Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 1 | #if defined(__arm__) |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 2 | @ Copyright 2012-2016 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 | @ Specific modes and adaptation for Linux kernel by Ard Biesheuvel |
| 17 | @ <ard.biesheuvel@linaro.org>. Permission to use under GPL terms is |
| 18 | @ granted. |
| 19 | @ ==================================================================== |
| 20 | |
| 21 | @ Bit-sliced AES for ARM NEON |
| 22 | @ |
| 23 | @ February 2012. |
| 24 | @ |
| 25 | @ This implementation is direct adaptation of bsaes-x86_64 module for |
| 26 | @ ARM NEON. Except that this module is endian-neutral [in sense that |
| 27 | @ it can be compiled for either endianness] by courtesy of vld1.8's |
| 28 | @ neutrality. Initial version doesn't implement interface to OpenSSL, |
| 29 | @ only low-level primitives and unsupported entry points, just enough |
| 30 | @ to collect performance results, which for Cortex-A8 core are: |
| 31 | @ |
| 32 | @ encrypt 19.5 cycles per byte processed with 128-bit key |
| 33 | @ decrypt 22.1 cycles per byte processed with 128-bit key |
| 34 | @ key conv. 440 cycles per 128-bit key/0.18 of 8x block |
| 35 | @ |
| 36 | @ Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7, |
| 37 | @ which is [much] worse than anticipated (for further details see |
| 38 | @ http://www.openssl.org/~appro/Snapdragon-S4.html). |
| 39 | @ |
| 40 | @ Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code |
| 41 | @ manages in 20.0 cycles]. |
| 42 | @ |
| 43 | @ When comparing to x86_64 results keep in mind that NEON unit is |
| 44 | @ [mostly] single-issue and thus can't [fully] benefit from |
| 45 | @ instruction-level parallelism. And when comparing to aes-armv4 |
| 46 | @ results keep in mind key schedule conversion overhead (see |
| 47 | @ bsaes-x86_64.pl for further details)... |
| 48 | @ |
| 49 | @ <appro@openssl.org> |
| 50 | |
| 51 | @ April-August 2013 |
| 52 | @ |
| 53 | @ Add CBC, CTR and XTS subroutines, adapt for kernel use. |
| 54 | @ |
| 55 | @ <ard.biesheuvel@linaro.org> |
| 56 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 57 | #ifndef __KERNEL__ |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 58 | # include <openssl/arm_arch.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 59 | |
| 60 | # define VFP_ABI_PUSH vstmdb sp!,{d8-d15} |
| 61 | # define VFP_ABI_POP vldmia sp!,{d8-d15} |
| 62 | # define VFP_ABI_FRAME 0x40 |
| 63 | #else |
| 64 | # define VFP_ABI_PUSH |
| 65 | # define VFP_ABI_POP |
| 66 | # define VFP_ABI_FRAME 0 |
| 67 | # define BSAES_ASM_EXTENDED_KEY |
| 68 | # define XTS_CHAIN_TWEAK |
| 69 | # define __ARM_ARCH__ __LINUX_ARM_ARCH__ |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 70 | # define __ARM_MAX_ARCH__ 7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 71 | #endif |
| 72 | |
| 73 | #ifdef __thumb__ |
| 74 | # define adrl adr |
| 75 | #endif |
| 76 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 77 | #if __ARM_MAX_ARCH__>=7 |
| 78 | .arch armv7-a |
| 79 | .fpu neon |
| 80 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 81 | .text |
| 82 | .syntax unified @ ARMv7-capable assembler is expected to handle this |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 83 | #if defined(__thumb2__) && !defined(__APPLE__) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 84 | .thumb |
| 85 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 86 | .code 32 |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 87 | # undef __thumb2__ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 88 | #endif |
| 89 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 90 | .type _bsaes_decrypt8,%function |
| 91 | .align 4 |
| 92 | _bsaes_decrypt8: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 93 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 94 | vldmia r4!, {q9} @ round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 95 | #ifdef __APPLE__ |
| 96 | adr r6,.LM0ISR |
| 97 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 98 | add r6,r6,#.LM0ISR-_bsaes_decrypt8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 99 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 100 | |
| 101 | vldmia r6!, {q8} @ .LM0ISR |
| 102 | veor q10, q0, q9 @ xor with round0 key |
| 103 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 104 | vtbl.8 d0, {q10}, d16 |
| 105 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 106 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 107 | vtbl.8 d2, {q11}, d16 |
| 108 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 109 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 110 | vtbl.8 d4, {q12}, d16 |
| 111 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 112 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 113 | vtbl.8 d6, {q13}, d16 |
| 114 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 115 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 116 | vtbl.8 d8, {q14}, d16 |
| 117 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 118 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 119 | vtbl.8 d10, {q15}, d16 |
| 120 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 121 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 122 | vtbl.8 d12, {q10}, d16 |
| 123 | vtbl.8 d13, {q10}, d17 |
| 124 | vtbl.8 d14, {q11}, d16 |
| 125 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 126 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 127 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 128 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 129 | vshr.u64 q11, q4, #1 |
| 130 | veor q10, q10, q7 |
| 131 | veor q11, q11, q5 |
| 132 | vand q10, q10, q8 |
| 133 | vand q11, q11, q8 |
| 134 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 135 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 136 | veor q5, q5, q11 |
| 137 | vshl.u64 q11, q11, #1 |
| 138 | veor q6, q6, q10 |
| 139 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 140 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 141 | vshr.u64 q11, q0, #1 |
| 142 | veor q10, q10, q3 |
| 143 | veor q11, q11, q1 |
| 144 | vand q10, q10, q8 |
| 145 | vand q11, q11, q8 |
| 146 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 147 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 148 | veor q1, q1, q11 |
| 149 | vshl.u64 q11, q11, #1 |
| 150 | veor q2, q2, q10 |
| 151 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 152 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 153 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 154 | vshr.u64 q11, q4, #2 |
| 155 | veor q10, q10, q7 |
| 156 | veor q11, q11, q6 |
| 157 | vand q10, q10, q9 |
| 158 | vand q11, q11, q9 |
| 159 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 160 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 161 | veor q6, q6, q11 |
| 162 | vshl.u64 q11, q11, #2 |
| 163 | veor q5, q5, q10 |
| 164 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 165 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 166 | vshr.u64 q11, q0, #2 |
| 167 | veor q10, q10, q3 |
| 168 | veor q11, q11, q2 |
| 169 | vand q10, q10, q9 |
| 170 | vand q11, q11, q9 |
| 171 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 172 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 173 | veor q2, q2, q11 |
| 174 | vshl.u64 q11, q11, #2 |
| 175 | veor q1, q1, q10 |
| 176 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 177 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 178 | vshr.u64 q11, q2, #4 |
| 179 | veor q10, q10, q7 |
| 180 | veor q11, q11, q6 |
| 181 | vand q10, q10, q8 |
| 182 | vand q11, q11, q8 |
| 183 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 184 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 185 | veor q6, q6, q11 |
| 186 | vshl.u64 q11, q11, #4 |
| 187 | veor q3, q3, q10 |
| 188 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 189 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 190 | vshr.u64 q11, q0, #4 |
| 191 | veor q10, q10, q5 |
| 192 | veor q11, q11, q4 |
| 193 | vand q10, q10, q8 |
| 194 | vand q11, q11, q8 |
| 195 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 196 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 197 | veor q4, q4, q11 |
| 198 | vshl.u64 q11, q11, #4 |
| 199 | veor q1, q1, q10 |
| 200 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 201 | sub r5,r5,#1 |
| 202 | b .Ldec_sbox |
| 203 | .align 4 |
| 204 | .Ldec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 205 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 206 | veor q8, q8, q0 |
| 207 | veor q9, q9, q1 |
| 208 | vtbl.8 d0, {q8}, d24 |
| 209 | vtbl.8 d1, {q8}, d25 |
| 210 | vldmia r4!, {q8} |
| 211 | veor q10, q10, q2 |
| 212 | vtbl.8 d2, {q9}, d24 |
| 213 | vtbl.8 d3, {q9}, d25 |
| 214 | vldmia r4!, {q9} |
| 215 | veor q11, q11, q3 |
| 216 | vtbl.8 d4, {q10}, d24 |
| 217 | vtbl.8 d5, {q10}, d25 |
| 218 | vldmia r4!, {q10} |
| 219 | vtbl.8 d6, {q11}, d24 |
| 220 | vtbl.8 d7, {q11}, d25 |
| 221 | vldmia r4!, {q11} |
| 222 | veor q8, q8, q4 |
| 223 | veor q9, q9, q5 |
| 224 | vtbl.8 d8, {q8}, d24 |
| 225 | vtbl.8 d9, {q8}, d25 |
| 226 | veor q10, q10, q6 |
| 227 | vtbl.8 d10, {q9}, d24 |
| 228 | vtbl.8 d11, {q9}, d25 |
| 229 | veor q11, q11, q7 |
| 230 | vtbl.8 d12, {q10}, d24 |
| 231 | vtbl.8 d13, {q10}, d25 |
| 232 | vtbl.8 d14, {q11}, d24 |
| 233 | vtbl.8 d15, {q11}, d25 |
| 234 | .Ldec_sbox: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 235 | veor q1, q1, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 236 | veor q3, q3, q4 |
| 237 | |
| 238 | veor q4, q4, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 239 | veor q1, q1, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 240 | veor q2, q2, q7 |
| 241 | veor q6, q6, q4 |
| 242 | |
| 243 | veor q0, q0, q1 |
| 244 | veor q2, q2, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 245 | veor q7, q7, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 246 | veor q3, q3, q0 |
| 247 | veor q5, q5, q0 |
| 248 | veor q1, q1, q3 |
| 249 | veor q11, q3, q0 |
| 250 | veor q10, q7, q4 |
| 251 | veor q9, q1, q6 |
| 252 | veor q13, q4, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 253 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 254 | veor q12, q5, q2 |
| 255 | |
| 256 | vorr q10, q10, q9 |
| 257 | veor q15, q11, q8 |
| 258 | vand q14, q11, q12 |
| 259 | vorr q11, q11, q12 |
| 260 | veor q12, q12, q9 |
| 261 | vand q8, q8, q9 |
| 262 | veor q9, q6, q2 |
| 263 | vand q15, q15, q12 |
| 264 | vand q13, q13, q9 |
| 265 | veor q9, q3, q7 |
| 266 | veor q12, q1, q5 |
| 267 | veor q11, q11, q13 |
| 268 | veor q10, q10, q13 |
| 269 | vand q13, q9, q12 |
| 270 | vorr q9, q9, q12 |
| 271 | veor q11, q11, q15 |
| 272 | veor q8, q8, q13 |
| 273 | veor q10, q10, q14 |
| 274 | veor q9, q9, q15 |
| 275 | veor q8, q8, q14 |
| 276 | vand q12, q4, q6 |
| 277 | veor q9, q9, q14 |
| 278 | vand q13, q0, q2 |
| 279 | vand q14, q7, q1 |
| 280 | vorr q15, q3, q5 |
| 281 | veor q11, q11, q12 |
| 282 | veor q9, q9, q14 |
| 283 | veor q8, q8, q15 |
| 284 | veor q10, q10, q13 |
| 285 | |
| 286 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 287 | |
| 288 | @ new smaller inversion |
| 289 | |
| 290 | vand q14, q11, q9 |
| 291 | vmov q12, q8 |
| 292 | |
| 293 | veor q13, q10, q14 |
| 294 | veor q15, q8, q14 |
| 295 | veor q14, q8, q14 @ q14=q15 |
| 296 | |
| 297 | vbsl q13, q9, q8 |
| 298 | vbsl q15, q11, q10 |
| 299 | veor q11, q11, q10 |
| 300 | |
| 301 | vbsl q12, q13, q14 |
| 302 | vbsl q8, q14, q13 |
| 303 | |
| 304 | vand q14, q12, q15 |
| 305 | veor q9, q9, q8 |
| 306 | |
| 307 | veor q14, q14, q11 |
| 308 | veor q12, q5, q2 |
| 309 | veor q8, q1, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 310 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 311 | vand q10, q10, q5 |
| 312 | veor q5, q5, q1 |
| 313 | vand q11, q1, q15 |
| 314 | vand q5, q5, q14 |
| 315 | veor q1, q11, q10 |
| 316 | veor q5, q5, q11 |
| 317 | veor q15, q15, q13 |
| 318 | veor q14, q14, q9 |
| 319 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 320 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 321 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 322 | vand q10, q10, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 323 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 324 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 325 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 326 | vand q6, q6, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 327 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 328 | vand q2, q2, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 329 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 330 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 331 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 332 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 333 | veor q5, q5, q12 |
| 334 | veor q2, q2, q12 |
| 335 | veor q1, q1, q8 |
| 336 | veor q6, q6, q8 |
| 337 | |
| 338 | veor q12, q3, q0 |
| 339 | veor q8, q7, q4 |
| 340 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 341 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 342 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 343 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 344 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 345 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 346 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 347 | vand q4, q4, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 348 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 349 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 350 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 351 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 352 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 353 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 354 | veor q15, q15, q13 |
| 355 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 356 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 357 | vand q10, q10, q3 |
| 358 | veor q3, q3, q7 |
| 359 | vand q11, q7, q15 |
| 360 | vand q3, q3, q14 |
| 361 | veor q7, q11, q10 |
| 362 | veor q3, q3, q11 |
| 363 | veor q3, q3, q12 |
| 364 | veor q0, q0, q12 |
| 365 | veor q7, q7, q8 |
| 366 | veor q4, q4, q8 |
| 367 | veor q1, q1, q7 |
| 368 | veor q6, q6, q5 |
| 369 | |
| 370 | veor q4, q4, q1 |
| 371 | veor q2, q2, q7 |
| 372 | veor q5, q5, q7 |
| 373 | veor q4, q4, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 374 | veor q7, q7, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 375 | veor q4, q4, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 376 | veor q3, q3, q6 |
| 377 | veor q6, q6, q1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 378 | veor q3, q3, q4 |
| 379 | |
| 380 | veor q4, q4, q0 |
| 381 | veor q7, q7, q3 |
| 382 | subs r5,r5,#1 |
| 383 | bcc .Ldec_done |
| 384 | @ multiplication by 0x05-0x00-0x04-0x00 |
| 385 | vext.8 q8, q0, q0, #8 |
| 386 | vext.8 q14, q3, q3, #8 |
| 387 | vext.8 q15, q5, q5, #8 |
| 388 | veor q8, q8, q0 |
| 389 | vext.8 q9, q1, q1, #8 |
| 390 | veor q14, q14, q3 |
| 391 | vext.8 q10, q6, q6, #8 |
| 392 | veor q15, q15, q5 |
| 393 | vext.8 q11, q4, q4, #8 |
| 394 | veor q9, q9, q1 |
| 395 | vext.8 q12, q2, q2, #8 |
| 396 | veor q10, q10, q6 |
| 397 | vext.8 q13, q7, q7, #8 |
| 398 | veor q11, q11, q4 |
| 399 | veor q12, q12, q2 |
| 400 | veor q13, q13, q7 |
| 401 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 402 | veor q0, q0, q14 |
| 403 | veor q1, q1, q14 |
| 404 | veor q6, q6, q8 |
| 405 | veor q2, q2, q10 |
| 406 | veor q4, q4, q9 |
| 407 | veor q1, q1, q15 |
| 408 | veor q6, q6, q15 |
| 409 | veor q2, q2, q14 |
| 410 | veor q7, q7, q11 |
| 411 | veor q4, q4, q14 |
| 412 | veor q3, q3, q12 |
| 413 | veor q2, q2, q15 |
| 414 | veor q7, q7, q15 |
| 415 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 416 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 417 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 418 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 419 | vext.8 q10, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 420 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 421 | vext.8 q11, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 422 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 423 | vext.8 q12, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 424 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 425 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 426 | veor q2, q2, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 427 | vext.8 q14, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 428 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 429 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 430 | veor q3, q3, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 431 | |
| 432 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 433 | veor q5, q5, q15 |
| 434 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 435 | veor q10, q10, q1 |
| 436 | veor q8, q8, q5 |
| 437 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 438 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 439 | veor q13, q13, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 440 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 441 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 442 | veor q1, q1, q9 |
| 443 | vext.8 q8, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 444 | veor q12, q12, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 445 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 446 | veor q15, q15, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 447 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 448 | veor q11, q11, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 449 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 450 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 451 | vext.8 q4, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 452 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 453 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 454 | veor q5, q9, q13 |
| 455 | veor q11, q11, q2 |
| 456 | veor q7, q7, q15 |
| 457 | veor q6, q4, q14 |
| 458 | veor q4, q8, q12 |
| 459 | veor q2, q3, q10 |
| 460 | vmov q3, q11 |
| 461 | @ vmov q5, q9 |
| 462 | vldmia r6, {q12} @ .LISR |
| 463 | ite eq @ Thumb2 thing, sanity check in ARM |
| 464 | addeq r6,r6,#0x10 |
| 465 | bne .Ldec_loop |
| 466 | vldmia r6, {q12} @ .LISRM0 |
| 467 | b .Ldec_loop |
| 468 | .align 4 |
| 469 | .Ldec_done: |
| 470 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 471 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 472 | vshr.u64 q10, q3, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 473 | vshr.u64 q11, q2, #1 |
| 474 | veor q10, q10, q5 |
| 475 | veor q11, q11, q7 |
| 476 | vand q10, q10, q8 |
| 477 | vand q11, q11, q8 |
| 478 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 479 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 480 | veor q7, q7, q11 |
| 481 | vshl.u64 q11, q11, #1 |
| 482 | veor q3, q3, q10 |
| 483 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 484 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 485 | vshr.u64 q11, q0, #1 |
| 486 | veor q10, q10, q4 |
| 487 | veor q11, q11, q1 |
| 488 | vand q10, q10, q8 |
| 489 | vand q11, q11, q8 |
| 490 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 491 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 492 | veor q1, q1, q11 |
| 493 | vshl.u64 q11, q11, #1 |
| 494 | veor q6, q6, q10 |
| 495 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 496 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 497 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 498 | vshr.u64 q11, q2, #2 |
| 499 | veor q10, q10, q5 |
| 500 | veor q11, q11, q3 |
| 501 | vand q10, q10, q9 |
| 502 | vand q11, q11, q9 |
| 503 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 504 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 505 | veor q3, q3, q11 |
| 506 | vshl.u64 q11, q11, #2 |
| 507 | veor q7, q7, q10 |
| 508 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 509 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 510 | vshr.u64 q11, q0, #2 |
| 511 | veor q10, q10, q4 |
| 512 | veor q11, q11, q6 |
| 513 | vand q10, q10, q9 |
| 514 | vand q11, q11, q9 |
| 515 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 516 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 517 | veor q6, q6, q11 |
| 518 | vshl.u64 q11, q11, #2 |
| 519 | veor q1, q1, q10 |
| 520 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 521 | vshr.u64 q10, q4, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 522 | vshr.u64 q11, q6, #4 |
| 523 | veor q10, q10, q5 |
| 524 | veor q11, q11, q3 |
| 525 | vand q10, q10, q8 |
| 526 | vand q11, q11, q8 |
| 527 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 528 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 529 | veor q3, q3, q11 |
| 530 | vshl.u64 q11, q11, #4 |
| 531 | veor q4, q4, q10 |
| 532 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 533 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 534 | vshr.u64 q11, q0, #4 |
| 535 | veor q10, q10, q7 |
| 536 | veor q11, q11, q2 |
| 537 | vand q10, q10, q8 |
| 538 | vand q11, q11, q8 |
| 539 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 540 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 541 | veor q2, q2, q11 |
| 542 | vshl.u64 q11, q11, #4 |
| 543 | veor q1, q1, q10 |
| 544 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 545 | vldmia r4, {q8} @ last round key |
| 546 | veor q6, q6, q8 |
| 547 | veor q4, q4, q8 |
| 548 | veor q2, q2, q8 |
| 549 | veor q7, q7, q8 |
| 550 | veor q3, q3, q8 |
| 551 | veor q5, q5, q8 |
| 552 | veor q0, q0, q8 |
| 553 | veor q1, q1, q8 |
| 554 | bx lr |
| 555 | .size _bsaes_decrypt8,.-_bsaes_decrypt8 |
| 556 | |
| 557 | .type _bsaes_const,%object |
| 558 | .align 6 |
| 559 | _bsaes_const: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 560 | .LM0ISR:@ InvShiftRows constants |
| 561 | .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 562 | .LISR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 563 | .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 564 | .LISRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 565 | .quad 0x01040b0e0205080f, 0x0306090c00070a0d |
| 566 | .LM0SR:@ ShiftRows constants |
| 567 | .quad 0x0a0e02060f03070b, 0x0004080c05090d01 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 568 | .LSR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 569 | .quad 0x0504070600030201, 0x0f0e0d0c0a09080b |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 570 | .LSRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 571 | .quad 0x0304090e00050a0f, 0x01060b0c0207080d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 572 | .LM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 573 | .quad 0x02060a0e03070b0f, 0x0004080c0105090d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 574 | .LREVM0SR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 575 | .quad 0x090d01050c000408, 0x03070b0f060a0e02 |
| 576 | .byte 66,105,116,45,115,108,105,99,101,100,32,65,69,83,32,102,111,114,32,78,69,79,78,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0 |
| 577 | .align 2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 578 | .align 6 |
| 579 | .size _bsaes_const,.-_bsaes_const |
| 580 | |
| 581 | .type _bsaes_encrypt8,%function |
| 582 | .align 4 |
| 583 | _bsaes_encrypt8: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 584 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 585 | vldmia r4!, {q9} @ round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 586 | #ifdef __APPLE__ |
| 587 | adr r6,.LM0SR |
| 588 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 589 | sub r6,r6,#_bsaes_encrypt8-.LM0SR |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 590 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 591 | |
| 592 | vldmia r6!, {q8} @ .LM0SR |
| 593 | _bsaes_encrypt8_alt: |
| 594 | veor q10, q0, q9 @ xor with round0 key |
| 595 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 596 | vtbl.8 d0, {q10}, d16 |
| 597 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 598 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 599 | vtbl.8 d2, {q11}, d16 |
| 600 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 601 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 602 | vtbl.8 d4, {q12}, d16 |
| 603 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 604 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 605 | vtbl.8 d6, {q13}, d16 |
| 606 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 607 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 608 | vtbl.8 d8, {q14}, d16 |
| 609 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 610 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 611 | vtbl.8 d10, {q15}, d16 |
| 612 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 613 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 614 | vtbl.8 d12, {q10}, d16 |
| 615 | vtbl.8 d13, {q10}, d17 |
| 616 | vtbl.8 d14, {q11}, d16 |
| 617 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 618 | _bsaes_encrypt8_bitslice: |
| 619 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 620 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 621 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 622 | vshr.u64 q11, q4, #1 |
| 623 | veor q10, q10, q7 |
| 624 | veor q11, q11, q5 |
| 625 | vand q10, q10, q8 |
| 626 | vand q11, q11, q8 |
| 627 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 628 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 629 | veor q5, q5, q11 |
| 630 | vshl.u64 q11, q11, #1 |
| 631 | veor q6, q6, q10 |
| 632 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 633 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 634 | vshr.u64 q11, q0, #1 |
| 635 | veor q10, q10, q3 |
| 636 | veor q11, q11, q1 |
| 637 | vand q10, q10, q8 |
| 638 | vand q11, q11, q8 |
| 639 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 640 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 641 | veor q1, q1, q11 |
| 642 | vshl.u64 q11, q11, #1 |
| 643 | veor q2, q2, q10 |
| 644 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 645 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 646 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 647 | vshr.u64 q11, q4, #2 |
| 648 | veor q10, q10, q7 |
| 649 | veor q11, q11, q6 |
| 650 | vand q10, q10, q9 |
| 651 | vand q11, q11, q9 |
| 652 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 653 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 654 | veor q6, q6, q11 |
| 655 | vshl.u64 q11, q11, #2 |
| 656 | veor q5, q5, q10 |
| 657 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 658 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 659 | vshr.u64 q11, q0, #2 |
| 660 | veor q10, q10, q3 |
| 661 | veor q11, q11, q2 |
| 662 | vand q10, q10, q9 |
| 663 | vand q11, q11, q9 |
| 664 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 665 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 666 | veor q2, q2, q11 |
| 667 | vshl.u64 q11, q11, #2 |
| 668 | veor q1, q1, q10 |
| 669 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 670 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 671 | vshr.u64 q11, q2, #4 |
| 672 | veor q10, q10, q7 |
| 673 | veor q11, q11, q6 |
| 674 | vand q10, q10, q8 |
| 675 | vand q11, q11, q8 |
| 676 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 677 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 678 | veor q6, q6, q11 |
| 679 | vshl.u64 q11, q11, #4 |
| 680 | veor q3, q3, q10 |
| 681 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 682 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 683 | vshr.u64 q11, q0, #4 |
| 684 | veor q10, q10, q5 |
| 685 | veor q11, q11, q4 |
| 686 | vand q10, q10, q8 |
| 687 | vand q11, q11, q8 |
| 688 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 689 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 690 | veor q4, q4, q11 |
| 691 | vshl.u64 q11, q11, #4 |
| 692 | veor q1, q1, q10 |
| 693 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 694 | sub r5,r5,#1 |
| 695 | b .Lenc_sbox |
| 696 | .align 4 |
| 697 | .Lenc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 698 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 699 | veor q8, q8, q0 |
| 700 | veor q9, q9, q1 |
| 701 | vtbl.8 d0, {q8}, d24 |
| 702 | vtbl.8 d1, {q8}, d25 |
| 703 | vldmia r4!, {q8} |
| 704 | veor q10, q10, q2 |
| 705 | vtbl.8 d2, {q9}, d24 |
| 706 | vtbl.8 d3, {q9}, d25 |
| 707 | vldmia r4!, {q9} |
| 708 | veor q11, q11, q3 |
| 709 | vtbl.8 d4, {q10}, d24 |
| 710 | vtbl.8 d5, {q10}, d25 |
| 711 | vldmia r4!, {q10} |
| 712 | vtbl.8 d6, {q11}, d24 |
| 713 | vtbl.8 d7, {q11}, d25 |
| 714 | vldmia r4!, {q11} |
| 715 | veor q8, q8, q4 |
| 716 | veor q9, q9, q5 |
| 717 | vtbl.8 d8, {q8}, d24 |
| 718 | vtbl.8 d9, {q8}, d25 |
| 719 | veor q10, q10, q6 |
| 720 | vtbl.8 d10, {q9}, d24 |
| 721 | vtbl.8 d11, {q9}, d25 |
| 722 | veor q11, q11, q7 |
| 723 | vtbl.8 d12, {q10}, d24 |
| 724 | vtbl.8 d13, {q10}, d25 |
| 725 | vtbl.8 d14, {q11}, d24 |
| 726 | vtbl.8 d15, {q11}, d25 |
| 727 | .Lenc_sbox: |
| 728 | veor q2, q2, q1 |
| 729 | veor q5, q5, q6 |
| 730 | veor q3, q3, q0 |
| 731 | veor q6, q6, q2 |
| 732 | veor q5, q5, q0 |
| 733 | |
| 734 | veor q6, q6, q3 |
| 735 | veor q3, q3, q7 |
| 736 | veor q7, q7, q5 |
| 737 | veor q3, q3, q4 |
| 738 | veor q4, q4, q5 |
| 739 | |
| 740 | veor q2, q2, q7 |
| 741 | veor q3, q3, q1 |
| 742 | veor q1, q1, q5 |
| 743 | veor q11, q7, q4 |
| 744 | veor q10, q1, q2 |
| 745 | veor q9, q5, q3 |
| 746 | veor q13, q2, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 747 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 748 | veor q12, q6, q0 |
| 749 | |
| 750 | vorr q10, q10, q9 |
| 751 | veor q15, q11, q8 |
| 752 | vand q14, q11, q12 |
| 753 | vorr q11, q11, q12 |
| 754 | veor q12, q12, q9 |
| 755 | vand q8, q8, q9 |
| 756 | veor q9, q3, q0 |
| 757 | vand q15, q15, q12 |
| 758 | vand q13, q13, q9 |
| 759 | veor q9, q7, q1 |
| 760 | veor q12, q5, q6 |
| 761 | veor q11, q11, q13 |
| 762 | veor q10, q10, q13 |
| 763 | vand q13, q9, q12 |
| 764 | vorr q9, q9, q12 |
| 765 | veor q11, q11, q15 |
| 766 | veor q8, q8, q13 |
| 767 | veor q10, q10, q14 |
| 768 | veor q9, q9, q15 |
| 769 | veor q8, q8, q14 |
| 770 | vand q12, q2, q3 |
| 771 | veor q9, q9, q14 |
| 772 | vand q13, q4, q0 |
| 773 | vand q14, q1, q5 |
| 774 | vorr q15, q7, q6 |
| 775 | veor q11, q11, q12 |
| 776 | veor q9, q9, q14 |
| 777 | veor q8, q8, q15 |
| 778 | veor q10, q10, q13 |
| 779 | |
| 780 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 781 | |
| 782 | @ new smaller inversion |
| 783 | |
| 784 | vand q14, q11, q9 |
| 785 | vmov q12, q8 |
| 786 | |
| 787 | veor q13, q10, q14 |
| 788 | veor q15, q8, q14 |
| 789 | veor q14, q8, q14 @ q14=q15 |
| 790 | |
| 791 | vbsl q13, q9, q8 |
| 792 | vbsl q15, q11, q10 |
| 793 | veor q11, q11, q10 |
| 794 | |
| 795 | vbsl q12, q13, q14 |
| 796 | vbsl q8, q14, q13 |
| 797 | |
| 798 | vand q14, q12, q15 |
| 799 | veor q9, q9, q8 |
| 800 | |
| 801 | veor q14, q14, q11 |
| 802 | veor q12, q6, q0 |
| 803 | veor q8, q5, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 804 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 805 | vand q10, q10, q6 |
| 806 | veor q6, q6, q5 |
| 807 | vand q11, q5, q15 |
| 808 | vand q6, q6, q14 |
| 809 | veor q5, q11, q10 |
| 810 | veor q6, q6, q11 |
| 811 | veor q15, q15, q13 |
| 812 | veor q14, q14, q9 |
| 813 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 814 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 815 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 816 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 817 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 818 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 819 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 820 | vand q3, q3, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 821 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 822 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 823 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 824 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 825 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 826 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 827 | veor q6, q6, q12 |
| 828 | veor q0, q0, q12 |
| 829 | veor q5, q5, q8 |
| 830 | veor q3, q3, q8 |
| 831 | |
| 832 | veor q12, q7, q4 |
| 833 | veor q8, q1, q2 |
| 834 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 835 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 836 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 837 | vand q10, q10, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 838 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 839 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 840 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 841 | vand q2, q2, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 842 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 843 | vand q4, q4, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 844 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 845 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 846 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 847 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 848 | veor q15, q15, q13 |
| 849 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 850 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 851 | vand q10, q10, q7 |
| 852 | veor q7, q7, q1 |
| 853 | vand q11, q1, q15 |
| 854 | vand q7, q7, q14 |
| 855 | veor q1, q11, q10 |
| 856 | veor q7, q7, q11 |
| 857 | veor q7, q7, q12 |
| 858 | veor q4, q4, q12 |
| 859 | veor q1, q1, q8 |
| 860 | veor q2, q2, q8 |
| 861 | veor q7, q7, q0 |
| 862 | veor q1, q1, q6 |
| 863 | veor q6, q6, q0 |
| 864 | veor q4, q4, q7 |
| 865 | veor q0, q0, q1 |
| 866 | |
| 867 | veor q1, q1, q5 |
| 868 | veor q5, q5, q2 |
| 869 | veor q2, q2, q3 |
| 870 | veor q3, q3, q5 |
| 871 | veor q4, q4, q5 |
| 872 | |
| 873 | veor q6, q6, q3 |
| 874 | subs r5,r5,#1 |
| 875 | bcc .Lenc_done |
| 876 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 877 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 878 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 879 | vext.8 q10, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 880 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 881 | vext.8 q11, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 882 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 883 | vext.8 q12, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 884 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 885 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 886 | veor q3, q3, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 887 | vext.8 q14, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 888 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 889 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 890 | veor q2, q2, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 891 | |
| 892 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 893 | veor q5, q5, q15 |
| 894 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 895 | veor q10, q10, q1 |
| 896 | veor q8, q8, q5 |
| 897 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 898 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 899 | veor q13, q13, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 900 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 901 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 902 | veor q1, q1, q9 |
| 903 | vext.8 q8, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 904 | veor q12, q12, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 905 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 906 | veor q15, q15, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 907 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 908 | veor q11, q11, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 909 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 910 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 911 | vext.8 q6, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 912 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 913 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 914 | veor q5, q9, q13 |
| 915 | veor q4, q8, q12 |
| 916 | veor q3, q3, q11 |
| 917 | veor q7, q7, q15 |
| 918 | veor q6, q6, q14 |
| 919 | @ vmov q4, q8 |
| 920 | veor q2, q2, q10 |
| 921 | @ vmov q5, q9 |
| 922 | vldmia r6, {q12} @ .LSR |
| 923 | ite eq @ Thumb2 thing, samity check in ARM |
| 924 | addeq r6,r6,#0x10 |
| 925 | bne .Lenc_loop |
| 926 | vldmia r6, {q12} @ .LSRM0 |
| 927 | b .Lenc_loop |
| 928 | .align 4 |
| 929 | .Lenc_done: |
| 930 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 931 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 932 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 933 | vshr.u64 q11, q3, #1 |
| 934 | veor q10, q10, q5 |
| 935 | veor q11, q11, q7 |
| 936 | vand q10, q10, q8 |
| 937 | vand q11, q11, q8 |
| 938 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 939 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 940 | veor q7, q7, q11 |
| 941 | vshl.u64 q11, q11, #1 |
| 942 | veor q2, q2, q10 |
| 943 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 944 | vshr.u64 q10, q4, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 945 | vshr.u64 q11, q0, #1 |
| 946 | veor q10, q10, q6 |
| 947 | veor q11, q11, q1 |
| 948 | vand q10, q10, q8 |
| 949 | vand q11, q11, q8 |
| 950 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 951 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 952 | veor q1, q1, q11 |
| 953 | vshl.u64 q11, q11, #1 |
| 954 | veor q4, q4, q10 |
| 955 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 956 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 957 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 958 | vshr.u64 q11, q3, #2 |
| 959 | veor q10, q10, q5 |
| 960 | veor q11, q11, q2 |
| 961 | vand q10, q10, q9 |
| 962 | vand q11, q11, q9 |
| 963 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 964 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 965 | veor q2, q2, q11 |
| 966 | vshl.u64 q11, q11, #2 |
| 967 | veor q7, q7, q10 |
| 968 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 969 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 970 | vshr.u64 q11, q0, #2 |
| 971 | veor q10, q10, q6 |
| 972 | veor q11, q11, q4 |
| 973 | vand q10, q10, q9 |
| 974 | vand q11, q11, q9 |
| 975 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 976 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 977 | veor q4, q4, q11 |
| 978 | vshl.u64 q11, q11, #2 |
| 979 | veor q1, q1, q10 |
| 980 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 981 | vshr.u64 q10, q6, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 982 | vshr.u64 q11, q4, #4 |
| 983 | veor q10, q10, q5 |
| 984 | veor q11, q11, q2 |
| 985 | vand q10, q10, q8 |
| 986 | vand q11, q11, q8 |
| 987 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 988 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 989 | veor q2, q2, q11 |
| 990 | vshl.u64 q11, q11, #4 |
| 991 | veor q6, q6, q10 |
| 992 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 993 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 994 | vshr.u64 q11, q0, #4 |
| 995 | veor q10, q10, q7 |
| 996 | veor q11, q11, q3 |
| 997 | vand q10, q10, q8 |
| 998 | vand q11, q11, q8 |
| 999 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1000 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1001 | veor q3, q3, q11 |
| 1002 | vshl.u64 q11, q11, #4 |
| 1003 | veor q1, q1, q10 |
| 1004 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1005 | vldmia r4, {q8} @ last round key |
| 1006 | veor q4, q4, q8 |
| 1007 | veor q6, q6, q8 |
| 1008 | veor q3, q3, q8 |
| 1009 | veor q7, q7, q8 |
| 1010 | veor q2, q2, q8 |
| 1011 | veor q5, q5, q8 |
| 1012 | veor q0, q0, q8 |
| 1013 | veor q1, q1, q8 |
| 1014 | bx lr |
| 1015 | .size _bsaes_encrypt8,.-_bsaes_encrypt8 |
| 1016 | .type _bsaes_key_convert,%function |
| 1017 | .align 4 |
| 1018 | _bsaes_key_convert: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 1019 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1020 | vld1.8 {q7}, [r4]! @ load round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1021 | #ifdef __APPLE__ |
| 1022 | adr r6,.LM0 |
| 1023 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1024 | sub r6,r6,#_bsaes_key_convert-.LM0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1025 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1026 | vld1.8 {q15}, [r4]! @ load round 1 key |
| 1027 | |
| 1028 | vmov.i8 q8, #0x01 @ bit masks |
| 1029 | vmov.i8 q9, #0x02 |
| 1030 | vmov.i8 q10, #0x04 |
| 1031 | vmov.i8 q11, #0x08 |
| 1032 | vmov.i8 q12, #0x10 |
| 1033 | vmov.i8 q13, #0x20 |
| 1034 | vldmia r6, {q14} @ .LM0 |
| 1035 | |
| 1036 | #ifdef __ARMEL__ |
| 1037 | vrev32.8 q7, q7 |
| 1038 | vrev32.8 q15, q15 |
| 1039 | #endif |
| 1040 | sub r5,r5,#1 |
| 1041 | vstmia r12!, {q7} @ save round 0 key |
| 1042 | b .Lkey_loop |
| 1043 | |
| 1044 | .align 4 |
| 1045 | .Lkey_loop: |
| 1046 | vtbl.8 d14,{q15},d28 |
| 1047 | vtbl.8 d15,{q15},d29 |
| 1048 | vmov.i8 q6, #0x40 |
| 1049 | vmov.i8 q15, #0x80 |
| 1050 | |
| 1051 | vtst.8 q0, q7, q8 |
| 1052 | vtst.8 q1, q7, q9 |
| 1053 | vtst.8 q2, q7, q10 |
| 1054 | vtst.8 q3, q7, q11 |
| 1055 | vtst.8 q4, q7, q12 |
| 1056 | vtst.8 q5, q7, q13 |
| 1057 | vtst.8 q6, q7, q6 |
| 1058 | vtst.8 q7, q7, q15 |
| 1059 | vld1.8 {q15}, [r4]! @ load next round key |
| 1060 | vmvn q0, q0 @ "pnot" |
| 1061 | vmvn q1, q1 |
| 1062 | vmvn q5, q5 |
| 1063 | vmvn q6, q6 |
| 1064 | #ifdef __ARMEL__ |
| 1065 | vrev32.8 q15, q15 |
| 1066 | #endif |
| 1067 | subs r5,r5,#1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1068 | vstmia r12!,{q0,q1,q2,q3,q4,q5,q6,q7} @ write bit-sliced round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1069 | bne .Lkey_loop |
| 1070 | |
| 1071 | vmov.i8 q7,#0x63 @ compose .L63 |
| 1072 | @ don't save last round key |
| 1073 | bx lr |
| 1074 | .size _bsaes_key_convert,.-_bsaes_key_convert |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1075 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1076 | |
| 1077 | |
| 1078 | .globl bsaes_cbc_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1079 | .hidden bsaes_cbc_encrypt |
| 1080 | .type bsaes_cbc_encrypt,%function |
| 1081 | .align 5 |
| 1082 | bsaes_cbc_encrypt: |
| 1083 | #ifndef __KERNEL__ |
| 1084 | cmp r2, #128 |
| 1085 | #ifndef __thumb__ |
| 1086 | blo AES_cbc_encrypt |
| 1087 | #else |
| 1088 | bhs 1f |
| 1089 | b AES_cbc_encrypt |
| 1090 | 1: |
| 1091 | #endif |
| 1092 | #endif |
| 1093 | |
| 1094 | @ it is up to the caller to make sure we are called with enc == 0 |
| 1095 | |
| 1096 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1097 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1098 | VFP_ABI_PUSH |
| 1099 | ldr r8, [ip] @ IV is 1st arg on the stack |
| 1100 | mov r2, r2, lsr#4 @ len in 16 byte blocks |
| 1101 | sub sp, #0x10 @ scratch space to carry over the IV |
| 1102 | mov r9, sp @ save sp |
| 1103 | |
| 1104 | ldr r10, [r3, #240] @ get # of rounds |
| 1105 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1106 | @ allocate the key schedule on the stack |
| 1107 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1108 | add r12, #96 @ sifze of bit-slices key schedule |
| 1109 | |
| 1110 | @ populate the key schedule |
| 1111 | mov r4, r3 @ pass key |
| 1112 | mov r5, r10 @ pass # of rounds |
| 1113 | mov sp, r12 @ sp is sp |
| 1114 | bl _bsaes_key_convert |
| 1115 | vldmia sp, {q6} |
| 1116 | vstmia r12, {q15} @ save last round key |
| 1117 | veor q7, q7, q6 @ fix up round 0 key |
| 1118 | vstmia sp, {q7} |
| 1119 | #else |
| 1120 | ldr r12, [r3, #244] |
| 1121 | eors r12, #1 |
| 1122 | beq 0f |
| 1123 | |
| 1124 | @ populate the key schedule |
| 1125 | str r12, [r3, #244] |
| 1126 | mov r4, r3 @ pass key |
| 1127 | mov r5, r10 @ pass # of rounds |
| 1128 | add r12, r3, #248 @ pass key schedule |
| 1129 | bl _bsaes_key_convert |
| 1130 | add r4, r3, #248 |
| 1131 | vldmia r4, {q6} |
| 1132 | vstmia r12, {q15} @ save last round key |
| 1133 | veor q7, q7, q6 @ fix up round 0 key |
| 1134 | vstmia r4, {q7} |
| 1135 | |
| 1136 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1137 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1138 | #endif |
| 1139 | |
| 1140 | vld1.8 {q15}, [r8] @ load IV |
| 1141 | b .Lcbc_dec_loop |
| 1142 | |
| 1143 | .align 4 |
| 1144 | .Lcbc_dec_loop: |
| 1145 | subs r2, r2, #0x8 |
| 1146 | bmi .Lcbc_dec_loop_finish |
| 1147 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1148 | vld1.8 {q0,q1}, [r0]! @ load input |
| 1149 | vld1.8 {q2,q3}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1150 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1151 | mov r4, sp @ pass the key |
| 1152 | #else |
| 1153 | add r4, r3, #248 |
| 1154 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1155 | vld1.8 {q4,q5}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1156 | mov r5, r10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1157 | vld1.8 {q6,q7}, [r0] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1158 | sub r0, r0, #0x60 |
| 1159 | vstmia r9, {q15} @ put aside IV |
| 1160 | |
| 1161 | bl _bsaes_decrypt8 |
| 1162 | |
| 1163 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1164 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1165 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1166 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1167 | veor q1, q1, q8 |
| 1168 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1169 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1170 | veor q4, q4, q10 |
| 1171 | veor q2, q2, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1172 | vld1.8 {q14,q15}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1173 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1174 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1175 | veor q3, q3, q13 |
| 1176 | vst1.8 {q6}, [r1]! |
| 1177 | veor q5, q5, q14 |
| 1178 | vst1.8 {q4}, [r1]! |
| 1179 | vst1.8 {q2}, [r1]! |
| 1180 | vst1.8 {q7}, [r1]! |
| 1181 | vst1.8 {q3}, [r1]! |
| 1182 | vst1.8 {q5}, [r1]! |
| 1183 | |
| 1184 | b .Lcbc_dec_loop |
| 1185 | |
| 1186 | .Lcbc_dec_loop_finish: |
| 1187 | adds r2, r2, #8 |
| 1188 | beq .Lcbc_dec_done |
| 1189 | |
| 1190 | vld1.8 {q0}, [r0]! @ load input |
| 1191 | cmp r2, #2 |
| 1192 | blo .Lcbc_dec_one |
| 1193 | vld1.8 {q1}, [r0]! |
| 1194 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1195 | mov r4, sp @ pass the key |
| 1196 | #else |
| 1197 | add r4, r3, #248 |
| 1198 | #endif |
| 1199 | mov r5, r10 |
| 1200 | vstmia r9, {q15} @ put aside IV |
| 1201 | beq .Lcbc_dec_two |
| 1202 | vld1.8 {q2}, [r0]! |
| 1203 | cmp r2, #4 |
| 1204 | blo .Lcbc_dec_three |
| 1205 | vld1.8 {q3}, [r0]! |
| 1206 | beq .Lcbc_dec_four |
| 1207 | vld1.8 {q4}, [r0]! |
| 1208 | cmp r2, #6 |
| 1209 | blo .Lcbc_dec_five |
| 1210 | vld1.8 {q5}, [r0]! |
| 1211 | beq .Lcbc_dec_six |
| 1212 | vld1.8 {q6}, [r0]! |
| 1213 | sub r0, r0, #0x70 |
| 1214 | |
| 1215 | bl _bsaes_decrypt8 |
| 1216 | |
| 1217 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1218 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1219 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1220 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1221 | veor q1, q1, q8 |
| 1222 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1223 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1224 | veor q4, q4, q10 |
| 1225 | veor q2, q2, q11 |
| 1226 | vld1.8 {q15}, [r0]! |
| 1227 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1228 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1229 | veor q3, q3, q13 |
| 1230 | vst1.8 {q6}, [r1]! |
| 1231 | vst1.8 {q4}, [r1]! |
| 1232 | vst1.8 {q2}, [r1]! |
| 1233 | vst1.8 {q7}, [r1]! |
| 1234 | vst1.8 {q3}, [r1]! |
| 1235 | b .Lcbc_dec_done |
| 1236 | .align 4 |
| 1237 | .Lcbc_dec_six: |
| 1238 | sub r0, r0, #0x60 |
| 1239 | bl _bsaes_decrypt8 |
| 1240 | vldmia r9,{q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1241 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1242 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1243 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1244 | veor q1, q1, q8 |
| 1245 | veor q6, q6, q9 |
| 1246 | vld1.8 {q12}, [r0]! |
| 1247 | veor q4, q4, q10 |
| 1248 | veor q2, q2, q11 |
| 1249 | vld1.8 {q15}, [r0]! |
| 1250 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1251 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1252 | vst1.8 {q6}, [r1]! |
| 1253 | vst1.8 {q4}, [r1]! |
| 1254 | vst1.8 {q2}, [r1]! |
| 1255 | vst1.8 {q7}, [r1]! |
| 1256 | b .Lcbc_dec_done |
| 1257 | .align 4 |
| 1258 | .Lcbc_dec_five: |
| 1259 | sub r0, r0, #0x50 |
| 1260 | bl _bsaes_decrypt8 |
| 1261 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1262 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1263 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1264 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1265 | veor q1, q1, q8 |
| 1266 | veor q6, q6, q9 |
| 1267 | vld1.8 {q15}, [r0]! |
| 1268 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1269 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1270 | veor q2, q2, q11 |
| 1271 | vst1.8 {q6}, [r1]! |
| 1272 | vst1.8 {q4}, [r1]! |
| 1273 | vst1.8 {q2}, [r1]! |
| 1274 | b .Lcbc_dec_done |
| 1275 | .align 4 |
| 1276 | .Lcbc_dec_four: |
| 1277 | sub r0, r0, #0x40 |
| 1278 | bl _bsaes_decrypt8 |
| 1279 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1280 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1281 | veor q0, q0, q14 @ ^= IV |
| 1282 | vld1.8 {q10}, [r0]! |
| 1283 | veor q1, q1, q8 |
| 1284 | veor q6, q6, q9 |
| 1285 | vld1.8 {q15}, [r0]! |
| 1286 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1287 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1288 | vst1.8 {q6}, [r1]! |
| 1289 | vst1.8 {q4}, [r1]! |
| 1290 | b .Lcbc_dec_done |
| 1291 | .align 4 |
| 1292 | .Lcbc_dec_three: |
| 1293 | sub r0, r0, #0x30 |
| 1294 | bl _bsaes_decrypt8 |
| 1295 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1296 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1297 | veor q0, q0, q14 @ ^= IV |
| 1298 | vld1.8 {q15}, [r0]! |
| 1299 | veor q1, q1, q8 |
| 1300 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1301 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1302 | vst1.8 {q6}, [r1]! |
| 1303 | b .Lcbc_dec_done |
| 1304 | .align 4 |
| 1305 | .Lcbc_dec_two: |
| 1306 | sub r0, r0, #0x20 |
| 1307 | bl _bsaes_decrypt8 |
| 1308 | vldmia r9, {q14} @ reload IV |
| 1309 | vld1.8 {q8}, [r0]! @ reload input |
| 1310 | veor q0, q0, q14 @ ^= IV |
| 1311 | vld1.8 {q15}, [r0]! @ reload input |
| 1312 | veor q1, q1, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1313 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1314 | b .Lcbc_dec_done |
| 1315 | .align 4 |
| 1316 | .Lcbc_dec_one: |
| 1317 | sub r0, r0, #0x10 |
| 1318 | mov r10, r1 @ save original out pointer |
| 1319 | mov r1, r9 @ use the iv scratch space as out buffer |
| 1320 | mov r2, r3 |
| 1321 | vmov q4,q15 @ just in case ensure that IV |
| 1322 | vmov q5,q0 @ and input are preserved |
| 1323 | bl AES_decrypt |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 1324 | vld1.8 {q0}, [r9] @ load result |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1325 | veor q0, q0, q4 @ ^= IV |
| 1326 | vmov q15, q5 @ q5 holds input |
| 1327 | vst1.8 {q0}, [r10] @ write output |
| 1328 | |
| 1329 | .Lcbc_dec_done: |
| 1330 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1331 | vmov.i32 q0, #0 |
| 1332 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1333 | .Lcbc_dec_bzero:@ wipe key schedule [if any] |
| 1334 | vstmia sp!, {q0,q1} |
| 1335 | cmp sp, r9 |
| 1336 | bne .Lcbc_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1337 | #endif |
| 1338 | |
| 1339 | mov sp, r9 |
| 1340 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1341 | vst1.8 {q15}, [r8] @ return IV |
| 1342 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1343 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1344 | .size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1345 | |
| 1346 | .globl bsaes_ctr32_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1347 | .hidden bsaes_ctr32_encrypt_blocks |
| 1348 | .type bsaes_ctr32_encrypt_blocks,%function |
| 1349 | .align 5 |
| 1350 | bsaes_ctr32_encrypt_blocks: |
| 1351 | cmp r2, #8 @ use plain AES for |
| 1352 | blo .Lctr_enc_short @ small sizes |
| 1353 | |
| 1354 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1355 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1356 | VFP_ABI_PUSH |
| 1357 | ldr r8, [ip] @ ctr is 1st arg on the stack |
| 1358 | sub sp, sp, #0x10 @ scratch space to carry over the ctr |
| 1359 | mov r9, sp @ save sp |
| 1360 | |
| 1361 | ldr r10, [r3, #240] @ get # of rounds |
| 1362 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1363 | @ allocate the key schedule on the stack |
| 1364 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1365 | add r12, #96 @ size of bit-sliced key schedule |
| 1366 | |
| 1367 | @ populate the key schedule |
| 1368 | mov r4, r3 @ pass key |
| 1369 | mov r5, r10 @ pass # of rounds |
| 1370 | mov sp, r12 @ sp is sp |
| 1371 | bl _bsaes_key_convert |
| 1372 | veor q7,q7,q15 @ fix up last round key |
| 1373 | vstmia r12, {q7} @ save last round key |
| 1374 | |
| 1375 | vld1.8 {q0}, [r8] @ load counter |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1376 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 1377 | mov r8, #:lower16:(.LREVM0SR-.LM0) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1378 | add r8, r6, r8 |
| 1379 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1380 | add r8, r6, #.LREVM0SR-.LM0 @ borrow r8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1381 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1382 | vldmia sp, {q4} @ load round0 key |
| 1383 | #else |
| 1384 | ldr r12, [r3, #244] |
| 1385 | eors r12, #1 |
| 1386 | beq 0f |
| 1387 | |
| 1388 | @ populate the key schedule |
| 1389 | str r12, [r3, #244] |
| 1390 | mov r4, r3 @ pass key |
| 1391 | mov r5, r10 @ pass # of rounds |
| 1392 | add r12, r3, #248 @ pass key schedule |
| 1393 | bl _bsaes_key_convert |
| 1394 | veor q7,q7,q15 @ fix up last round key |
| 1395 | vstmia r12, {q7} @ save last round key |
| 1396 | |
| 1397 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1398 | add r12, r3, #248 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1399 | vld1.8 {q0}, [r8] @ load counter |
| 1400 | adrl r8, .LREVM0SR @ borrow r8 |
| 1401 | vldmia r12, {q4} @ load round0 key |
| 1402 | sub sp, #0x10 @ place for adjusted round0 key |
| 1403 | #endif |
| 1404 | |
| 1405 | vmov.i32 q8,#1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1406 | veor q9,q9,q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1407 | vrev32.8 q0,q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1408 | vext.8 q8,q9,q8,#4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1409 | vrev32.8 q4,q4 |
| 1410 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
| 1411 | vstmia sp, {q4} @ save adjusted round0 key |
| 1412 | b .Lctr_enc_loop |
| 1413 | |
| 1414 | .align 4 |
| 1415 | .Lctr_enc_loop: |
| 1416 | vadd.u32 q10, q8, q9 @ compose 3<<96 |
| 1417 | vadd.u32 q1, q0, q8 @ +1 |
| 1418 | vadd.u32 q2, q0, q9 @ +2 |
| 1419 | vadd.u32 q3, q0, q10 @ +3 |
| 1420 | vadd.u32 q4, q1, q10 |
| 1421 | vadd.u32 q5, q2, q10 |
| 1422 | vadd.u32 q6, q3, q10 |
| 1423 | vadd.u32 q7, q4, q10 |
| 1424 | vadd.u32 q10, q5, q10 @ next counter |
| 1425 | |
| 1426 | @ Borrow prologue from _bsaes_encrypt8 to use the opportunity |
| 1427 | @ to flip byte order in 32-bit counter |
| 1428 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1429 | vldmia sp, {q9} @ load round0 key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1430 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1431 | add r4, sp, #0x10 @ pass next round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1432 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1433 | add r4, r3, #264 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1434 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1435 | vldmia r8, {q8} @ .LREVM0SR |
| 1436 | mov r5, r10 @ pass rounds |
| 1437 | vstmia r9, {q10} @ save next counter |
| 1438 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 1439 | mov r6, #:lower16:(.LREVM0SR-.LSR) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1440 | sub r6, r8, r6 |
| 1441 | #else |
| 1442 | sub r6, r8, #.LREVM0SR-.LSR @ pass constants |
| 1443 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1444 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1445 | bl _bsaes_encrypt8_alt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1446 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1447 | subs r2, r2, #8 |
| 1448 | blo .Lctr_enc_loop_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1449 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1450 | vld1.8 {q8,q9}, [r0]! @ load input |
| 1451 | vld1.8 {q10,q11}, [r0]! |
| 1452 | veor q0, q8 |
| 1453 | veor q1, q9 |
| 1454 | vld1.8 {q12,q13}, [r0]! |
| 1455 | veor q4, q10 |
| 1456 | veor q6, q11 |
| 1457 | vld1.8 {q14,q15}, [r0]! |
| 1458 | veor q3, q12 |
| 1459 | vst1.8 {q0,q1}, [r1]! @ write output |
| 1460 | veor q7, q13 |
| 1461 | veor q2, q14 |
| 1462 | vst1.8 {q4}, [r1]! |
| 1463 | veor q5, q15 |
| 1464 | vst1.8 {q6}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1465 | vmov.i32 q8, #1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1466 | vst1.8 {q3}, [r1]! |
| 1467 | veor q9, q9, q9 |
| 1468 | vst1.8 {q7}, [r1]! |
| 1469 | vext.8 q8, q9, q8, #4 |
| 1470 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1471 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1472 | vst1.8 {q5}, [r1]! |
| 1473 | vldmia r9, {q0} @ load counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1474 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1475 | bne .Lctr_enc_loop |
| 1476 | b .Lctr_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1477 | |
| 1478 | .align 4 |
| 1479 | .Lctr_enc_loop_done: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1480 | add r2, r2, #8 |
| 1481 | vld1.8 {q8}, [r0]! @ load input |
| 1482 | veor q0, q8 |
| 1483 | vst1.8 {q0}, [r1]! @ write output |
| 1484 | cmp r2, #2 |
| 1485 | blo .Lctr_enc_done |
| 1486 | vld1.8 {q9}, [r0]! |
| 1487 | veor q1, q9 |
| 1488 | vst1.8 {q1}, [r1]! |
| 1489 | beq .Lctr_enc_done |
| 1490 | vld1.8 {q10}, [r0]! |
| 1491 | veor q4, q10 |
| 1492 | vst1.8 {q4}, [r1]! |
| 1493 | cmp r2, #4 |
| 1494 | blo .Lctr_enc_done |
| 1495 | vld1.8 {q11}, [r0]! |
| 1496 | veor q6, q11 |
| 1497 | vst1.8 {q6}, [r1]! |
| 1498 | beq .Lctr_enc_done |
| 1499 | vld1.8 {q12}, [r0]! |
| 1500 | veor q3, q12 |
| 1501 | vst1.8 {q3}, [r1]! |
| 1502 | cmp r2, #6 |
| 1503 | blo .Lctr_enc_done |
| 1504 | vld1.8 {q13}, [r0]! |
| 1505 | veor q7, q13 |
| 1506 | vst1.8 {q7}, [r1]! |
| 1507 | beq .Lctr_enc_done |
| 1508 | vld1.8 {q14}, [r0] |
| 1509 | veor q2, q14 |
| 1510 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1511 | |
| 1512 | .Lctr_enc_done: |
| 1513 | vmov.i32 q0, #0 |
| 1514 | vmov.i32 q1, #0 |
| 1515 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1516 | .Lctr_enc_bzero:@ wipe key schedule [if any] |
| 1517 | vstmia sp!, {q0,q1} |
| 1518 | cmp sp, r9 |
| 1519 | bne .Lctr_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1520 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1521 | vstmia sp, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1522 | #endif |
| 1523 | |
| 1524 | mov sp, r9 |
| 1525 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1526 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1527 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1528 | |
| 1529 | .align 4 |
| 1530 | .Lctr_enc_short: |
| 1531 | ldr ip, [sp] @ ctr pointer is passed on stack |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1532 | stmdb sp!, {r4,r5,r6,r7,r8, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1533 | |
| 1534 | mov r4, r0 @ copy arguments |
| 1535 | mov r5, r1 |
| 1536 | mov r6, r2 |
| 1537 | mov r7, r3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1538 | ldr r8, [ip, #12] @ load counter .LSW |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1539 | vld1.8 {q1}, [ip] @ load whole counter value |
| 1540 | #ifdef __ARMEL__ |
| 1541 | rev r8, r8 |
| 1542 | #endif |
| 1543 | sub sp, sp, #0x10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1544 | vst1.8 {q1}, [sp] @ copy counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1545 | sub sp, sp, #0x10 |
| 1546 | |
| 1547 | .Lctr_enc_short_loop: |
| 1548 | add r0, sp, #0x10 @ input counter value |
| 1549 | mov r1, sp @ output on the stack |
| 1550 | mov r2, r7 @ key |
| 1551 | |
| 1552 | bl AES_encrypt |
| 1553 | |
| 1554 | vld1.8 {q0}, [r4]! @ load input |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1555 | vld1.8 {q1}, [sp] @ load encrypted counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1556 | add r8, r8, #1 |
| 1557 | #ifdef __ARMEL__ |
| 1558 | rev r0, r8 |
| 1559 | str r0, [sp, #0x1c] @ next counter value |
| 1560 | #else |
| 1561 | str r8, [sp, #0x1c] @ next counter value |
| 1562 | #endif |
| 1563 | veor q0,q0,q1 |
| 1564 | vst1.8 {q0}, [r5]! @ store output |
| 1565 | subs r6, r6, #1 |
| 1566 | bne .Lctr_enc_short_loop |
| 1567 | |
| 1568 | vmov.i32 q0, #0 |
| 1569 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1570 | vstmia sp!, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1571 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1572 | ldmia sp!, {r4,r5,r6,r7,r8, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1573 | .size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks |
| 1574 | .globl bsaes_xts_encrypt |
| 1575 | .hidden bsaes_xts_encrypt |
| 1576 | .type bsaes_xts_encrypt,%function |
| 1577 | .align 4 |
| 1578 | bsaes_xts_encrypt: |
| 1579 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1580 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1581 | VFP_ABI_PUSH |
| 1582 | mov r6, sp @ future r3 |
| 1583 | |
| 1584 | mov r7, r0 |
| 1585 | mov r8, r1 |
| 1586 | mov r9, r2 |
| 1587 | mov r10, r3 |
| 1588 | |
| 1589 | sub r0, sp, #0x10 @ 0x10 |
| 1590 | bic r0, #0xf @ align at 16 bytes |
| 1591 | mov sp, r0 |
| 1592 | |
| 1593 | #ifdef XTS_CHAIN_TWEAK |
| 1594 | ldr r0, [ip] @ pointer to input tweak |
| 1595 | #else |
| 1596 | @ generate initial tweak |
| 1597 | ldr r0, [ip, #4] @ iv[] |
| 1598 | mov r1, sp |
| 1599 | ldr r2, [ip, #0] @ key2 |
| 1600 | bl AES_encrypt |
| 1601 | mov r0,sp @ pointer to initial tweak |
| 1602 | #endif |
| 1603 | |
| 1604 | ldr r1, [r10, #240] @ get # of rounds |
| 1605 | mov r3, r6 |
| 1606 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1607 | @ allocate the key schedule on the stack |
| 1608 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 1609 | @ add r12, #96 @ size of bit-sliced key schedule |
| 1610 | sub r12, #48 @ place for tweak[9] |
| 1611 | |
| 1612 | @ populate the key schedule |
| 1613 | mov r4, r10 @ pass key |
| 1614 | mov r5, r1 @ pass # of rounds |
| 1615 | mov sp, r12 |
| 1616 | add r12, #0x90 @ pass key schedule |
| 1617 | bl _bsaes_key_convert |
| 1618 | veor q7, q7, q15 @ fix up last round key |
| 1619 | vstmia r12, {q7} @ save last round key |
| 1620 | #else |
| 1621 | ldr r12, [r10, #244] |
| 1622 | eors r12, #1 |
| 1623 | beq 0f |
| 1624 | |
| 1625 | str r12, [r10, #244] |
| 1626 | mov r4, r10 @ pass key |
| 1627 | mov r5, r1 @ pass # of rounds |
| 1628 | add r12, r10, #248 @ pass key schedule |
| 1629 | bl _bsaes_key_convert |
| 1630 | veor q7, q7, q15 @ fix up last round key |
| 1631 | vstmia r12, {q7} |
| 1632 | |
| 1633 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1634 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1635 | #endif |
| 1636 | |
| 1637 | vld1.8 {q8}, [r0] @ initial tweak |
| 1638 | adr r2, .Lxts_magic |
| 1639 | |
| 1640 | subs r9, #0x80 |
| 1641 | blo .Lxts_enc_short |
| 1642 | b .Lxts_enc_loop |
| 1643 | |
| 1644 | .align 4 |
| 1645 | .Lxts_enc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1646 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1647 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1648 | mov r0, sp |
| 1649 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1650 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1651 | vst1.64 {q8}, [r0,:128]! |
| 1652 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1653 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1654 | veor q9, q9, q6 |
| 1655 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1656 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1657 | vst1.64 {q9}, [r0,:128]! |
| 1658 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1659 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1660 | veor q10, q10, q7 |
| 1661 | vand q6, q6, q5 |
| 1662 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1663 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1664 | vst1.64 {q10}, [r0,:128]! |
| 1665 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1666 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1667 | veor q11, q11, q6 |
| 1668 | vand q7, q7, q5 |
| 1669 | vld1.8 {q1}, [r7]! |
| 1670 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1671 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1672 | vst1.64 {q11}, [r0,:128]! |
| 1673 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1674 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1675 | veor q12, q12, q7 |
| 1676 | vand q6, q6, q5 |
| 1677 | vld1.8 {q2}, [r7]! |
| 1678 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1679 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1680 | vst1.64 {q12}, [r0,:128]! |
| 1681 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1682 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1683 | veor q13, q13, q6 |
| 1684 | vand q7, q7, q5 |
| 1685 | vld1.8 {q3}, [r7]! |
| 1686 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1687 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1688 | vst1.64 {q13}, [r0,:128]! |
| 1689 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1690 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1691 | veor q14, q14, q7 |
| 1692 | vand q6, q6, q5 |
| 1693 | vld1.8 {q4}, [r7]! |
| 1694 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1695 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1696 | vst1.64 {q14}, [r0,:128]! |
| 1697 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1698 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1699 | veor q15, q15, q6 |
| 1700 | vand q7, q7, q5 |
| 1701 | vld1.8 {q5}, [r7]! |
| 1702 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1703 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1704 | vst1.64 {q15}, [r0,:128]! |
| 1705 | vswp d15,d14 |
| 1706 | veor q8, q8, q7 |
| 1707 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1708 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1709 | vld1.8 {q6,q7}, [r7]! |
| 1710 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1711 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1712 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1713 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1714 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1715 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1716 | veor q6, q6, q14 |
| 1717 | mov r5, r1 @ pass rounds |
| 1718 | veor q7, q7, q15 |
| 1719 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1720 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1721 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1722 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1723 | vld1.64 {q8,q9}, [r0,:128]! |
| 1724 | vld1.64 {q10,q11}, [r0,:128]! |
| 1725 | veor q0, q0, q8 |
| 1726 | vld1.64 {q12,q13}, [r0,:128]! |
| 1727 | veor q1, q1, q9 |
| 1728 | veor q8, q4, q10 |
| 1729 | vst1.8 {q0,q1}, [r8]! |
| 1730 | veor q9, q6, q11 |
| 1731 | vld1.64 {q14,q15}, [r0,:128]! |
| 1732 | veor q10, q3, q12 |
| 1733 | vst1.8 {q8,q9}, [r8]! |
| 1734 | veor q11, q7, q13 |
| 1735 | veor q12, q2, q14 |
| 1736 | vst1.8 {q10,q11}, [r8]! |
| 1737 | veor q13, q5, q15 |
| 1738 | vst1.8 {q12,q13}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1739 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1740 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1741 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1742 | subs r9, #0x80 |
| 1743 | bpl .Lxts_enc_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1744 | |
| 1745 | .Lxts_enc_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1746 | adds r9, #0x70 |
| 1747 | bmi .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1748 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1749 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1750 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1751 | mov r0, sp |
| 1752 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1753 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1754 | vst1.64 {q8}, [r0,:128]! |
| 1755 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1756 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1757 | veor q9, q9, q7 |
| 1758 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1759 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1760 | vst1.64 {q9}, [r0,:128]! |
| 1761 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1762 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1763 | veor q10, q10, q6 |
| 1764 | vand q7, q7, q5 |
| 1765 | vld1.8 {q0}, [r7]! |
| 1766 | subs r9, #0x10 |
| 1767 | bmi .Lxts_enc_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1768 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1769 | vst1.64 {q10}, [r0,:128]! |
| 1770 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1771 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1772 | veor q11, q11, q7 |
| 1773 | vand q6, q6, q5 |
| 1774 | vld1.8 {q1}, [r7]! |
| 1775 | subs r9, #0x10 |
| 1776 | bmi .Lxts_enc_2 |
| 1777 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1778 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1779 | vst1.64 {q11}, [r0,:128]! |
| 1780 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1781 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1782 | veor q12, q12, q6 |
| 1783 | vand q7, q7, q5 |
| 1784 | vld1.8 {q2}, [r7]! |
| 1785 | subs r9, #0x10 |
| 1786 | bmi .Lxts_enc_3 |
| 1787 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1788 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1789 | vst1.64 {q12}, [r0,:128]! |
| 1790 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1791 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1792 | veor q13, q13, q7 |
| 1793 | vand q6, q6, q5 |
| 1794 | vld1.8 {q3}, [r7]! |
| 1795 | subs r9, #0x10 |
| 1796 | bmi .Lxts_enc_4 |
| 1797 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1798 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1799 | vst1.64 {q13}, [r0,:128]! |
| 1800 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1801 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1802 | veor q14, q14, q6 |
| 1803 | vand q7, q7, q5 |
| 1804 | vld1.8 {q4}, [r7]! |
| 1805 | subs r9, #0x10 |
| 1806 | bmi .Lxts_enc_5 |
| 1807 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1808 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1809 | vst1.64 {q14}, [r0,:128]! |
| 1810 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1811 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1812 | veor q15, q15, q7 |
| 1813 | vand q6, q6, q5 |
| 1814 | vld1.8 {q5}, [r7]! |
| 1815 | subs r9, #0x10 |
| 1816 | bmi .Lxts_enc_6 |
| 1817 | veor q4, q4, q12 |
| 1818 | sub r9, #0x10 |
| 1819 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1820 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1821 | vld1.8 {q6}, [r7]! |
| 1822 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1823 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1824 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1825 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1826 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1827 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1828 | veor q6, q6, q14 |
| 1829 | mov r5, r1 @ pass rounds |
| 1830 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1831 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1832 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1833 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1834 | vld1.64 {q8,q9}, [r0,:128]! |
| 1835 | vld1.64 {q10,q11}, [r0,:128]! |
| 1836 | veor q0, q0, q8 |
| 1837 | vld1.64 {q12,q13}, [r0,:128]! |
| 1838 | veor q1, q1, q9 |
| 1839 | veor q8, q4, q10 |
| 1840 | vst1.8 {q0,q1}, [r8]! |
| 1841 | veor q9, q6, q11 |
| 1842 | vld1.64 {q14}, [r0,:128]! |
| 1843 | veor q10, q3, q12 |
| 1844 | vst1.8 {q8,q9}, [r8]! |
| 1845 | veor q11, q7, q13 |
| 1846 | veor q12, q2, q14 |
| 1847 | vst1.8 {q10,q11}, [r8]! |
| 1848 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1849 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1850 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1851 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1852 | .align 4 |
| 1853 | .Lxts_enc_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1854 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1855 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1856 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1857 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1858 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1859 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1860 | veor q5, q5, q13 |
| 1861 | mov r5, r1 @ pass rounds |
| 1862 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1863 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1864 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1865 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1866 | vld1.64 {q8,q9}, [r0,:128]! |
| 1867 | vld1.64 {q10,q11}, [r0,:128]! |
| 1868 | veor q0, q0, q8 |
| 1869 | vld1.64 {q12,q13}, [r0,:128]! |
| 1870 | veor q1, q1, q9 |
| 1871 | veor q8, q4, q10 |
| 1872 | vst1.8 {q0,q1}, [r8]! |
| 1873 | veor q9, q6, q11 |
| 1874 | veor q10, q3, q12 |
| 1875 | vst1.8 {q8,q9}, [r8]! |
| 1876 | veor q11, q7, q13 |
| 1877 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1878 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1879 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1880 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1881 | |
| 1882 | @ put this in range for both ARM and Thumb mode adr instructions |
| 1883 | .align 5 |
| 1884 | .Lxts_magic: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1885 | .quad 1, 0x87 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1886 | |
| 1887 | .align 5 |
| 1888 | .Lxts_enc_5: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1889 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1890 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1891 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1892 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1893 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1894 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1895 | veor q4, q4, q12 |
| 1896 | mov r5, r1 @ pass rounds |
| 1897 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1898 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1899 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1900 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1901 | vld1.64 {q8,q9}, [r0,:128]! |
| 1902 | vld1.64 {q10,q11}, [r0,:128]! |
| 1903 | veor q0, q0, q8 |
| 1904 | vld1.64 {q12}, [r0,:128]! |
| 1905 | veor q1, q1, q9 |
| 1906 | veor q8, q4, q10 |
| 1907 | vst1.8 {q0,q1}, [r8]! |
| 1908 | veor q9, q6, q11 |
| 1909 | veor q10, q3, q12 |
| 1910 | vst1.8 {q8,q9}, [r8]! |
| 1911 | vst1.8 {q10}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1912 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1913 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1914 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1915 | .align 4 |
| 1916 | .Lxts_enc_4: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1917 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1918 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1919 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1920 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1921 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1922 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1923 | veor q3, q3, q11 |
| 1924 | mov r5, r1 @ pass rounds |
| 1925 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1926 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1927 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1928 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1929 | vld1.64 {q8,q9}, [r0,:128]! |
| 1930 | vld1.64 {q10,q11}, [r0,:128]! |
| 1931 | veor q0, q0, q8 |
| 1932 | veor q1, q1, q9 |
| 1933 | veor q8, q4, q10 |
| 1934 | vst1.8 {q0,q1}, [r8]! |
| 1935 | veor q9, q6, q11 |
| 1936 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1937 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1938 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1939 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1940 | .align 4 |
| 1941 | .Lxts_enc_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1942 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1943 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1944 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1945 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1946 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1947 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1948 | veor q2, q2, q10 |
| 1949 | mov r5, r1 @ pass rounds |
| 1950 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1951 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1952 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1953 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1954 | vld1.64 {q8,q9}, [r0,:128]! |
| 1955 | vld1.64 {q10}, [r0,:128]! |
| 1956 | veor q0, q0, q8 |
| 1957 | veor q1, q1, q9 |
| 1958 | veor q8, q4, q10 |
| 1959 | vst1.8 {q0,q1}, [r8]! |
| 1960 | vst1.8 {q8}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1961 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1962 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1963 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1964 | .align 4 |
| 1965 | .Lxts_enc_2: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1966 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1967 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1968 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1969 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1970 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1971 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1972 | veor q1, q1, q9 |
| 1973 | mov r5, r1 @ pass rounds |
| 1974 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1975 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1976 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1977 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1978 | vld1.64 {q8,q9}, [r0,:128]! |
| 1979 | veor q0, q0, q8 |
| 1980 | veor q1, q1, q9 |
| 1981 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1982 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1983 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1984 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1985 | .align 4 |
| 1986 | .Lxts_enc_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1987 | mov r0, sp |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 1988 | veor q0, q0, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1989 | mov r1, sp |
| 1990 | vst1.8 {q0}, [sp,:128] |
| 1991 | mov r2, r10 |
| 1992 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1993 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1994 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1995 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1996 | vld1.8 {q0}, [sp,:128] |
| 1997 | veor q0, q0, q8 |
| 1998 | vst1.8 {q0}, [r8]! |
| 1999 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2000 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2001 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2002 | |
| 2003 | .Lxts_enc_done: |
| 2004 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2005 | adds r9, #0x10 |
| 2006 | beq .Lxts_enc_ret |
| 2007 | sub r6, r8, #0x10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2008 | |
| 2009 | .Lxts_enc_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2010 | ldrb r0, [r7], #1 |
| 2011 | ldrb r1, [r8, #-0x10] |
| 2012 | strb r0, [r8, #-0x10] |
| 2013 | strb r1, [r8], #1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2014 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2015 | subs r9, #1 |
| 2016 | bhi .Lxts_enc_steal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2017 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2018 | vld1.8 {q0}, [r6] |
| 2019 | mov r0, sp |
| 2020 | veor q0, q0, q8 |
| 2021 | mov r1, sp |
| 2022 | vst1.8 {q0}, [sp,:128] |
| 2023 | mov r2, r10 |
| 2024 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2025 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2026 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2027 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2028 | vld1.8 {q0}, [sp,:128] |
| 2029 | veor q0, q0, q8 |
| 2030 | vst1.8 {q0}, [r6] |
| 2031 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2032 | #endif |
| 2033 | |
| 2034 | .Lxts_enc_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2035 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2036 | vmov.i32 q0, #0 |
| 2037 | vmov.i32 q1, #0 |
| 2038 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2039 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2040 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2041 | .Lxts_enc_bzero:@ wipe key schedule [if any] |
| 2042 | vstmia sp!, {q0,q1} |
| 2043 | cmp sp, r0 |
| 2044 | bne .Lxts_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2045 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2046 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2047 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2048 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2049 | #endif |
| 2050 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2051 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2052 | |
| 2053 | .size bsaes_xts_encrypt,.-bsaes_xts_encrypt |
| 2054 | |
| 2055 | .globl bsaes_xts_decrypt |
| 2056 | .hidden bsaes_xts_decrypt |
| 2057 | .type bsaes_xts_decrypt,%function |
| 2058 | .align 4 |
| 2059 | bsaes_xts_decrypt: |
| 2060 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2061 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2062 | VFP_ABI_PUSH |
| 2063 | mov r6, sp @ future r3 |
| 2064 | |
| 2065 | mov r7, r0 |
| 2066 | mov r8, r1 |
| 2067 | mov r9, r2 |
| 2068 | mov r10, r3 |
| 2069 | |
| 2070 | sub r0, sp, #0x10 @ 0x10 |
| 2071 | bic r0, #0xf @ align at 16 bytes |
| 2072 | mov sp, r0 |
| 2073 | |
| 2074 | #ifdef XTS_CHAIN_TWEAK |
| 2075 | ldr r0, [ip] @ pointer to input tweak |
| 2076 | #else |
| 2077 | @ generate initial tweak |
| 2078 | ldr r0, [ip, #4] @ iv[] |
| 2079 | mov r1, sp |
| 2080 | ldr r2, [ip, #0] @ key2 |
| 2081 | bl AES_encrypt |
| 2082 | mov r0, sp @ pointer to initial tweak |
| 2083 | #endif |
| 2084 | |
| 2085 | ldr r1, [r10, #240] @ get # of rounds |
| 2086 | mov r3, r6 |
| 2087 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 2088 | @ allocate the key schedule on the stack |
| 2089 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 2090 | @ add r12, #96 @ size of bit-sliced key schedule |
| 2091 | sub r12, #48 @ place for tweak[9] |
| 2092 | |
| 2093 | @ populate the key schedule |
| 2094 | mov r4, r10 @ pass key |
| 2095 | mov r5, r1 @ pass # of rounds |
| 2096 | mov sp, r12 |
| 2097 | add r12, #0x90 @ pass key schedule |
| 2098 | bl _bsaes_key_convert |
| 2099 | add r4, sp, #0x90 |
| 2100 | vldmia r4, {q6} |
| 2101 | vstmia r12, {q15} @ save last round key |
| 2102 | veor q7, q7, q6 @ fix up round 0 key |
| 2103 | vstmia r4, {q7} |
| 2104 | #else |
| 2105 | ldr r12, [r10, #244] |
| 2106 | eors r12, #1 |
| 2107 | beq 0f |
| 2108 | |
| 2109 | str r12, [r10, #244] |
| 2110 | mov r4, r10 @ pass key |
| 2111 | mov r5, r1 @ pass # of rounds |
| 2112 | add r12, r10, #248 @ pass key schedule |
| 2113 | bl _bsaes_key_convert |
| 2114 | add r4, r10, #248 |
| 2115 | vldmia r4, {q6} |
| 2116 | vstmia r12, {q15} @ save last round key |
| 2117 | veor q7, q7, q6 @ fix up round 0 key |
| 2118 | vstmia r4, {q7} |
| 2119 | |
| 2120 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2121 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2122 | #endif |
| 2123 | vld1.8 {q8}, [r0] @ initial tweak |
| 2124 | adr r2, .Lxts_magic |
| 2125 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2126 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2127 | tst r9, #0xf @ if not multiple of 16 |
| 2128 | it ne @ Thumb2 thing, sanity check in ARM |
| 2129 | subne r9, #0x10 @ subtract another 16 bytes |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2130 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2131 | subs r9, #0x80 |
| 2132 | |
| 2133 | blo .Lxts_dec_short |
| 2134 | b .Lxts_dec_loop |
| 2135 | |
| 2136 | .align 4 |
| 2137 | .Lxts_dec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2138 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2139 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2140 | mov r0, sp |
| 2141 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2142 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2143 | vst1.64 {q8}, [r0,:128]! |
| 2144 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2145 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2146 | veor q9, q9, q6 |
| 2147 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2148 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2149 | vst1.64 {q9}, [r0,:128]! |
| 2150 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2151 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2152 | veor q10, q10, q7 |
| 2153 | vand q6, q6, q5 |
| 2154 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2155 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2156 | vst1.64 {q10}, [r0,:128]! |
| 2157 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2158 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2159 | veor q11, q11, q6 |
| 2160 | vand q7, q7, q5 |
| 2161 | vld1.8 {q1}, [r7]! |
| 2162 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2163 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2164 | vst1.64 {q11}, [r0,:128]! |
| 2165 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2166 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2167 | veor q12, q12, q7 |
| 2168 | vand q6, q6, q5 |
| 2169 | vld1.8 {q2}, [r7]! |
| 2170 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2171 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2172 | vst1.64 {q12}, [r0,:128]! |
| 2173 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2174 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2175 | veor q13, q13, q6 |
| 2176 | vand q7, q7, q5 |
| 2177 | vld1.8 {q3}, [r7]! |
| 2178 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2179 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2180 | vst1.64 {q13}, [r0,:128]! |
| 2181 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2182 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2183 | veor q14, q14, q7 |
| 2184 | vand q6, q6, q5 |
| 2185 | vld1.8 {q4}, [r7]! |
| 2186 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2187 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2188 | vst1.64 {q14}, [r0,:128]! |
| 2189 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2190 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2191 | veor q15, q15, q6 |
| 2192 | vand q7, q7, q5 |
| 2193 | vld1.8 {q5}, [r7]! |
| 2194 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2195 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2196 | vst1.64 {q15}, [r0,:128]! |
| 2197 | vswp d15,d14 |
| 2198 | veor q8, q8, q7 |
| 2199 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2200 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2201 | vld1.8 {q6,q7}, [r7]! |
| 2202 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2203 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2204 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2205 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2206 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2207 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2208 | veor q6, q6, q14 |
| 2209 | mov r5, r1 @ pass rounds |
| 2210 | veor q7, q7, q15 |
| 2211 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2212 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2213 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2214 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2215 | vld1.64 {q8,q9}, [r0,:128]! |
| 2216 | vld1.64 {q10,q11}, [r0,:128]! |
| 2217 | veor q0, q0, q8 |
| 2218 | vld1.64 {q12,q13}, [r0,:128]! |
| 2219 | veor q1, q1, q9 |
| 2220 | veor q8, q6, q10 |
| 2221 | vst1.8 {q0,q1}, [r8]! |
| 2222 | veor q9, q4, q11 |
| 2223 | vld1.64 {q14,q15}, [r0,:128]! |
| 2224 | veor q10, q2, q12 |
| 2225 | vst1.8 {q8,q9}, [r8]! |
| 2226 | veor q11, q7, q13 |
| 2227 | veor q12, q3, q14 |
| 2228 | vst1.8 {q10,q11}, [r8]! |
| 2229 | veor q13, q5, q15 |
| 2230 | vst1.8 {q12,q13}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2231 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2232 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2233 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2234 | subs r9, #0x80 |
| 2235 | bpl .Lxts_dec_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2236 | |
| 2237 | .Lxts_dec_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2238 | adds r9, #0x70 |
| 2239 | bmi .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2240 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2241 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2242 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2243 | mov r0, sp |
| 2244 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2245 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2246 | vst1.64 {q8}, [r0,:128]! |
| 2247 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2248 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2249 | veor q9, q9, q7 |
| 2250 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2251 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2252 | vst1.64 {q9}, [r0,:128]! |
| 2253 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2254 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2255 | veor q10, q10, q6 |
| 2256 | vand q7, q7, q5 |
| 2257 | vld1.8 {q0}, [r7]! |
| 2258 | subs r9, #0x10 |
| 2259 | bmi .Lxts_dec_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2260 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2261 | vst1.64 {q10}, [r0,:128]! |
| 2262 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2263 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2264 | veor q11, q11, q7 |
| 2265 | vand q6, q6, q5 |
| 2266 | vld1.8 {q1}, [r7]! |
| 2267 | subs r9, #0x10 |
| 2268 | bmi .Lxts_dec_2 |
| 2269 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2270 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2271 | vst1.64 {q11}, [r0,:128]! |
| 2272 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2273 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2274 | veor q12, q12, q6 |
| 2275 | vand q7, q7, q5 |
| 2276 | vld1.8 {q2}, [r7]! |
| 2277 | subs r9, #0x10 |
| 2278 | bmi .Lxts_dec_3 |
| 2279 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2280 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2281 | vst1.64 {q12}, [r0,:128]! |
| 2282 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2283 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2284 | veor q13, q13, q7 |
| 2285 | vand q6, q6, q5 |
| 2286 | vld1.8 {q3}, [r7]! |
| 2287 | subs r9, #0x10 |
| 2288 | bmi .Lxts_dec_4 |
| 2289 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2290 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2291 | vst1.64 {q13}, [r0,:128]! |
| 2292 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2293 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2294 | veor q14, q14, q6 |
| 2295 | vand q7, q7, q5 |
| 2296 | vld1.8 {q4}, [r7]! |
| 2297 | subs r9, #0x10 |
| 2298 | bmi .Lxts_dec_5 |
| 2299 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2300 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2301 | vst1.64 {q14}, [r0,:128]! |
| 2302 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2303 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2304 | veor q15, q15, q7 |
| 2305 | vand q6, q6, q5 |
| 2306 | vld1.8 {q5}, [r7]! |
| 2307 | subs r9, #0x10 |
| 2308 | bmi .Lxts_dec_6 |
| 2309 | veor q4, q4, q12 |
| 2310 | sub r9, #0x10 |
| 2311 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2312 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2313 | vld1.8 {q6}, [r7]! |
| 2314 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2315 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2316 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2317 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2318 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2319 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2320 | veor q6, q6, q14 |
| 2321 | mov r5, r1 @ pass rounds |
| 2322 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2323 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2324 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2325 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2326 | vld1.64 {q8,q9}, [r0,:128]! |
| 2327 | vld1.64 {q10,q11}, [r0,:128]! |
| 2328 | veor q0, q0, q8 |
| 2329 | vld1.64 {q12,q13}, [r0,:128]! |
| 2330 | veor q1, q1, q9 |
| 2331 | veor q8, q6, q10 |
| 2332 | vst1.8 {q0,q1}, [r8]! |
| 2333 | veor q9, q4, q11 |
| 2334 | vld1.64 {q14}, [r0,:128]! |
| 2335 | veor q10, q2, q12 |
| 2336 | vst1.8 {q8,q9}, [r8]! |
| 2337 | veor q11, q7, q13 |
| 2338 | veor q12, q3, q14 |
| 2339 | vst1.8 {q10,q11}, [r8]! |
| 2340 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2341 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2342 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2343 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2344 | .align 4 |
| 2345 | .Lxts_dec_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2346 | vst1.64 {q14}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2347 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2348 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2349 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2350 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2351 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2352 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2353 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2354 | veor q5, q5, q13 |
| 2355 | mov r5, r1 @ pass rounds |
| 2356 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2357 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2358 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2359 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2360 | vld1.64 {q8,q9}, [r0,:128]! |
| 2361 | vld1.64 {q10,q11}, [r0,:128]! |
| 2362 | veor q0, q0, q8 |
| 2363 | vld1.64 {q12,q13}, [r0,:128]! |
| 2364 | veor q1, q1, q9 |
| 2365 | veor q8, q6, q10 |
| 2366 | vst1.8 {q0,q1}, [r8]! |
| 2367 | veor q9, q4, q11 |
| 2368 | veor q10, q2, q12 |
| 2369 | vst1.8 {q8,q9}, [r8]! |
| 2370 | veor q11, q7, q13 |
| 2371 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2372 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2373 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2374 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2375 | .align 4 |
| 2376 | .Lxts_dec_5: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2377 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2378 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2379 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2380 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2381 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2382 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2383 | veor q4, q4, q12 |
| 2384 | mov r5, r1 @ pass rounds |
| 2385 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2386 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2387 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2388 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2389 | vld1.64 {q8,q9}, [r0,:128]! |
| 2390 | vld1.64 {q10,q11}, [r0,:128]! |
| 2391 | veor q0, q0, q8 |
| 2392 | vld1.64 {q12}, [r0,:128]! |
| 2393 | veor q1, q1, q9 |
| 2394 | veor q8, q6, q10 |
| 2395 | vst1.8 {q0,q1}, [r8]! |
| 2396 | veor q9, q4, q11 |
| 2397 | veor q10, q2, q12 |
| 2398 | vst1.8 {q8,q9}, [r8]! |
| 2399 | vst1.8 {q10}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2400 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2401 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2402 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2403 | .align 4 |
| 2404 | .Lxts_dec_4: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2405 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2406 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2407 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2408 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2409 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2410 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2411 | veor q3, q3, q11 |
| 2412 | mov r5, r1 @ pass rounds |
| 2413 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2414 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2415 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2416 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2417 | vld1.64 {q8,q9}, [r0,:128]! |
| 2418 | vld1.64 {q10,q11}, [r0,:128]! |
| 2419 | veor q0, q0, q8 |
| 2420 | veor q1, q1, q9 |
| 2421 | veor q8, q6, q10 |
| 2422 | vst1.8 {q0,q1}, [r8]! |
| 2423 | veor q9, q4, q11 |
| 2424 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2425 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2426 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2427 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2428 | .align 4 |
| 2429 | .Lxts_dec_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2430 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2431 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2432 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2433 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2434 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2435 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2436 | veor q2, q2, q10 |
| 2437 | mov r5, r1 @ pass rounds |
| 2438 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2439 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2440 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2441 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2442 | vld1.64 {q8,q9}, [r0,:128]! |
| 2443 | vld1.64 {q10}, [r0,:128]! |
| 2444 | veor q0, q0, q8 |
| 2445 | veor q1, q1, q9 |
| 2446 | veor q8, q6, q10 |
| 2447 | vst1.8 {q0,q1}, [r8]! |
| 2448 | vst1.8 {q8}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2449 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2450 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2451 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2452 | .align 4 |
| 2453 | .Lxts_dec_2: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2454 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2455 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2456 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2457 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2458 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2459 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2460 | veor q1, q1, q9 |
| 2461 | mov r5, r1 @ pass rounds |
| 2462 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2463 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2464 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2465 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2466 | vld1.64 {q8,q9}, [r0,:128]! |
| 2467 | veor q0, q0, q8 |
| 2468 | veor q1, q1, q9 |
| 2469 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2470 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2471 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2472 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2473 | .align 4 |
| 2474 | .Lxts_dec_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2475 | mov r0, sp |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 2476 | veor q0, q0, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2477 | mov r1, sp |
| 2478 | vst1.8 {q0}, [sp,:128] |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 2479 | mov r5, r2 @ preserve magic |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2480 | mov r2, r10 |
| 2481 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2482 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2483 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2484 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2485 | vld1.8 {q0}, [sp,:128] |
| 2486 | veor q0, q0, q8 |
| 2487 | vst1.8 {q0}, [r8]! |
| 2488 | mov r3, r4 |
| 2489 | mov r2, r5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2490 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2491 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2492 | |
| 2493 | .Lxts_dec_done: |
| 2494 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2495 | adds r9, #0x10 |
| 2496 | beq .Lxts_dec_ret |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2497 | |
| 2498 | @ calculate one round of extra tweak for the stolen ciphertext |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2499 | vldmia r2, {q5} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2500 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2501 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2502 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2503 | vswp d13,d12 |
| 2504 | veor q9, q9, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2505 | |
| 2506 | @ perform the final decryption with the last tweak value |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2507 | vld1.8 {q0}, [r7]! |
| 2508 | mov r0, sp |
| 2509 | veor q0, q0, q9 |
| 2510 | mov r1, sp |
| 2511 | vst1.8 {q0}, [sp,:128] |
| 2512 | mov r2, r10 |
| 2513 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2514 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2515 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2516 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2517 | vld1.8 {q0}, [sp,:128] |
| 2518 | veor q0, q0, q9 |
| 2519 | vst1.8 {q0}, [r8] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2520 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2521 | mov r6, r8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2522 | .Lxts_dec_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2523 | ldrb r1, [r8] |
| 2524 | ldrb r0, [r7], #1 |
| 2525 | strb r1, [r8, #0x10] |
| 2526 | strb r0, [r8], #1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2527 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2528 | subs r9, #1 |
| 2529 | bhi .Lxts_dec_steal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2530 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2531 | vld1.8 {q0}, [r6] |
| 2532 | mov r0, sp |
| 2533 | veor q0, q8 |
| 2534 | mov r1, sp |
| 2535 | vst1.8 {q0}, [sp,:128] |
| 2536 | mov r2, r10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2537 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2538 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2539 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2540 | vld1.8 {q0}, [sp,:128] |
| 2541 | veor q0, q0, q8 |
| 2542 | vst1.8 {q0}, [r6] |
| 2543 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2544 | #endif |
| 2545 | |
| 2546 | .Lxts_dec_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2547 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2548 | vmov.i32 q0, #0 |
| 2549 | vmov.i32 q1, #0 |
| 2550 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2551 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2552 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2553 | .Lxts_dec_bzero:@ wipe key schedule [if any] |
| 2554 | vstmia sp!, {q0,q1} |
| 2555 | cmp sp, r0 |
| 2556 | bne .Lxts_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2557 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2558 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2559 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2560 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2561 | #endif |
| 2562 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2563 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2564 | |
| 2565 | .size bsaes_xts_decrypt,.-bsaes_xts_decrypt |
| 2566 | #endif |
David Benjamin | 4969cc9 | 2016-04-22 15:02:23 -0400 | [diff] [blame] | 2567 | #endif |