$inout0 # input ^ round[0] ^ offset_i |
| 3692 | $movkey 32($key_),$rndkey0 |
| 3693 | |
| 3694 | aesdec $rndkey1,$inout0 |
| 3695 | $movkey 48($key_),$rndkey1 |
| 3696 | pxor $rndkey0l,$inout5 # offset_i ^ round[last] |
| 3697 | |
| 3698 | aesdec $rndkey0,$inout0 |
| 3699 | $movkey 64($key_),$rndkey0 |
| 3700 | jmp .Locb_dec_loop1 |
| 3701 | |
| 3702 | .align 32 |
| 3703 | .Locb_dec_loop1: |
| 3704 | aesdec $rndkey1,$inout0 |
| 3705 | $movkey ($key,%rax),$rndkey1 |
| 3706 | add \$32,%rax |
| 3707 | |
| 3708 | aesdec $rndkey0,$inout0 |
| 3709 | $movkey -16($key,%rax),$rndkey0 |
| 3710 | jnz .Locb_dec_loop1 |
| 3711 | |
| 3712 | aesdec $rndkey1,$inout0 |
| 3713 | $movkey 16($key_),$rndkey1 # redundant in tail |
| 3714 | mov %r10,%rax # restore twisted rounds |
| 3715 | |
| 3716 | aesdeclast $inout5,$inout0 |
| 3717 | ret |
| 3718 | .size __ocb_decrypt1,.-__ocb_decrypt1 |
| 3719 | ___ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3720 | } }} |
| 3721 | |
| 3722 | ######################################################################## |
| 3723 | # void $PREFIX_cbc_encrypt (const void *inp, void *out, |
| 3724 | # size_t length, const AES_KEY *key, |
| 3725 | # unsigned char *ivp,const int enc); |
| 3726 | { |
| 3727 | my $frame_size = 0x10 + ($win64?0xa0:0); # used in decrypt |
| 3728 | my ($iv,$in0,$in1,$in2,$in3,$in4)=map("%xmm$_",(10..15)); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3729 | |
| 3730 | $code.=<<___; |
| 3731 | .globl ${PREFIX}_cbc_encrypt |
| 3732 | .type ${PREFIX}_cbc_encrypt,\@function,6 |
| 3733 | .align 16 |
| 3734 | ${PREFIX}_cbc_encrypt: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3735 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3736 | test $len,$len # check length |
| 3737 | jz .Lcbc_ret |
| 3738 | |
| 3739 | mov 240($key),$rnds_ # key->rounds |
| 3740 | mov $key,$key_ # backup $key |
| 3741 | test %r9d,%r9d # 6th argument |
| 3742 | jz .Lcbc_decrypt |
| 3743 | #--------------------------- CBC ENCRYPT ------------------------------# |
| 3744 | movups ($ivp),$inout0 # load iv as initial state |
| 3745 | mov $rnds_,$rounds |
| 3746 | cmp \$16,$len |
| 3747 | jb .Lcbc_enc_tail |
| 3748 | sub \$16,$len |
| 3749 | jmp .Lcbc_enc_loop |
| 3750 | .align 16 |
| 3751 | .Lcbc_enc_loop: |
| 3752 | movups ($inp),$inout1 # load input |
| 3753 | lea 16($inp),$inp |
| 3754 | #xorps $inout1,$inout0 |
| 3755 | ___ |
| 3756 | &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); |
| 3757 | $code.=<<___; |
| 3758 | mov $rnds_,$rounds # restore $rounds |
| 3759 | mov $key_,$key # restore $key |
| 3760 | movups $inout0,0($out) # store output |
| 3761 | lea 16($out),$out |
| 3762 | sub \$16,$len |
| 3763 | jnc .Lcbc_enc_loop |
| 3764 | add \$16,$len |
| 3765 | jnz .Lcbc_enc_tail |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3766 | pxor $rndkey0,$rndkey0 # clear register bank |
| 3767 | pxor $rndkey1,$rndkey1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3768 | movups $inout0,($ivp) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3769 | pxor $inout0,$inout0 |
| 3770 | pxor $inout1,$inout1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3771 | jmp .Lcbc_ret |
| 3772 | |
| 3773 | .Lcbc_enc_tail: |
| 3774 | mov $len,%rcx # zaps $key |
| 3775 | xchg $inp,$out # $inp is %rsi and $out is %rdi now |
| 3776 | .long 0x9066A4F3 # rep movsb |
| 3777 | mov \$16,%ecx # zero tail |
| 3778 | sub $len,%rcx |
| 3779 | xor %eax,%eax |
| 3780 | .long 0x9066AAF3 # rep stosb |
| 3781 | lea -16(%rdi),%rdi # rewind $out by 1 block |
| 3782 | mov $rnds_,$rounds # restore $rounds |
| 3783 | mov %rdi,%rsi # $inp and $out are the same |
| 3784 | mov $key_,$key # restore $key |
| 3785 | xor $len,$len # len=16 |
| 3786 | jmp .Lcbc_enc_loop # one more spin |
| 3787 | #--------------------------- CBC DECRYPT ------------------------------# |
| 3788 | .align 16 |
| 3789 | .Lcbc_decrypt: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3790 | cmp \$16,$len |
| 3791 | jne .Lcbc_decrypt_bulk |
| 3792 | |
| 3793 | # handle single block without allocating stack frame, |
| 3794 | # useful in ciphertext stealing mode |
| 3795 | movdqu ($inp),$inout0 # load input |
| 3796 | movdqu ($ivp),$inout1 # load iv |
| 3797 | movdqa $inout0,$inout2 # future iv |
| 3798 | ___ |
| 3799 | &aesni_generate1("dec",$key,$rnds_); |
| 3800 | $code.=<<___; |
| 3801 | pxor $rndkey0,$rndkey0 # clear register bank |
| 3802 | pxor $rndkey1,$rndkey1 |
| 3803 | movdqu $inout2,($ivp) # store iv |
| 3804 | xorps $inout1,$inout0 # ^=iv |
| 3805 | pxor $inout1,$inout1 |
| 3806 | movups $inout0,($out) # store output |
| 3807 | pxor $inout0,$inout0 |
| 3808 | jmp .Lcbc_ret |
| 3809 | .align 16 |
| 3810 | .Lcbc_decrypt_bulk: |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3811 | lea (%rsp),%r11 # frame pointer |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3812 | .cfi_def_cfa_register %r11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3813 | push %rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 3814 | .cfi_push %rbp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3815 | sub \$$frame_size,%rsp |
| 3816 | and \$-16,%rsp # Linux kernel stack can be incorrectly seeded |
| 3817 | ___ |
| 3818 | $code.=<<___ if ($win64); |
| 3819 | movaps %xmm6,0x10(%rsp) |
| 3820 | movaps %xmm7,0x20(%rsp) |
| 3821 | movaps %xmm8,0x30(%rsp) |
| 3822 | movaps %xmm9,0x40(%rsp) |
| 3823 | movaps %xmm10,0x50(%rsp) |
| 3824 | movaps %xmm11,0x60(%rsp) |
| 3825 | movaps %xmm12,0x70(%rsp) |
| 3826 | movaps %xmm13,0x80(%rsp) |
| 3827 | movaps %xmm14,0x90(%rsp) |
| 3828 | movaps %xmm15,0xa0(%rsp) |
| 3829 | .Lcbc_decrypt_body: |
| 3830 | ___ |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3831 | |
| 3832 | my $inp_=$key_="%rbp"; # reassign $key_ |
| 3833 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3834 | $code.=<<___; |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3835 | mov $key,$key_ # [re-]backup $key [after reassignment] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3836 | movups ($ivp),$iv |
| 3837 | mov $rnds_,$rounds |
| 3838 | cmp \$0x50,$len |
| 3839 | jbe .Lcbc_dec_tail |
| 3840 | |
| 3841 | $movkey ($key),$rndkey0 |
| 3842 | movdqu 0x00($inp),$inout0 # load input |
| 3843 | movdqu 0x10($inp),$inout1 |
| 3844 | movdqa $inout0,$in0 |
| 3845 | movdqu 0x20($inp),$inout2 |
| 3846 | movdqa $inout1,$in1 |
| 3847 | movdqu 0x30($inp),$inout3 |
| 3848 | movdqa $inout2,$in2 |
| 3849 | movdqu 0x40($inp),$inout4 |
| 3850 | movdqa $inout3,$in3 |
| 3851 | movdqu 0x50($inp),$inout5 |
| 3852 | movdqa $inout4,$in4 |
Robert Sloan | 2424d84 | 2017-05-01 07:46:28 -0700 | [diff] [blame] | 3853 | leaq OPENSSL_ia32cap_P(%rip),%r9 |
Robert Sloan | 572a4e2 | 2017-04-17 10:52:19 -0700 | [diff] [blame] | 3854 | mov 4(%r9),%r9d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3855 | cmp \$0x70,$len |
| 3856 | jbe .Lcbc_dec_six_or_seven |
| 3857 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3858 | and \$`1<<26|1<<22`,%r9d # isolate XSAVE+MOVBE |
| 3859 | sub \$0x50,$len # $len is biased by -5*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3860 | cmp \$`1<<22`,%r9d # check for MOVBE without XSAVE |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3861 | je .Lcbc_dec_loop6_enter # [which denotes Atom Silvermont] |
| 3862 | sub \$0x20,$len # $len is biased by -7*16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3863 | lea 0x70($key),$key # size optimization |
| 3864 | jmp .Lcbc_dec_loop8_enter |
| 3865 | .align 16 |
| 3866 | .Lcbc_dec_loop8: |
| 3867 | movups $inout7,($out) |
| 3868 | lea 0x10($out),$out |
| 3869 | .Lcbc_dec_loop8_enter: |
| 3870 | movdqu 0x60($inp),$inout6 |
| 3871 | pxor $rndkey0,$inout0 |
| 3872 | movdqu 0x70($inp),$inout7 |
| 3873 | pxor $rndkey0,$inout1 |
| 3874 | $movkey 0x10-0x70($key),$rndkey1 |
| 3875 | pxor $rndkey0,$inout2 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3876 | mov \$-1,$inp_ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3877 | cmp \$0x70,$len # is there at least 0x60 bytes ahead? |
| 3878 | pxor $rndkey0,$inout3 |
| 3879 | pxor $rndkey0,$inout4 |
| 3880 | pxor $rndkey0,$inout5 |
| 3881 | pxor $rndkey0,$inout6 |
| 3882 | |
| 3883 | aesdec $rndkey1,$inout0 |
| 3884 | pxor $rndkey0,$inout7 |
| 3885 | $movkey 0x20-0x70($key),$rndkey0 |
| 3886 | aesdec $rndkey1,$inout1 |
| 3887 | aesdec $rndkey1,$inout2 |
| 3888 | aesdec $rndkey1,$inout3 |
| 3889 | aesdec $rndkey1,$inout4 |
| 3890 | aesdec $rndkey1,$inout5 |
| 3891 | aesdec $rndkey1,$inout6 |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 3892 | adc \$0,$inp_ |
| 3893 | and \$128,$inp_ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3894 | aesdec $rndkey1,$inout7 |
| 3895 | add $inp,$inp_ |
| 3896 | $movkey 0x30-0x70($key),$rndkey1 |
| 3897 | ___ |
| 3898 | for($i=1;$i<12;$i++) { |
| 3899 | my $rndkeyx = ($i&1)?$rndkey0:$rndkey1; |
| 3900 | $code.=<<___ if ($i==7); |
| 3901 | cmp \$11,$rounds |
| 3902 | ___ |
| 3903 | $code.=<<___; |
| 3904 | aesdec $rndkeyx,$inout0 |
| 3905 | aesdec $rndkeyx,$inout1 |
| 3906 | aesdec $rndkeyx,$inout2 |
| 3907 | aesdec $rndkeyx,$inout3 |
| 3908 | aesdec $rndkeyx,$inout4 |
| 3909 | aesdec $rndkeyx,$inout5 |
| 3910 | aesdec $rndkeyx,$inout6 |
| 3911 | aesdec $rndkeyx,$inout7 |
| 3912 | $movkey `0x30+0x10*$i`-0x70($key),$rndkeyx |
| 3913 | ___ |
| 3914 | $code.=<<___ if ($i<6 || (!($i&1) && $i>7)); |
| 3915 | nop |
| 3916 | ___ |
| 3917 | $code.=<<___ if ($i==7); |
| 3918 | jb .Lcbc_dec_done |
| 3919 | ___ |
| 3920 | $code.=<<___ if ($i==9); |
| 3921 | je .Lcbc_dec_done |
| 3922 | ___ |
| 3923 | $code.=<<___ if ($i==11); |
| 3924 | jmp .Lcbc_dec_done |
| 3925 | ___ |
| 3926 | } |
| 3927 | $code.=<<___; |
| 3928 | .align 16 |
| 3929 | .Lcbc_dec_done: |
| 3930 | aesdec $rndkey1,$inout0 |
| 3931 | aesdec $rndkey1,$inout1 |
| 3932 | pxor $rndkey0,$iv |
| 3933 | pxor $rndkey0,$in0 |
| 3934 | aesdec $rndkey1,$inout2 |
| 3935 | aesdec $rndkey1,$inout3 |
| 3936 | pxor $rndkey0,$in1 |
| 3937 | pxor $rndkey0,$in2 |
| 3938 | aesdec $rndkey1,$inout4 |
| 3939 | aesdec $rndkey1,$inout5 |
| 3940 | pxor $rndkey0,$in3 |
| 3941 | pxor $rndkey0,$in4 |
| 3942 | aesdec $rndkey1,$inout6 |
| 3943 | aesdec $rndkey1,$inout7 |
| 3944 | movdqu 0x50($inp),$rndkey1 |
| 3945 | |
| 3946 | aesdeclast $iv,$inout0 |
| 3947 | movdqu 0x60($inp),$iv # borrow $iv |
| 3948 | pxor $rndkey0,$rndkey1 |
| 3949 | aesdeclast $in0,$inout1 |
| 3950 | pxor $rndkey0,$iv |
| 3951 | movdqu 0x70($inp),$rndkey0 # next IV |
| 3952 | aesdeclast $in1,$inout2 |
| 3953 | lea 0x80($inp),$inp |
| 3954 | movdqu 0x00($inp_),$in0 |
| 3955 | aesdeclast $in2,$inout3 |
| 3956 | aesdeclast $in3,$inout4 |
| 3957 | movdqu 0x10($inp_),$in1 |
| 3958 | movdqu 0x20($inp_),$in2 |
| 3959 | aesdeclast $in4,$inout5 |
| 3960 | aesdeclast $rndkey1,$inout6 |
| 3961 | movdqu 0x30($inp_),$in3 |
| 3962 | movdqu 0x40($inp_),$in4 |
| 3963 | aesdeclast $iv,$inout7 |
| 3964 | movdqa $rndkey0,$iv # return $iv |
| 3965 | movdqu 0x50($inp_),$rndkey1 |
| 3966 | $movkey -0x70($key),$rndkey0 |
| 3967 | |
| 3968 | movups $inout0,($out) # store output |
| 3969 | movdqa $in0,$inout0 |
| 3970 | movups $inout1,0x10($out) |
| 3971 | movdqa $in1,$inout1 |
| 3972 | movups $inout2,0x20($out) |
| 3973 | movdqa $in2,$inout2 |
| 3974 | movups $inout3,0x30($out) |
| 3975 | movdqa $in3,$inout3 |
| 3976 | movups $inout4,0x40($out) |
| 3977 | movdqa $in4,$inout4 |
| 3978 | movups $inout5,0x50($out) |
| 3979 | movdqa $rndkey1,$inout5 |
| 3980 | movups $inout6,0x60($out) |
| 3981 | lea 0x70($out),$out |
| 3982 | |
| 3983 | sub \$0x80,$len |
| 3984 | ja .Lcbc_dec_loop8 |
| 3985 | |
| 3986 | movaps $inout7,$inout0 |
| 3987 | lea -0x70($key),$key |
| 3988 | add \$0x70,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 3989 | jle .Lcbc_dec_clear_tail_collected |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 3990 | movups $inout7,($out) |
| 3991 | lea 0x10($out),$out |
| 3992 | cmp \$0x50,$len |
| 3993 | jbe .Lcbc_dec_tail |
| 3994 | |
| 3995 | movaps $in0,$inout0 |
| 3996 | .Lcbc_dec_six_or_seven: |
| 3997 | cmp \$0x60,$len |
| 3998 | ja .Lcbc_dec_seven |
| 3999 | |
| 4000 | movaps $inout5,$inout6 |
| 4001 | call _aesni_decrypt6 |
| 4002 | pxor $iv,$inout0 # ^= IV |
| 4003 | movaps $inout6,$iv |
| 4004 | pxor $in0,$inout1 |
| 4005 | movdqu $inout0,($out) |
| 4006 | pxor $in1,$inout2 |
| 4007 | movdqu $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4008 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4009 | pxor $in2,$inout3 |
| 4010 | movdqu $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4011 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4012 | pxor $in3,$inout4 |
| 4013 | movdqu $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4014 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4015 | pxor $in4,$inout5 |
| 4016 | movdqu $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4017 | pxor $inout4,$inout4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4018 | lea 0x50($out),$out |
| 4019 | movdqa $inout5,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4020 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4021 | jmp .Lcbc_dec_tail_collected |
| 4022 | |
| 4023 | .align 16 |
| 4024 | .Lcbc_dec_seven: |
| 4025 | movups 0x60($inp),$inout6 |
| 4026 | xorps $inout7,$inout7 |
| 4027 | call _aesni_decrypt8 |
| 4028 | movups 0x50($inp),$inout7 |
| 4029 | pxor $iv,$inout0 # ^= IV |
| 4030 | movups 0x60($inp),$iv |
| 4031 | pxor $in0,$inout1 |
| 4032 | movdqu $inout0,($out) |
| 4033 | pxor $in1,$inout2 |
| 4034 | movdqu $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4035 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4036 | pxor $in2,$inout3 |
| 4037 | movdqu $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4038 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4039 | pxor $in3,$inout4 |
| 4040 | movdqu $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4041 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4042 | pxor $in4,$inout5 |
| 4043 | movdqu $inout4,0x40($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4044 | pxor $inout4,$inout4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4045 | pxor $inout7,$inout6 |
| 4046 | movdqu $inout5,0x50($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4047 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4048 | lea 0x60($out),$out |
| 4049 | movdqa $inout6,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4050 | pxor $inout6,$inout6 |
| 4051 | pxor $inout7,$inout7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4052 | jmp .Lcbc_dec_tail_collected |
| 4053 | |
| 4054 | .align 16 |
| 4055 | .Lcbc_dec_loop6: |
| 4056 | movups $inout5,($out) |
| 4057 | lea 0x10($out),$out |
| 4058 | movdqu 0x00($inp),$inout0 # load input |
| 4059 | movdqu 0x10($inp),$inout1 |
| 4060 | movdqa $inout0,$in0 |
| 4061 | movdqu 0x20($inp),$inout2 |
| 4062 | movdqa $inout1,$in1 |
| 4063 | movdqu 0x30($inp),$inout3 |
| 4064 | movdqa $inout2,$in2 |
| 4065 | movdqu 0x40($inp),$inout4 |
| 4066 | movdqa $inout3,$in3 |
| 4067 | movdqu 0x50($inp),$inout5 |
| 4068 | movdqa $inout4,$in4 |
| 4069 | .Lcbc_dec_loop6_enter: |
| 4070 | lea 0x60($inp),$inp |
| 4071 | movdqa $inout5,$inout6 |
| 4072 | |
| 4073 | call _aesni_decrypt6 |
| 4074 | |
| 4075 | pxor $iv,$inout0 # ^= IV |
| 4076 | movdqa $inout6,$iv |
| 4077 | pxor $in0,$inout1 |
| 4078 | movdqu $inout0,($out) |
| 4079 | pxor $in1,$inout2 |
| 4080 | movdqu $inout1,0x10($out) |
| 4081 | pxor $in2,$inout3 |
| 4082 | movdqu $inout2,0x20($out) |
| 4083 | pxor $in3,$inout4 |
| 4084 | mov $key_,$key |
| 4085 | movdqu $inout3,0x30($out) |
| 4086 | pxor $in4,$inout5 |
| 4087 | mov $rnds_,$rounds |
| 4088 | movdqu $inout4,0x40($out) |
| 4089 | lea 0x50($out),$out |
| 4090 | sub \$0x60,$len |
| 4091 | ja .Lcbc_dec_loop6 |
| 4092 | |
| 4093 | movdqa $inout5,$inout0 |
| 4094 | add \$0x50,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4095 | jle .Lcbc_dec_clear_tail_collected |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4096 | movups $inout5,($out) |
| 4097 | lea 0x10($out),$out |
| 4098 | |
| 4099 | .Lcbc_dec_tail: |
| 4100 | movups ($inp),$inout0 |
| 4101 | sub \$0x10,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4102 | jbe .Lcbc_dec_one # $len is 1*16 or less |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4103 | |
| 4104 | movups 0x10($inp),$inout1 |
| 4105 | movaps $inout0,$in0 |
| 4106 | sub \$0x10,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4107 | jbe .Lcbc_dec_two # $len is 2*16 or less |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4108 | |
| 4109 | movups 0x20($inp),$inout2 |
| 4110 | movaps $inout1,$in1 |
| 4111 | sub \$0x10,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4112 | jbe .Lcbc_dec_three # $len is 3*16 or less |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4113 | |
| 4114 | movups 0x30($inp),$inout3 |
| 4115 | movaps $inout2,$in2 |
| 4116 | sub \$0x10,$len |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4117 | jbe .Lcbc_dec_four # $len is 4*16 or less |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4118 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4119 | movups 0x40($inp),$inout4 # $len is 5*16 or less |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4120 | movaps $inout3,$in3 |
| 4121 | movaps $inout4,$in4 |
| 4122 | xorps $inout5,$inout5 |
| 4123 | call _aesni_decrypt6 |
| 4124 | pxor $iv,$inout0 |
| 4125 | movaps $in4,$iv |
| 4126 | pxor $in0,$inout1 |
| 4127 | movdqu $inout0,($out) |
| 4128 | pxor $in1,$inout2 |
| 4129 | movdqu $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4130 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4131 | pxor $in2,$inout3 |
| 4132 | movdqu $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4133 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4134 | pxor $in3,$inout4 |
| 4135 | movdqu $inout3,0x30($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4136 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4137 | lea 0x40($out),$out |
| 4138 | movdqa $inout4,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4139 | pxor $inout4,$inout4 |
| 4140 | pxor $inout5,$inout5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4141 | sub \$0x10,$len |
| 4142 | jmp .Lcbc_dec_tail_collected |
| 4143 | |
| 4144 | .align 16 |
| 4145 | .Lcbc_dec_one: |
| 4146 | movaps $inout0,$in0 |
| 4147 | ___ |
| 4148 | &aesni_generate1("dec",$key,$rounds); |
| 4149 | $code.=<<___; |
| 4150 | xorps $iv,$inout0 |
| 4151 | movaps $in0,$iv |
| 4152 | jmp .Lcbc_dec_tail_collected |
| 4153 | .align 16 |
| 4154 | .Lcbc_dec_two: |
| 4155 | movaps $inout1,$in1 |
| 4156 | call _aesni_decrypt2 |
| 4157 | pxor $iv,$inout0 |
| 4158 | movaps $in1,$iv |
| 4159 | pxor $in0,$inout1 |
| 4160 | movdqu $inout0,($out) |
| 4161 | movdqa $inout1,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4162 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4163 | lea 0x10($out),$out |
| 4164 | jmp .Lcbc_dec_tail_collected |
| 4165 | .align 16 |
| 4166 | .Lcbc_dec_three: |
| 4167 | movaps $inout2,$in2 |
| 4168 | call _aesni_decrypt3 |
| 4169 | pxor $iv,$inout0 |
| 4170 | movaps $in2,$iv |
| 4171 | pxor $in0,$inout1 |
| 4172 | movdqu $inout0,($out) |
| 4173 | pxor $in1,$inout2 |
| 4174 | movdqu $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4175 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4176 | movdqa $inout2,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4177 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4178 | lea 0x20($out),$out |
| 4179 | jmp .Lcbc_dec_tail_collected |
| 4180 | .align 16 |
| 4181 | .Lcbc_dec_four: |
| 4182 | movaps $inout3,$in3 |
| 4183 | call _aesni_decrypt4 |
| 4184 | pxor $iv,$inout0 |
| 4185 | movaps $in3,$iv |
| 4186 | pxor $in0,$inout1 |
| 4187 | movdqu $inout0,($out) |
| 4188 | pxor $in1,$inout2 |
| 4189 | movdqu $inout1,0x10($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4190 | pxor $inout1,$inout1 # clear register bank |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4191 | pxor $in2,$inout3 |
| 4192 | movdqu $inout2,0x20($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4193 | pxor $inout2,$inout2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4194 | movdqa $inout3,$inout0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4195 | pxor $inout3,$inout3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4196 | lea 0x30($out),$out |
| 4197 | jmp .Lcbc_dec_tail_collected |
| 4198 | |
| 4199 | .align 16 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4200 | .Lcbc_dec_clear_tail_collected: |
| 4201 | pxor $inout1,$inout1 # clear register bank |
| 4202 | pxor $inout2,$inout2 |
| 4203 | pxor $inout3,$inout3 |
| 4204 | ___ |
| 4205 | $code.=<<___ if (!$win64); |
| 4206 | pxor $inout4,$inout4 # %xmm6..9 |
| 4207 | pxor $inout5,$inout5 |
| 4208 | pxor $inout6,$inout6 |
| 4209 | pxor $inout7,$inout7 |
| 4210 | ___ |
| 4211 | $code.=<<___; |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4212 | .Lcbc_dec_tail_collected: |
| 4213 | movups $iv,($ivp) |
| 4214 | and \$15,$len |
| 4215 | jnz .Lcbc_dec_tail_partial |
| 4216 | movups $inout0,($out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4217 | pxor $inout0,$inout0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4218 | jmp .Lcbc_dec_ret |
| 4219 | .align 16 |
| 4220 | .Lcbc_dec_tail_partial: |
| 4221 | movaps $inout0,(%rsp) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4222 | pxor $inout0,$inout0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4223 | mov \$16,%rcx |
| 4224 | mov $out,%rdi |
| 4225 | sub $len,%rcx |
| 4226 | lea (%rsp),%rsi |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4227 | .long 0x9066A4F3 # rep movsb |
| 4228 | movdqa $inout0,(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4229 | |
| 4230 | .Lcbc_dec_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4231 | xorps $rndkey0,$rndkey0 # %xmm0 |
| 4232 | pxor $rndkey1,$rndkey1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4233 | ___ |
| 4234 | $code.=<<___ if ($win64); |
| 4235 | movaps 0x10(%rsp),%xmm6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4236 | movaps %xmm0,0x10(%rsp) # clear stack |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4237 | movaps 0x20(%rsp),%xmm7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4238 | movaps %xmm0,0x20(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4239 | movaps 0x30(%rsp),%xmm8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4240 | movaps %xmm0,0x30(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4241 | movaps 0x40(%rsp),%xmm9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4242 | movaps %xmm0,0x40(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4243 | movaps 0x50(%rsp),%xmm10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4244 | movaps %xmm0,0x50(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4245 | movaps 0x60(%rsp),%xmm11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4246 | movaps %xmm0,0x60(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4247 | movaps 0x70(%rsp),%xmm12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4248 | movaps %xmm0,0x70(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4249 | movaps 0x80(%rsp),%xmm13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4250 | movaps %xmm0,0x80(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4251 | movaps 0x90(%rsp),%xmm14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4252 | movaps %xmm0,0x90(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4253 | movaps 0xa0(%rsp),%xmm15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4254 | movaps %xmm0,0xa0(%rsp) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4255 | ___ |
| 4256 | $code.=<<___; |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4257 | mov -8(%r11),%rbp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4258 | .cfi_restore %rbp |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4259 | lea (%r11),%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4260 | .cfi_def_cfa_register %rsp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4261 | .Lcbc_ret: |
| 4262 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4263 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4264 | .size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt |
| 4265 | ___ |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 4266 | } |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4267 | # int ${PREFIX}_set_decrypt_key(const unsigned char *inp, |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4268 | # int bits, AES_KEY *key) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4269 | # |
| 4270 | # input: $inp user-supplied key |
| 4271 | # $bits $inp length in bits |
| 4272 | # $key pointer to key schedule |
| 4273 | # output: %eax 0 denoting success, -1 or -2 - failure (see C) |
| 4274 | # *$key key schedule |
| 4275 | # |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4276 | { my ($inp,$bits,$key) = @_4args; |
| 4277 | $bits =~ s/%r/%e/; |
| 4278 | |
| 4279 | $code.=<<___; |
| 4280 | .globl ${PREFIX}_set_decrypt_key |
| 4281 | .type ${PREFIX}_set_decrypt_key,\@abi-omnipotent |
| 4282 | .align 16 |
| 4283 | ${PREFIX}_set_decrypt_key: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4284 | .cfi_startproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4285 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4286 | .cfi_adjust_cfa_offset 8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4287 | call __aesni_set_encrypt_key |
| 4288 | shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key |
| 4289 | test %eax,%eax |
| 4290 | jnz .Ldec_key_ret |
| 4291 | lea 16($key,$bits),$inp # points at the end of key schedule |
| 4292 | |
| 4293 | $movkey ($key),%xmm0 # just swap |
| 4294 | $movkey ($inp),%xmm1 |
| 4295 | $movkey %xmm0,($inp) |
| 4296 | $movkey %xmm1,($key) |
| 4297 | lea 16($key),$key |
| 4298 | lea -16($inp),$inp |
| 4299 | |
| 4300 | .Ldec_key_inverse: |
| 4301 | $movkey ($key),%xmm0 # swap and inverse |
| 4302 | $movkey ($inp),%xmm1 |
| 4303 | aesimc %xmm0,%xmm0 |
| 4304 | aesimc %xmm1,%xmm1 |
| 4305 | lea 16($key),$key |
| 4306 | lea -16($inp),$inp |
| 4307 | $movkey %xmm0,16($inp) |
| 4308 | $movkey %xmm1,-16($key) |
| 4309 | cmp $key,$inp |
| 4310 | ja .Ldec_key_inverse |
| 4311 | |
| 4312 | $movkey ($key),%xmm0 # inverse middle |
| 4313 | aesimc %xmm0,%xmm0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4314 | pxor %xmm1,%xmm1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4315 | $movkey %xmm0,($inp) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4316 | pxor %xmm0,%xmm0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4317 | .Ldec_key_ret: |
| 4318 | add \$8,%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4319 | .cfi_adjust_cfa_offset -8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4320 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4321 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4322 | .LSEH_end_set_decrypt_key: |
| 4323 | .size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key |
| 4324 | ___ |
| 4325 | |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4326 | # This is based on submission from Intel by |
| 4327 | # Huang Ying |
| 4328 | # Vinodh Gopal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4329 | # Kahraman Akdemir |
| 4330 | # |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4331 | # Aggressively optimized in respect to aeskeygenassist's critical path |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4332 | # and is contained in %xmm0-5 to meet Win64 ABI requirement. |
| 4333 | # |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4334 | # int ${PREFIX}_set_encrypt_key(const unsigned char *inp, |
| 4335 | # int bits, AES_KEY * const key); |
| 4336 | # |
| 4337 | # input: $inp user-supplied key |
| 4338 | # $bits $inp length in bits |
| 4339 | # $key pointer to key schedule |
| 4340 | # output: %eax 0 denoting success, -1 or -2 - failure (see C) |
| 4341 | # $bits rounds-1 (used in aesni_set_decrypt_key) |
| 4342 | # *$key key schedule |
| 4343 | # $key pointer to key schedule (used in |
| 4344 | # aesni_set_decrypt_key) |
| 4345 | # |
| 4346 | # Subroutine is frame-less, which means that only volatile registers |
| 4347 | # are used. Note that it's declared "abi-omnipotent", which means that |
| 4348 | # amount of volatile registers is smaller on Windows. |
| 4349 | # |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4350 | $code.=<<___; |
| 4351 | .globl ${PREFIX}_set_encrypt_key |
| 4352 | .type ${PREFIX}_set_encrypt_key,\@abi-omnipotent |
| 4353 | .align 16 |
| 4354 | ${PREFIX}_set_encrypt_key: |
| 4355 | __aesni_set_encrypt_key: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4356 | .cfi_startproc |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 4357 | #ifndef NDEBUG |
| 4358 | #ifndef BORINGSSL_FIPS |
| 4359 | movb \$1,BORINGSSL_function_hit+3(%rip) |
| 4360 | #endif |
| 4361 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4362 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4363 | .cfi_adjust_cfa_offset 8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4364 | mov \$-1,%rax |
| 4365 | test $inp,$inp |
| 4366 | jz .Lenc_key_ret |
| 4367 | test $key,$key |
| 4368 | jz .Lenc_key_ret |
| 4369 | |
| 4370 | movups ($inp),%xmm0 # pull first 128 bits of *userKey |
| 4371 | xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 |
Robert Sloan | 2424d84 | 2017-05-01 07:46:28 -0700 | [diff] [blame] | 4372 | leaq OPENSSL_ia32cap_P(%rip),%r10 |
Robert Sloan | 572a4e2 | 2017-04-17 10:52:19 -0700 | [diff] [blame] | 4373 | movl 4(%r10),%r10d |
| 4374 | and \$`1<<28|1<<11`,%r10d # AVX and XOP bits |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4375 | lea 16($key),%rax # %rax is used as modifiable copy of $key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4376 | cmp \$256,$bits |
| 4377 | je .L14rounds |
| 4378 | cmp \$192,$bits |
| 4379 | je .L12rounds |
| 4380 | cmp \$128,$bits |
| 4381 | jne .Lbad_keybits |
| 4382 | |
| 4383 | .L10rounds: |
| 4384 | mov \$9,$bits # 10 rounds for 128-bit key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4385 | cmp \$`1<<28`,%r10d # AVX, bit no XOP |
| 4386 | je .L10rounds_alt |
| 4387 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4388 | $movkey %xmm0,($key) # round 0 |
| 4389 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 |
| 4390 | call .Lkey_expansion_128_cold |
| 4391 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 |
| 4392 | call .Lkey_expansion_128 |
| 4393 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 |
| 4394 | call .Lkey_expansion_128 |
| 4395 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 |
| 4396 | call .Lkey_expansion_128 |
| 4397 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 |
| 4398 | call .Lkey_expansion_128 |
| 4399 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 |
| 4400 | call .Lkey_expansion_128 |
| 4401 | aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 |
| 4402 | call .Lkey_expansion_128 |
| 4403 | aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 |
| 4404 | call .Lkey_expansion_128 |
| 4405 | aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 |
| 4406 | call .Lkey_expansion_128 |
| 4407 | aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 |
| 4408 | call .Lkey_expansion_128 |
| 4409 | $movkey %xmm0,(%rax) |
| 4410 | mov $bits,80(%rax) # 240(%rdx) |
| 4411 | xor %eax,%eax |
| 4412 | jmp .Lenc_key_ret |
| 4413 | |
| 4414 | .align 16 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4415 | .L10rounds_alt: |
| 4416 | movdqa .Lkey_rotate(%rip),%xmm5 |
| 4417 | mov \$8,%r10d |
| 4418 | movdqa .Lkey_rcon1(%rip),%xmm4 |
| 4419 | movdqa %xmm0,%xmm2 |
| 4420 | movdqu %xmm0,($key) |
| 4421 | jmp .Loop_key128 |
| 4422 | |
| 4423 | .align 16 |
| 4424 | .Loop_key128: |
| 4425 | pshufb %xmm5,%xmm0 |
| 4426 | aesenclast %xmm4,%xmm0 |
| 4427 | pslld \$1,%xmm4 |
| 4428 | lea 16(%rax),%rax |
| 4429 | |
| 4430 | movdqa %xmm2,%xmm3 |
| 4431 | pslldq \$4,%xmm2 |
| 4432 | pxor %xmm2,%xmm3 |
| 4433 | pslldq \$4,%xmm2 |
| 4434 | pxor %xmm2,%xmm3 |
| 4435 | pslldq \$4,%xmm2 |
| 4436 | pxor %xmm3,%xmm2 |
| 4437 | |
| 4438 | pxor %xmm2,%xmm0 |
| 4439 | movdqu %xmm0,-16(%rax) |
| 4440 | movdqa %xmm0,%xmm2 |
| 4441 | |
| 4442 | dec %r10d |
| 4443 | jnz .Loop_key128 |
| 4444 | |
| 4445 | movdqa .Lkey_rcon1b(%rip),%xmm4 |
| 4446 | |
| 4447 | pshufb %xmm5,%xmm0 |
| 4448 | aesenclast %xmm4,%xmm0 |
| 4449 | pslld \$1,%xmm4 |
| 4450 | |
| 4451 | movdqa %xmm2,%xmm3 |
| 4452 | pslldq \$4,%xmm2 |
| 4453 | pxor %xmm2,%xmm3 |
| 4454 | pslldq \$4,%xmm2 |
| 4455 | pxor %xmm2,%xmm3 |
| 4456 | pslldq \$4,%xmm2 |
| 4457 | pxor %xmm3,%xmm2 |
| 4458 | |
| 4459 | pxor %xmm2,%xmm0 |
| 4460 | movdqu %xmm0,(%rax) |
| 4461 | |
| 4462 | movdqa %xmm0,%xmm2 |
| 4463 | pshufb %xmm5,%xmm0 |
| 4464 | aesenclast %xmm4,%xmm0 |
| 4465 | |
| 4466 | movdqa %xmm2,%xmm3 |
| 4467 | pslldq \$4,%xmm2 |
| 4468 | pxor %xmm2,%xmm3 |
| 4469 | pslldq \$4,%xmm2 |
| 4470 | pxor %xmm2,%xmm3 |
| 4471 | pslldq \$4,%xmm2 |
| 4472 | pxor %xmm3,%xmm2 |
| 4473 | |
| 4474 | pxor %xmm2,%xmm0 |
| 4475 | movdqu %xmm0,16(%rax) |
| 4476 | |
| 4477 | mov $bits,96(%rax) # 240($key) |
| 4478 | xor %eax,%eax |
| 4479 | jmp .Lenc_key_ret |
| 4480 | |
| 4481 | .align 16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4482 | .L12rounds: |
| 4483 | movq 16($inp),%xmm2 # remaining 1/3 of *userKey |
| 4484 | mov \$11,$bits # 12 rounds for 192 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4485 | cmp \$`1<<28`,%r10d # AVX, but no XOP |
| 4486 | je .L12rounds_alt |
| 4487 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4488 | $movkey %xmm0,($key) # round 0 |
| 4489 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 |
| 4490 | call .Lkey_expansion_192a_cold |
| 4491 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 |
| 4492 | call .Lkey_expansion_192b |
| 4493 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 |
| 4494 | call .Lkey_expansion_192a |
| 4495 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 |
| 4496 | call .Lkey_expansion_192b |
| 4497 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 |
| 4498 | call .Lkey_expansion_192a |
| 4499 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 |
| 4500 | call .Lkey_expansion_192b |
| 4501 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 |
| 4502 | call .Lkey_expansion_192a |
| 4503 | aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 |
| 4504 | call .Lkey_expansion_192b |
| 4505 | $movkey %xmm0,(%rax) |
| 4506 | mov $bits,48(%rax) # 240(%rdx) |
| 4507 | xor %rax, %rax |
| 4508 | jmp .Lenc_key_ret |
| 4509 | |
| 4510 | .align 16 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4511 | .L12rounds_alt: |
| 4512 | movdqa .Lkey_rotate192(%rip),%xmm5 |
| 4513 | movdqa .Lkey_rcon1(%rip),%xmm4 |
| 4514 | mov \$8,%r10d |
| 4515 | movdqu %xmm0,($key) |
| 4516 | jmp .Loop_key192 |
| 4517 | |
| 4518 | .align 16 |
| 4519 | .Loop_key192: |
| 4520 | movq %xmm2,0(%rax) |
| 4521 | movdqa %xmm2,%xmm1 |
| 4522 | pshufb %xmm5,%xmm2 |
| 4523 | aesenclast %xmm4,%xmm2 |
| 4524 | pslld \$1, %xmm4 |
| 4525 | lea 24(%rax),%rax |
| 4526 | |
| 4527 | movdqa %xmm0,%xmm3 |
| 4528 | pslldq \$4,%xmm0 |
| 4529 | pxor %xmm0,%xmm3 |
| 4530 | pslldq \$4,%xmm0 |
| 4531 | pxor %xmm0,%xmm3 |
| 4532 | pslldq \$4,%xmm0 |
| 4533 | pxor %xmm3,%xmm0 |
| 4534 | |
| 4535 | pshufd \$0xff,%xmm0,%xmm3 |
| 4536 | pxor %xmm1,%xmm3 |
| 4537 | pslldq \$4,%xmm1 |
| 4538 | pxor %xmm1,%xmm3 |
| 4539 | |
| 4540 | pxor %xmm2,%xmm0 |
| 4541 | pxor %xmm3,%xmm2 |
| 4542 | movdqu %xmm0,-16(%rax) |
| 4543 | |
| 4544 | dec %r10d |
| 4545 | jnz .Loop_key192 |
| 4546 | |
| 4547 | mov $bits,32(%rax) # 240($key) |
| 4548 | xor %eax,%eax |
| 4549 | jmp .Lenc_key_ret |
| 4550 | |
| 4551 | .align 16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4552 | .L14rounds: |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4553 | movups 16($inp),%xmm2 # remaining half of *userKey |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4554 | mov \$13,$bits # 14 rounds for 256 |
| 4555 | lea 16(%rax),%rax |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4556 | cmp \$`1<<28`,%r10d # AVX, but no XOP |
| 4557 | je .L14rounds_alt |
| 4558 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4559 | $movkey %xmm0,($key) # round 0 |
| 4560 | $movkey %xmm2,16($key) # round 1 |
| 4561 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 |
| 4562 | call .Lkey_expansion_256a_cold |
| 4563 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 |
| 4564 | call .Lkey_expansion_256b |
| 4565 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 |
| 4566 | call .Lkey_expansion_256a |
| 4567 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 |
| 4568 | call .Lkey_expansion_256b |
| 4569 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 |
| 4570 | call .Lkey_expansion_256a |
| 4571 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 |
| 4572 | call .Lkey_expansion_256b |
| 4573 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 |
| 4574 | call .Lkey_expansion_256a |
| 4575 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 |
| 4576 | call .Lkey_expansion_256b |
| 4577 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 |
| 4578 | call .Lkey_expansion_256a |
| 4579 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 |
| 4580 | call .Lkey_expansion_256b |
| 4581 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 |
| 4582 | call .Lkey_expansion_256a |
| 4583 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 |
| 4584 | call .Lkey_expansion_256b |
| 4585 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 |
| 4586 | call .Lkey_expansion_256a |
| 4587 | $movkey %xmm0,(%rax) |
| 4588 | mov $bits,16(%rax) # 240(%rdx) |
| 4589 | xor %rax,%rax |
| 4590 | jmp .Lenc_key_ret |
| 4591 | |
| 4592 | .align 16 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4593 | .L14rounds_alt: |
| 4594 | movdqa .Lkey_rotate(%rip),%xmm5 |
| 4595 | movdqa .Lkey_rcon1(%rip),%xmm4 |
| 4596 | mov \$7,%r10d |
| 4597 | movdqu %xmm0,0($key) |
| 4598 | movdqa %xmm2,%xmm1 |
| 4599 | movdqu %xmm2,16($key) |
| 4600 | jmp .Loop_key256 |
| 4601 | |
| 4602 | .align 16 |
| 4603 | .Loop_key256: |
| 4604 | pshufb %xmm5,%xmm2 |
| 4605 | aesenclast %xmm4,%xmm2 |
| 4606 | |
| 4607 | movdqa %xmm0,%xmm3 |
| 4608 | pslldq \$4,%xmm0 |
| 4609 | pxor %xmm0,%xmm3 |
| 4610 | pslldq \$4,%xmm0 |
| 4611 | pxor %xmm0,%xmm3 |
| 4612 | pslldq \$4,%xmm0 |
| 4613 | pxor %xmm3,%xmm0 |
| 4614 | pslld \$1,%xmm4 |
| 4615 | |
| 4616 | pxor %xmm2,%xmm0 |
| 4617 | movdqu %xmm0,(%rax) |
| 4618 | |
| 4619 | dec %r10d |
| 4620 | jz .Ldone_key256 |
| 4621 | |
| 4622 | pshufd \$0xff,%xmm0,%xmm2 |
| 4623 | pxor %xmm3,%xmm3 |
| 4624 | aesenclast %xmm3,%xmm2 |
| 4625 | |
| 4626 | movdqa %xmm1,%xmm3 |
| 4627 | pslldq \$4,%xmm1 |
| 4628 | pxor %xmm1,%xmm3 |
| 4629 | pslldq \$4,%xmm1 |
| 4630 | pxor %xmm1,%xmm3 |
| 4631 | pslldq \$4,%xmm1 |
| 4632 | pxor %xmm3,%xmm1 |
| 4633 | |
| 4634 | pxor %xmm1,%xmm2 |
| 4635 | movdqu %xmm2,16(%rax) |
| 4636 | lea 32(%rax),%rax |
| 4637 | movdqa %xmm2,%xmm1 |
| 4638 | |
| 4639 | jmp .Loop_key256 |
| 4640 | |
| 4641 | .Ldone_key256: |
| 4642 | mov $bits,16(%rax) # 240($key) |
| 4643 | xor %eax,%eax |
| 4644 | jmp .Lenc_key_ret |
| 4645 | |
| 4646 | .align 16 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4647 | .Lbad_keybits: |
| 4648 | mov \$-2,%rax |
| 4649 | .Lenc_key_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4650 | pxor %xmm0,%xmm0 |
| 4651 | pxor %xmm1,%xmm1 |
| 4652 | pxor %xmm2,%xmm2 |
| 4653 | pxor %xmm3,%xmm3 |
| 4654 | pxor %xmm4,%xmm4 |
| 4655 | pxor %xmm5,%xmm5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4656 | add \$8,%rsp |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4657 | .cfi_adjust_cfa_offset -8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4658 | ret |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame] | 4659 | .cfi_endproc |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4660 | .LSEH_end_set_encrypt_key: |
| 4661 | |
| 4662 | .align 16 |
| 4663 | .Lkey_expansion_128: |
| 4664 | $movkey %xmm0,(%rax) |
| 4665 | lea 16(%rax),%rax |
| 4666 | .Lkey_expansion_128_cold: |
| 4667 | shufps \$0b00010000,%xmm0,%xmm4 |
| 4668 | xorps %xmm4, %xmm0 |
| 4669 | shufps \$0b10001100,%xmm0,%xmm4 |
| 4670 | xorps %xmm4, %xmm0 |
| 4671 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 4672 | xorps %xmm1,%xmm0 |
| 4673 | ret |
| 4674 | |
| 4675 | .align 16 |
| 4676 | .Lkey_expansion_192a: |
| 4677 | $movkey %xmm0,(%rax) |
| 4678 | lea 16(%rax),%rax |
| 4679 | .Lkey_expansion_192a_cold: |
| 4680 | movaps %xmm2, %xmm5 |
| 4681 | .Lkey_expansion_192b_warm: |
| 4682 | shufps \$0b00010000,%xmm0,%xmm4 |
| 4683 | movdqa %xmm2,%xmm3 |
| 4684 | xorps %xmm4,%xmm0 |
| 4685 | shufps \$0b10001100,%xmm0,%xmm4 |
| 4686 | pslldq \$4,%xmm3 |
| 4687 | xorps %xmm4,%xmm0 |
| 4688 | pshufd \$0b01010101,%xmm1,%xmm1 # critical path |
| 4689 | pxor %xmm3,%xmm2 |
| 4690 | pxor %xmm1,%xmm0 |
| 4691 | pshufd \$0b11111111,%xmm0,%xmm3 |
| 4692 | pxor %xmm3,%xmm2 |
| 4693 | ret |
| 4694 | |
| 4695 | .align 16 |
| 4696 | .Lkey_expansion_192b: |
| 4697 | movaps %xmm0,%xmm3 |
| 4698 | shufps \$0b01000100,%xmm0,%xmm5 |
| 4699 | $movkey %xmm5,(%rax) |
| 4700 | shufps \$0b01001110,%xmm2,%xmm3 |
| 4701 | $movkey %xmm3,16(%rax) |
| 4702 | lea 32(%rax),%rax |
| 4703 | jmp .Lkey_expansion_192b_warm |
| 4704 | |
| 4705 | .align 16 |
| 4706 | .Lkey_expansion_256a: |
| 4707 | $movkey %xmm2,(%rax) |
| 4708 | lea 16(%rax),%rax |
| 4709 | .Lkey_expansion_256a_cold: |
| 4710 | shufps \$0b00010000,%xmm0,%xmm4 |
| 4711 | xorps %xmm4,%xmm0 |
| 4712 | shufps \$0b10001100,%xmm0,%xmm4 |
| 4713 | xorps %xmm4,%xmm0 |
| 4714 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 4715 | xorps %xmm1,%xmm0 |
| 4716 | ret |
| 4717 | |
| 4718 | .align 16 |
| 4719 | .Lkey_expansion_256b: |
| 4720 | $movkey %xmm0,(%rax) |
| 4721 | lea 16(%rax),%rax |
| 4722 | |
| 4723 | shufps \$0b00010000,%xmm2,%xmm4 |
| 4724 | xorps %xmm4,%xmm2 |
| 4725 | shufps \$0b10001100,%xmm2,%xmm4 |
| 4726 | xorps %xmm4,%xmm2 |
| 4727 | shufps \$0b10101010,%xmm1,%xmm1 # critical path |
| 4728 | xorps %xmm1,%xmm2 |
| 4729 | ret |
| 4730 | .size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key |
| 4731 | .size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key |
| 4732 | ___ |
| 4733 | } |
| 4734 | |
| 4735 | $code.=<<___; |
| 4736 | .align 64 |
| 4737 | .Lbswap_mask: |
| 4738 | .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 |
| 4739 | .Lincrement32: |
| 4740 | .long 6,6,6,0 |
| 4741 | .Lincrement64: |
| 4742 | .long 1,0,0,0 |
| 4743 | .Lxts_magic: |
| 4744 | .long 0x87,0,1,0 |
| 4745 | .Lincrement1: |
| 4746 | .byte 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4747 | .Lkey_rotate: |
| 4748 | .long 0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d |
| 4749 | .Lkey_rotate192: |
| 4750 | .long 0x04070605,0x04070605,0x04070605,0x04070605 |
| 4751 | .Lkey_rcon1: |
| 4752 | .long 1,1,1,1 |
| 4753 | .Lkey_rcon1b: |
| 4754 | .long 0x1b,0x1b,0x1b,0x1b |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4755 | |
| 4756 | .asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" |
| 4757 | .align 64 |
| 4758 | ___ |
| 4759 | |
| 4760 | # EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, |
| 4761 | # CONTEXT *context,DISPATCHER_CONTEXT *disp) |
| 4762 | if ($win64) { |
| 4763 | $rec="%rcx"; |
| 4764 | $frame="%rdx"; |
| 4765 | $context="%r8"; |
| 4766 | $disp="%r9"; |
| 4767 | |
| 4768 | $code.=<<___; |
| 4769 | .extern __imp_RtlVirtualUnwind |
| 4770 | ___ |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 4771 | $code.=<<___ if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4772 | .type ecb_ccm64_se_handler,\@abi-omnipotent |
| 4773 | .align 16 |
| 4774 | ecb_ccm64_se_handler: |
| 4775 | push %rsi |
| 4776 | push %rdi |
| 4777 | push %rbx |
| 4778 | push %rbp |
| 4779 | push %r12 |
| 4780 | push %r13 |
| 4781 | push %r14 |
| 4782 | push %r15 |
| 4783 | pushfq |
| 4784 | sub \$64,%rsp |
| 4785 | |
| 4786 | mov 120($context),%rax # pull context->Rax |
| 4787 | mov 248($context),%rbx # pull context->Rip |
| 4788 | |
| 4789 | mov 8($disp),%rsi # disp->ImageBase |
| 4790 | mov 56($disp),%r11 # disp->HandlerData |
| 4791 | |
| 4792 | mov 0(%r11),%r10d # HandlerData[0] |
| 4793 | lea (%rsi,%r10),%r10 # prologue label |
| 4794 | cmp %r10,%rbx # context->Rip<prologue label |
| 4795 | jb .Lcommon_seh_tail |
| 4796 | |
| 4797 | mov 152($context),%rax # pull context->Rsp |
| 4798 | |
| 4799 | mov 4(%r11),%r10d # HandlerData[1] |
| 4800 | lea (%rsi,%r10),%r10 # epilogue label |
| 4801 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 4802 | jae .Lcommon_seh_tail |
| 4803 | |
| 4804 | lea 0(%rax),%rsi # %xmm save area |
| 4805 | lea 512($context),%rdi # &context.Xmm6 |
| 4806 | mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) |
| 4807 | .long 0xa548f3fc # cld; rep movsq |
| 4808 | lea 0x58(%rax),%rax # adjust stack pointer |
| 4809 | |
| 4810 | jmp .Lcommon_seh_tail |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 4811 | .size ${PREFIX}_ccm64_se_handler,.-${PREFIX}_ccm64_se_handler |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4812 | |
| 4813 | .type ctr_xts_se_handler,\@abi-omnipotent |
| 4814 | .align 16 |
| 4815 | ctr_xts_se_handler: |
| 4816 | push %rsi |
| 4817 | push %rdi |
| 4818 | push %rbx |
| 4819 | push %rbp |
| 4820 | push %r12 |
| 4821 | push %r13 |
| 4822 | push %r14 |
| 4823 | push %r15 |
| 4824 | pushfq |
| 4825 | sub \$64,%rsp |
| 4826 | |
| 4827 | mov 120($context),%rax # pull context->Rax |
| 4828 | mov 248($context),%rbx # pull context->Rip |
| 4829 | |
| 4830 | mov 8($disp),%rsi # disp->ImageBase |
| 4831 | mov 56($disp),%r11 # disp->HandlerData |
| 4832 | |
| 4833 | mov 0(%r11),%r10d # HandlerData[0] |
| 4834 | lea (%rsi,%r10),%r10 # prologue lable |
| 4835 | cmp %r10,%rbx # context->Rip<prologue label |
| 4836 | jb .Lcommon_seh_tail |
| 4837 | |
| 4838 | mov 152($context),%rax # pull context->Rsp |
| 4839 | |
| 4840 | mov 4(%r11),%r10d # HandlerData[1] |
| 4841 | lea (%rsi,%r10),%r10 # epilogue label |
| 4842 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 4843 | jae .Lcommon_seh_tail |
| 4844 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4845 | mov 208($context),%rax # pull context->R11 |
| 4846 | |
| 4847 | lea -0xa8(%rax),%rsi # %xmm save area |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4848 | lea 512($context),%rdi # & context.Xmm6 |
| 4849 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 4850 | .long 0xa548f3fc # cld; rep movsq |
| 4851 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4852 | mov -8(%rax),%rbp # restore saved %rbp |
| 4853 | mov %rbp,160($context) # restore context->Rbp |
| 4854 | jmp .Lcommon_seh_tail |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4855 | .size ctr_xts_se_handler,.-ctr_xts_se_handler |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4856 | |
Robert Sloan | 4c22c5f | 2019-03-01 15:53:37 -0800 | [diff] [blame] | 4857 | ___ |
| 4858 | # BoringSSL omits the OCB functions. |
| 4859 | $code.=<<___ if (0); |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4860 | .type ocb_se_handler,\@abi-omnipotent |
| 4861 | .align 16 |
| 4862 | ocb_se_handler: |
| 4863 | push %rsi |
| 4864 | push %rdi |
| 4865 | push %rbx |
| 4866 | push %rbp |
| 4867 | push %r12 |
| 4868 | push %r13 |
| 4869 | push %r14 |
| 4870 | push %r15 |
| 4871 | pushfq |
| 4872 | sub \$64,%rsp |
| 4873 | |
| 4874 | mov 120($context),%rax # pull context->Rax |
| 4875 | mov 248($context),%rbx # pull context->Rip |
| 4876 | |
| 4877 | mov 8($disp),%rsi # disp->ImageBase |
| 4878 | mov 56($disp),%r11 # disp->HandlerData |
| 4879 | |
| 4880 | mov 0(%r11),%r10d # HandlerData[0] |
| 4881 | lea (%rsi,%r10),%r10 # prologue lable |
| 4882 | cmp %r10,%rbx # context->Rip<prologue label |
| 4883 | jb .Lcommon_seh_tail |
| 4884 | |
| 4885 | mov 4(%r11),%r10d # HandlerData[1] |
| 4886 | lea (%rsi,%r10),%r10 # epilogue label |
| 4887 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 4888 | jae .Lcommon_seh_tail |
| 4889 | |
| 4890 | mov 8(%r11),%r10d # HandlerData[2] |
| 4891 | lea (%rsi,%r10),%r10 |
| 4892 | cmp %r10,%rbx # context->Rip>=pop label |
| 4893 | jae .Locb_no_xmm |
| 4894 | |
| 4895 | mov 152($context),%rax # pull context->Rsp |
| 4896 | |
| 4897 | lea (%rax),%rsi # %xmm save area |
| 4898 | lea 512($context),%rdi # & context.Xmm6 |
| 4899 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 4900 | .long 0xa548f3fc # cld; rep movsq |
| 4901 | lea 0xa0+0x28(%rax),%rax |
| 4902 | |
| 4903 | .Locb_no_xmm: |
| 4904 | mov -8(%rax),%rbx |
| 4905 | mov -16(%rax),%rbp |
| 4906 | mov -24(%rax),%r12 |
| 4907 | mov -32(%rax),%r13 |
| 4908 | mov -40(%rax),%r14 |
| 4909 | |
| 4910 | mov %rbx,144($context) # restore context->Rbx |
| 4911 | mov %rbp,160($context) # restore context->Rbp |
| 4912 | mov %r12,216($context) # restore context->R12 |
| 4913 | mov %r13,224($context) # restore context->R13 |
| 4914 | mov %r14,232($context) # restore context->R14 |
| 4915 | |
| 4916 | jmp .Lcommon_seh_tail |
| 4917 | .size ocb_se_handler,.-ocb_se_handler |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4918 | ___ |
| 4919 | $code.=<<___; |
| 4920 | .type cbc_se_handler,\@abi-omnipotent |
| 4921 | .align 16 |
| 4922 | cbc_se_handler: |
| 4923 | push %rsi |
| 4924 | push %rdi |
| 4925 | push %rbx |
| 4926 | push %rbp |
| 4927 | push %r12 |
| 4928 | push %r13 |
| 4929 | push %r14 |
| 4930 | push %r15 |
| 4931 | pushfq |
| 4932 | sub \$64,%rsp |
| 4933 | |
| 4934 | mov 152($context),%rax # pull context->Rsp |
| 4935 | mov 248($context),%rbx # pull context->Rip |
| 4936 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 4937 | lea .Lcbc_decrypt_bulk(%rip),%r10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4938 | cmp %r10,%rbx # context->Rip<"prologue" label |
| 4939 | jb .Lcommon_seh_tail |
| 4940 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4941 | mov 120($context),%rax # pull context->Rax |
| 4942 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4943 | lea .Lcbc_decrypt_body(%rip),%r10 |
| 4944 | cmp %r10,%rbx # context->Rip<cbc_decrypt_body |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4945 | jb .Lcommon_seh_tail |
| 4946 | |
| 4947 | mov 152($context),%rax # pull context->Rsp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4948 | |
| 4949 | lea .Lcbc_ret(%rip),%r10 |
| 4950 | cmp %r10,%rbx # context->Rip>="epilogue" label |
| 4951 | jae .Lcommon_seh_tail |
| 4952 | |
| 4953 | lea 16(%rax),%rsi # %xmm save area |
| 4954 | lea 512($context),%rdi # &context.Xmm6 |
| 4955 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 4956 | .long 0xa548f3fc # cld; rep movsq |
| 4957 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4958 | mov 208($context),%rax # pull context->R11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4959 | |
Robert Sloan | a94fe05 | 2017-02-21 08:49:28 -0800 | [diff] [blame] | 4960 | mov -8(%rax),%rbp # restore saved %rbp |
| 4961 | mov %rbp,160($context) # restore context->Rbp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 4962 | |
| 4963 | .Lcommon_seh_tail: |
| 4964 | mov 8(%rax),%rdi |
| 4965 | mov 16(%rax),%rsi |
| 4966 | mov %rax,152($context) # restore context->Rsp |
| 4967 | mov %rsi,168($context) # restore context->Rsi |
| 4968 | mov %rdi,176($context) # restore context->Rdi |
| 4969 | |
| 4970 | mov 40($disp),%rdi # disp->ContextRecord |
| 4971 | mov $context,%rsi # context |
| 4972 | mov \$154,%ecx # sizeof(CONTEXT) |
| 4973 | .long 0xa548f3fc # cld; rep movsq |
| 4974 | |
| 4975 | mov $disp,%rsi |
| 4976 | xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER |
| 4977 | mov 8(%rsi),%rdx # arg2, disp->ImageBase |
| 4978 | mov 0(%rsi),%r8 # arg3, disp->ControlPc |
| 4979 | mov 16(%rsi),%r9 # arg4, disp->FunctionEntry |
| 4980 | mov 40(%rsi),%r10 # disp->ContextRecord |
| 4981 | lea 56(%rsi),%r11 # &disp->HandlerData |
| 4982 | lea 24(%rsi),%r12 # &disp->EstablisherFrame |
| 4983 | mov %r10,32(%rsp) # arg5 |
| 4984 | mov %r11,40(%rsp) # arg6 |
| 4985 | mov %r12,48(%rsp) # arg7 |
| 4986 | mov %rcx,56(%rsp) # arg8, (NULL) |
| 4987 | call *__imp_RtlVirtualUnwind(%rip) |
| 4988 | |
| 4989 | mov \$1,%eax # ExceptionContinueSearch |
| 4990 | add \$64,%rsp |
| 4991 | popfq |
| 4992 | pop %r15 |
| 4993 | pop %r14 |
| 4994 | pop %r13 |
| 4995 | pop %r12 |
| 4996 | pop %rbp |
| 4997 | pop %rbx |
| 4998 | pop %rdi |
| 4999 | pop %rsi |
| 5000 | ret |
| 5001 | .size cbc_se_handler,.-cbc_se_handler |
| 5002 | |
| 5003 | .section .pdata |
| 5004 | .align 4 |
| 5005 | ___ |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 5006 | $code.=<<___ if ($PREFIX eq "aes_hw"); |
| 5007 | .rva .LSEH_begin_${PREFIX}_ecb_encrypt |
| 5008 | .rva .LSEH_end_${PREFIX}_ecb_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5009 | .rva .LSEH_info_ecb |
| 5010 | |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 5011 | .rva .LSEH_begin_${PREFIX}_ctr32_encrypt_blocks |
| 5012 | .rva .LSEH_end_${PREFIX}_ctr32_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5013 | .rva .LSEH_info_ctr32 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5014 | ___ |
| 5015 | $code.=<<___; |
| 5016 | .rva .LSEH_begin_${PREFIX}_cbc_encrypt |
| 5017 | .rva .LSEH_end_${PREFIX}_cbc_encrypt |
| 5018 | .rva .LSEH_info_cbc |
| 5019 | |
| 5020 | .rva ${PREFIX}_set_decrypt_key |
| 5021 | .rva .LSEH_end_set_decrypt_key |
| 5022 | .rva .LSEH_info_key |
| 5023 | |
| 5024 | .rva ${PREFIX}_set_encrypt_key |
| 5025 | .rva .LSEH_end_set_encrypt_key |
| 5026 | .rva .LSEH_info_key |
| 5027 | .section .xdata |
| 5028 | .align 8 |
| 5029 | ___ |
Adam Vartanian | bfcf3a7 | 2018-08-10 14:55:24 +0100 | [diff] [blame] | 5030 | $code.=<<___ if ($PREFIX eq "aes_hw"); |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5031 | .LSEH_info_ecb: |
| 5032 | .byte 9,0,0,0 |
| 5033 | .rva ecb_ccm64_se_handler |
| 5034 | .rva .Lecb_enc_body,.Lecb_enc_ret # HandlerData[] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5035 | .LSEH_info_ctr32: |
| 5036 | .byte 9,0,0,0 |
| 5037 | .rva ctr_xts_se_handler |
| 5038 | .rva .Lctr32_body,.Lctr32_epilogue # HandlerData[] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 5039 | ___ |
| 5040 | $code.=<<___; |
| 5041 | .LSEH_info_cbc: |
| 5042 | .byte 9,0,0,0 |
| 5043 | .rva cbc_se_handler |
| 5044 | .LSEH_info_key: |
| 5045 | .byte 0x01,0x04,0x01,0x00 |
| 5046 | .byte 0x04,0x02,0x00,0x00 # sub rsp,8 |
| 5047 | ___ |
| 5048 | } |
| 5049 | |
| 5050 | sub rex { |
| 5051 | local *opcode=shift; |
| 5052 | my ($dst,$src)=@_; |
| 5053 | my $rex=0; |
| 5054 | |
| 5055 | $rex|=0x04 if($dst>=8); |
| 5056 | $rex|=0x01 if($src>=8); |
| 5057 | push @opcode,$rex|0x40 if($rex); |
| 5058 | } |
| 5059 | |
| 5060 | sub aesni { |
| 5061 | my $line=shift; |
| 5062 | my @opcode=(0x66); |
| 5063 | |
| 5064 | if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 5065 | rex(\@opcode,$4,$3); |
| 5066 | push @opcode,0x0f,0x3a,0xdf; |
| 5067 | push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M |
| 5068 | my $c=$2; |
| 5069 | push @opcode,$c=~/^0/?oct($c):$c; |
| 5070 | return ".byte\t".join(',',@opcode); |
| 5071 | } |
| 5072 | elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 5073 | my %opcodelet = ( |
| 5074 | "aesimc" => 0xdb, |
| 5075 | "aesenc" => 0xdc, "aesenclast" => 0xdd, |
| 5076 | "aesdec" => 0xde, "aesdeclast" => 0xdf |
| 5077 | ); |
| 5078 | return undef if (!defined($opcodelet{$1})); |
| 5079 | rex(\@opcode,$3,$2); |
| 5080 | push @opcode,0x0f,0x38,$opcodelet{$1}; |
| 5081 | push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M |
| 5082 | return ".byte\t".join(',',@opcode); |
| 5083 | } |
| 5084 | elsif ($line=~/(aes[a-z]+)\s+([0x1-9a-fA-F]*)\(%rsp\),\s*%xmm([0-9]+)/) { |
| 5085 | my %opcodelet = ( |
| 5086 | "aesenc" => 0xdc, "aesenclast" => 0xdd, |
| 5087 | "aesdec" => 0xde, "aesdeclast" => 0xdf |
| 5088 | ); |
| 5089 | return undef if (!defined($opcodelet{$1})); |
| 5090 | my $off = $2; |
| 5091 | push @opcode,0x44 if ($3>=8); |
| 5092 | push @opcode,0x0f,0x38,$opcodelet{$1}; |
| 5093 | push @opcode,0x44|(($3&7)<<3),0x24; # ModR/M |
| 5094 | push @opcode,($off=~/^0/?oct($off):$off)&0xff; |
| 5095 | return ".byte\t".join(',',@opcode); |
| 5096 | } |
| 5097 | return $line; |
| 5098 | } |
| 5099 | |
| 5100 | sub movbe { |
| 5101 | ".byte 0x0f,0x38,0xf1,0x44,0x24,".shift; |
| 5102 | } |
| 5103 | |
| 5104 | $code =~ s/\`([^\`]*)\`/eval($1)/gem; |
| 5105 | $code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; |
| 5106 | #$code =~ s/\bmovbe\s+%eax/bswap %eax; mov %eax/gm; # debugging artefact |
| 5107 | $code =~ s/\bmovbe\s+%eax,\s*([0-9]+)\(%rsp\)/movbe($1)/gem; |
| 5108 | |
| 5109 | print $code; |
| 5110 | |
Srinivas Paladugu | dd42a61 | 2019-08-09 19:30:39 +0000 | [diff] [blame^] | 5111 | close STDOUT; |