Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1 | |
| 2 | @ ==================================================================== |
| 3 | @ Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| 4 | @ project. The module is, however, dual licensed under OpenSSL and |
| 5 | @ CRYPTOGAMS licenses depending on where you obtain it. For further |
| 6 | @ details see http://www.openssl.org/~appro/cryptogams/. |
| 7 | @ |
| 8 | @ Specific modes and adaptation for Linux kernel by Ard Biesheuvel |
| 9 | @ <ard.biesheuvel@linaro.org>. Permission to use under GPL terms is |
| 10 | @ granted. |
| 11 | @ ==================================================================== |
| 12 | |
| 13 | @ Bit-sliced AES for ARM NEON |
| 14 | @ |
| 15 | @ February 2012. |
| 16 | @ |
| 17 | @ This implementation is direct adaptation of bsaes-x86_64 module for |
| 18 | @ ARM NEON. Except that this module is endian-neutral [in sense that |
| 19 | @ it can be compiled for either endianness] by courtesy of vld1.8's |
| 20 | @ neutrality. Initial version doesn't implement interface to OpenSSL, |
| 21 | @ only low-level primitives and unsupported entry points, just enough |
| 22 | @ to collect performance results, which for Cortex-A8 core are: |
| 23 | @ |
| 24 | @ encrypt 19.5 cycles per byte processed with 128-bit key |
| 25 | @ decrypt 22.1 cycles per byte processed with 128-bit key |
| 26 | @ key conv. 440 cycles per 128-bit key/0.18 of 8x block |
| 27 | @ |
| 28 | @ Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7, |
| 29 | @ which is [much] worse than anticipated (for further details see |
| 30 | @ http://www.openssl.org/~appro/Snapdragon-S4.html). |
| 31 | @ |
| 32 | @ Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code |
| 33 | @ manages in 20.0 cycles]. |
| 34 | @ |
| 35 | @ When comparing to x86_64 results keep in mind that NEON unit is |
| 36 | @ [mostly] single-issue and thus can't [fully] benefit from |
| 37 | @ instruction-level parallelism. And when comparing to aes-armv4 |
| 38 | @ results keep in mind key schedule conversion overhead (see |
| 39 | @ bsaes-x86_64.pl for further details)... |
| 40 | @ |
| 41 | @ <appro@openssl.org> |
| 42 | |
| 43 | @ April-August 2013 |
| 44 | @ |
| 45 | @ Add CBC, CTR and XTS subroutines, adapt for kernel use. |
| 46 | @ |
| 47 | @ <ard.biesheuvel@linaro.org> |
| 48 | |
| 49 | #if defined(__arm__) |
| 50 | #ifndef __KERNEL__ |
| 51 | # include "arm_arch.h" |
| 52 | |
| 53 | # define VFP_ABI_PUSH vstmdb sp!,{d8-d15} |
| 54 | # define VFP_ABI_POP vldmia sp!,{d8-d15} |
| 55 | # define VFP_ABI_FRAME 0x40 |
| 56 | #else |
| 57 | # define VFP_ABI_PUSH |
| 58 | # define VFP_ABI_POP |
| 59 | # define VFP_ABI_FRAME 0 |
| 60 | # define BSAES_ASM_EXTENDED_KEY |
| 61 | # define XTS_CHAIN_TWEAK |
| 62 | # define __ARM_ARCH__ __LINUX_ARM_ARCH__ |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 63 | # define __ARM_MAX_ARCH__ 7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 64 | #endif |
| 65 | |
| 66 | #ifdef __thumb__ |
| 67 | # define adrl adr |
| 68 | #endif |
| 69 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 70 | #if __ARM_MAX_ARCH__>=7 |
| 71 | .arch armv7-a |
| 72 | .fpu neon |
| 73 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 74 | .text |
| 75 | .syntax unified @ ARMv7-capable assembler is expected to handle this |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 76 | #if defined(__thumb2__) && !defined(__APPLE__) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 77 | .thumb |
| 78 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 79 | .code 32 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 80 | #endif |
| 81 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 82 | .type _bsaes_decrypt8,%function |
| 83 | .align 4 |
| 84 | _bsaes_decrypt8: |
| 85 | adr r6,_bsaes_decrypt8 |
| 86 | vldmia r4!, {q9} @ round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 87 | #ifdef __APPLE__ |
| 88 | adr r6,.LM0ISR |
| 89 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 90 | add r6,r6,#.LM0ISR-_bsaes_decrypt8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 91 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 92 | |
| 93 | vldmia r6!, {q8} @ .LM0ISR |
| 94 | veor q10, q0, q9 @ xor with round0 key |
| 95 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 96 | vtbl.8 d0, {q10}, d16 |
| 97 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 98 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 99 | vtbl.8 d2, {q11}, d16 |
| 100 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 101 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 102 | vtbl.8 d4, {q12}, d16 |
| 103 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 104 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 105 | vtbl.8 d6, {q13}, d16 |
| 106 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 107 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 108 | vtbl.8 d8, {q14}, d16 |
| 109 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 110 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 111 | vtbl.8 d10, {q15}, d16 |
| 112 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 113 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 114 | vtbl.8 d12, {q10}, d16 |
| 115 | vtbl.8 d13, {q10}, d17 |
| 116 | vtbl.8 d14, {q11}, d16 |
| 117 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 118 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 119 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 120 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 121 | vshr.u64 q11, q4, #1 |
| 122 | veor q10, q10, q7 |
| 123 | veor q11, q11, q5 |
| 124 | vand q10, q10, q8 |
| 125 | vand q11, q11, q8 |
| 126 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 127 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 128 | veor q5, q5, q11 |
| 129 | vshl.u64 q11, q11, #1 |
| 130 | veor q6, q6, q10 |
| 131 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 132 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 133 | vshr.u64 q11, q0, #1 |
| 134 | veor q10, q10, q3 |
| 135 | veor q11, q11, q1 |
| 136 | vand q10, q10, q8 |
| 137 | vand q11, q11, q8 |
| 138 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 139 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 140 | veor q1, q1, q11 |
| 141 | vshl.u64 q11, q11, #1 |
| 142 | veor q2, q2, q10 |
| 143 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 144 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 145 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 146 | vshr.u64 q11, q4, #2 |
| 147 | veor q10, q10, q7 |
| 148 | veor q11, q11, q6 |
| 149 | vand q10, q10, q9 |
| 150 | vand q11, q11, q9 |
| 151 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 152 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 153 | veor q6, q6, q11 |
| 154 | vshl.u64 q11, q11, #2 |
| 155 | veor q5, q5, q10 |
| 156 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 157 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 158 | vshr.u64 q11, q0, #2 |
| 159 | veor q10, q10, q3 |
| 160 | veor q11, q11, q2 |
| 161 | vand q10, q10, q9 |
| 162 | vand q11, q11, q9 |
| 163 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 164 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 165 | veor q2, q2, q11 |
| 166 | vshl.u64 q11, q11, #2 |
| 167 | veor q1, q1, q10 |
| 168 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 169 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 170 | vshr.u64 q11, q2, #4 |
| 171 | veor q10, q10, q7 |
| 172 | veor q11, q11, q6 |
| 173 | vand q10, q10, q8 |
| 174 | vand q11, q11, q8 |
| 175 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 176 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 177 | veor q6, q6, q11 |
| 178 | vshl.u64 q11, q11, #4 |
| 179 | veor q3, q3, q10 |
| 180 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 181 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 182 | vshr.u64 q11, q0, #4 |
| 183 | veor q10, q10, q5 |
| 184 | veor q11, q11, q4 |
| 185 | vand q10, q10, q8 |
| 186 | vand q11, q11, q8 |
| 187 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 188 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 189 | veor q4, q4, q11 |
| 190 | vshl.u64 q11, q11, #4 |
| 191 | veor q1, q1, q10 |
| 192 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 193 | sub r5,r5,#1 |
| 194 | b .Ldec_sbox |
| 195 | .align 4 |
| 196 | .Ldec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 197 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 198 | veor q8, q8, q0 |
| 199 | veor q9, q9, q1 |
| 200 | vtbl.8 d0, {q8}, d24 |
| 201 | vtbl.8 d1, {q8}, d25 |
| 202 | vldmia r4!, {q8} |
| 203 | veor q10, q10, q2 |
| 204 | vtbl.8 d2, {q9}, d24 |
| 205 | vtbl.8 d3, {q9}, d25 |
| 206 | vldmia r4!, {q9} |
| 207 | veor q11, q11, q3 |
| 208 | vtbl.8 d4, {q10}, d24 |
| 209 | vtbl.8 d5, {q10}, d25 |
| 210 | vldmia r4!, {q10} |
| 211 | vtbl.8 d6, {q11}, d24 |
| 212 | vtbl.8 d7, {q11}, d25 |
| 213 | vldmia r4!, {q11} |
| 214 | veor q8, q8, q4 |
| 215 | veor q9, q9, q5 |
| 216 | vtbl.8 d8, {q8}, d24 |
| 217 | vtbl.8 d9, {q8}, d25 |
| 218 | veor q10, q10, q6 |
| 219 | vtbl.8 d10, {q9}, d24 |
| 220 | vtbl.8 d11, {q9}, d25 |
| 221 | veor q11, q11, q7 |
| 222 | vtbl.8 d12, {q10}, d24 |
| 223 | vtbl.8 d13, {q10}, d25 |
| 224 | vtbl.8 d14, {q11}, d24 |
| 225 | vtbl.8 d15, {q11}, d25 |
| 226 | .Ldec_sbox: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 227 | veor q1, q1, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 228 | veor q3, q3, q4 |
| 229 | |
| 230 | veor q4, q4, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 231 | veor q1, q1, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 232 | veor q2, q2, q7 |
| 233 | veor q6, q6, q4 |
| 234 | |
| 235 | veor q0, q0, q1 |
| 236 | veor q2, q2, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 237 | veor q7, q7, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 238 | veor q3, q3, q0 |
| 239 | veor q5, q5, q0 |
| 240 | veor q1, q1, q3 |
| 241 | veor q11, q3, q0 |
| 242 | veor q10, q7, q4 |
| 243 | veor q9, q1, q6 |
| 244 | veor q13, q4, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 245 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 246 | veor q12, q5, q2 |
| 247 | |
| 248 | vorr q10, q10, q9 |
| 249 | veor q15, q11, q8 |
| 250 | vand q14, q11, q12 |
| 251 | vorr q11, q11, q12 |
| 252 | veor q12, q12, q9 |
| 253 | vand q8, q8, q9 |
| 254 | veor q9, q6, q2 |
| 255 | vand q15, q15, q12 |
| 256 | vand q13, q13, q9 |
| 257 | veor q9, q3, q7 |
| 258 | veor q12, q1, q5 |
| 259 | veor q11, q11, q13 |
| 260 | veor q10, q10, q13 |
| 261 | vand q13, q9, q12 |
| 262 | vorr q9, q9, q12 |
| 263 | veor q11, q11, q15 |
| 264 | veor q8, q8, q13 |
| 265 | veor q10, q10, q14 |
| 266 | veor q9, q9, q15 |
| 267 | veor q8, q8, q14 |
| 268 | vand q12, q4, q6 |
| 269 | veor q9, q9, q14 |
| 270 | vand q13, q0, q2 |
| 271 | vand q14, q7, q1 |
| 272 | vorr q15, q3, q5 |
| 273 | veor q11, q11, q12 |
| 274 | veor q9, q9, q14 |
| 275 | veor q8, q8, q15 |
| 276 | veor q10, q10, q13 |
| 277 | |
| 278 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 279 | |
| 280 | @ new smaller inversion |
| 281 | |
| 282 | vand q14, q11, q9 |
| 283 | vmov q12, q8 |
| 284 | |
| 285 | veor q13, q10, q14 |
| 286 | veor q15, q8, q14 |
| 287 | veor q14, q8, q14 @ q14=q15 |
| 288 | |
| 289 | vbsl q13, q9, q8 |
| 290 | vbsl q15, q11, q10 |
| 291 | veor q11, q11, q10 |
| 292 | |
| 293 | vbsl q12, q13, q14 |
| 294 | vbsl q8, q14, q13 |
| 295 | |
| 296 | vand q14, q12, q15 |
| 297 | veor q9, q9, q8 |
| 298 | |
| 299 | veor q14, q14, q11 |
| 300 | veor q12, q5, q2 |
| 301 | veor q8, q1, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 302 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 303 | vand q10, q10, q5 |
| 304 | veor q5, q5, q1 |
| 305 | vand q11, q1, q15 |
| 306 | vand q5, q5, q14 |
| 307 | veor q1, q11, q10 |
| 308 | veor q5, q5, q11 |
| 309 | veor q15, q15, q13 |
| 310 | veor q14, q14, q9 |
| 311 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 312 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 313 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 314 | vand q10, q10, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 315 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 316 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 317 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 318 | vand q6, q6, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 319 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 320 | vand q2, q2, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 321 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 322 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 323 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 324 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 325 | veor q5, q5, q12 |
| 326 | veor q2, q2, q12 |
| 327 | veor q1, q1, q8 |
| 328 | veor q6, q6, q8 |
| 329 | |
| 330 | veor q12, q3, q0 |
| 331 | veor q8, q7, q4 |
| 332 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 333 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 334 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 335 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 336 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 337 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 338 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 339 | vand q4, q4, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 340 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 341 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 342 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 343 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 344 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 345 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 346 | veor q15, q15, q13 |
| 347 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 348 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 349 | vand q10, q10, q3 |
| 350 | veor q3, q3, q7 |
| 351 | vand q11, q7, q15 |
| 352 | vand q3, q3, q14 |
| 353 | veor q7, q11, q10 |
| 354 | veor q3, q3, q11 |
| 355 | veor q3, q3, q12 |
| 356 | veor q0, q0, q12 |
| 357 | veor q7, q7, q8 |
| 358 | veor q4, q4, q8 |
| 359 | veor q1, q1, q7 |
| 360 | veor q6, q6, q5 |
| 361 | |
| 362 | veor q4, q4, q1 |
| 363 | veor q2, q2, q7 |
| 364 | veor q5, q5, q7 |
| 365 | veor q4, q4, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 366 | veor q7, q7, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 367 | veor q4, q4, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 368 | veor q3, q3, q6 |
| 369 | veor q6, q6, q1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 370 | veor q3, q3, q4 |
| 371 | |
| 372 | veor q4, q4, q0 |
| 373 | veor q7, q7, q3 |
| 374 | subs r5,r5,#1 |
| 375 | bcc .Ldec_done |
| 376 | @ multiplication by 0x05-0x00-0x04-0x00 |
| 377 | vext.8 q8, q0, q0, #8 |
| 378 | vext.8 q14, q3, q3, #8 |
| 379 | vext.8 q15, q5, q5, #8 |
| 380 | veor q8, q8, q0 |
| 381 | vext.8 q9, q1, q1, #8 |
| 382 | veor q14, q14, q3 |
| 383 | vext.8 q10, q6, q6, #8 |
| 384 | veor q15, q15, q5 |
| 385 | vext.8 q11, q4, q4, #8 |
| 386 | veor q9, q9, q1 |
| 387 | vext.8 q12, q2, q2, #8 |
| 388 | veor q10, q10, q6 |
| 389 | vext.8 q13, q7, q7, #8 |
| 390 | veor q11, q11, q4 |
| 391 | veor q12, q12, q2 |
| 392 | veor q13, q13, q7 |
| 393 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 394 | veor q0, q0, q14 |
| 395 | veor q1, q1, q14 |
| 396 | veor q6, q6, q8 |
| 397 | veor q2, q2, q10 |
| 398 | veor q4, q4, q9 |
| 399 | veor q1, q1, q15 |
| 400 | veor q6, q6, q15 |
| 401 | veor q2, q2, q14 |
| 402 | veor q7, q7, q11 |
| 403 | veor q4, q4, q14 |
| 404 | veor q3, q3, q12 |
| 405 | veor q2, q2, q15 |
| 406 | veor q7, q7, q15 |
| 407 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 408 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 409 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 410 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 411 | vext.8 q10, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 412 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 413 | vext.8 q11, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 414 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 415 | vext.8 q12, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 416 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 417 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 418 | veor q2, q2, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 419 | vext.8 q14, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 420 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 421 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 422 | veor q3, q3, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 423 | |
| 424 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 425 | veor q5, q5, q15 |
| 426 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 427 | veor q10, q10, q1 |
| 428 | veor q8, q8, q5 |
| 429 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 430 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 431 | veor q13, q13, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 432 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 433 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 434 | veor q1, q1, q9 |
| 435 | vext.8 q8, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 436 | veor q12, q12, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 437 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 438 | veor q15, q15, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 439 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 440 | veor q11, q11, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 441 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 442 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 443 | vext.8 q4, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 444 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 445 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 446 | veor q5, q9, q13 |
| 447 | veor q11, q11, q2 |
| 448 | veor q7, q7, q15 |
| 449 | veor q6, q4, q14 |
| 450 | veor q4, q8, q12 |
| 451 | veor q2, q3, q10 |
| 452 | vmov q3, q11 |
| 453 | @ vmov q5, q9 |
| 454 | vldmia r6, {q12} @ .LISR |
| 455 | ite eq @ Thumb2 thing, sanity check in ARM |
| 456 | addeq r6,r6,#0x10 |
| 457 | bne .Ldec_loop |
| 458 | vldmia r6, {q12} @ .LISRM0 |
| 459 | b .Ldec_loop |
| 460 | .align 4 |
| 461 | .Ldec_done: |
| 462 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 463 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 464 | vshr.u64 q10, q3, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 465 | vshr.u64 q11, q2, #1 |
| 466 | veor q10, q10, q5 |
| 467 | veor q11, q11, q7 |
| 468 | vand q10, q10, q8 |
| 469 | vand q11, q11, q8 |
| 470 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 471 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 472 | veor q7, q7, q11 |
| 473 | vshl.u64 q11, q11, #1 |
| 474 | veor q3, q3, q10 |
| 475 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 476 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 477 | vshr.u64 q11, q0, #1 |
| 478 | veor q10, q10, q4 |
| 479 | veor q11, q11, q1 |
| 480 | vand q10, q10, q8 |
| 481 | vand q11, q11, q8 |
| 482 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 483 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 484 | veor q1, q1, q11 |
| 485 | vshl.u64 q11, q11, #1 |
| 486 | veor q6, q6, q10 |
| 487 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 488 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 489 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 490 | vshr.u64 q11, q2, #2 |
| 491 | veor q10, q10, q5 |
| 492 | veor q11, q11, q3 |
| 493 | vand q10, q10, q9 |
| 494 | vand q11, q11, q9 |
| 495 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 496 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 497 | veor q3, q3, q11 |
| 498 | vshl.u64 q11, q11, #2 |
| 499 | veor q7, q7, q10 |
| 500 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 501 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 502 | vshr.u64 q11, q0, #2 |
| 503 | veor q10, q10, q4 |
| 504 | veor q11, q11, q6 |
| 505 | vand q10, q10, q9 |
| 506 | vand q11, q11, q9 |
| 507 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 508 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 509 | veor q6, q6, q11 |
| 510 | vshl.u64 q11, q11, #2 |
| 511 | veor q1, q1, q10 |
| 512 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 513 | vshr.u64 q10, q4, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 514 | vshr.u64 q11, q6, #4 |
| 515 | veor q10, q10, q5 |
| 516 | veor q11, q11, q3 |
| 517 | vand q10, q10, q8 |
| 518 | vand q11, q11, q8 |
| 519 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 520 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 521 | veor q3, q3, q11 |
| 522 | vshl.u64 q11, q11, #4 |
| 523 | veor q4, q4, q10 |
| 524 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 525 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 526 | vshr.u64 q11, q0, #4 |
| 527 | veor q10, q10, q7 |
| 528 | veor q11, q11, q2 |
| 529 | vand q10, q10, q8 |
| 530 | vand q11, q11, q8 |
| 531 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 532 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 533 | veor q2, q2, q11 |
| 534 | vshl.u64 q11, q11, #4 |
| 535 | veor q1, q1, q10 |
| 536 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 537 | vldmia r4, {q8} @ last round key |
| 538 | veor q6, q6, q8 |
| 539 | veor q4, q4, q8 |
| 540 | veor q2, q2, q8 |
| 541 | veor q7, q7, q8 |
| 542 | veor q3, q3, q8 |
| 543 | veor q5, q5, q8 |
| 544 | veor q0, q0, q8 |
| 545 | veor q1, q1, q8 |
| 546 | bx lr |
| 547 | .size _bsaes_decrypt8,.-_bsaes_decrypt8 |
| 548 | |
| 549 | .type _bsaes_const,%object |
| 550 | .align 6 |
| 551 | _bsaes_const: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 552 | .LM0ISR:@ InvShiftRows constants |
| 553 | .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 554 | .LISR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 555 | .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 556 | .LISRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 557 | .quad 0x01040b0e0205080f, 0x0306090c00070a0d |
| 558 | .LM0SR:@ ShiftRows constants |
| 559 | .quad 0x0a0e02060f03070b, 0x0004080c05090d01 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 560 | .LSR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 561 | .quad 0x0504070600030201, 0x0f0e0d0c0a09080b |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 562 | .LSRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 563 | .quad 0x0304090e00050a0f, 0x01060b0c0207080d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 564 | .LM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 565 | .quad 0x02060a0e03070b0f, 0x0004080c0105090d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 566 | .LREVM0SR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 567 | .quad 0x090d01050c000408, 0x03070b0f060a0e02 |
| 568 | .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 |
| 569 | .align 2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 570 | .align 6 |
| 571 | .size _bsaes_const,.-_bsaes_const |
| 572 | |
| 573 | .type _bsaes_encrypt8,%function |
| 574 | .align 4 |
| 575 | _bsaes_encrypt8: |
| 576 | adr r6,_bsaes_encrypt8 |
| 577 | vldmia r4!, {q9} @ round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 578 | #ifdef __APPLE__ |
| 579 | adr r6,.LM0SR |
| 580 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 581 | sub r6,r6,#_bsaes_encrypt8-.LM0SR |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 582 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 583 | |
| 584 | vldmia r6!, {q8} @ .LM0SR |
| 585 | _bsaes_encrypt8_alt: |
| 586 | veor q10, q0, q9 @ xor with round0 key |
| 587 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 588 | vtbl.8 d0, {q10}, d16 |
| 589 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 590 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 591 | vtbl.8 d2, {q11}, d16 |
| 592 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 593 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 594 | vtbl.8 d4, {q12}, d16 |
| 595 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 596 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 597 | vtbl.8 d6, {q13}, d16 |
| 598 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 599 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 600 | vtbl.8 d8, {q14}, d16 |
| 601 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 602 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 603 | vtbl.8 d10, {q15}, d16 |
| 604 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 605 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 606 | vtbl.8 d12, {q10}, d16 |
| 607 | vtbl.8 d13, {q10}, d17 |
| 608 | vtbl.8 d14, {q11}, d16 |
| 609 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 610 | _bsaes_encrypt8_bitslice: |
| 611 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 612 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 613 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 614 | vshr.u64 q11, q4, #1 |
| 615 | veor q10, q10, q7 |
| 616 | veor q11, q11, q5 |
| 617 | vand q10, q10, q8 |
| 618 | vand q11, q11, q8 |
| 619 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 620 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 621 | veor q5, q5, q11 |
| 622 | vshl.u64 q11, q11, #1 |
| 623 | veor q6, q6, q10 |
| 624 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 625 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 626 | vshr.u64 q11, q0, #1 |
| 627 | veor q10, q10, q3 |
| 628 | veor q11, q11, q1 |
| 629 | vand q10, q10, q8 |
| 630 | vand q11, q11, q8 |
| 631 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 632 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 633 | veor q1, q1, q11 |
| 634 | vshl.u64 q11, q11, #1 |
| 635 | veor q2, q2, q10 |
| 636 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 637 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 638 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 639 | vshr.u64 q11, q4, #2 |
| 640 | veor q10, q10, q7 |
| 641 | veor q11, q11, q6 |
| 642 | vand q10, q10, q9 |
| 643 | vand q11, q11, q9 |
| 644 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 645 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 646 | veor q6, q6, q11 |
| 647 | vshl.u64 q11, q11, #2 |
| 648 | veor q5, q5, q10 |
| 649 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 650 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 651 | vshr.u64 q11, q0, #2 |
| 652 | veor q10, q10, q3 |
| 653 | veor q11, q11, q2 |
| 654 | vand q10, q10, q9 |
| 655 | vand q11, q11, q9 |
| 656 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 657 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 658 | veor q2, q2, q11 |
| 659 | vshl.u64 q11, q11, #2 |
| 660 | veor q1, q1, q10 |
| 661 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 662 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 663 | vshr.u64 q11, q2, #4 |
| 664 | veor q10, q10, q7 |
| 665 | veor q11, q11, q6 |
| 666 | vand q10, q10, q8 |
| 667 | vand q11, q11, q8 |
| 668 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 669 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 670 | veor q6, q6, q11 |
| 671 | vshl.u64 q11, q11, #4 |
| 672 | veor q3, q3, q10 |
| 673 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 674 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 675 | vshr.u64 q11, q0, #4 |
| 676 | veor q10, q10, q5 |
| 677 | veor q11, q11, q4 |
| 678 | vand q10, q10, q8 |
| 679 | vand q11, q11, q8 |
| 680 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 681 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 682 | veor q4, q4, q11 |
| 683 | vshl.u64 q11, q11, #4 |
| 684 | veor q1, q1, q10 |
| 685 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 686 | sub r5,r5,#1 |
| 687 | b .Lenc_sbox |
| 688 | .align 4 |
| 689 | .Lenc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 690 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 691 | veor q8, q8, q0 |
| 692 | veor q9, q9, q1 |
| 693 | vtbl.8 d0, {q8}, d24 |
| 694 | vtbl.8 d1, {q8}, d25 |
| 695 | vldmia r4!, {q8} |
| 696 | veor q10, q10, q2 |
| 697 | vtbl.8 d2, {q9}, d24 |
| 698 | vtbl.8 d3, {q9}, d25 |
| 699 | vldmia r4!, {q9} |
| 700 | veor q11, q11, q3 |
| 701 | vtbl.8 d4, {q10}, d24 |
| 702 | vtbl.8 d5, {q10}, d25 |
| 703 | vldmia r4!, {q10} |
| 704 | vtbl.8 d6, {q11}, d24 |
| 705 | vtbl.8 d7, {q11}, d25 |
| 706 | vldmia r4!, {q11} |
| 707 | veor q8, q8, q4 |
| 708 | veor q9, q9, q5 |
| 709 | vtbl.8 d8, {q8}, d24 |
| 710 | vtbl.8 d9, {q8}, d25 |
| 711 | veor q10, q10, q6 |
| 712 | vtbl.8 d10, {q9}, d24 |
| 713 | vtbl.8 d11, {q9}, d25 |
| 714 | veor q11, q11, q7 |
| 715 | vtbl.8 d12, {q10}, d24 |
| 716 | vtbl.8 d13, {q10}, d25 |
| 717 | vtbl.8 d14, {q11}, d24 |
| 718 | vtbl.8 d15, {q11}, d25 |
| 719 | .Lenc_sbox: |
| 720 | veor q2, q2, q1 |
| 721 | veor q5, q5, q6 |
| 722 | veor q3, q3, q0 |
| 723 | veor q6, q6, q2 |
| 724 | veor q5, q5, q0 |
| 725 | |
| 726 | veor q6, q6, q3 |
| 727 | veor q3, q3, q7 |
| 728 | veor q7, q7, q5 |
| 729 | veor q3, q3, q4 |
| 730 | veor q4, q4, q5 |
| 731 | |
| 732 | veor q2, q2, q7 |
| 733 | veor q3, q3, q1 |
| 734 | veor q1, q1, q5 |
| 735 | veor q11, q7, q4 |
| 736 | veor q10, q1, q2 |
| 737 | veor q9, q5, q3 |
| 738 | veor q13, q2, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 739 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 740 | veor q12, q6, q0 |
| 741 | |
| 742 | vorr q10, q10, q9 |
| 743 | veor q15, q11, q8 |
| 744 | vand q14, q11, q12 |
| 745 | vorr q11, q11, q12 |
| 746 | veor q12, q12, q9 |
| 747 | vand q8, q8, q9 |
| 748 | veor q9, q3, q0 |
| 749 | vand q15, q15, q12 |
| 750 | vand q13, q13, q9 |
| 751 | veor q9, q7, q1 |
| 752 | veor q12, q5, q6 |
| 753 | veor q11, q11, q13 |
| 754 | veor q10, q10, q13 |
| 755 | vand q13, q9, q12 |
| 756 | vorr q9, q9, q12 |
| 757 | veor q11, q11, q15 |
| 758 | veor q8, q8, q13 |
| 759 | veor q10, q10, q14 |
| 760 | veor q9, q9, q15 |
| 761 | veor q8, q8, q14 |
| 762 | vand q12, q2, q3 |
| 763 | veor q9, q9, q14 |
| 764 | vand q13, q4, q0 |
| 765 | vand q14, q1, q5 |
| 766 | vorr q15, q7, q6 |
| 767 | veor q11, q11, q12 |
| 768 | veor q9, q9, q14 |
| 769 | veor q8, q8, q15 |
| 770 | veor q10, q10, q13 |
| 771 | |
| 772 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 773 | |
| 774 | @ new smaller inversion |
| 775 | |
| 776 | vand q14, q11, q9 |
| 777 | vmov q12, q8 |
| 778 | |
| 779 | veor q13, q10, q14 |
| 780 | veor q15, q8, q14 |
| 781 | veor q14, q8, q14 @ q14=q15 |
| 782 | |
| 783 | vbsl q13, q9, q8 |
| 784 | vbsl q15, q11, q10 |
| 785 | veor q11, q11, q10 |
| 786 | |
| 787 | vbsl q12, q13, q14 |
| 788 | vbsl q8, q14, q13 |
| 789 | |
| 790 | vand q14, q12, q15 |
| 791 | veor q9, q9, q8 |
| 792 | |
| 793 | veor q14, q14, q11 |
| 794 | veor q12, q6, q0 |
| 795 | veor q8, q5, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 796 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 797 | vand q10, q10, q6 |
| 798 | veor q6, q6, q5 |
| 799 | vand q11, q5, q15 |
| 800 | vand q6, q6, q14 |
| 801 | veor q5, q11, q10 |
| 802 | veor q6, q6, q11 |
| 803 | veor q15, q15, q13 |
| 804 | veor q14, q14, q9 |
| 805 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 806 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 807 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 808 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 809 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 810 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 811 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 812 | vand q3, q3, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 813 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 814 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 815 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 816 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 817 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 818 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 819 | veor q6, q6, q12 |
| 820 | veor q0, q0, q12 |
| 821 | veor q5, q5, q8 |
| 822 | veor q3, q3, q8 |
| 823 | |
| 824 | veor q12, q7, q4 |
| 825 | veor q8, q1, q2 |
| 826 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 827 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 828 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 829 | vand q10, q10, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 830 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 831 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 832 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 833 | vand q2, q2, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 834 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 835 | vand q4, q4, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 836 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 837 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 838 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 839 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 840 | veor q15, q15, q13 |
| 841 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 842 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 843 | vand q10, q10, q7 |
| 844 | veor q7, q7, q1 |
| 845 | vand q11, q1, q15 |
| 846 | vand q7, q7, q14 |
| 847 | veor q1, q11, q10 |
| 848 | veor q7, q7, q11 |
| 849 | veor q7, q7, q12 |
| 850 | veor q4, q4, q12 |
| 851 | veor q1, q1, q8 |
| 852 | veor q2, q2, q8 |
| 853 | veor q7, q7, q0 |
| 854 | veor q1, q1, q6 |
| 855 | veor q6, q6, q0 |
| 856 | veor q4, q4, q7 |
| 857 | veor q0, q0, q1 |
| 858 | |
| 859 | veor q1, q1, q5 |
| 860 | veor q5, q5, q2 |
| 861 | veor q2, q2, q3 |
| 862 | veor q3, q3, q5 |
| 863 | veor q4, q4, q5 |
| 864 | |
| 865 | veor q6, q6, q3 |
| 866 | subs r5,r5,#1 |
| 867 | bcc .Lenc_done |
| 868 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 869 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 870 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 871 | vext.8 q10, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 872 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 873 | vext.8 q11, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 874 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 875 | vext.8 q12, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 876 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 877 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 878 | veor q3, q3, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 879 | vext.8 q14, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 880 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 881 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 882 | veor q2, q2, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 883 | |
| 884 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 885 | veor q5, q5, q15 |
| 886 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 887 | veor q10, q10, q1 |
| 888 | veor q8, q8, q5 |
| 889 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 890 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 891 | veor q13, q13, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 892 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 893 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 894 | veor q1, q1, q9 |
| 895 | vext.8 q8, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 896 | veor q12, q12, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 897 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 898 | veor q15, q15, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 899 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 900 | veor q11, q11, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 901 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 902 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 903 | vext.8 q6, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 904 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 905 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 906 | veor q5, q9, q13 |
| 907 | veor q4, q8, q12 |
| 908 | veor q3, q3, q11 |
| 909 | veor q7, q7, q15 |
| 910 | veor q6, q6, q14 |
| 911 | @ vmov q4, q8 |
| 912 | veor q2, q2, q10 |
| 913 | @ vmov q5, q9 |
| 914 | vldmia r6, {q12} @ .LSR |
| 915 | ite eq @ Thumb2 thing, samity check in ARM |
| 916 | addeq r6,r6,#0x10 |
| 917 | bne .Lenc_loop |
| 918 | vldmia r6, {q12} @ .LSRM0 |
| 919 | b .Lenc_loop |
| 920 | .align 4 |
| 921 | .Lenc_done: |
| 922 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 923 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 924 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 925 | vshr.u64 q11, q3, #1 |
| 926 | veor q10, q10, q5 |
| 927 | veor q11, q11, q7 |
| 928 | vand q10, q10, q8 |
| 929 | vand q11, q11, q8 |
| 930 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 931 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 932 | veor q7, q7, q11 |
| 933 | vshl.u64 q11, q11, #1 |
| 934 | veor q2, q2, q10 |
| 935 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 936 | vshr.u64 q10, q4, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 937 | vshr.u64 q11, q0, #1 |
| 938 | veor q10, q10, q6 |
| 939 | veor q11, q11, q1 |
| 940 | vand q10, q10, q8 |
| 941 | vand q11, q11, q8 |
| 942 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 943 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 944 | veor q1, q1, q11 |
| 945 | vshl.u64 q11, q11, #1 |
| 946 | veor q4, q4, q10 |
| 947 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 948 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 949 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 950 | vshr.u64 q11, q3, #2 |
| 951 | veor q10, q10, q5 |
| 952 | veor q11, q11, q2 |
| 953 | vand q10, q10, q9 |
| 954 | vand q11, q11, q9 |
| 955 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 956 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 957 | veor q2, q2, q11 |
| 958 | vshl.u64 q11, q11, #2 |
| 959 | veor q7, q7, q10 |
| 960 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 961 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 962 | vshr.u64 q11, q0, #2 |
| 963 | veor q10, q10, q6 |
| 964 | veor q11, q11, q4 |
| 965 | vand q10, q10, q9 |
| 966 | vand q11, q11, q9 |
| 967 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 968 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 969 | veor q4, q4, q11 |
| 970 | vshl.u64 q11, q11, #2 |
| 971 | veor q1, q1, q10 |
| 972 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 973 | vshr.u64 q10, q6, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 974 | vshr.u64 q11, q4, #4 |
| 975 | veor q10, q10, q5 |
| 976 | veor q11, q11, q2 |
| 977 | vand q10, q10, q8 |
| 978 | vand q11, q11, q8 |
| 979 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 980 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 981 | veor q2, q2, q11 |
| 982 | vshl.u64 q11, q11, #4 |
| 983 | veor q6, q6, q10 |
| 984 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 985 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 986 | vshr.u64 q11, q0, #4 |
| 987 | veor q10, q10, q7 |
| 988 | veor q11, q11, q3 |
| 989 | vand q10, q10, q8 |
| 990 | vand q11, q11, q8 |
| 991 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 992 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 993 | veor q3, q3, q11 |
| 994 | vshl.u64 q11, q11, #4 |
| 995 | veor q1, q1, q10 |
| 996 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 997 | vldmia r4, {q8} @ last round key |
| 998 | veor q4, q4, q8 |
| 999 | veor q6, q6, q8 |
| 1000 | veor q3, q3, q8 |
| 1001 | veor q7, q7, q8 |
| 1002 | veor q2, q2, q8 |
| 1003 | veor q5, q5, q8 |
| 1004 | veor q0, q0, q8 |
| 1005 | veor q1, q1, q8 |
| 1006 | bx lr |
| 1007 | .size _bsaes_encrypt8,.-_bsaes_encrypt8 |
| 1008 | .type _bsaes_key_convert,%function |
| 1009 | .align 4 |
| 1010 | _bsaes_key_convert: |
| 1011 | adr r6,_bsaes_key_convert |
| 1012 | vld1.8 {q7}, [r4]! @ load round 0 key |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1013 | #ifdef __APPLE__ |
| 1014 | adr r6,.LM0 |
| 1015 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1016 | sub r6,r6,#_bsaes_key_convert-.LM0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1017 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1018 | vld1.8 {q15}, [r4]! @ load round 1 key |
| 1019 | |
| 1020 | vmov.i8 q8, #0x01 @ bit masks |
| 1021 | vmov.i8 q9, #0x02 |
| 1022 | vmov.i8 q10, #0x04 |
| 1023 | vmov.i8 q11, #0x08 |
| 1024 | vmov.i8 q12, #0x10 |
| 1025 | vmov.i8 q13, #0x20 |
| 1026 | vldmia r6, {q14} @ .LM0 |
| 1027 | |
| 1028 | #ifdef __ARMEL__ |
| 1029 | vrev32.8 q7, q7 |
| 1030 | vrev32.8 q15, q15 |
| 1031 | #endif |
| 1032 | sub r5,r5,#1 |
| 1033 | vstmia r12!, {q7} @ save round 0 key |
| 1034 | b .Lkey_loop |
| 1035 | |
| 1036 | .align 4 |
| 1037 | .Lkey_loop: |
| 1038 | vtbl.8 d14,{q15},d28 |
| 1039 | vtbl.8 d15,{q15},d29 |
| 1040 | vmov.i8 q6, #0x40 |
| 1041 | vmov.i8 q15, #0x80 |
| 1042 | |
| 1043 | vtst.8 q0, q7, q8 |
| 1044 | vtst.8 q1, q7, q9 |
| 1045 | vtst.8 q2, q7, q10 |
| 1046 | vtst.8 q3, q7, q11 |
| 1047 | vtst.8 q4, q7, q12 |
| 1048 | vtst.8 q5, q7, q13 |
| 1049 | vtst.8 q6, q7, q6 |
| 1050 | vtst.8 q7, q7, q15 |
| 1051 | vld1.8 {q15}, [r4]! @ load next round key |
| 1052 | vmvn q0, q0 @ "pnot" |
| 1053 | vmvn q1, q1 |
| 1054 | vmvn q5, q5 |
| 1055 | vmvn q6, q6 |
| 1056 | #ifdef __ARMEL__ |
| 1057 | vrev32.8 q15, q15 |
| 1058 | #endif |
| 1059 | subs r5,r5,#1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1060 | 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] | 1061 | bne .Lkey_loop |
| 1062 | |
| 1063 | vmov.i8 q7,#0x63 @ compose .L63 |
| 1064 | @ don't save last round key |
| 1065 | bx lr |
| 1066 | .size _bsaes_key_convert,.-_bsaes_key_convert |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1067 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1068 | |
| 1069 | |
| 1070 | .globl bsaes_cbc_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1071 | .hidden bsaes_cbc_encrypt |
| 1072 | .type bsaes_cbc_encrypt,%function |
| 1073 | .align 5 |
| 1074 | bsaes_cbc_encrypt: |
| 1075 | #ifndef __KERNEL__ |
| 1076 | cmp r2, #128 |
| 1077 | #ifndef __thumb__ |
| 1078 | blo AES_cbc_encrypt |
| 1079 | #else |
| 1080 | bhs 1f |
| 1081 | b AES_cbc_encrypt |
| 1082 | 1: |
| 1083 | #endif |
| 1084 | #endif |
| 1085 | |
| 1086 | @ it is up to the caller to make sure we are called with enc == 0 |
| 1087 | |
| 1088 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1089 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1090 | VFP_ABI_PUSH |
| 1091 | ldr r8, [ip] @ IV is 1st arg on the stack |
| 1092 | mov r2, r2, lsr#4 @ len in 16 byte blocks |
| 1093 | sub sp, #0x10 @ scratch space to carry over the IV |
| 1094 | mov r9, sp @ save sp |
| 1095 | |
| 1096 | ldr r10, [r3, #240] @ get # of rounds |
| 1097 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1098 | @ allocate the key schedule on the stack |
| 1099 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1100 | add r12, #96 @ sifze of bit-slices key schedule |
| 1101 | |
| 1102 | @ populate the key schedule |
| 1103 | mov r4, r3 @ pass key |
| 1104 | mov r5, r10 @ pass # of rounds |
| 1105 | mov sp, r12 @ sp is sp |
| 1106 | bl _bsaes_key_convert |
| 1107 | vldmia sp, {q6} |
| 1108 | vstmia r12, {q15} @ save last round key |
| 1109 | veor q7, q7, q6 @ fix up round 0 key |
| 1110 | vstmia sp, {q7} |
| 1111 | #else |
| 1112 | ldr r12, [r3, #244] |
| 1113 | eors r12, #1 |
| 1114 | beq 0f |
| 1115 | |
| 1116 | @ populate the key schedule |
| 1117 | str r12, [r3, #244] |
| 1118 | mov r4, r3 @ pass key |
| 1119 | mov r5, r10 @ pass # of rounds |
| 1120 | add r12, r3, #248 @ pass key schedule |
| 1121 | bl _bsaes_key_convert |
| 1122 | add r4, r3, #248 |
| 1123 | vldmia r4, {q6} |
| 1124 | vstmia r12, {q15} @ save last round key |
| 1125 | veor q7, q7, q6 @ fix up round 0 key |
| 1126 | vstmia r4, {q7} |
| 1127 | |
| 1128 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1129 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1130 | #endif |
| 1131 | |
| 1132 | vld1.8 {q15}, [r8] @ load IV |
| 1133 | b .Lcbc_dec_loop |
| 1134 | |
| 1135 | .align 4 |
| 1136 | .Lcbc_dec_loop: |
| 1137 | subs r2, r2, #0x8 |
| 1138 | bmi .Lcbc_dec_loop_finish |
| 1139 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1140 | vld1.8 {q0,q1}, [r0]! @ load input |
| 1141 | vld1.8 {q2,q3}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1142 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1143 | mov r4, sp @ pass the key |
| 1144 | #else |
| 1145 | add r4, r3, #248 |
| 1146 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1147 | vld1.8 {q4,q5}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1148 | mov r5, r10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1149 | vld1.8 {q6,q7}, [r0] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1150 | sub r0, r0, #0x60 |
| 1151 | vstmia r9, {q15} @ put aside IV |
| 1152 | |
| 1153 | bl _bsaes_decrypt8 |
| 1154 | |
| 1155 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1156 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1157 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1158 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1159 | veor q1, q1, q8 |
| 1160 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1161 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1162 | veor q4, q4, q10 |
| 1163 | veor q2, q2, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1164 | vld1.8 {q14,q15}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1165 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1166 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1167 | veor q3, q3, q13 |
| 1168 | vst1.8 {q6}, [r1]! |
| 1169 | veor q5, q5, q14 |
| 1170 | vst1.8 {q4}, [r1]! |
| 1171 | vst1.8 {q2}, [r1]! |
| 1172 | vst1.8 {q7}, [r1]! |
| 1173 | vst1.8 {q3}, [r1]! |
| 1174 | vst1.8 {q5}, [r1]! |
| 1175 | |
| 1176 | b .Lcbc_dec_loop |
| 1177 | |
| 1178 | .Lcbc_dec_loop_finish: |
| 1179 | adds r2, r2, #8 |
| 1180 | beq .Lcbc_dec_done |
| 1181 | |
| 1182 | vld1.8 {q0}, [r0]! @ load input |
| 1183 | cmp r2, #2 |
| 1184 | blo .Lcbc_dec_one |
| 1185 | vld1.8 {q1}, [r0]! |
| 1186 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1187 | mov r4, sp @ pass the key |
| 1188 | #else |
| 1189 | add r4, r3, #248 |
| 1190 | #endif |
| 1191 | mov r5, r10 |
| 1192 | vstmia r9, {q15} @ put aside IV |
| 1193 | beq .Lcbc_dec_two |
| 1194 | vld1.8 {q2}, [r0]! |
| 1195 | cmp r2, #4 |
| 1196 | blo .Lcbc_dec_three |
| 1197 | vld1.8 {q3}, [r0]! |
| 1198 | beq .Lcbc_dec_four |
| 1199 | vld1.8 {q4}, [r0]! |
| 1200 | cmp r2, #6 |
| 1201 | blo .Lcbc_dec_five |
| 1202 | vld1.8 {q5}, [r0]! |
| 1203 | beq .Lcbc_dec_six |
| 1204 | vld1.8 {q6}, [r0]! |
| 1205 | sub r0, r0, #0x70 |
| 1206 | |
| 1207 | bl _bsaes_decrypt8 |
| 1208 | |
| 1209 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1210 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1211 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1212 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1213 | veor q1, q1, q8 |
| 1214 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1215 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1216 | veor q4, q4, q10 |
| 1217 | veor q2, q2, q11 |
| 1218 | vld1.8 {q15}, [r0]! |
| 1219 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1220 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1221 | veor q3, q3, q13 |
| 1222 | vst1.8 {q6}, [r1]! |
| 1223 | vst1.8 {q4}, [r1]! |
| 1224 | vst1.8 {q2}, [r1]! |
| 1225 | vst1.8 {q7}, [r1]! |
| 1226 | vst1.8 {q3}, [r1]! |
| 1227 | b .Lcbc_dec_done |
| 1228 | .align 4 |
| 1229 | .Lcbc_dec_six: |
| 1230 | sub r0, r0, #0x60 |
| 1231 | bl _bsaes_decrypt8 |
| 1232 | vldmia r9,{q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1233 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1234 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1235 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1236 | veor q1, q1, q8 |
| 1237 | veor q6, q6, q9 |
| 1238 | vld1.8 {q12}, [r0]! |
| 1239 | veor q4, q4, q10 |
| 1240 | veor q2, q2, q11 |
| 1241 | vld1.8 {q15}, [r0]! |
| 1242 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1243 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1244 | vst1.8 {q6}, [r1]! |
| 1245 | vst1.8 {q4}, [r1]! |
| 1246 | vst1.8 {q2}, [r1]! |
| 1247 | vst1.8 {q7}, [r1]! |
| 1248 | b .Lcbc_dec_done |
| 1249 | .align 4 |
| 1250 | .Lcbc_dec_five: |
| 1251 | sub r0, r0, #0x50 |
| 1252 | bl _bsaes_decrypt8 |
| 1253 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1254 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1255 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1256 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1257 | veor q1, q1, q8 |
| 1258 | veor q6, q6, q9 |
| 1259 | vld1.8 {q15}, [r0]! |
| 1260 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1261 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1262 | veor q2, q2, q11 |
| 1263 | vst1.8 {q6}, [r1]! |
| 1264 | vst1.8 {q4}, [r1]! |
| 1265 | vst1.8 {q2}, [r1]! |
| 1266 | b .Lcbc_dec_done |
| 1267 | .align 4 |
| 1268 | .Lcbc_dec_four: |
| 1269 | sub r0, r0, #0x40 |
| 1270 | bl _bsaes_decrypt8 |
| 1271 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1272 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1273 | veor q0, q0, q14 @ ^= IV |
| 1274 | vld1.8 {q10}, [r0]! |
| 1275 | veor q1, q1, q8 |
| 1276 | veor q6, q6, q9 |
| 1277 | vld1.8 {q15}, [r0]! |
| 1278 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1279 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1280 | vst1.8 {q6}, [r1]! |
| 1281 | vst1.8 {q4}, [r1]! |
| 1282 | b .Lcbc_dec_done |
| 1283 | .align 4 |
| 1284 | .Lcbc_dec_three: |
| 1285 | sub r0, r0, #0x30 |
| 1286 | bl _bsaes_decrypt8 |
| 1287 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1288 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1289 | veor q0, q0, q14 @ ^= IV |
| 1290 | vld1.8 {q15}, [r0]! |
| 1291 | veor q1, q1, q8 |
| 1292 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1293 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1294 | vst1.8 {q6}, [r1]! |
| 1295 | b .Lcbc_dec_done |
| 1296 | .align 4 |
| 1297 | .Lcbc_dec_two: |
| 1298 | sub r0, r0, #0x20 |
| 1299 | bl _bsaes_decrypt8 |
| 1300 | vldmia r9, {q14} @ reload IV |
| 1301 | vld1.8 {q8}, [r0]! @ reload input |
| 1302 | veor q0, q0, q14 @ ^= IV |
| 1303 | vld1.8 {q15}, [r0]! @ reload input |
| 1304 | veor q1, q1, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1305 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1306 | b .Lcbc_dec_done |
| 1307 | .align 4 |
| 1308 | .Lcbc_dec_one: |
| 1309 | sub r0, r0, #0x10 |
| 1310 | mov r10, r1 @ save original out pointer |
| 1311 | mov r1, r9 @ use the iv scratch space as out buffer |
| 1312 | mov r2, r3 |
| 1313 | vmov q4,q15 @ just in case ensure that IV |
| 1314 | vmov q5,q0 @ and input are preserved |
| 1315 | bl AES_decrypt |
| 1316 | vld1.8 {q0}, [r9,:64] @ load result |
| 1317 | veor q0, q0, q4 @ ^= IV |
| 1318 | vmov q15, q5 @ q5 holds input |
| 1319 | vst1.8 {q0}, [r10] @ write output |
| 1320 | |
| 1321 | .Lcbc_dec_done: |
| 1322 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1323 | vmov.i32 q0, #0 |
| 1324 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1325 | .Lcbc_dec_bzero:@ wipe key schedule [if any] |
| 1326 | vstmia sp!, {q0,q1} |
| 1327 | cmp sp, r9 |
| 1328 | bne .Lcbc_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1329 | #endif |
| 1330 | |
| 1331 | mov sp, r9 |
| 1332 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1333 | vst1.8 {q15}, [r8] @ return IV |
| 1334 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1335 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1336 | .size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1337 | |
| 1338 | .globl bsaes_ctr32_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1339 | .hidden bsaes_ctr32_encrypt_blocks |
| 1340 | .type bsaes_ctr32_encrypt_blocks,%function |
| 1341 | .align 5 |
| 1342 | bsaes_ctr32_encrypt_blocks: |
| 1343 | cmp r2, #8 @ use plain AES for |
| 1344 | blo .Lctr_enc_short @ small sizes |
| 1345 | |
| 1346 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1347 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1348 | VFP_ABI_PUSH |
| 1349 | ldr r8, [ip] @ ctr is 1st arg on the stack |
| 1350 | sub sp, sp, #0x10 @ scratch space to carry over the ctr |
| 1351 | mov r9, sp @ save sp |
| 1352 | |
| 1353 | ldr r10, [r3, #240] @ get # of rounds |
| 1354 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1355 | @ allocate the key schedule on the stack |
| 1356 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1357 | add r12, #96 @ size of bit-sliced key schedule |
| 1358 | |
| 1359 | @ populate the key schedule |
| 1360 | mov r4, r3 @ pass key |
| 1361 | mov r5, r10 @ pass # of rounds |
| 1362 | mov sp, r12 @ sp is sp |
| 1363 | bl _bsaes_key_convert |
| 1364 | veor q7,q7,q15 @ fix up last round key |
| 1365 | vstmia r12, {q7} @ save last round key |
| 1366 | |
| 1367 | vld1.8 {q0}, [r8] @ load counter |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1368 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame^] | 1369 | mov r8, #:lower16:(.LREVM0SR-.LM0) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1370 | add r8, r6, r8 |
| 1371 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1372 | add r8, r6, #.LREVM0SR-.LM0 @ borrow r8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1373 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1374 | vldmia sp, {q4} @ load round0 key |
| 1375 | #else |
| 1376 | ldr r12, [r3, #244] |
| 1377 | eors r12, #1 |
| 1378 | beq 0f |
| 1379 | |
| 1380 | @ populate the key schedule |
| 1381 | str r12, [r3, #244] |
| 1382 | mov r4, r3 @ pass key |
| 1383 | mov r5, r10 @ pass # of rounds |
| 1384 | add r12, r3, #248 @ pass key schedule |
| 1385 | bl _bsaes_key_convert |
| 1386 | veor q7,q7,q15 @ fix up last round key |
| 1387 | vstmia r12, {q7} @ save last round key |
| 1388 | |
| 1389 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1390 | add r12, r3, #248 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1391 | vld1.8 {q0}, [r8] @ load counter |
| 1392 | adrl r8, .LREVM0SR @ borrow r8 |
| 1393 | vldmia r12, {q4} @ load round0 key |
| 1394 | sub sp, #0x10 @ place for adjusted round0 key |
| 1395 | #endif |
| 1396 | |
| 1397 | vmov.i32 q8,#1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1398 | veor q9,q9,q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1399 | vrev32.8 q0,q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1400 | vext.8 q8,q9,q8,#4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1401 | vrev32.8 q4,q4 |
| 1402 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
| 1403 | vstmia sp, {q4} @ save adjusted round0 key |
| 1404 | b .Lctr_enc_loop |
| 1405 | |
| 1406 | .align 4 |
| 1407 | .Lctr_enc_loop: |
| 1408 | vadd.u32 q10, q8, q9 @ compose 3<<96 |
| 1409 | vadd.u32 q1, q0, q8 @ +1 |
| 1410 | vadd.u32 q2, q0, q9 @ +2 |
| 1411 | vadd.u32 q3, q0, q10 @ +3 |
| 1412 | vadd.u32 q4, q1, q10 |
| 1413 | vadd.u32 q5, q2, q10 |
| 1414 | vadd.u32 q6, q3, q10 |
| 1415 | vadd.u32 q7, q4, q10 |
| 1416 | vadd.u32 q10, q5, q10 @ next counter |
| 1417 | |
| 1418 | @ Borrow prologue from _bsaes_encrypt8 to use the opportunity |
| 1419 | @ to flip byte order in 32-bit counter |
| 1420 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1421 | vldmia sp, {q9} @ load round0 key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1422 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1423 | add r4, sp, #0x10 @ pass next round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1424 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1425 | add r4, r3, #264 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1426 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1427 | vldmia r8, {q8} @ .LREVM0SR |
| 1428 | mov r5, r10 @ pass rounds |
| 1429 | vstmia r9, {q10} @ save next counter |
| 1430 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame^] | 1431 | mov r6, #:lower16:(.LREVM0SR-.LSR) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1432 | sub r6, r8, r6 |
| 1433 | #else |
| 1434 | sub r6, r8, #.LREVM0SR-.LSR @ pass constants |
| 1435 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1436 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1437 | bl _bsaes_encrypt8_alt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1438 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1439 | subs r2, r2, #8 |
| 1440 | blo .Lctr_enc_loop_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1441 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1442 | vld1.8 {q8,q9}, [r0]! @ load input |
| 1443 | vld1.8 {q10,q11}, [r0]! |
| 1444 | veor q0, q8 |
| 1445 | veor q1, q9 |
| 1446 | vld1.8 {q12,q13}, [r0]! |
| 1447 | veor q4, q10 |
| 1448 | veor q6, q11 |
| 1449 | vld1.8 {q14,q15}, [r0]! |
| 1450 | veor q3, q12 |
| 1451 | vst1.8 {q0,q1}, [r1]! @ write output |
| 1452 | veor q7, q13 |
| 1453 | veor q2, q14 |
| 1454 | vst1.8 {q4}, [r1]! |
| 1455 | veor q5, q15 |
| 1456 | vst1.8 {q6}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1457 | vmov.i32 q8, #1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1458 | vst1.8 {q3}, [r1]! |
| 1459 | veor q9, q9, q9 |
| 1460 | vst1.8 {q7}, [r1]! |
| 1461 | vext.8 q8, q9, q8, #4 |
| 1462 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1463 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1464 | vst1.8 {q5}, [r1]! |
| 1465 | vldmia r9, {q0} @ load counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1466 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1467 | bne .Lctr_enc_loop |
| 1468 | b .Lctr_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1469 | |
| 1470 | .align 4 |
| 1471 | .Lctr_enc_loop_done: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1472 | add r2, r2, #8 |
| 1473 | vld1.8 {q8}, [r0]! @ load input |
| 1474 | veor q0, q8 |
| 1475 | vst1.8 {q0}, [r1]! @ write output |
| 1476 | cmp r2, #2 |
| 1477 | blo .Lctr_enc_done |
| 1478 | vld1.8 {q9}, [r0]! |
| 1479 | veor q1, q9 |
| 1480 | vst1.8 {q1}, [r1]! |
| 1481 | beq .Lctr_enc_done |
| 1482 | vld1.8 {q10}, [r0]! |
| 1483 | veor q4, q10 |
| 1484 | vst1.8 {q4}, [r1]! |
| 1485 | cmp r2, #4 |
| 1486 | blo .Lctr_enc_done |
| 1487 | vld1.8 {q11}, [r0]! |
| 1488 | veor q6, q11 |
| 1489 | vst1.8 {q6}, [r1]! |
| 1490 | beq .Lctr_enc_done |
| 1491 | vld1.8 {q12}, [r0]! |
| 1492 | veor q3, q12 |
| 1493 | vst1.8 {q3}, [r1]! |
| 1494 | cmp r2, #6 |
| 1495 | blo .Lctr_enc_done |
| 1496 | vld1.8 {q13}, [r0]! |
| 1497 | veor q7, q13 |
| 1498 | vst1.8 {q7}, [r1]! |
| 1499 | beq .Lctr_enc_done |
| 1500 | vld1.8 {q14}, [r0] |
| 1501 | veor q2, q14 |
| 1502 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1503 | |
| 1504 | .Lctr_enc_done: |
| 1505 | vmov.i32 q0, #0 |
| 1506 | vmov.i32 q1, #0 |
| 1507 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1508 | .Lctr_enc_bzero:@ wipe key schedule [if any] |
| 1509 | vstmia sp!, {q0,q1} |
| 1510 | cmp sp, r9 |
| 1511 | bne .Lctr_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1512 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1513 | vstmia sp, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1514 | #endif |
| 1515 | |
| 1516 | mov sp, r9 |
| 1517 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1518 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1519 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1520 | |
| 1521 | .align 4 |
| 1522 | .Lctr_enc_short: |
| 1523 | ldr ip, [sp] @ ctr pointer is passed on stack |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1524 | stmdb sp!, {r4,r5,r6,r7,r8, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1525 | |
| 1526 | mov r4, r0 @ copy arguments |
| 1527 | mov r5, r1 |
| 1528 | mov r6, r2 |
| 1529 | mov r7, r3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1530 | ldr r8, [ip, #12] @ load counter .LSW |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1531 | vld1.8 {q1}, [ip] @ load whole counter value |
| 1532 | #ifdef __ARMEL__ |
| 1533 | rev r8, r8 |
| 1534 | #endif |
| 1535 | sub sp, sp, #0x10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1536 | vst1.8 {q1}, [sp] @ copy counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1537 | sub sp, sp, #0x10 |
| 1538 | |
| 1539 | .Lctr_enc_short_loop: |
| 1540 | add r0, sp, #0x10 @ input counter value |
| 1541 | mov r1, sp @ output on the stack |
| 1542 | mov r2, r7 @ key |
| 1543 | |
| 1544 | bl AES_encrypt |
| 1545 | |
| 1546 | vld1.8 {q0}, [r4]! @ load input |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1547 | vld1.8 {q1}, [sp] @ load encrypted counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1548 | add r8, r8, #1 |
| 1549 | #ifdef __ARMEL__ |
| 1550 | rev r0, r8 |
| 1551 | str r0, [sp, #0x1c] @ next counter value |
| 1552 | #else |
| 1553 | str r8, [sp, #0x1c] @ next counter value |
| 1554 | #endif |
| 1555 | veor q0,q0,q1 |
| 1556 | vst1.8 {q0}, [r5]! @ store output |
| 1557 | subs r6, r6, #1 |
| 1558 | bne .Lctr_enc_short_loop |
| 1559 | |
| 1560 | vmov.i32 q0, #0 |
| 1561 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1562 | vstmia sp!, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1563 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1564 | ldmia sp!, {r4,r5,r6,r7,r8, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1565 | .size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks |
| 1566 | .globl bsaes_xts_encrypt |
| 1567 | .hidden bsaes_xts_encrypt |
| 1568 | .type bsaes_xts_encrypt,%function |
| 1569 | .align 4 |
| 1570 | bsaes_xts_encrypt: |
| 1571 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1572 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1573 | VFP_ABI_PUSH |
| 1574 | mov r6, sp @ future r3 |
| 1575 | |
| 1576 | mov r7, r0 |
| 1577 | mov r8, r1 |
| 1578 | mov r9, r2 |
| 1579 | mov r10, r3 |
| 1580 | |
| 1581 | sub r0, sp, #0x10 @ 0x10 |
| 1582 | bic r0, #0xf @ align at 16 bytes |
| 1583 | mov sp, r0 |
| 1584 | |
| 1585 | #ifdef XTS_CHAIN_TWEAK |
| 1586 | ldr r0, [ip] @ pointer to input tweak |
| 1587 | #else |
| 1588 | @ generate initial tweak |
| 1589 | ldr r0, [ip, #4] @ iv[] |
| 1590 | mov r1, sp |
| 1591 | ldr r2, [ip, #0] @ key2 |
| 1592 | bl AES_encrypt |
| 1593 | mov r0,sp @ pointer to initial tweak |
| 1594 | #endif |
| 1595 | |
| 1596 | ldr r1, [r10, #240] @ get # of rounds |
| 1597 | mov r3, r6 |
| 1598 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1599 | @ allocate the key schedule on the stack |
| 1600 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 1601 | @ add r12, #96 @ size of bit-sliced key schedule |
| 1602 | sub r12, #48 @ place for tweak[9] |
| 1603 | |
| 1604 | @ populate the key schedule |
| 1605 | mov r4, r10 @ pass key |
| 1606 | mov r5, r1 @ pass # of rounds |
| 1607 | mov sp, r12 |
| 1608 | add r12, #0x90 @ pass key schedule |
| 1609 | bl _bsaes_key_convert |
| 1610 | veor q7, q7, q15 @ fix up last round key |
| 1611 | vstmia r12, {q7} @ save last round key |
| 1612 | #else |
| 1613 | ldr r12, [r10, #244] |
| 1614 | eors r12, #1 |
| 1615 | beq 0f |
| 1616 | |
| 1617 | str r12, [r10, #244] |
| 1618 | mov r4, r10 @ pass key |
| 1619 | mov r5, r1 @ pass # of rounds |
| 1620 | add r12, r10, #248 @ pass key schedule |
| 1621 | bl _bsaes_key_convert |
| 1622 | veor q7, q7, q15 @ fix up last round key |
| 1623 | vstmia r12, {q7} |
| 1624 | |
| 1625 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1626 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1627 | #endif |
| 1628 | |
| 1629 | vld1.8 {q8}, [r0] @ initial tweak |
| 1630 | adr r2, .Lxts_magic |
| 1631 | |
| 1632 | subs r9, #0x80 |
| 1633 | blo .Lxts_enc_short |
| 1634 | b .Lxts_enc_loop |
| 1635 | |
| 1636 | .align 4 |
| 1637 | .Lxts_enc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1638 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1639 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1640 | mov r0, sp |
| 1641 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1642 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1643 | vst1.64 {q8}, [r0,:128]! |
| 1644 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1645 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1646 | veor q9, q9, q6 |
| 1647 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1648 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1649 | vst1.64 {q9}, [r0,:128]! |
| 1650 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1651 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1652 | veor q10, q10, q7 |
| 1653 | vand q6, q6, q5 |
| 1654 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1655 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1656 | vst1.64 {q10}, [r0,:128]! |
| 1657 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1658 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1659 | veor q11, q11, q6 |
| 1660 | vand q7, q7, q5 |
| 1661 | vld1.8 {q1}, [r7]! |
| 1662 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1663 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1664 | vst1.64 {q11}, [r0,:128]! |
| 1665 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1666 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1667 | veor q12, q12, q7 |
| 1668 | vand q6, q6, q5 |
| 1669 | vld1.8 {q2}, [r7]! |
| 1670 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1671 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1672 | vst1.64 {q12}, [r0,:128]! |
| 1673 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1674 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1675 | veor q13, q13, q6 |
| 1676 | vand q7, q7, q5 |
| 1677 | vld1.8 {q3}, [r7]! |
| 1678 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1679 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1680 | vst1.64 {q13}, [r0,:128]! |
| 1681 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1682 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1683 | veor q14, q14, q7 |
| 1684 | vand q6, q6, q5 |
| 1685 | vld1.8 {q4}, [r7]! |
| 1686 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1687 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1688 | vst1.64 {q14}, [r0,:128]! |
| 1689 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1690 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1691 | veor q15, q15, q6 |
| 1692 | vand q7, q7, q5 |
| 1693 | vld1.8 {q5}, [r7]! |
| 1694 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1695 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1696 | vst1.64 {q15}, [r0,:128]! |
| 1697 | vswp d15,d14 |
| 1698 | veor q8, q8, q7 |
| 1699 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1700 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1701 | vld1.8 {q6,q7}, [r7]! |
| 1702 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1703 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1704 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1705 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1706 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1707 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1708 | veor q6, q6, q14 |
| 1709 | mov r5, r1 @ pass rounds |
| 1710 | veor q7, q7, q15 |
| 1711 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1712 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1713 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1714 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1715 | vld1.64 {q8,q9}, [r0,:128]! |
| 1716 | vld1.64 {q10,q11}, [r0,:128]! |
| 1717 | veor q0, q0, q8 |
| 1718 | vld1.64 {q12,q13}, [r0,:128]! |
| 1719 | veor q1, q1, q9 |
| 1720 | veor q8, q4, q10 |
| 1721 | vst1.8 {q0,q1}, [r8]! |
| 1722 | veor q9, q6, q11 |
| 1723 | vld1.64 {q14,q15}, [r0,:128]! |
| 1724 | veor q10, q3, q12 |
| 1725 | vst1.8 {q8,q9}, [r8]! |
| 1726 | veor q11, q7, q13 |
| 1727 | veor q12, q2, q14 |
| 1728 | vst1.8 {q10,q11}, [r8]! |
| 1729 | veor q13, q5, q15 |
| 1730 | vst1.8 {q12,q13}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1731 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1732 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1733 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1734 | subs r9, #0x80 |
| 1735 | bpl .Lxts_enc_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1736 | |
| 1737 | .Lxts_enc_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1738 | adds r9, #0x70 |
| 1739 | bmi .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1740 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1741 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1742 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1743 | mov r0, sp |
| 1744 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1745 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1746 | vst1.64 {q8}, [r0,:128]! |
| 1747 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1748 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1749 | veor q9, q9, q7 |
| 1750 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1751 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1752 | vst1.64 {q9}, [r0,:128]! |
| 1753 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1754 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1755 | veor q10, q10, q6 |
| 1756 | vand q7, q7, q5 |
| 1757 | vld1.8 {q0}, [r7]! |
| 1758 | subs r9, #0x10 |
| 1759 | bmi .Lxts_enc_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1760 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1761 | vst1.64 {q10}, [r0,:128]! |
| 1762 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1763 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1764 | veor q11, q11, q7 |
| 1765 | vand q6, q6, q5 |
| 1766 | vld1.8 {q1}, [r7]! |
| 1767 | subs r9, #0x10 |
| 1768 | bmi .Lxts_enc_2 |
| 1769 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1770 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1771 | vst1.64 {q11}, [r0,:128]! |
| 1772 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1773 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1774 | veor q12, q12, q6 |
| 1775 | vand q7, q7, q5 |
| 1776 | vld1.8 {q2}, [r7]! |
| 1777 | subs r9, #0x10 |
| 1778 | bmi .Lxts_enc_3 |
| 1779 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1780 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1781 | vst1.64 {q12}, [r0,:128]! |
| 1782 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1783 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1784 | veor q13, q13, q7 |
| 1785 | vand q6, q6, q5 |
| 1786 | vld1.8 {q3}, [r7]! |
| 1787 | subs r9, #0x10 |
| 1788 | bmi .Lxts_enc_4 |
| 1789 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1790 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1791 | vst1.64 {q13}, [r0,:128]! |
| 1792 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1793 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1794 | veor q14, q14, q6 |
| 1795 | vand q7, q7, q5 |
| 1796 | vld1.8 {q4}, [r7]! |
| 1797 | subs r9, #0x10 |
| 1798 | bmi .Lxts_enc_5 |
| 1799 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1800 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1801 | vst1.64 {q14}, [r0,:128]! |
| 1802 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1803 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1804 | veor q15, q15, q7 |
| 1805 | vand q6, q6, q5 |
| 1806 | vld1.8 {q5}, [r7]! |
| 1807 | subs r9, #0x10 |
| 1808 | bmi .Lxts_enc_6 |
| 1809 | veor q4, q4, q12 |
| 1810 | sub r9, #0x10 |
| 1811 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1812 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1813 | vld1.8 {q6}, [r7]! |
| 1814 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1815 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1816 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1817 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1818 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1819 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1820 | veor q6, q6, q14 |
| 1821 | mov r5, r1 @ pass rounds |
| 1822 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1823 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1824 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1825 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1826 | vld1.64 {q8,q9}, [r0,:128]! |
| 1827 | vld1.64 {q10,q11}, [r0,:128]! |
| 1828 | veor q0, q0, q8 |
| 1829 | vld1.64 {q12,q13}, [r0,:128]! |
| 1830 | veor q1, q1, q9 |
| 1831 | veor q8, q4, q10 |
| 1832 | vst1.8 {q0,q1}, [r8]! |
| 1833 | veor q9, q6, q11 |
| 1834 | vld1.64 {q14}, [r0,:128]! |
| 1835 | veor q10, q3, q12 |
| 1836 | vst1.8 {q8,q9}, [r8]! |
| 1837 | veor q11, q7, q13 |
| 1838 | veor q12, q2, q14 |
| 1839 | vst1.8 {q10,q11}, [r8]! |
| 1840 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1841 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1842 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1843 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1844 | .align 4 |
| 1845 | .Lxts_enc_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1846 | vst1.64 {q14}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1847 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1848 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1849 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1850 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1851 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1852 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1853 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1854 | veor q5, q5, q13 |
| 1855 | mov r5, r1 @ pass rounds |
| 1856 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1857 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1858 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1859 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1860 | vld1.64 {q8,q9}, [r0,:128]! |
| 1861 | vld1.64 {q10,q11}, [r0,:128]! |
| 1862 | veor q0, q0, q8 |
| 1863 | vld1.64 {q12,q13}, [r0,:128]! |
| 1864 | veor q1, q1, q9 |
| 1865 | veor q8, q4, q10 |
| 1866 | vst1.8 {q0,q1}, [r8]! |
| 1867 | veor q9, q6, q11 |
| 1868 | veor q10, q3, q12 |
| 1869 | vst1.8 {q8,q9}, [r8]! |
| 1870 | veor q11, q7, q13 |
| 1871 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1872 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1873 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1874 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1875 | |
| 1876 | @ put this in range for both ARM and Thumb mode adr instructions |
| 1877 | .align 5 |
| 1878 | .Lxts_magic: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1879 | .quad 1, 0x87 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1880 | |
| 1881 | .align 5 |
| 1882 | .Lxts_enc_5: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1883 | vst1.64 {q13}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1884 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1885 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1886 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1887 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1888 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1889 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1890 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1891 | veor q4, q4, q12 |
| 1892 | mov r5, r1 @ pass rounds |
| 1893 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1894 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1895 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1896 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1897 | vld1.64 {q8,q9}, [r0,:128]! |
| 1898 | vld1.64 {q10,q11}, [r0,:128]! |
| 1899 | veor q0, q0, q8 |
| 1900 | vld1.64 {q12}, [r0,:128]! |
| 1901 | veor q1, q1, q9 |
| 1902 | veor q8, q4, q10 |
| 1903 | vst1.8 {q0,q1}, [r8]! |
| 1904 | veor q9, q6, q11 |
| 1905 | veor q10, q3, q12 |
| 1906 | vst1.8 {q8,q9}, [r8]! |
| 1907 | vst1.8 {q10}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1908 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1909 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1910 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1911 | .align 4 |
| 1912 | .Lxts_enc_4: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1913 | vst1.64 {q12}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1914 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1915 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1916 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1917 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1918 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1919 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1920 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1921 | veor q3, q3, q11 |
| 1922 | mov r5, r1 @ pass rounds |
| 1923 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1924 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1925 | bl _bsaes_encrypt8 |
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 | vld1.64 {q8,q9}, [r0,:128]! |
| 1928 | vld1.64 {q10,q11}, [r0,:128]! |
| 1929 | veor q0, q0, q8 |
| 1930 | veor q1, q1, q9 |
| 1931 | veor q8, q4, q10 |
| 1932 | vst1.8 {q0,q1}, [r8]! |
| 1933 | veor q9, q6, q11 |
| 1934 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1935 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1936 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1937 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1938 | .align 4 |
| 1939 | .Lxts_enc_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1940 | vst1.64 {q11}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1941 | |
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 | vst1.64 {q10}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1967 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1968 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1969 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1970 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1971 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1972 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1973 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1974 | veor q1, q1, q9 |
| 1975 | mov r5, r1 @ pass rounds |
| 1976 | mov r0, sp |
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 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1979 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1980 | vld1.64 {q8,q9}, [r0,:128]! |
| 1981 | veor q0, q0, q8 |
| 1982 | veor q1, q1, q9 |
| 1983 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1984 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1985 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1986 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1987 | .align 4 |
| 1988 | .Lxts_enc_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1989 | mov r0, sp |
| 1990 | veor q0, q8 |
| 1991 | mov r1, sp |
| 1992 | vst1.8 {q0}, [sp,:128] |
| 1993 | mov r2, r10 |
| 1994 | mov r4, r3 @ preserve fp |
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 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1997 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1998 | vld1.8 {q0}, [sp,:128] |
| 1999 | veor q0, q0, q8 |
| 2000 | vst1.8 {q0}, [r8]! |
| 2001 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2002 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2003 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2004 | |
| 2005 | .Lxts_enc_done: |
| 2006 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2007 | adds r9, #0x10 |
| 2008 | beq .Lxts_enc_ret |
| 2009 | sub r6, r8, #0x10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2010 | |
| 2011 | .Lxts_enc_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2012 | ldrb r0, [r7], #1 |
| 2013 | ldrb r1, [r8, #-0x10] |
| 2014 | strb r0, [r8, #-0x10] |
| 2015 | strb r1, [r8], #1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2016 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2017 | subs r9, #1 |
| 2018 | bhi .Lxts_enc_steal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2019 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2020 | vld1.8 {q0}, [r6] |
| 2021 | mov r0, sp |
| 2022 | veor q0, q0, q8 |
| 2023 | mov r1, sp |
| 2024 | vst1.8 {q0}, [sp,:128] |
| 2025 | mov r2, r10 |
| 2026 | mov r4, r3 @ preserve fp |
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 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2029 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2030 | vld1.8 {q0}, [sp,:128] |
| 2031 | veor q0, q0, q8 |
| 2032 | vst1.8 {q0}, [r6] |
| 2033 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2034 | #endif |
| 2035 | |
| 2036 | .Lxts_enc_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2037 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2038 | vmov.i32 q0, #0 |
| 2039 | vmov.i32 q1, #0 |
| 2040 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2041 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2042 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2043 | .Lxts_enc_bzero:@ wipe key schedule [if any] |
| 2044 | vstmia sp!, {q0,q1} |
| 2045 | cmp sp, r0 |
| 2046 | bne .Lxts_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2047 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2048 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2049 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2050 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2051 | #endif |
| 2052 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2053 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2054 | |
| 2055 | .size bsaes_xts_encrypt,.-bsaes_xts_encrypt |
| 2056 | |
| 2057 | .globl bsaes_xts_decrypt |
| 2058 | .hidden bsaes_xts_decrypt |
| 2059 | .type bsaes_xts_decrypt,%function |
| 2060 | .align 4 |
| 2061 | bsaes_xts_decrypt: |
| 2062 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2063 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2064 | VFP_ABI_PUSH |
| 2065 | mov r6, sp @ future r3 |
| 2066 | |
| 2067 | mov r7, r0 |
| 2068 | mov r8, r1 |
| 2069 | mov r9, r2 |
| 2070 | mov r10, r3 |
| 2071 | |
| 2072 | sub r0, sp, #0x10 @ 0x10 |
| 2073 | bic r0, #0xf @ align at 16 bytes |
| 2074 | mov sp, r0 |
| 2075 | |
| 2076 | #ifdef XTS_CHAIN_TWEAK |
| 2077 | ldr r0, [ip] @ pointer to input tweak |
| 2078 | #else |
| 2079 | @ generate initial tweak |
| 2080 | ldr r0, [ip, #4] @ iv[] |
| 2081 | mov r1, sp |
| 2082 | ldr r2, [ip, #0] @ key2 |
| 2083 | bl AES_encrypt |
| 2084 | mov r0, sp @ pointer to initial tweak |
| 2085 | #endif |
| 2086 | |
| 2087 | ldr r1, [r10, #240] @ get # of rounds |
| 2088 | mov r3, r6 |
| 2089 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 2090 | @ allocate the key schedule on the stack |
| 2091 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 2092 | @ add r12, #96 @ size of bit-sliced key schedule |
| 2093 | sub r12, #48 @ place for tweak[9] |
| 2094 | |
| 2095 | @ populate the key schedule |
| 2096 | mov r4, r10 @ pass key |
| 2097 | mov r5, r1 @ pass # of rounds |
| 2098 | mov sp, r12 |
| 2099 | add r12, #0x90 @ pass key schedule |
| 2100 | bl _bsaes_key_convert |
| 2101 | add r4, sp, #0x90 |
| 2102 | vldmia r4, {q6} |
| 2103 | vstmia r12, {q15} @ save last round key |
| 2104 | veor q7, q7, q6 @ fix up round 0 key |
| 2105 | vstmia r4, {q7} |
| 2106 | #else |
| 2107 | ldr r12, [r10, #244] |
| 2108 | eors r12, #1 |
| 2109 | beq 0f |
| 2110 | |
| 2111 | str r12, [r10, #244] |
| 2112 | mov r4, r10 @ pass key |
| 2113 | mov r5, r1 @ pass # of rounds |
| 2114 | add r12, r10, #248 @ pass key schedule |
| 2115 | bl _bsaes_key_convert |
| 2116 | add r4, r10, #248 |
| 2117 | vldmia r4, {q6} |
| 2118 | vstmia r12, {q15} @ save last round key |
| 2119 | veor q7, q7, q6 @ fix up round 0 key |
| 2120 | vstmia r4, {q7} |
| 2121 | |
| 2122 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2123 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2124 | #endif |
| 2125 | vld1.8 {q8}, [r0] @ initial tweak |
| 2126 | adr r2, .Lxts_magic |
| 2127 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2128 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2129 | tst r9, #0xf @ if not multiple of 16 |
| 2130 | it ne @ Thumb2 thing, sanity check in ARM |
| 2131 | subne r9, #0x10 @ subtract another 16 bytes |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2132 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2133 | subs r9, #0x80 |
| 2134 | |
| 2135 | blo .Lxts_dec_short |
| 2136 | b .Lxts_dec_loop |
| 2137 | |
| 2138 | .align 4 |
| 2139 | .Lxts_dec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2140 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2141 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2142 | mov r0, sp |
| 2143 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2144 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2145 | vst1.64 {q8}, [r0,:128]! |
| 2146 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2147 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2148 | veor q9, q9, q6 |
| 2149 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2150 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2151 | vst1.64 {q9}, [r0,:128]! |
| 2152 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2153 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2154 | veor q10, q10, q7 |
| 2155 | vand q6, q6, q5 |
| 2156 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2157 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2158 | vst1.64 {q10}, [r0,:128]! |
| 2159 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2160 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2161 | veor q11, q11, q6 |
| 2162 | vand q7, q7, q5 |
| 2163 | vld1.8 {q1}, [r7]! |
| 2164 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2165 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2166 | vst1.64 {q11}, [r0,:128]! |
| 2167 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2168 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2169 | veor q12, q12, q7 |
| 2170 | vand q6, q6, q5 |
| 2171 | vld1.8 {q2}, [r7]! |
| 2172 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2173 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2174 | vst1.64 {q12}, [r0,:128]! |
| 2175 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2176 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2177 | veor q13, q13, q6 |
| 2178 | vand q7, q7, q5 |
| 2179 | vld1.8 {q3}, [r7]! |
| 2180 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2181 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2182 | vst1.64 {q13}, [r0,:128]! |
| 2183 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2184 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2185 | veor q14, q14, q7 |
| 2186 | vand q6, q6, q5 |
| 2187 | vld1.8 {q4}, [r7]! |
| 2188 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2189 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2190 | vst1.64 {q14}, [r0,:128]! |
| 2191 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2192 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2193 | veor q15, q15, q6 |
| 2194 | vand q7, q7, q5 |
| 2195 | vld1.8 {q5}, [r7]! |
| 2196 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2197 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2198 | vst1.64 {q15}, [r0,:128]! |
| 2199 | vswp d15,d14 |
| 2200 | veor q8, q8, q7 |
| 2201 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2202 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2203 | vld1.8 {q6,q7}, [r7]! |
| 2204 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2205 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2206 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2207 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2208 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2209 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2210 | veor q6, q6, q14 |
| 2211 | mov r5, r1 @ pass rounds |
| 2212 | veor q7, q7, q15 |
| 2213 | mov r0, sp |
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 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2216 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2217 | vld1.64 {q8,q9}, [r0,:128]! |
| 2218 | vld1.64 {q10,q11}, [r0,:128]! |
| 2219 | veor q0, q0, q8 |
| 2220 | vld1.64 {q12,q13}, [r0,:128]! |
| 2221 | veor q1, q1, q9 |
| 2222 | veor q8, q6, q10 |
| 2223 | vst1.8 {q0,q1}, [r8]! |
| 2224 | veor q9, q4, q11 |
| 2225 | vld1.64 {q14,q15}, [r0,:128]! |
| 2226 | veor q10, q2, q12 |
| 2227 | vst1.8 {q8,q9}, [r8]! |
| 2228 | veor q11, q7, q13 |
| 2229 | veor q12, q3, q14 |
| 2230 | vst1.8 {q10,q11}, [r8]! |
| 2231 | veor q13, q5, q15 |
| 2232 | vst1.8 {q12,q13}, [r8]! |
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 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2235 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2236 | subs r9, #0x80 |
| 2237 | bpl .Lxts_dec_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2238 | |
| 2239 | .Lxts_dec_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2240 | adds r9, #0x70 |
| 2241 | bmi .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2242 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2243 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2244 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2245 | mov r0, sp |
| 2246 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2247 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2248 | vst1.64 {q8}, [r0,:128]! |
| 2249 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2250 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2251 | veor q9, q9, q7 |
| 2252 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2253 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2254 | vst1.64 {q9}, [r0,:128]! |
| 2255 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2256 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2257 | veor q10, q10, q6 |
| 2258 | vand q7, q7, q5 |
| 2259 | vld1.8 {q0}, [r7]! |
| 2260 | subs r9, #0x10 |
| 2261 | bmi .Lxts_dec_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2262 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2263 | vst1.64 {q10}, [r0,:128]! |
| 2264 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2265 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2266 | veor q11, q11, q7 |
| 2267 | vand q6, q6, q5 |
| 2268 | vld1.8 {q1}, [r7]! |
| 2269 | subs r9, #0x10 |
| 2270 | bmi .Lxts_dec_2 |
| 2271 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2272 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2273 | vst1.64 {q11}, [r0,:128]! |
| 2274 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2275 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2276 | veor q12, q12, q6 |
| 2277 | vand q7, q7, q5 |
| 2278 | vld1.8 {q2}, [r7]! |
| 2279 | subs r9, #0x10 |
| 2280 | bmi .Lxts_dec_3 |
| 2281 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2282 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2283 | vst1.64 {q12}, [r0,:128]! |
| 2284 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2285 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2286 | veor q13, q13, q7 |
| 2287 | vand q6, q6, q5 |
| 2288 | vld1.8 {q3}, [r7]! |
| 2289 | subs r9, #0x10 |
| 2290 | bmi .Lxts_dec_4 |
| 2291 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2292 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2293 | vst1.64 {q13}, [r0,:128]! |
| 2294 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2295 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2296 | veor q14, q14, q6 |
| 2297 | vand q7, q7, q5 |
| 2298 | vld1.8 {q4}, [r7]! |
| 2299 | subs r9, #0x10 |
| 2300 | bmi .Lxts_dec_5 |
| 2301 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2302 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2303 | vst1.64 {q14}, [r0,:128]! |
| 2304 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2305 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2306 | veor q15, q15, q7 |
| 2307 | vand q6, q6, q5 |
| 2308 | vld1.8 {q5}, [r7]! |
| 2309 | subs r9, #0x10 |
| 2310 | bmi .Lxts_dec_6 |
| 2311 | veor q4, q4, q12 |
| 2312 | sub r9, #0x10 |
| 2313 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2314 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2315 | vld1.8 {q6}, [r7]! |
| 2316 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2317 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2318 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2319 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2320 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2321 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2322 | veor q6, q6, q14 |
| 2323 | mov r5, r1 @ pass rounds |
| 2324 | mov r0, sp |
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 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2327 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2328 | vld1.64 {q8,q9}, [r0,:128]! |
| 2329 | vld1.64 {q10,q11}, [r0,:128]! |
| 2330 | veor q0, q0, q8 |
| 2331 | vld1.64 {q12,q13}, [r0,:128]! |
| 2332 | veor q1, q1, q9 |
| 2333 | veor q8, q6, q10 |
| 2334 | vst1.8 {q0,q1}, [r8]! |
| 2335 | veor q9, q4, q11 |
| 2336 | vld1.64 {q14}, [r0,:128]! |
| 2337 | veor q10, q2, q12 |
| 2338 | vst1.8 {q8,q9}, [r8]! |
| 2339 | veor q11, q7, q13 |
| 2340 | veor q12, q3, q14 |
| 2341 | vst1.8 {q10,q11}, [r8]! |
| 2342 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2343 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2344 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2345 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2346 | .align 4 |
| 2347 | .Lxts_dec_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2348 | vst1.64 {q14}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2349 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2350 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2351 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2352 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2353 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2354 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2355 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2356 | veor q5, q5, q13 |
| 2357 | mov r5, r1 @ pass rounds |
| 2358 | mov r0, sp |
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 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2361 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2362 | vld1.64 {q8,q9}, [r0,:128]! |
| 2363 | vld1.64 {q10,q11}, [r0,:128]! |
| 2364 | veor q0, q0, q8 |
| 2365 | vld1.64 {q12,q13}, [r0,:128]! |
| 2366 | veor q1, q1, q9 |
| 2367 | veor q8, q6, q10 |
| 2368 | vst1.8 {q0,q1}, [r8]! |
| 2369 | veor q9, q4, q11 |
| 2370 | veor q10, q2, q12 |
| 2371 | vst1.8 {q8,q9}, [r8]! |
| 2372 | veor q11, q7, q13 |
| 2373 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2374 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2375 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2376 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2377 | .align 4 |
| 2378 | .Lxts_dec_5: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2379 | vst1.64 {q13}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2380 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2381 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2382 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2383 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2384 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2385 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2386 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2387 | veor q4, q4, q12 |
| 2388 | mov r5, r1 @ pass rounds |
| 2389 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2390 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2391 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2392 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2393 | vld1.64 {q8,q9}, [r0,:128]! |
| 2394 | vld1.64 {q10,q11}, [r0,:128]! |
| 2395 | veor q0, q0, q8 |
| 2396 | vld1.64 {q12}, [r0,:128]! |
| 2397 | veor q1, q1, q9 |
| 2398 | veor q8, q6, q10 |
| 2399 | vst1.8 {q0,q1}, [r8]! |
| 2400 | veor q9, q4, q11 |
| 2401 | veor q10, q2, q12 |
| 2402 | vst1.8 {q8,q9}, [r8]! |
| 2403 | vst1.8 {q10}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2404 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2405 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2406 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2407 | .align 4 |
| 2408 | .Lxts_dec_4: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2409 | vst1.64 {q12}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2410 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2411 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2412 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2413 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2414 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2415 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2416 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2417 | veor q3, q3, q11 |
| 2418 | mov r5, r1 @ pass rounds |
| 2419 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2420 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2421 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2422 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2423 | vld1.64 {q8,q9}, [r0,:128]! |
| 2424 | vld1.64 {q10,q11}, [r0,:128]! |
| 2425 | veor q0, q0, q8 |
| 2426 | veor q1, q1, q9 |
| 2427 | veor q8, q6, q10 |
| 2428 | vst1.8 {q0,q1}, [r8]! |
| 2429 | veor q9, q4, q11 |
| 2430 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2431 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2432 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2433 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2434 | .align 4 |
| 2435 | .Lxts_dec_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2436 | vst1.64 {q11}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2437 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2438 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2439 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2440 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2441 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2442 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2443 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2444 | veor q2, q2, q10 |
| 2445 | mov r5, r1 @ pass rounds |
| 2446 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2447 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2448 | bl _bsaes_decrypt8 |
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,q9}, [r0,:128]! |
| 2451 | vld1.64 {q10}, [r0,:128]! |
| 2452 | veor q0, q0, q8 |
| 2453 | veor q1, q1, q9 |
| 2454 | veor q8, q6, q10 |
| 2455 | vst1.8 {q0,q1}, [r8]! |
| 2456 | vst1.8 {q8}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2457 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2458 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2459 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2460 | .align 4 |
| 2461 | .Lxts_dec_2: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2462 | vst1.64 {q10}, [r0,:128] @ next round tweak |
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 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2465 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2466 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2467 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2468 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2469 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2470 | veor q1, q1, q9 |
| 2471 | mov r5, r1 @ pass rounds |
| 2472 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2473 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2474 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2475 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2476 | vld1.64 {q8,q9}, [r0,:128]! |
| 2477 | veor q0, q0, q8 |
| 2478 | veor q1, q1, q9 |
| 2479 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2480 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2481 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2482 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2483 | .align 4 |
| 2484 | .Lxts_dec_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2485 | mov r0, sp |
| 2486 | veor q0, q8 |
| 2487 | mov r1, sp |
| 2488 | vst1.8 {q0}, [sp,:128] |
| 2489 | mov r2, r10 |
| 2490 | mov r4, r3 @ preserve fp |
| 2491 | mov r5, r2 @ preserve magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2492 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2493 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2494 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2495 | vld1.8 {q0}, [sp,:128] |
| 2496 | veor q0, q0, q8 |
| 2497 | vst1.8 {q0}, [r8]! |
| 2498 | mov r3, r4 |
| 2499 | mov r2, r5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2500 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2501 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2502 | |
| 2503 | .Lxts_dec_done: |
| 2504 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2505 | adds r9, #0x10 |
| 2506 | beq .Lxts_dec_ret |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2507 | |
| 2508 | @ calculate one round of extra tweak for the stolen ciphertext |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2509 | vldmia r2, {q5} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2510 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2511 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2512 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2513 | vswp d13,d12 |
| 2514 | veor q9, q9, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2515 | |
| 2516 | @ perform the final decryption with the last tweak value |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2517 | vld1.8 {q0}, [r7]! |
| 2518 | mov r0, sp |
| 2519 | veor q0, q0, q9 |
| 2520 | mov r1, sp |
| 2521 | vst1.8 {q0}, [sp,:128] |
| 2522 | mov r2, r10 |
| 2523 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2524 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2525 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2526 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2527 | vld1.8 {q0}, [sp,:128] |
| 2528 | veor q0, q0, q9 |
| 2529 | vst1.8 {q0}, [r8] |
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 | mov r6, r8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2532 | .Lxts_dec_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2533 | ldrb r1, [r8] |
| 2534 | ldrb r0, [r7], #1 |
| 2535 | strb r1, [r8, #0x10] |
| 2536 | strb r0, [r8], #1 |
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 | subs r9, #1 |
| 2539 | bhi .Lxts_dec_steal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2540 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2541 | vld1.8 {q0}, [r6] |
| 2542 | mov r0, sp |
| 2543 | veor q0, q8 |
| 2544 | mov r1, sp |
| 2545 | vst1.8 {q0}, [sp,:128] |
| 2546 | mov r2, r10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2547 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2548 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2549 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2550 | vld1.8 {q0}, [sp,:128] |
| 2551 | veor q0, q0, q8 |
| 2552 | vst1.8 {q0}, [r6] |
| 2553 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2554 | #endif |
| 2555 | |
| 2556 | .Lxts_dec_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2557 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2558 | vmov.i32 q0, #0 |
| 2559 | vmov.i32 q1, #0 |
| 2560 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2561 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2562 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2563 | .Lxts_dec_bzero:@ wipe key schedule [if any] |
| 2564 | vstmia sp!, {q0,q1} |
| 2565 | cmp sp, r0 |
| 2566 | bne .Lxts_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2567 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2568 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2569 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2570 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2571 | #endif |
| 2572 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2573 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2574 | |
| 2575 | .size bsaes_xts_decrypt,.-bsaes_xts_decrypt |
| 2576 | #endif |
| 2577 | #endif |