Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 1 | #if defined(__arm__) |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 2 | @ Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | @ |
| 4 | @ Licensed under the OpenSSL license (the "License"). You may not use |
| 5 | @ this file except in compliance with the License. You can obtain a copy |
| 6 | @ in the file LICENSE in the source distribution or at |
| 7 | @ https://www.openssl.org/source/license.html |
| 8 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 9 | |
| 10 | @ ==================================================================== |
| 11 | @ Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| 12 | @ project. The module is, however, dual licensed under OpenSSL and |
| 13 | @ CRYPTOGAMS licenses depending on where you obtain it. For further |
| 14 | @ details see http://www.openssl.org/~appro/cryptogams/. |
| 15 | @ |
| 16 | @ Specific modes and adaptation for Linux kernel by Ard Biesheuvel |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame^] | 17 | @ of Linaro. Permission to use under GPL terms is granted. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 18 | @ ==================================================================== |
| 19 | |
| 20 | @ Bit-sliced AES for ARM NEON |
| 21 | @ |
| 22 | @ February 2012. |
| 23 | @ |
| 24 | @ This implementation is direct adaptation of bsaes-x86_64 module for |
| 25 | @ ARM NEON. Except that this module is endian-neutral [in sense that |
| 26 | @ it can be compiled for either endianness] by courtesy of vld1.8's |
| 27 | @ neutrality. Initial version doesn't implement interface to OpenSSL, |
| 28 | @ only low-level primitives and unsupported entry points, just enough |
| 29 | @ to collect performance results, which for Cortex-A8 core are: |
| 30 | @ |
| 31 | @ encrypt 19.5 cycles per byte processed with 128-bit key |
| 32 | @ decrypt 22.1 cycles per byte processed with 128-bit key |
| 33 | @ key conv. 440 cycles per 128-bit key/0.18 of 8x block |
| 34 | @ |
| 35 | @ Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7, |
| 36 | @ which is [much] worse than anticipated (for further details see |
| 37 | @ http://www.openssl.org/~appro/Snapdragon-S4.html). |
| 38 | @ |
| 39 | @ Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code |
| 40 | @ manages in 20.0 cycles]. |
| 41 | @ |
| 42 | @ When comparing to x86_64 results keep in mind that NEON unit is |
| 43 | @ [mostly] single-issue and thus can't [fully] benefit from |
| 44 | @ instruction-level parallelism. And when comparing to aes-armv4 |
| 45 | @ results keep in mind key schedule conversion overhead (see |
| 46 | @ bsaes-x86_64.pl for further details)... |
| 47 | @ |
| 48 | @ <appro@openssl.org> |
| 49 | |
| 50 | @ April-August 2013 |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame^] | 51 | @ Add CBC, CTR and XTS subroutines and adapt for kernel use; courtesy of Ard. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 52 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 53 | #ifndef __KERNEL__ |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 54 | # include <openssl/arm_arch.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 55 | |
| 56 | # define VFP_ABI_PUSH vstmdb sp!,{d8-d15} |
| 57 | # define VFP_ABI_POP vldmia sp!,{d8-d15} |
| 58 | # define VFP_ABI_FRAME 0x40 |
| 59 | #else |
| 60 | # define VFP_ABI_PUSH |
| 61 | # define VFP_ABI_POP |
| 62 | # define VFP_ABI_FRAME 0 |
| 63 | # define BSAES_ASM_EXTENDED_KEY |
| 64 | # define XTS_CHAIN_TWEAK |
| 65 | # define __ARM_ARCH__ __LINUX_ARM_ARCH__ |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 66 | # define __ARM_MAX_ARCH__ 7 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 67 | #endif |
| 68 | |
| 69 | #ifdef __thumb__ |
| 70 | # define adrl adr |
| 71 | #endif |
| 72 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 73 | #if __ARM_MAX_ARCH__>=7 |
| 74 | .arch armv7-a |
| 75 | .fpu neon |
| 76 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 77 | .text |
| 78 | .syntax unified @ ARMv7-capable assembler is expected to handle this |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 79 | #if defined(__thumb2__) && !defined(__APPLE__) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 80 | .thumb |
| 81 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 82 | .code 32 |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 83 | # undef __thumb2__ |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 84 | #endif |
| 85 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 86 | .type _bsaes_decrypt8,%function |
| 87 | .align 4 |
| 88 | _bsaes_decrypt8: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 89 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 90 | vldmia r4!, {q9} @ round 0 key |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame^] | 91 | #if defined(__thumb2__) || defined(__APPLE__) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 92 | adr r6,.LM0ISR |
| 93 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 94 | add r6,r6,#.LM0ISR-_bsaes_decrypt8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 95 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 96 | |
| 97 | vldmia r6!, {q8} @ .LM0ISR |
| 98 | veor q10, q0, q9 @ xor with round0 key |
| 99 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 100 | vtbl.8 d0, {q10}, d16 |
| 101 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 102 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 103 | vtbl.8 d2, {q11}, d16 |
| 104 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 105 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 106 | vtbl.8 d4, {q12}, d16 |
| 107 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 108 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 109 | vtbl.8 d6, {q13}, d16 |
| 110 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 111 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 112 | vtbl.8 d8, {q14}, d16 |
| 113 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 114 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 115 | vtbl.8 d10, {q15}, d16 |
| 116 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 117 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 118 | vtbl.8 d12, {q10}, d16 |
| 119 | vtbl.8 d13, {q10}, d17 |
| 120 | vtbl.8 d14, {q11}, d16 |
| 121 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 122 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 123 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 124 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 125 | vshr.u64 q11, q4, #1 |
| 126 | veor q10, q10, q7 |
| 127 | veor q11, q11, q5 |
| 128 | vand q10, q10, q8 |
| 129 | vand q11, q11, q8 |
| 130 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 131 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 132 | veor q5, q5, q11 |
| 133 | vshl.u64 q11, q11, #1 |
| 134 | veor q6, q6, q10 |
| 135 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 136 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 137 | vshr.u64 q11, q0, #1 |
| 138 | veor q10, q10, q3 |
| 139 | veor q11, q11, q1 |
| 140 | vand q10, q10, q8 |
| 141 | vand q11, q11, q8 |
| 142 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 143 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 144 | veor q1, q1, q11 |
| 145 | vshl.u64 q11, q11, #1 |
| 146 | veor q2, q2, q10 |
| 147 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 148 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 149 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 150 | vshr.u64 q11, q4, #2 |
| 151 | veor q10, q10, q7 |
| 152 | veor q11, q11, q6 |
| 153 | vand q10, q10, q9 |
| 154 | vand q11, q11, q9 |
| 155 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 156 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 157 | veor q6, q6, q11 |
| 158 | vshl.u64 q11, q11, #2 |
| 159 | veor q5, q5, q10 |
| 160 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 161 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 162 | vshr.u64 q11, q0, #2 |
| 163 | veor q10, q10, q3 |
| 164 | veor q11, q11, q2 |
| 165 | vand q10, q10, q9 |
| 166 | vand q11, q11, q9 |
| 167 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 168 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 169 | veor q2, q2, q11 |
| 170 | vshl.u64 q11, q11, #2 |
| 171 | veor q1, q1, q10 |
| 172 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 173 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 174 | vshr.u64 q11, q2, #4 |
| 175 | veor q10, q10, q7 |
| 176 | veor q11, q11, q6 |
| 177 | vand q10, q10, q8 |
| 178 | vand q11, q11, q8 |
| 179 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 180 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 181 | veor q6, q6, q11 |
| 182 | vshl.u64 q11, q11, #4 |
| 183 | veor q3, q3, q10 |
| 184 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 185 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 186 | vshr.u64 q11, q0, #4 |
| 187 | veor q10, q10, q5 |
| 188 | veor q11, q11, q4 |
| 189 | vand q10, q10, q8 |
| 190 | vand q11, q11, q8 |
| 191 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 192 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 193 | veor q4, q4, q11 |
| 194 | vshl.u64 q11, q11, #4 |
| 195 | veor q1, q1, q10 |
| 196 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 197 | sub r5,r5,#1 |
| 198 | b .Ldec_sbox |
| 199 | .align 4 |
| 200 | .Ldec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 201 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 202 | veor q8, q8, q0 |
| 203 | veor q9, q9, q1 |
| 204 | vtbl.8 d0, {q8}, d24 |
| 205 | vtbl.8 d1, {q8}, d25 |
| 206 | vldmia r4!, {q8} |
| 207 | veor q10, q10, q2 |
| 208 | vtbl.8 d2, {q9}, d24 |
| 209 | vtbl.8 d3, {q9}, d25 |
| 210 | vldmia r4!, {q9} |
| 211 | veor q11, q11, q3 |
| 212 | vtbl.8 d4, {q10}, d24 |
| 213 | vtbl.8 d5, {q10}, d25 |
| 214 | vldmia r4!, {q10} |
| 215 | vtbl.8 d6, {q11}, d24 |
| 216 | vtbl.8 d7, {q11}, d25 |
| 217 | vldmia r4!, {q11} |
| 218 | veor q8, q8, q4 |
| 219 | veor q9, q9, q5 |
| 220 | vtbl.8 d8, {q8}, d24 |
| 221 | vtbl.8 d9, {q8}, d25 |
| 222 | veor q10, q10, q6 |
| 223 | vtbl.8 d10, {q9}, d24 |
| 224 | vtbl.8 d11, {q9}, d25 |
| 225 | veor q11, q11, q7 |
| 226 | vtbl.8 d12, {q10}, d24 |
| 227 | vtbl.8 d13, {q10}, d25 |
| 228 | vtbl.8 d14, {q11}, d24 |
| 229 | vtbl.8 d15, {q11}, d25 |
| 230 | .Ldec_sbox: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 231 | veor q1, q1, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 232 | veor q3, q3, q4 |
| 233 | |
| 234 | veor q4, q4, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 235 | veor q1, q1, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 236 | veor q2, q2, q7 |
| 237 | veor q6, q6, q4 |
| 238 | |
| 239 | veor q0, q0, q1 |
| 240 | veor q2, q2, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 241 | veor q7, q7, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 242 | veor q3, q3, q0 |
| 243 | veor q5, q5, q0 |
| 244 | veor q1, q1, q3 |
| 245 | veor q11, q3, q0 |
| 246 | veor q10, q7, q4 |
| 247 | veor q9, q1, q6 |
| 248 | veor q13, q4, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 249 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 250 | veor q12, q5, q2 |
| 251 | |
| 252 | vorr q10, q10, q9 |
| 253 | veor q15, q11, q8 |
| 254 | vand q14, q11, q12 |
| 255 | vorr q11, q11, q12 |
| 256 | veor q12, q12, q9 |
| 257 | vand q8, q8, q9 |
| 258 | veor q9, q6, q2 |
| 259 | vand q15, q15, q12 |
| 260 | vand q13, q13, q9 |
| 261 | veor q9, q3, q7 |
| 262 | veor q12, q1, q5 |
| 263 | veor q11, q11, q13 |
| 264 | veor q10, q10, q13 |
| 265 | vand q13, q9, q12 |
| 266 | vorr q9, q9, q12 |
| 267 | veor q11, q11, q15 |
| 268 | veor q8, q8, q13 |
| 269 | veor q10, q10, q14 |
| 270 | veor q9, q9, q15 |
| 271 | veor q8, q8, q14 |
| 272 | vand q12, q4, q6 |
| 273 | veor q9, q9, q14 |
| 274 | vand q13, q0, q2 |
| 275 | vand q14, q7, q1 |
| 276 | vorr q15, q3, q5 |
| 277 | veor q11, q11, q12 |
| 278 | veor q9, q9, q14 |
| 279 | veor q8, q8, q15 |
| 280 | veor q10, q10, q13 |
| 281 | |
| 282 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 283 | |
| 284 | @ new smaller inversion |
| 285 | |
| 286 | vand q14, q11, q9 |
| 287 | vmov q12, q8 |
| 288 | |
| 289 | veor q13, q10, q14 |
| 290 | veor q15, q8, q14 |
| 291 | veor q14, q8, q14 @ q14=q15 |
| 292 | |
| 293 | vbsl q13, q9, q8 |
| 294 | vbsl q15, q11, q10 |
| 295 | veor q11, q11, q10 |
| 296 | |
| 297 | vbsl q12, q13, q14 |
| 298 | vbsl q8, q14, q13 |
| 299 | |
| 300 | vand q14, q12, q15 |
| 301 | veor q9, q9, q8 |
| 302 | |
| 303 | veor q14, q14, q11 |
| 304 | veor q12, q5, q2 |
| 305 | veor q8, q1, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 306 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 307 | vand q10, q10, q5 |
| 308 | veor q5, q5, q1 |
| 309 | vand q11, q1, q15 |
| 310 | vand q5, q5, q14 |
| 311 | veor q1, q11, q10 |
| 312 | veor q5, q5, q11 |
| 313 | veor q15, q15, q13 |
| 314 | veor q14, q14, q9 |
| 315 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 316 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 317 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 318 | vand q10, q10, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 319 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 320 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 321 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 322 | vand q6, q6, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 323 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 324 | vand q2, q2, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 325 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 326 | veor q2, q2, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 327 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 328 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 329 | veor q5, q5, q12 |
| 330 | veor q2, q2, q12 |
| 331 | veor q1, q1, q8 |
| 332 | veor q6, q6, q8 |
| 333 | |
| 334 | veor q12, q3, q0 |
| 335 | veor q8, q7, q4 |
| 336 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 337 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 338 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 339 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 340 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 341 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 342 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 343 | vand q4, q4, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 344 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 345 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 346 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 347 | veor q0, q0, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 348 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 349 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 350 | veor q15, q15, q13 |
| 351 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 352 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 353 | vand q10, q10, q3 |
| 354 | veor q3, q3, q7 |
| 355 | vand q11, q7, q15 |
| 356 | vand q3, q3, q14 |
| 357 | veor q7, q11, q10 |
| 358 | veor q3, q3, q11 |
| 359 | veor q3, q3, q12 |
| 360 | veor q0, q0, q12 |
| 361 | veor q7, q7, q8 |
| 362 | veor q4, q4, q8 |
| 363 | veor q1, q1, q7 |
| 364 | veor q6, q6, q5 |
| 365 | |
| 366 | veor q4, q4, q1 |
| 367 | veor q2, q2, q7 |
| 368 | veor q5, q5, q7 |
| 369 | veor q4, q4, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 370 | veor q7, q7, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 371 | veor q4, q4, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 372 | veor q3, q3, q6 |
| 373 | veor q6, q6, q1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 374 | veor q3, q3, q4 |
| 375 | |
| 376 | veor q4, q4, q0 |
| 377 | veor q7, q7, q3 |
| 378 | subs r5,r5,#1 |
| 379 | bcc .Ldec_done |
| 380 | @ multiplication by 0x05-0x00-0x04-0x00 |
| 381 | vext.8 q8, q0, q0, #8 |
| 382 | vext.8 q14, q3, q3, #8 |
| 383 | vext.8 q15, q5, q5, #8 |
| 384 | veor q8, q8, q0 |
| 385 | vext.8 q9, q1, q1, #8 |
| 386 | veor q14, q14, q3 |
| 387 | vext.8 q10, q6, q6, #8 |
| 388 | veor q15, q15, q5 |
| 389 | vext.8 q11, q4, q4, #8 |
| 390 | veor q9, q9, q1 |
| 391 | vext.8 q12, q2, q2, #8 |
| 392 | veor q10, q10, q6 |
| 393 | vext.8 q13, q7, q7, #8 |
| 394 | veor q11, q11, q4 |
| 395 | veor q12, q12, q2 |
| 396 | veor q13, q13, q7 |
| 397 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 398 | veor q0, q0, q14 |
| 399 | veor q1, q1, q14 |
| 400 | veor q6, q6, q8 |
| 401 | veor q2, q2, q10 |
| 402 | veor q4, q4, q9 |
| 403 | veor q1, q1, q15 |
| 404 | veor q6, q6, q15 |
| 405 | veor q2, q2, q14 |
| 406 | veor q7, q7, q11 |
| 407 | veor q4, q4, q14 |
| 408 | veor q3, q3, q12 |
| 409 | veor q2, q2, q15 |
| 410 | veor q7, q7, q15 |
| 411 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 412 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 413 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 414 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 415 | vext.8 q10, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 416 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 417 | vext.8 q11, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 418 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 419 | vext.8 q12, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 420 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 421 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 422 | veor q2, q2, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 423 | vext.8 q14, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 424 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 425 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 426 | veor q3, q3, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 427 | |
| 428 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 429 | veor q5, q5, q15 |
| 430 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 431 | veor q10, q10, q1 |
| 432 | veor q8, q8, q5 |
| 433 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 434 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 435 | veor q13, q13, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 436 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 437 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 438 | veor q1, q1, q9 |
| 439 | vext.8 q8, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 440 | veor q12, q12, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 441 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 442 | veor q15, q15, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 443 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 444 | veor q11, q11, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 445 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 446 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 447 | vext.8 q4, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 448 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 449 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 450 | veor q5, q9, q13 |
| 451 | veor q11, q11, q2 |
| 452 | veor q7, q7, q15 |
| 453 | veor q6, q4, q14 |
| 454 | veor q4, q8, q12 |
| 455 | veor q2, q3, q10 |
| 456 | vmov q3, q11 |
| 457 | @ vmov q5, q9 |
| 458 | vldmia r6, {q12} @ .LISR |
| 459 | ite eq @ Thumb2 thing, sanity check in ARM |
| 460 | addeq r6,r6,#0x10 |
| 461 | bne .Ldec_loop |
| 462 | vldmia r6, {q12} @ .LISRM0 |
| 463 | b .Ldec_loop |
| 464 | .align 4 |
| 465 | .Ldec_done: |
| 466 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 467 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 468 | vshr.u64 q10, q3, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 469 | vshr.u64 q11, q2, #1 |
| 470 | veor q10, q10, q5 |
| 471 | veor q11, q11, q7 |
| 472 | vand q10, q10, q8 |
| 473 | vand q11, q11, q8 |
| 474 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 475 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 476 | veor q7, q7, q11 |
| 477 | vshl.u64 q11, q11, #1 |
| 478 | veor q3, q3, q10 |
| 479 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 480 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 481 | vshr.u64 q11, q0, #1 |
| 482 | veor q10, q10, q4 |
| 483 | veor q11, q11, q1 |
| 484 | vand q10, q10, q8 |
| 485 | vand q11, q11, q8 |
| 486 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 487 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 488 | veor q1, q1, q11 |
| 489 | vshl.u64 q11, q11, #1 |
| 490 | veor q6, q6, q10 |
| 491 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 492 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 493 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 494 | vshr.u64 q11, q2, #2 |
| 495 | veor q10, q10, q5 |
| 496 | veor q11, q11, q3 |
| 497 | vand q10, q10, q9 |
| 498 | vand q11, q11, q9 |
| 499 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 500 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 501 | veor q3, q3, q11 |
| 502 | vshl.u64 q11, q11, #2 |
| 503 | veor q7, q7, q10 |
| 504 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 505 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 506 | vshr.u64 q11, q0, #2 |
| 507 | veor q10, q10, q4 |
| 508 | veor q11, q11, q6 |
| 509 | vand q10, q10, q9 |
| 510 | vand q11, q11, q9 |
| 511 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 512 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 513 | veor q6, q6, q11 |
| 514 | vshl.u64 q11, q11, #2 |
| 515 | veor q1, q1, q10 |
| 516 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 517 | vshr.u64 q10, q4, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 518 | vshr.u64 q11, q6, #4 |
| 519 | veor q10, q10, q5 |
| 520 | veor q11, q11, q3 |
| 521 | vand q10, q10, q8 |
| 522 | vand q11, q11, q8 |
| 523 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 524 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 525 | veor q3, q3, q11 |
| 526 | vshl.u64 q11, q11, #4 |
| 527 | veor q4, q4, q10 |
| 528 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 529 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 530 | vshr.u64 q11, q0, #4 |
| 531 | veor q10, q10, q7 |
| 532 | veor q11, q11, q2 |
| 533 | vand q10, q10, q8 |
| 534 | vand q11, q11, q8 |
| 535 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 536 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 537 | veor q2, q2, q11 |
| 538 | vshl.u64 q11, q11, #4 |
| 539 | veor q1, q1, q10 |
| 540 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 541 | vldmia r4, {q8} @ last round key |
| 542 | veor q6, q6, q8 |
| 543 | veor q4, q4, q8 |
| 544 | veor q2, q2, q8 |
| 545 | veor q7, q7, q8 |
| 546 | veor q3, q3, q8 |
| 547 | veor q5, q5, q8 |
| 548 | veor q0, q0, q8 |
| 549 | veor q1, q1, q8 |
| 550 | bx lr |
| 551 | .size _bsaes_decrypt8,.-_bsaes_decrypt8 |
| 552 | |
| 553 | .type _bsaes_const,%object |
| 554 | .align 6 |
| 555 | _bsaes_const: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 556 | .LM0ISR:@ InvShiftRows constants |
| 557 | .quad 0x0a0e0206070b0f03, 0x0004080c0d010509 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 558 | .LISR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 559 | .quad 0x0504070602010003, 0x0f0e0d0c080b0a09 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 560 | .LISRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 561 | .quad 0x01040b0e0205080f, 0x0306090c00070a0d |
| 562 | .LM0SR:@ ShiftRows constants |
| 563 | .quad 0x0a0e02060f03070b, 0x0004080c05090d01 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 564 | .LSR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 565 | .quad 0x0504070600030201, 0x0f0e0d0c0a09080b |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 566 | .LSRM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 567 | .quad 0x0304090e00050a0f, 0x01060b0c0207080d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 568 | .LM0: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 569 | .quad 0x02060a0e03070b0f, 0x0004080c0105090d |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 570 | .LREVM0SR: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 571 | .quad 0x090d01050c000408, 0x03070b0f060a0e02 |
| 572 | .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 |
| 573 | .align 2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 574 | .align 6 |
| 575 | .size _bsaes_const,.-_bsaes_const |
| 576 | |
| 577 | .type _bsaes_encrypt8,%function |
| 578 | .align 4 |
| 579 | _bsaes_encrypt8: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 580 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 581 | vldmia r4!, {q9} @ round 0 key |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame^] | 582 | #if defined(__thumb2__) || defined(__APPLE__) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 583 | adr r6,.LM0SR |
| 584 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 585 | sub r6,r6,#_bsaes_encrypt8-.LM0SR |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 586 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 587 | |
| 588 | vldmia r6!, {q8} @ .LM0SR |
| 589 | _bsaes_encrypt8_alt: |
| 590 | veor q10, q0, q9 @ xor with round0 key |
| 591 | veor q11, q1, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 592 | vtbl.8 d0, {q10}, d16 |
| 593 | vtbl.8 d1, {q10}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 594 | veor q12, q2, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 595 | vtbl.8 d2, {q11}, d16 |
| 596 | vtbl.8 d3, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 597 | veor q13, q3, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 598 | vtbl.8 d4, {q12}, d16 |
| 599 | vtbl.8 d5, {q12}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 600 | veor q14, q4, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 601 | vtbl.8 d6, {q13}, d16 |
| 602 | vtbl.8 d7, {q13}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 603 | veor q15, q5, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 604 | vtbl.8 d8, {q14}, d16 |
| 605 | vtbl.8 d9, {q14}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 606 | veor q10, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 607 | vtbl.8 d10, {q15}, d16 |
| 608 | vtbl.8 d11, {q15}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 609 | veor q11, q7, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 610 | vtbl.8 d12, {q10}, d16 |
| 611 | vtbl.8 d13, {q10}, d17 |
| 612 | vtbl.8 d14, {q11}, d16 |
| 613 | vtbl.8 d15, {q11}, d17 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 614 | _bsaes_encrypt8_bitslice: |
| 615 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 616 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 617 | vshr.u64 q10, q6, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 618 | vshr.u64 q11, q4, #1 |
| 619 | veor q10, q10, q7 |
| 620 | veor q11, q11, q5 |
| 621 | vand q10, q10, q8 |
| 622 | vand q11, q11, q8 |
| 623 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 624 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 625 | veor q5, q5, q11 |
| 626 | vshl.u64 q11, q11, #1 |
| 627 | veor q6, q6, q10 |
| 628 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 629 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 630 | vshr.u64 q11, q0, #1 |
| 631 | veor q10, q10, q3 |
| 632 | veor q11, q11, q1 |
| 633 | vand q10, q10, q8 |
| 634 | vand q11, q11, q8 |
| 635 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 636 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 637 | veor q1, q1, q11 |
| 638 | vshl.u64 q11, q11, #1 |
| 639 | veor q2, q2, q10 |
| 640 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 641 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 642 | vshr.u64 q10, q5, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 643 | vshr.u64 q11, q4, #2 |
| 644 | veor q10, q10, q7 |
| 645 | veor q11, q11, q6 |
| 646 | vand q10, q10, q9 |
| 647 | vand q11, q11, q9 |
| 648 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 649 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 650 | veor q6, q6, q11 |
| 651 | vshl.u64 q11, q11, #2 |
| 652 | veor q5, q5, q10 |
| 653 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 654 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 655 | vshr.u64 q11, q0, #2 |
| 656 | veor q10, q10, q3 |
| 657 | veor q11, q11, q2 |
| 658 | vand q10, q10, q9 |
| 659 | vand q11, q11, q9 |
| 660 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 661 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 662 | veor q2, q2, q11 |
| 663 | vshl.u64 q11, q11, #2 |
| 664 | veor q1, q1, q10 |
| 665 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 666 | vshr.u64 q10, q3, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 667 | vshr.u64 q11, q2, #4 |
| 668 | veor q10, q10, q7 |
| 669 | veor q11, q11, q6 |
| 670 | vand q10, q10, q8 |
| 671 | vand q11, q11, q8 |
| 672 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 673 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 674 | veor q6, q6, q11 |
| 675 | vshl.u64 q11, q11, #4 |
| 676 | veor q3, q3, q10 |
| 677 | veor q2, q2, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 678 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 679 | vshr.u64 q11, q0, #4 |
| 680 | veor q10, q10, q5 |
| 681 | veor q11, q11, q4 |
| 682 | vand q10, q10, q8 |
| 683 | vand q11, q11, q8 |
| 684 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 685 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 686 | veor q4, q4, q11 |
| 687 | vshl.u64 q11, q11, #4 |
| 688 | veor q1, q1, q10 |
| 689 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 690 | sub r5,r5,#1 |
| 691 | b .Lenc_sbox |
| 692 | .align 4 |
| 693 | .Lenc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 694 | vldmia r4!, {q8,q9,q10,q11} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 695 | veor q8, q8, q0 |
| 696 | veor q9, q9, q1 |
| 697 | vtbl.8 d0, {q8}, d24 |
| 698 | vtbl.8 d1, {q8}, d25 |
| 699 | vldmia r4!, {q8} |
| 700 | veor q10, q10, q2 |
| 701 | vtbl.8 d2, {q9}, d24 |
| 702 | vtbl.8 d3, {q9}, d25 |
| 703 | vldmia r4!, {q9} |
| 704 | veor q11, q11, q3 |
| 705 | vtbl.8 d4, {q10}, d24 |
| 706 | vtbl.8 d5, {q10}, d25 |
| 707 | vldmia r4!, {q10} |
| 708 | vtbl.8 d6, {q11}, d24 |
| 709 | vtbl.8 d7, {q11}, d25 |
| 710 | vldmia r4!, {q11} |
| 711 | veor q8, q8, q4 |
| 712 | veor q9, q9, q5 |
| 713 | vtbl.8 d8, {q8}, d24 |
| 714 | vtbl.8 d9, {q8}, d25 |
| 715 | veor q10, q10, q6 |
| 716 | vtbl.8 d10, {q9}, d24 |
| 717 | vtbl.8 d11, {q9}, d25 |
| 718 | veor q11, q11, q7 |
| 719 | vtbl.8 d12, {q10}, d24 |
| 720 | vtbl.8 d13, {q10}, d25 |
| 721 | vtbl.8 d14, {q11}, d24 |
| 722 | vtbl.8 d15, {q11}, d25 |
| 723 | .Lenc_sbox: |
| 724 | veor q2, q2, q1 |
| 725 | veor q5, q5, q6 |
| 726 | veor q3, q3, q0 |
| 727 | veor q6, q6, q2 |
| 728 | veor q5, q5, q0 |
| 729 | |
| 730 | veor q6, q6, q3 |
| 731 | veor q3, q3, q7 |
| 732 | veor q7, q7, q5 |
| 733 | veor q3, q3, q4 |
| 734 | veor q4, q4, q5 |
| 735 | |
| 736 | veor q2, q2, q7 |
| 737 | veor q3, q3, q1 |
| 738 | veor q1, q1, q5 |
| 739 | veor q11, q7, q4 |
| 740 | veor q10, q1, q2 |
| 741 | veor q9, q5, q3 |
| 742 | veor q13, q2, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 743 | vmov q8, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 744 | veor q12, q6, q0 |
| 745 | |
| 746 | vorr q10, q10, q9 |
| 747 | veor q15, q11, q8 |
| 748 | vand q14, q11, q12 |
| 749 | vorr q11, q11, q12 |
| 750 | veor q12, q12, q9 |
| 751 | vand q8, q8, q9 |
| 752 | veor q9, q3, q0 |
| 753 | vand q15, q15, q12 |
| 754 | vand q13, q13, q9 |
| 755 | veor q9, q7, q1 |
| 756 | veor q12, q5, q6 |
| 757 | veor q11, q11, q13 |
| 758 | veor q10, q10, q13 |
| 759 | vand q13, q9, q12 |
| 760 | vorr q9, q9, q12 |
| 761 | veor q11, q11, q15 |
| 762 | veor q8, q8, q13 |
| 763 | veor q10, q10, q14 |
| 764 | veor q9, q9, q15 |
| 765 | veor q8, q8, q14 |
| 766 | vand q12, q2, q3 |
| 767 | veor q9, q9, q14 |
| 768 | vand q13, q4, q0 |
| 769 | vand q14, q1, q5 |
| 770 | vorr q15, q7, q6 |
| 771 | veor q11, q11, q12 |
| 772 | veor q9, q9, q14 |
| 773 | veor q8, q8, q15 |
| 774 | veor q10, q10, q13 |
| 775 | |
| 776 | @ Inv_GF16 0, 1, 2, 3, s0, s1, s2, s3 |
| 777 | |
| 778 | @ new smaller inversion |
| 779 | |
| 780 | vand q14, q11, q9 |
| 781 | vmov q12, q8 |
| 782 | |
| 783 | veor q13, q10, q14 |
| 784 | veor q15, q8, q14 |
| 785 | veor q14, q8, q14 @ q14=q15 |
| 786 | |
| 787 | vbsl q13, q9, q8 |
| 788 | vbsl q15, q11, q10 |
| 789 | veor q11, q11, q10 |
| 790 | |
| 791 | vbsl q12, q13, q14 |
| 792 | vbsl q8, q14, q13 |
| 793 | |
| 794 | vand q14, q12, q15 |
| 795 | veor q9, q9, q8 |
| 796 | |
| 797 | veor q14, q14, q11 |
| 798 | veor q12, q6, q0 |
| 799 | veor q8, q5, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 800 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 801 | vand q10, q10, q6 |
| 802 | veor q6, q6, q5 |
| 803 | vand q11, q5, q15 |
| 804 | vand q6, q6, q14 |
| 805 | veor q5, q11, q10 |
| 806 | veor q6, q6, q11 |
| 807 | veor q15, q15, q13 |
| 808 | veor q14, q14, q9 |
| 809 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 810 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 811 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 812 | vand q10, q10, q0 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 813 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 814 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 815 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 816 | vand q3, q3, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 817 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 818 | vand q0, q0, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 819 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 820 | veor q0, q0, q3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 821 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 822 | veor q3, q3, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 823 | veor q6, q6, q12 |
| 824 | veor q0, q0, q12 |
| 825 | veor q5, q5, q8 |
| 826 | veor q3, q3, q8 |
| 827 | |
| 828 | veor q12, q7, q4 |
| 829 | veor q8, q1, q2 |
| 830 | veor q11, q15, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 831 | veor q10, q13, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 832 | vand q11, q11, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 833 | vand q10, q10, q4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 834 | veor q12, q12, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 835 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 836 | vand q8, q8, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 837 | vand q2, q2, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 838 | vand q12, q12, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 839 | vand q4, q4, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 840 | veor q8, q8, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 841 | veor q4, q4, q2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 842 | veor q12, q12, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 843 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 844 | veor q15, q15, q13 |
| 845 | veor q14, q14, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 846 | veor q10, q15, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 847 | vand q10, q10, q7 |
| 848 | veor q7, q7, q1 |
| 849 | vand q11, q1, q15 |
| 850 | vand q7, q7, q14 |
| 851 | veor q1, q11, q10 |
| 852 | veor q7, q7, q11 |
| 853 | veor q7, q7, q12 |
| 854 | veor q4, q4, q12 |
| 855 | veor q1, q1, q8 |
| 856 | veor q2, q2, q8 |
| 857 | veor q7, q7, q0 |
| 858 | veor q1, q1, q6 |
| 859 | veor q6, q6, q0 |
| 860 | veor q4, q4, q7 |
| 861 | veor q0, q0, q1 |
| 862 | |
| 863 | veor q1, q1, q5 |
| 864 | veor q5, q5, q2 |
| 865 | veor q2, q2, q3 |
| 866 | veor q3, q3, q5 |
| 867 | veor q4, q4, q5 |
| 868 | |
| 869 | veor q6, q6, q3 |
| 870 | subs r5,r5,#1 |
| 871 | bcc .Lenc_done |
| 872 | vext.8 q8, q0, q0, #12 @ x0 <<< 32 |
| 873 | vext.8 q9, q1, q1, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 874 | veor q0, q0, q8 @ x0 ^ (x0 <<< 32) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 875 | vext.8 q10, q4, q4, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 876 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 877 | vext.8 q11, q6, q6, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 878 | veor q4, q4, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 879 | vext.8 q12, q3, q3, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 880 | veor q6, q6, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 881 | vext.8 q13, q7, q7, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 882 | veor q3, q3, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 883 | vext.8 q14, q2, q2, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 884 | veor q7, q7, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 885 | vext.8 q15, q5, q5, #12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 886 | veor q2, q2, q14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 887 | |
| 888 | veor q9, q9, q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 889 | veor q5, q5, q15 |
| 890 | vext.8 q0, q0, q0, #8 @ (x0 ^ (x0 <<< 32)) <<< 64) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 891 | veor q10, q10, q1 |
| 892 | veor q8, q8, q5 |
| 893 | veor q9, q9, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 894 | vext.8 q1, q1, q1, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 895 | veor q13, q13, q3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 896 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 897 | veor q14, q14, q7 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 898 | veor q1, q1, q9 |
| 899 | vext.8 q8, q3, q3, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 900 | veor q12, q12, q6 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 901 | vext.8 q9, q7, q7, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 902 | veor q15, q15, q2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 903 | vext.8 q3, q6, q6, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 904 | veor q11, q11, q4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 905 | vext.8 q7, q5, q5, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 906 | veor q12, q12, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 907 | vext.8 q6, q2, q2, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 908 | veor q11, q11, q5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 909 | vext.8 q2, q4, q4, #8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 910 | veor q5, q9, q13 |
| 911 | veor q4, q8, q12 |
| 912 | veor q3, q3, q11 |
| 913 | veor q7, q7, q15 |
| 914 | veor q6, q6, q14 |
| 915 | @ vmov q4, q8 |
| 916 | veor q2, q2, q10 |
| 917 | @ vmov q5, q9 |
| 918 | vldmia r6, {q12} @ .LSR |
| 919 | ite eq @ Thumb2 thing, samity check in ARM |
| 920 | addeq r6,r6,#0x10 |
| 921 | bne .Lenc_loop |
| 922 | vldmia r6, {q12} @ .LSRM0 |
| 923 | b .Lenc_loop |
| 924 | .align 4 |
| 925 | .Lenc_done: |
| 926 | vmov.i8 q8,#0x55 @ compose .LBS0 |
| 927 | vmov.i8 q9,#0x33 @ compose .LBS1 |
| 928 | vshr.u64 q10, q2, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 929 | vshr.u64 q11, q3, #1 |
| 930 | veor q10, q10, q5 |
| 931 | veor q11, q11, q7 |
| 932 | vand q10, q10, q8 |
| 933 | vand q11, q11, q8 |
| 934 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 935 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 936 | veor q7, q7, q11 |
| 937 | vshl.u64 q11, q11, #1 |
| 938 | veor q2, q2, q10 |
| 939 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 940 | vshr.u64 q10, q4, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 941 | vshr.u64 q11, q0, #1 |
| 942 | veor q10, q10, q6 |
| 943 | veor q11, q11, q1 |
| 944 | vand q10, q10, q8 |
| 945 | vand q11, q11, q8 |
| 946 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 947 | vshl.u64 q10, q10, #1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 948 | veor q1, q1, q11 |
| 949 | vshl.u64 q11, q11, #1 |
| 950 | veor q4, q4, q10 |
| 951 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 952 | vmov.i8 q8,#0x0f @ compose .LBS2 |
| 953 | vshr.u64 q10, q7, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 954 | vshr.u64 q11, q3, #2 |
| 955 | veor q10, q10, q5 |
| 956 | veor q11, q11, q2 |
| 957 | vand q10, q10, q9 |
| 958 | vand q11, q11, q9 |
| 959 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 960 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 961 | veor q2, q2, q11 |
| 962 | vshl.u64 q11, q11, #2 |
| 963 | veor q7, q7, q10 |
| 964 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 965 | vshr.u64 q10, q1, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 966 | vshr.u64 q11, q0, #2 |
| 967 | veor q10, q10, q6 |
| 968 | veor q11, q11, q4 |
| 969 | vand q10, q10, q9 |
| 970 | vand q11, q11, q9 |
| 971 | veor q6, q6, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 972 | vshl.u64 q10, q10, #2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 973 | veor q4, q4, q11 |
| 974 | vshl.u64 q11, q11, #2 |
| 975 | veor q1, q1, q10 |
| 976 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 977 | vshr.u64 q10, q6, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 978 | vshr.u64 q11, q4, #4 |
| 979 | veor q10, q10, q5 |
| 980 | veor q11, q11, q2 |
| 981 | vand q10, q10, q8 |
| 982 | vand q11, q11, q8 |
| 983 | veor q5, q5, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 984 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 985 | veor q2, q2, q11 |
| 986 | vshl.u64 q11, q11, #4 |
| 987 | veor q6, q6, q10 |
| 988 | veor q4, q4, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 989 | vshr.u64 q10, q1, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 990 | vshr.u64 q11, q0, #4 |
| 991 | veor q10, q10, q7 |
| 992 | veor q11, q11, q3 |
| 993 | vand q10, q10, q8 |
| 994 | vand q11, q11, q8 |
| 995 | veor q7, q7, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 996 | vshl.u64 q10, q10, #4 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 997 | veor q3, q3, q11 |
| 998 | vshl.u64 q11, q11, #4 |
| 999 | veor q1, q1, q10 |
| 1000 | veor q0, q0, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1001 | vldmia r4, {q8} @ last round key |
| 1002 | veor q4, q4, q8 |
| 1003 | veor q6, q6, q8 |
| 1004 | veor q3, q3, q8 |
| 1005 | veor q7, q7, q8 |
| 1006 | veor q2, q2, q8 |
| 1007 | veor q5, q5, q8 |
| 1008 | veor q0, q0, q8 |
| 1009 | veor q1, q1, q8 |
| 1010 | bx lr |
| 1011 | .size _bsaes_encrypt8,.-_bsaes_encrypt8 |
| 1012 | .type _bsaes_key_convert,%function |
| 1013 | .align 4 |
| 1014 | _bsaes_key_convert: |
Robert Sloan | d5c2215 | 2017-11-13 09:22:12 -0800 | [diff] [blame] | 1015 | adr r6,. |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1016 | vld1.8 {q7}, [r4]! @ load round 0 key |
Robert Sloan | ab8b888 | 2018-03-26 11:39:51 -0700 | [diff] [blame^] | 1017 | #if defined(__thumb2__) || defined(__APPLE__) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1018 | adr r6,.LM0 |
| 1019 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1020 | sub r6,r6,#_bsaes_key_convert-.LM0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1021 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1022 | vld1.8 {q15}, [r4]! @ load round 1 key |
| 1023 | |
| 1024 | vmov.i8 q8, #0x01 @ bit masks |
| 1025 | vmov.i8 q9, #0x02 |
| 1026 | vmov.i8 q10, #0x04 |
| 1027 | vmov.i8 q11, #0x08 |
| 1028 | vmov.i8 q12, #0x10 |
| 1029 | vmov.i8 q13, #0x20 |
| 1030 | vldmia r6, {q14} @ .LM0 |
| 1031 | |
| 1032 | #ifdef __ARMEL__ |
| 1033 | vrev32.8 q7, q7 |
| 1034 | vrev32.8 q15, q15 |
| 1035 | #endif |
| 1036 | sub r5,r5,#1 |
| 1037 | vstmia r12!, {q7} @ save round 0 key |
| 1038 | b .Lkey_loop |
| 1039 | |
| 1040 | .align 4 |
| 1041 | .Lkey_loop: |
| 1042 | vtbl.8 d14,{q15},d28 |
| 1043 | vtbl.8 d15,{q15},d29 |
| 1044 | vmov.i8 q6, #0x40 |
| 1045 | vmov.i8 q15, #0x80 |
| 1046 | |
| 1047 | vtst.8 q0, q7, q8 |
| 1048 | vtst.8 q1, q7, q9 |
| 1049 | vtst.8 q2, q7, q10 |
| 1050 | vtst.8 q3, q7, q11 |
| 1051 | vtst.8 q4, q7, q12 |
| 1052 | vtst.8 q5, q7, q13 |
| 1053 | vtst.8 q6, q7, q6 |
| 1054 | vtst.8 q7, q7, q15 |
| 1055 | vld1.8 {q15}, [r4]! @ load next round key |
| 1056 | vmvn q0, q0 @ "pnot" |
| 1057 | vmvn q1, q1 |
| 1058 | vmvn q5, q5 |
| 1059 | vmvn q6, q6 |
| 1060 | #ifdef __ARMEL__ |
| 1061 | vrev32.8 q15, q15 |
| 1062 | #endif |
| 1063 | subs r5,r5,#1 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1064 | 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] | 1065 | bne .Lkey_loop |
| 1066 | |
| 1067 | vmov.i8 q7,#0x63 @ compose .L63 |
| 1068 | @ don't save last round key |
| 1069 | bx lr |
| 1070 | .size _bsaes_key_convert,.-_bsaes_key_convert |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1071 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1072 | |
| 1073 | |
| 1074 | .globl bsaes_cbc_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1075 | .hidden bsaes_cbc_encrypt |
| 1076 | .type bsaes_cbc_encrypt,%function |
| 1077 | .align 5 |
| 1078 | bsaes_cbc_encrypt: |
| 1079 | #ifndef __KERNEL__ |
| 1080 | cmp r2, #128 |
| 1081 | #ifndef __thumb__ |
| 1082 | blo AES_cbc_encrypt |
| 1083 | #else |
| 1084 | bhs 1f |
| 1085 | b AES_cbc_encrypt |
| 1086 | 1: |
| 1087 | #endif |
| 1088 | #endif |
| 1089 | |
| 1090 | @ it is up to the caller to make sure we are called with enc == 0 |
| 1091 | |
| 1092 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1093 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1094 | VFP_ABI_PUSH |
| 1095 | ldr r8, [ip] @ IV is 1st arg on the stack |
| 1096 | mov r2, r2, lsr#4 @ len in 16 byte blocks |
| 1097 | sub sp, #0x10 @ scratch space to carry over the IV |
| 1098 | mov r9, sp @ save sp |
| 1099 | |
| 1100 | ldr r10, [r3, #240] @ get # of rounds |
| 1101 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1102 | @ allocate the key schedule on the stack |
| 1103 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1104 | add r12, #96 @ sifze of bit-slices key schedule |
| 1105 | |
| 1106 | @ populate the key schedule |
| 1107 | mov r4, r3 @ pass key |
| 1108 | mov r5, r10 @ pass # of rounds |
| 1109 | mov sp, r12 @ sp is sp |
| 1110 | bl _bsaes_key_convert |
| 1111 | vldmia sp, {q6} |
| 1112 | vstmia r12, {q15} @ save last round key |
| 1113 | veor q7, q7, q6 @ fix up round 0 key |
| 1114 | vstmia sp, {q7} |
| 1115 | #else |
| 1116 | ldr r12, [r3, #244] |
| 1117 | eors r12, #1 |
| 1118 | beq 0f |
| 1119 | |
| 1120 | @ populate the key schedule |
| 1121 | str r12, [r3, #244] |
| 1122 | mov r4, r3 @ pass key |
| 1123 | mov r5, r10 @ pass # of rounds |
| 1124 | add r12, r3, #248 @ pass key schedule |
| 1125 | bl _bsaes_key_convert |
| 1126 | add r4, r3, #248 |
| 1127 | vldmia r4, {q6} |
| 1128 | vstmia r12, {q15} @ save last round key |
| 1129 | veor q7, q7, q6 @ fix up round 0 key |
| 1130 | vstmia r4, {q7} |
| 1131 | |
| 1132 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1133 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1134 | #endif |
| 1135 | |
| 1136 | vld1.8 {q15}, [r8] @ load IV |
| 1137 | b .Lcbc_dec_loop |
| 1138 | |
| 1139 | .align 4 |
| 1140 | .Lcbc_dec_loop: |
| 1141 | subs r2, r2, #0x8 |
| 1142 | bmi .Lcbc_dec_loop_finish |
| 1143 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1144 | vld1.8 {q0,q1}, [r0]! @ load input |
| 1145 | vld1.8 {q2,q3}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1146 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1147 | mov r4, sp @ pass the key |
| 1148 | #else |
| 1149 | add r4, r3, #248 |
| 1150 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1151 | vld1.8 {q4,q5}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1152 | mov r5, r10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1153 | vld1.8 {q6,q7}, [r0] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1154 | sub r0, r0, #0x60 |
| 1155 | vstmia r9, {q15} @ put aside IV |
| 1156 | |
| 1157 | bl _bsaes_decrypt8 |
| 1158 | |
| 1159 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1160 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1161 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1162 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1163 | veor q1, q1, q8 |
| 1164 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1165 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1166 | veor q4, q4, q10 |
| 1167 | veor q2, q2, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1168 | vld1.8 {q14,q15}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1169 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1170 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1171 | veor q3, q3, q13 |
| 1172 | vst1.8 {q6}, [r1]! |
| 1173 | veor q5, q5, q14 |
| 1174 | vst1.8 {q4}, [r1]! |
| 1175 | vst1.8 {q2}, [r1]! |
| 1176 | vst1.8 {q7}, [r1]! |
| 1177 | vst1.8 {q3}, [r1]! |
| 1178 | vst1.8 {q5}, [r1]! |
| 1179 | |
| 1180 | b .Lcbc_dec_loop |
| 1181 | |
| 1182 | .Lcbc_dec_loop_finish: |
| 1183 | adds r2, r2, #8 |
| 1184 | beq .Lcbc_dec_done |
| 1185 | |
| 1186 | vld1.8 {q0}, [r0]! @ load input |
| 1187 | cmp r2, #2 |
| 1188 | blo .Lcbc_dec_one |
| 1189 | vld1.8 {q1}, [r0]! |
| 1190 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1191 | mov r4, sp @ pass the key |
| 1192 | #else |
| 1193 | add r4, r3, #248 |
| 1194 | #endif |
| 1195 | mov r5, r10 |
| 1196 | vstmia r9, {q15} @ put aside IV |
| 1197 | beq .Lcbc_dec_two |
| 1198 | vld1.8 {q2}, [r0]! |
| 1199 | cmp r2, #4 |
| 1200 | blo .Lcbc_dec_three |
| 1201 | vld1.8 {q3}, [r0]! |
| 1202 | beq .Lcbc_dec_four |
| 1203 | vld1.8 {q4}, [r0]! |
| 1204 | cmp r2, #6 |
| 1205 | blo .Lcbc_dec_five |
| 1206 | vld1.8 {q5}, [r0]! |
| 1207 | beq .Lcbc_dec_six |
| 1208 | vld1.8 {q6}, [r0]! |
| 1209 | sub r0, r0, #0x70 |
| 1210 | |
| 1211 | bl _bsaes_decrypt8 |
| 1212 | |
| 1213 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1214 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1215 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1216 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1217 | veor q1, q1, q8 |
| 1218 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1219 | vld1.8 {q12,q13}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1220 | veor q4, q4, q10 |
| 1221 | veor q2, q2, q11 |
| 1222 | vld1.8 {q15}, [r0]! |
| 1223 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1224 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1225 | veor q3, q3, q13 |
| 1226 | vst1.8 {q6}, [r1]! |
| 1227 | vst1.8 {q4}, [r1]! |
| 1228 | vst1.8 {q2}, [r1]! |
| 1229 | vst1.8 {q7}, [r1]! |
| 1230 | vst1.8 {q3}, [r1]! |
| 1231 | b .Lcbc_dec_done |
| 1232 | .align 4 |
| 1233 | .Lcbc_dec_six: |
| 1234 | sub r0, r0, #0x60 |
| 1235 | bl _bsaes_decrypt8 |
| 1236 | vldmia r9,{q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1237 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1238 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1239 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1240 | veor q1, q1, q8 |
| 1241 | veor q6, q6, q9 |
| 1242 | vld1.8 {q12}, [r0]! |
| 1243 | veor q4, q4, q10 |
| 1244 | veor q2, q2, q11 |
| 1245 | vld1.8 {q15}, [r0]! |
| 1246 | veor q7, q7, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1247 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1248 | vst1.8 {q6}, [r1]! |
| 1249 | vst1.8 {q4}, [r1]! |
| 1250 | vst1.8 {q2}, [r1]! |
| 1251 | vst1.8 {q7}, [r1]! |
| 1252 | b .Lcbc_dec_done |
| 1253 | .align 4 |
| 1254 | .Lcbc_dec_five: |
| 1255 | sub r0, r0, #0x50 |
| 1256 | bl _bsaes_decrypt8 |
| 1257 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1258 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1259 | veor q0, q0, q14 @ ^= IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1260 | vld1.8 {q10,q11}, [r0]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1261 | veor q1, q1, q8 |
| 1262 | veor q6, q6, q9 |
| 1263 | vld1.8 {q15}, [r0]! |
| 1264 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1265 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1266 | veor q2, q2, q11 |
| 1267 | vst1.8 {q6}, [r1]! |
| 1268 | vst1.8 {q4}, [r1]! |
| 1269 | vst1.8 {q2}, [r1]! |
| 1270 | b .Lcbc_dec_done |
| 1271 | .align 4 |
| 1272 | .Lcbc_dec_four: |
| 1273 | sub r0, r0, #0x40 |
| 1274 | bl _bsaes_decrypt8 |
| 1275 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1276 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1277 | veor q0, q0, q14 @ ^= IV |
| 1278 | vld1.8 {q10}, [r0]! |
| 1279 | veor q1, q1, q8 |
| 1280 | veor q6, q6, q9 |
| 1281 | vld1.8 {q15}, [r0]! |
| 1282 | veor q4, q4, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1283 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1284 | vst1.8 {q6}, [r1]! |
| 1285 | vst1.8 {q4}, [r1]! |
| 1286 | b .Lcbc_dec_done |
| 1287 | .align 4 |
| 1288 | .Lcbc_dec_three: |
| 1289 | sub r0, r0, #0x30 |
| 1290 | bl _bsaes_decrypt8 |
| 1291 | vldmia r9, {q14} @ reload IV |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1292 | vld1.8 {q8,q9}, [r0]! @ reload input |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1293 | veor q0, q0, q14 @ ^= IV |
| 1294 | vld1.8 {q15}, [r0]! |
| 1295 | veor q1, q1, q8 |
| 1296 | veor q6, q6, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1297 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1298 | vst1.8 {q6}, [r1]! |
| 1299 | b .Lcbc_dec_done |
| 1300 | .align 4 |
| 1301 | .Lcbc_dec_two: |
| 1302 | sub r0, r0, #0x20 |
| 1303 | bl _bsaes_decrypt8 |
| 1304 | vldmia r9, {q14} @ reload IV |
| 1305 | vld1.8 {q8}, [r0]! @ reload input |
| 1306 | veor q0, q0, q14 @ ^= IV |
| 1307 | vld1.8 {q15}, [r0]! @ reload input |
| 1308 | veor q1, q1, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1309 | vst1.8 {q0,q1}, [r1]! @ write output |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1310 | b .Lcbc_dec_done |
| 1311 | .align 4 |
| 1312 | .Lcbc_dec_one: |
| 1313 | sub r0, r0, #0x10 |
| 1314 | mov r10, r1 @ save original out pointer |
| 1315 | mov r1, r9 @ use the iv scratch space as out buffer |
| 1316 | mov r2, r3 |
| 1317 | vmov q4,q15 @ just in case ensure that IV |
| 1318 | vmov q5,q0 @ and input are preserved |
| 1319 | bl AES_decrypt |
Robert Sloan | 6f79a50 | 2017-04-03 09:16:40 -0700 | [diff] [blame] | 1320 | vld1.8 {q0}, [r9] @ load result |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1321 | veor q0, q0, q4 @ ^= IV |
| 1322 | vmov q15, q5 @ q5 holds input |
| 1323 | vst1.8 {q0}, [r10] @ write output |
| 1324 | |
| 1325 | .Lcbc_dec_done: |
| 1326 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1327 | vmov.i32 q0, #0 |
| 1328 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1329 | .Lcbc_dec_bzero:@ wipe key schedule [if any] |
| 1330 | vstmia sp!, {q0,q1} |
| 1331 | cmp sp, r9 |
| 1332 | bne .Lcbc_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1333 | #endif |
| 1334 | |
| 1335 | mov sp, r9 |
| 1336 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1337 | vst1.8 {q15}, [r8] @ return IV |
| 1338 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1339 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1340 | .size bsaes_cbc_encrypt,.-bsaes_cbc_encrypt |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1341 | |
| 1342 | .globl bsaes_ctr32_encrypt_blocks |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1343 | .hidden bsaes_ctr32_encrypt_blocks |
| 1344 | .type bsaes_ctr32_encrypt_blocks,%function |
| 1345 | .align 5 |
| 1346 | bsaes_ctr32_encrypt_blocks: |
| 1347 | cmp r2, #8 @ use plain AES for |
| 1348 | blo .Lctr_enc_short @ small sizes |
| 1349 | |
| 1350 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1351 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1352 | VFP_ABI_PUSH |
| 1353 | ldr r8, [ip] @ ctr is 1st arg on the stack |
| 1354 | sub sp, sp, #0x10 @ scratch space to carry over the ctr |
| 1355 | mov r9, sp @ save sp |
| 1356 | |
| 1357 | ldr r10, [r3, #240] @ get # of rounds |
| 1358 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1359 | @ allocate the key schedule on the stack |
| 1360 | sub r12, sp, r10, lsl#7 @ 128 bytes per inner round key |
| 1361 | add r12, #96 @ size of bit-sliced key schedule |
| 1362 | |
| 1363 | @ populate the key schedule |
| 1364 | mov r4, r3 @ pass key |
| 1365 | mov r5, r10 @ pass # of rounds |
| 1366 | mov sp, r12 @ sp is sp |
| 1367 | bl _bsaes_key_convert |
| 1368 | veor q7,q7,q15 @ fix up last round key |
| 1369 | vstmia r12, {q7} @ save last round key |
| 1370 | |
| 1371 | vld1.8 {q0}, [r8] @ load counter |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1372 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 1373 | mov r8, #:lower16:(.LREVM0SR-.LM0) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1374 | add r8, r6, r8 |
| 1375 | #else |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1376 | add r8, r6, #.LREVM0SR-.LM0 @ borrow r8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1377 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1378 | vldmia sp, {q4} @ load round0 key |
| 1379 | #else |
| 1380 | ldr r12, [r3, #244] |
| 1381 | eors r12, #1 |
| 1382 | beq 0f |
| 1383 | |
| 1384 | @ populate the key schedule |
| 1385 | str r12, [r3, #244] |
| 1386 | mov r4, r3 @ pass key |
| 1387 | mov r5, r10 @ pass # of rounds |
| 1388 | add r12, r3, #248 @ pass key schedule |
| 1389 | bl _bsaes_key_convert |
| 1390 | veor q7,q7,q15 @ fix up last round key |
| 1391 | vstmia r12, {q7} @ save last round key |
| 1392 | |
| 1393 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1394 | add r12, r3, #248 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1395 | vld1.8 {q0}, [r8] @ load counter |
| 1396 | adrl r8, .LREVM0SR @ borrow r8 |
| 1397 | vldmia r12, {q4} @ load round0 key |
| 1398 | sub sp, #0x10 @ place for adjusted round0 key |
| 1399 | #endif |
| 1400 | |
| 1401 | vmov.i32 q8,#1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1402 | veor q9,q9,q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1403 | vrev32.8 q0,q0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1404 | vext.8 q8,q9,q8,#4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1405 | vrev32.8 q4,q4 |
| 1406 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
| 1407 | vstmia sp, {q4} @ save adjusted round0 key |
| 1408 | b .Lctr_enc_loop |
| 1409 | |
| 1410 | .align 4 |
| 1411 | .Lctr_enc_loop: |
| 1412 | vadd.u32 q10, q8, q9 @ compose 3<<96 |
| 1413 | vadd.u32 q1, q0, q8 @ +1 |
| 1414 | vadd.u32 q2, q0, q9 @ +2 |
| 1415 | vadd.u32 q3, q0, q10 @ +3 |
| 1416 | vadd.u32 q4, q1, q10 |
| 1417 | vadd.u32 q5, q2, q10 |
| 1418 | vadd.u32 q6, q3, q10 |
| 1419 | vadd.u32 q7, q4, q10 |
| 1420 | vadd.u32 q10, q5, q10 @ next counter |
| 1421 | |
| 1422 | @ Borrow prologue from _bsaes_encrypt8 to use the opportunity |
| 1423 | @ to flip byte order in 32-bit counter |
| 1424 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1425 | vldmia sp, {q9} @ load round0 key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1426 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1427 | add r4, sp, #0x10 @ pass next round key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1428 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1429 | add r4, r3, #264 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1430 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1431 | vldmia r8, {q8} @ .LREVM0SR |
| 1432 | mov r5, r10 @ pass rounds |
| 1433 | vstmia r9, {q10} @ save next counter |
| 1434 | #ifdef __APPLE__ |
Adam Langley | f4e4272 | 2015-06-04 17:45:09 -0700 | [diff] [blame] | 1435 | mov r6, #:lower16:(.LREVM0SR-.LSR) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1436 | sub r6, r8, r6 |
| 1437 | #else |
| 1438 | sub r6, r8, #.LREVM0SR-.LSR @ pass constants |
| 1439 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1440 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1441 | bl _bsaes_encrypt8_alt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1442 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1443 | subs r2, r2, #8 |
| 1444 | blo .Lctr_enc_loop_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1445 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1446 | vld1.8 {q8,q9}, [r0]! @ load input |
| 1447 | vld1.8 {q10,q11}, [r0]! |
| 1448 | veor q0, q8 |
| 1449 | veor q1, q9 |
| 1450 | vld1.8 {q12,q13}, [r0]! |
| 1451 | veor q4, q10 |
| 1452 | veor q6, q11 |
| 1453 | vld1.8 {q14,q15}, [r0]! |
| 1454 | veor q3, q12 |
| 1455 | vst1.8 {q0,q1}, [r1]! @ write output |
| 1456 | veor q7, q13 |
| 1457 | veor q2, q14 |
| 1458 | vst1.8 {q4}, [r1]! |
| 1459 | veor q5, q15 |
| 1460 | vst1.8 {q6}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1461 | vmov.i32 q8, #1 @ compose 1<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1462 | vst1.8 {q3}, [r1]! |
| 1463 | veor q9, q9, q9 |
| 1464 | vst1.8 {q7}, [r1]! |
| 1465 | vext.8 q8, q9, q8, #4 |
| 1466 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1467 | vadd.u32 q9,q8,q8 @ compose 2<<96 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1468 | vst1.8 {q5}, [r1]! |
| 1469 | vldmia r9, {q0} @ load counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1470 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1471 | bne .Lctr_enc_loop |
| 1472 | b .Lctr_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1473 | |
| 1474 | .align 4 |
| 1475 | .Lctr_enc_loop_done: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1476 | add r2, r2, #8 |
| 1477 | vld1.8 {q8}, [r0]! @ load input |
| 1478 | veor q0, q8 |
| 1479 | vst1.8 {q0}, [r1]! @ write output |
| 1480 | cmp r2, #2 |
| 1481 | blo .Lctr_enc_done |
| 1482 | vld1.8 {q9}, [r0]! |
| 1483 | veor q1, q9 |
| 1484 | vst1.8 {q1}, [r1]! |
| 1485 | beq .Lctr_enc_done |
| 1486 | vld1.8 {q10}, [r0]! |
| 1487 | veor q4, q10 |
| 1488 | vst1.8 {q4}, [r1]! |
| 1489 | cmp r2, #4 |
| 1490 | blo .Lctr_enc_done |
| 1491 | vld1.8 {q11}, [r0]! |
| 1492 | veor q6, q11 |
| 1493 | vst1.8 {q6}, [r1]! |
| 1494 | beq .Lctr_enc_done |
| 1495 | vld1.8 {q12}, [r0]! |
| 1496 | veor q3, q12 |
| 1497 | vst1.8 {q3}, [r1]! |
| 1498 | cmp r2, #6 |
| 1499 | blo .Lctr_enc_done |
| 1500 | vld1.8 {q13}, [r0]! |
| 1501 | veor q7, q13 |
| 1502 | vst1.8 {q7}, [r1]! |
| 1503 | beq .Lctr_enc_done |
| 1504 | vld1.8 {q14}, [r0] |
| 1505 | veor q2, q14 |
| 1506 | vst1.8 {q2}, [r1]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1507 | |
| 1508 | .Lctr_enc_done: |
| 1509 | vmov.i32 q0, #0 |
| 1510 | vmov.i32 q1, #0 |
| 1511 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1512 | .Lctr_enc_bzero:@ wipe key schedule [if any] |
| 1513 | vstmia sp!, {q0,q1} |
| 1514 | cmp sp, r9 |
| 1515 | bne .Lctr_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1516 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1517 | vstmia sp, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1518 | #endif |
| 1519 | |
| 1520 | mov sp, r9 |
| 1521 | add sp, #0x10 @ add sp,r9,#0x10 is no good for thumb |
| 1522 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1523 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1524 | |
| 1525 | .align 4 |
| 1526 | .Lctr_enc_short: |
| 1527 | ldr ip, [sp] @ ctr pointer is passed on stack |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1528 | stmdb sp!, {r4,r5,r6,r7,r8, lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1529 | |
| 1530 | mov r4, r0 @ copy arguments |
| 1531 | mov r5, r1 |
| 1532 | mov r6, r2 |
| 1533 | mov r7, r3 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1534 | ldr r8, [ip, #12] @ load counter .LSW |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1535 | vld1.8 {q1}, [ip] @ load whole counter value |
| 1536 | #ifdef __ARMEL__ |
| 1537 | rev r8, r8 |
| 1538 | #endif |
| 1539 | sub sp, sp, #0x10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1540 | vst1.8 {q1}, [sp] @ copy counter value |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1541 | sub sp, sp, #0x10 |
| 1542 | |
| 1543 | .Lctr_enc_short_loop: |
| 1544 | add r0, sp, #0x10 @ input counter value |
| 1545 | mov r1, sp @ output on the stack |
| 1546 | mov r2, r7 @ key |
| 1547 | |
| 1548 | bl AES_encrypt |
| 1549 | |
| 1550 | vld1.8 {q0}, [r4]! @ load input |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1551 | vld1.8 {q1}, [sp] @ load encrypted counter |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1552 | add r8, r8, #1 |
| 1553 | #ifdef __ARMEL__ |
| 1554 | rev r0, r8 |
| 1555 | str r0, [sp, #0x1c] @ next counter value |
| 1556 | #else |
| 1557 | str r8, [sp, #0x1c] @ next counter value |
| 1558 | #endif |
| 1559 | veor q0,q0,q1 |
| 1560 | vst1.8 {q0}, [r5]! @ store output |
| 1561 | subs r6, r6, #1 |
| 1562 | bne .Lctr_enc_short_loop |
| 1563 | |
| 1564 | vmov.i32 q0, #0 |
| 1565 | vmov.i32 q1, #0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1566 | vstmia sp!, {q0,q1} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1567 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1568 | ldmia sp!, {r4,r5,r6,r7,r8, pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1569 | .size bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks |
| 1570 | .globl bsaes_xts_encrypt |
| 1571 | .hidden bsaes_xts_encrypt |
| 1572 | .type bsaes_xts_encrypt,%function |
| 1573 | .align 4 |
| 1574 | bsaes_xts_encrypt: |
| 1575 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1576 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1577 | VFP_ABI_PUSH |
| 1578 | mov r6, sp @ future r3 |
| 1579 | |
| 1580 | mov r7, r0 |
| 1581 | mov r8, r1 |
| 1582 | mov r9, r2 |
| 1583 | mov r10, r3 |
| 1584 | |
| 1585 | sub r0, sp, #0x10 @ 0x10 |
| 1586 | bic r0, #0xf @ align at 16 bytes |
| 1587 | mov sp, r0 |
| 1588 | |
| 1589 | #ifdef XTS_CHAIN_TWEAK |
| 1590 | ldr r0, [ip] @ pointer to input tweak |
| 1591 | #else |
| 1592 | @ generate initial tweak |
| 1593 | ldr r0, [ip, #4] @ iv[] |
| 1594 | mov r1, sp |
| 1595 | ldr r2, [ip, #0] @ key2 |
| 1596 | bl AES_encrypt |
| 1597 | mov r0,sp @ pointer to initial tweak |
| 1598 | #endif |
| 1599 | |
| 1600 | ldr r1, [r10, #240] @ get # of rounds |
| 1601 | mov r3, r6 |
| 1602 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 1603 | @ allocate the key schedule on the stack |
| 1604 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 1605 | @ add r12, #96 @ size of bit-sliced key schedule |
| 1606 | sub r12, #48 @ place for tweak[9] |
| 1607 | |
| 1608 | @ populate the key schedule |
| 1609 | mov r4, r10 @ pass key |
| 1610 | mov r5, r1 @ pass # of rounds |
| 1611 | mov sp, r12 |
| 1612 | add r12, #0x90 @ pass key schedule |
| 1613 | bl _bsaes_key_convert |
| 1614 | veor q7, q7, q15 @ fix up last round key |
| 1615 | vstmia r12, {q7} @ save last round key |
| 1616 | #else |
| 1617 | ldr r12, [r10, #244] |
| 1618 | eors r12, #1 |
| 1619 | beq 0f |
| 1620 | |
| 1621 | str r12, [r10, #244] |
| 1622 | mov r4, r10 @ pass key |
| 1623 | mov r5, r1 @ pass # of rounds |
| 1624 | add r12, r10, #248 @ pass key schedule |
| 1625 | bl _bsaes_key_convert |
| 1626 | veor q7, q7, q15 @ fix up last round key |
| 1627 | vstmia r12, {q7} |
| 1628 | |
| 1629 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1630 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1631 | #endif |
| 1632 | |
| 1633 | vld1.8 {q8}, [r0] @ initial tweak |
| 1634 | adr r2, .Lxts_magic |
| 1635 | |
| 1636 | subs r9, #0x80 |
| 1637 | blo .Lxts_enc_short |
| 1638 | b .Lxts_enc_loop |
| 1639 | |
| 1640 | .align 4 |
| 1641 | .Lxts_enc_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1642 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1643 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1644 | mov r0, sp |
| 1645 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1646 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1647 | vst1.64 {q8}, [r0,:128]! |
| 1648 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1649 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1650 | veor q9, q9, q6 |
| 1651 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1652 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1653 | vst1.64 {q9}, [r0,:128]! |
| 1654 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1655 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1656 | veor q10, q10, q7 |
| 1657 | vand q6, q6, q5 |
| 1658 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1659 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1660 | vst1.64 {q10}, [r0,:128]! |
| 1661 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1662 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1663 | veor q11, q11, q6 |
| 1664 | vand q7, q7, q5 |
| 1665 | vld1.8 {q1}, [r7]! |
| 1666 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1667 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1668 | vst1.64 {q11}, [r0,:128]! |
| 1669 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1670 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1671 | veor q12, q12, q7 |
| 1672 | vand q6, q6, q5 |
| 1673 | vld1.8 {q2}, [r7]! |
| 1674 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1675 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1676 | vst1.64 {q12}, [r0,:128]! |
| 1677 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1678 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1679 | veor q13, q13, q6 |
| 1680 | vand q7, q7, q5 |
| 1681 | vld1.8 {q3}, [r7]! |
| 1682 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1683 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1684 | vst1.64 {q13}, [r0,:128]! |
| 1685 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1686 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1687 | veor q14, q14, q7 |
| 1688 | vand q6, q6, q5 |
| 1689 | vld1.8 {q4}, [r7]! |
| 1690 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1691 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1692 | vst1.64 {q14}, [r0,:128]! |
| 1693 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1694 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1695 | veor q15, q15, q6 |
| 1696 | vand q7, q7, q5 |
| 1697 | vld1.8 {q5}, [r7]! |
| 1698 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1699 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1700 | vst1.64 {q15}, [r0,:128]! |
| 1701 | vswp d15,d14 |
| 1702 | veor q8, q8, q7 |
| 1703 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1704 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1705 | vld1.8 {q6,q7}, [r7]! |
| 1706 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1707 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1708 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1709 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1710 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1711 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1712 | veor q6, q6, q14 |
| 1713 | mov r5, r1 @ pass rounds |
| 1714 | veor q7, q7, q15 |
| 1715 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1716 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1717 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1718 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1719 | vld1.64 {q8,q9}, [r0,:128]! |
| 1720 | vld1.64 {q10,q11}, [r0,:128]! |
| 1721 | veor q0, q0, q8 |
| 1722 | vld1.64 {q12,q13}, [r0,:128]! |
| 1723 | veor q1, q1, q9 |
| 1724 | veor q8, q4, q10 |
| 1725 | vst1.8 {q0,q1}, [r8]! |
| 1726 | veor q9, q6, q11 |
| 1727 | vld1.64 {q14,q15}, [r0,:128]! |
| 1728 | veor q10, q3, q12 |
| 1729 | vst1.8 {q8,q9}, [r8]! |
| 1730 | veor q11, q7, q13 |
| 1731 | veor q12, q2, q14 |
| 1732 | vst1.8 {q10,q11}, [r8]! |
| 1733 | veor q13, q5, q15 |
| 1734 | vst1.8 {q12,q13}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1735 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1736 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1737 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1738 | subs r9, #0x80 |
| 1739 | bpl .Lxts_enc_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1740 | |
| 1741 | .Lxts_enc_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1742 | adds r9, #0x70 |
| 1743 | bmi .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1744 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1745 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1746 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1747 | mov r0, sp |
| 1748 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1749 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1750 | vst1.64 {q8}, [r0,:128]! |
| 1751 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1752 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1753 | veor q9, q9, q7 |
| 1754 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1755 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1756 | vst1.64 {q9}, [r0,:128]! |
| 1757 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1758 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1759 | veor q10, q10, q6 |
| 1760 | vand q7, q7, q5 |
| 1761 | vld1.8 {q0}, [r7]! |
| 1762 | subs r9, #0x10 |
| 1763 | bmi .Lxts_enc_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1764 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1765 | vst1.64 {q10}, [r0,:128]! |
| 1766 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1767 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1768 | veor q11, q11, q7 |
| 1769 | vand q6, q6, q5 |
| 1770 | vld1.8 {q1}, [r7]! |
| 1771 | subs r9, #0x10 |
| 1772 | bmi .Lxts_enc_2 |
| 1773 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1774 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1775 | vst1.64 {q11}, [r0,:128]! |
| 1776 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1777 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1778 | veor q12, q12, q6 |
| 1779 | vand q7, q7, q5 |
| 1780 | vld1.8 {q2}, [r7]! |
| 1781 | subs r9, #0x10 |
| 1782 | bmi .Lxts_enc_3 |
| 1783 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1784 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1785 | vst1.64 {q12}, [r0,:128]! |
| 1786 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1787 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1788 | veor q13, q13, q7 |
| 1789 | vand q6, q6, q5 |
| 1790 | vld1.8 {q3}, [r7]! |
| 1791 | subs r9, #0x10 |
| 1792 | bmi .Lxts_enc_4 |
| 1793 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1794 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1795 | vst1.64 {q13}, [r0,:128]! |
| 1796 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1797 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1798 | veor q14, q14, q6 |
| 1799 | vand q7, q7, q5 |
| 1800 | vld1.8 {q4}, [r7]! |
| 1801 | subs r9, #0x10 |
| 1802 | bmi .Lxts_enc_5 |
| 1803 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1804 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1805 | vst1.64 {q14}, [r0,:128]! |
| 1806 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1807 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1808 | veor q15, q15, q7 |
| 1809 | vand q6, q6, q5 |
| 1810 | vld1.8 {q5}, [r7]! |
| 1811 | subs r9, #0x10 |
| 1812 | bmi .Lxts_enc_6 |
| 1813 | veor q4, q4, q12 |
| 1814 | sub r9, #0x10 |
| 1815 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1816 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1817 | vld1.8 {q6}, [r7]! |
| 1818 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1819 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1820 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1821 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1822 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1823 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1824 | veor q6, q6, q14 |
| 1825 | mov r5, r1 @ pass rounds |
| 1826 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1827 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1828 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1829 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1830 | vld1.64 {q8,q9}, [r0,:128]! |
| 1831 | vld1.64 {q10,q11}, [r0,:128]! |
| 1832 | veor q0, q0, q8 |
| 1833 | vld1.64 {q12,q13}, [r0,:128]! |
| 1834 | veor q1, q1, q9 |
| 1835 | veor q8, q4, q10 |
| 1836 | vst1.8 {q0,q1}, [r8]! |
| 1837 | veor q9, q6, q11 |
| 1838 | vld1.64 {q14}, [r0,:128]! |
| 1839 | veor q10, q3, q12 |
| 1840 | vst1.8 {q8,q9}, [r8]! |
| 1841 | veor q11, q7, q13 |
| 1842 | veor q12, q2, q14 |
| 1843 | vst1.8 {q10,q11}, [r8]! |
| 1844 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1845 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1846 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1847 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1848 | .align 4 |
| 1849 | .Lxts_enc_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1850 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1851 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1852 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1853 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1854 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1855 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1856 | veor q5, q5, q13 |
| 1857 | mov r5, r1 @ pass rounds |
| 1858 | mov r0, sp |
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 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1861 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1862 | vld1.64 {q8,q9}, [r0,:128]! |
| 1863 | vld1.64 {q10,q11}, [r0,:128]! |
| 1864 | veor q0, q0, q8 |
| 1865 | vld1.64 {q12,q13}, [r0,:128]! |
| 1866 | veor q1, q1, q9 |
| 1867 | veor q8, q4, q10 |
| 1868 | vst1.8 {q0,q1}, [r8]! |
| 1869 | veor q9, q6, q11 |
| 1870 | veor q10, q3, q12 |
| 1871 | vst1.8 {q8,q9}, [r8]! |
| 1872 | veor q11, q7, q13 |
| 1873 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1874 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1875 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1876 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1877 | |
| 1878 | @ put this in range for both ARM and Thumb mode adr instructions |
| 1879 | .align 5 |
| 1880 | .Lxts_magic: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1881 | .quad 1, 0x87 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1882 | |
| 1883 | .align 5 |
| 1884 | .Lxts_enc_5: |
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 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1914 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1915 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1916 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1917 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1918 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1919 | veor q3, q3, q11 |
| 1920 | mov r5, r1 @ pass rounds |
| 1921 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1922 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1923 | bl _bsaes_encrypt8 |
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 | vld1.64 {q8,q9}, [r0,:128]! |
| 1926 | vld1.64 {q10,q11}, [r0,:128]! |
| 1927 | veor q0, q0, q8 |
| 1928 | veor q1, q1, q9 |
| 1929 | veor q8, q4, q10 |
| 1930 | vst1.8 {q0,q1}, [r8]! |
| 1931 | veor q9, q6, q11 |
| 1932 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1933 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1934 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1935 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1936 | .align 4 |
| 1937 | .Lxts_enc_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1938 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1939 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1940 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1941 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1942 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1943 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1944 | veor q2, q2, q10 |
| 1945 | mov r5, r1 @ pass rounds |
| 1946 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1947 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1948 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1949 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1950 | vld1.64 {q8,q9}, [r0,:128]! |
| 1951 | vld1.64 {q10}, [r0,:128]! |
| 1952 | veor q0, q0, q8 |
| 1953 | veor q1, q1, q9 |
| 1954 | veor q8, q4, q10 |
| 1955 | vst1.8 {q0,q1}, [r8]! |
| 1956 | vst1.8 {q8}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1957 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1958 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1959 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1960 | .align 4 |
| 1961 | .Lxts_enc_2: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1962 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1963 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1964 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1965 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1966 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1967 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1968 | veor q1, q1, q9 |
| 1969 | mov r5, r1 @ pass rounds |
| 1970 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1971 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1972 | bl _bsaes_encrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1973 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1974 | vld1.64 {q8,q9}, [r0,:128]! |
| 1975 | veor q0, q0, q8 |
| 1976 | veor q1, q1, q9 |
| 1977 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1978 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1979 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 1980 | b .Lxts_enc_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1981 | .align 4 |
| 1982 | .Lxts_enc_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1983 | mov r0, sp |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 1984 | veor q0, q0, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1985 | mov r1, sp |
| 1986 | vst1.8 {q0}, [sp,:128] |
| 1987 | mov r2, r10 |
| 1988 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1989 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1990 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1991 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1992 | vld1.8 {q0}, [sp,:128] |
| 1993 | veor q0, q0, q8 |
| 1994 | vst1.8 {q0}, [r8]! |
| 1995 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1996 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1997 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1998 | |
| 1999 | .Lxts_enc_done: |
| 2000 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2001 | adds r9, #0x10 |
| 2002 | beq .Lxts_enc_ret |
| 2003 | sub r6, r8, #0x10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2004 | |
| 2005 | .Lxts_enc_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2006 | ldrb r0, [r7], #1 |
| 2007 | ldrb r1, [r8, #-0x10] |
| 2008 | strb r0, [r8, #-0x10] |
| 2009 | strb r1, [r8], #1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2010 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2011 | subs r9, #1 |
| 2012 | bhi .Lxts_enc_steal |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2013 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2014 | vld1.8 {q0}, [r6] |
| 2015 | mov r0, sp |
| 2016 | veor q0, q0, q8 |
| 2017 | mov r1, sp |
| 2018 | vst1.8 {q0}, [sp,:128] |
| 2019 | mov r2, r10 |
| 2020 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2021 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2022 | bl AES_encrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2023 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2024 | vld1.8 {q0}, [sp,:128] |
| 2025 | veor q0, q0, q8 |
| 2026 | vst1.8 {q0}, [r6] |
| 2027 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2028 | #endif |
| 2029 | |
| 2030 | .Lxts_enc_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2031 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2032 | vmov.i32 q0, #0 |
| 2033 | vmov.i32 q1, #0 |
| 2034 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2035 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2036 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2037 | .Lxts_enc_bzero:@ wipe key schedule [if any] |
| 2038 | vstmia sp!, {q0,q1} |
| 2039 | cmp sp, r0 |
| 2040 | bne .Lxts_enc_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2041 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2042 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2043 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2044 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2045 | #endif |
| 2046 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2047 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2048 | |
| 2049 | .size bsaes_xts_encrypt,.-bsaes_xts_encrypt |
| 2050 | |
| 2051 | .globl bsaes_xts_decrypt |
| 2052 | .hidden bsaes_xts_decrypt |
| 2053 | .type bsaes_xts_decrypt,%function |
| 2054 | .align 4 |
| 2055 | bsaes_xts_decrypt: |
| 2056 | mov ip, sp |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2057 | stmdb sp!, {r4,r5,r6,r7,r8,r9,r10, lr} @ 0x20 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2058 | VFP_ABI_PUSH |
| 2059 | mov r6, sp @ future r3 |
| 2060 | |
| 2061 | mov r7, r0 |
| 2062 | mov r8, r1 |
| 2063 | mov r9, r2 |
| 2064 | mov r10, r3 |
| 2065 | |
| 2066 | sub r0, sp, #0x10 @ 0x10 |
| 2067 | bic r0, #0xf @ align at 16 bytes |
| 2068 | mov sp, r0 |
| 2069 | |
| 2070 | #ifdef XTS_CHAIN_TWEAK |
| 2071 | ldr r0, [ip] @ pointer to input tweak |
| 2072 | #else |
| 2073 | @ generate initial tweak |
| 2074 | ldr r0, [ip, #4] @ iv[] |
| 2075 | mov r1, sp |
| 2076 | ldr r2, [ip, #0] @ key2 |
| 2077 | bl AES_encrypt |
| 2078 | mov r0, sp @ pointer to initial tweak |
| 2079 | #endif |
| 2080 | |
| 2081 | ldr r1, [r10, #240] @ get # of rounds |
| 2082 | mov r3, r6 |
| 2083 | #ifndef BSAES_ASM_EXTENDED_KEY |
| 2084 | @ allocate the key schedule on the stack |
| 2085 | sub r12, sp, r1, lsl#7 @ 128 bytes per inner round key |
| 2086 | @ add r12, #96 @ size of bit-sliced key schedule |
| 2087 | sub r12, #48 @ place for tweak[9] |
| 2088 | |
| 2089 | @ populate the key schedule |
| 2090 | mov r4, r10 @ pass key |
| 2091 | mov r5, r1 @ pass # of rounds |
| 2092 | mov sp, r12 |
| 2093 | add r12, #0x90 @ pass key schedule |
| 2094 | bl _bsaes_key_convert |
| 2095 | add r4, sp, #0x90 |
| 2096 | vldmia r4, {q6} |
| 2097 | vstmia r12, {q15} @ save last round key |
| 2098 | veor q7, q7, q6 @ fix up round 0 key |
| 2099 | vstmia r4, {q7} |
| 2100 | #else |
| 2101 | ldr r12, [r10, #244] |
| 2102 | eors r12, #1 |
| 2103 | beq 0f |
| 2104 | |
| 2105 | str r12, [r10, #244] |
| 2106 | mov r4, r10 @ pass key |
| 2107 | mov r5, r1 @ pass # of rounds |
| 2108 | add r12, r10, #248 @ pass key schedule |
| 2109 | bl _bsaes_key_convert |
| 2110 | add r4, r10, #248 |
| 2111 | vldmia r4, {q6} |
| 2112 | vstmia r12, {q15} @ save last round key |
| 2113 | veor q7, q7, q6 @ fix up round 0 key |
| 2114 | vstmia r4, {q7} |
| 2115 | |
| 2116 | .align 2 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2117 | sub sp, #0x90 @ place for tweak[9] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2118 | #endif |
| 2119 | vld1.8 {q8}, [r0] @ initial tweak |
| 2120 | adr r2, .Lxts_magic |
| 2121 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2122 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2123 | tst r9, #0xf @ if not multiple of 16 |
| 2124 | it ne @ Thumb2 thing, sanity check in ARM |
| 2125 | subne r9, #0x10 @ subtract another 16 bytes |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2126 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2127 | subs r9, #0x80 |
| 2128 | |
| 2129 | blo .Lxts_dec_short |
| 2130 | b .Lxts_dec_loop |
| 2131 | |
| 2132 | .align 4 |
| 2133 | .Lxts_dec_loop: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2134 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2135 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2136 | mov r0, sp |
| 2137 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2138 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2139 | vst1.64 {q8}, [r0,:128]! |
| 2140 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2141 | vshr.s64 q7, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2142 | veor q9, q9, q6 |
| 2143 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2144 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2145 | vst1.64 {q9}, [r0,:128]! |
| 2146 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2147 | vshr.s64 q6, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2148 | veor q10, q10, q7 |
| 2149 | vand q6, q6, q5 |
| 2150 | vld1.8 {q0}, [r7]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2151 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2152 | vst1.64 {q10}, [r0,:128]! |
| 2153 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2154 | vshr.s64 q7, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2155 | veor q11, q11, q6 |
| 2156 | vand q7, q7, q5 |
| 2157 | vld1.8 {q1}, [r7]! |
| 2158 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2159 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2160 | vst1.64 {q11}, [r0,:128]! |
| 2161 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2162 | vshr.s64 q6, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2163 | veor q12, q12, q7 |
| 2164 | vand q6, q6, q5 |
| 2165 | vld1.8 {q2}, [r7]! |
| 2166 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2167 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2168 | vst1.64 {q12}, [r0,:128]! |
| 2169 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2170 | vshr.s64 q7, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2171 | veor q13, q13, q6 |
| 2172 | vand q7, q7, q5 |
| 2173 | vld1.8 {q3}, [r7]! |
| 2174 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2175 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2176 | vst1.64 {q13}, [r0,:128]! |
| 2177 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2178 | vshr.s64 q6, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2179 | veor q14, q14, q7 |
| 2180 | vand q6, q6, q5 |
| 2181 | vld1.8 {q4}, [r7]! |
| 2182 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2183 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2184 | vst1.64 {q14}, [r0,:128]! |
| 2185 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2186 | vshr.s64 q7, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2187 | veor q15, q15, q6 |
| 2188 | vand q7, q7, q5 |
| 2189 | vld1.8 {q5}, [r7]! |
| 2190 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2191 | vadd.u64 q8, q15, q15 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2192 | vst1.64 {q15}, [r0,:128]! |
| 2193 | vswp d15,d14 |
| 2194 | veor q8, q8, q7 |
| 2195 | vst1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2196 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2197 | vld1.8 {q6,q7}, [r7]! |
| 2198 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2199 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2200 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2201 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2202 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2203 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2204 | veor q6, q6, q14 |
| 2205 | mov r5, r1 @ pass rounds |
| 2206 | veor q7, q7, q15 |
| 2207 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2208 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2209 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2210 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2211 | vld1.64 {q8,q9}, [r0,:128]! |
| 2212 | vld1.64 {q10,q11}, [r0,:128]! |
| 2213 | veor q0, q0, q8 |
| 2214 | vld1.64 {q12,q13}, [r0,:128]! |
| 2215 | veor q1, q1, q9 |
| 2216 | veor q8, q6, q10 |
| 2217 | vst1.8 {q0,q1}, [r8]! |
| 2218 | veor q9, q4, q11 |
| 2219 | vld1.64 {q14,q15}, [r0,:128]! |
| 2220 | veor q10, q2, q12 |
| 2221 | vst1.8 {q8,q9}, [r8]! |
| 2222 | veor q11, q7, q13 |
| 2223 | veor q12, q3, q14 |
| 2224 | vst1.8 {q10,q11}, [r8]! |
| 2225 | veor q13, q5, q15 |
| 2226 | vst1.8 {q12,q13}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2227 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2228 | vld1.64 {q8}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2229 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2230 | subs r9, #0x80 |
| 2231 | bpl .Lxts_dec_loop |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2232 | |
| 2233 | .Lxts_dec_short: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2234 | adds r9, #0x70 |
| 2235 | bmi .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2236 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2237 | vldmia r2, {q5} @ load XTS magic |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2238 | vshr.s64 q7, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2239 | mov r0, sp |
| 2240 | vand q7, q7, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2241 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2242 | vst1.64 {q8}, [r0,:128]! |
| 2243 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2244 | vshr.s64 q6, q9, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2245 | veor q9, q9, q7 |
| 2246 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2247 | vadd.u64 q10, q9, q9 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2248 | vst1.64 {q9}, [r0,:128]! |
| 2249 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2250 | vshr.s64 q7, q10, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2251 | veor q10, q10, q6 |
| 2252 | vand q7, q7, q5 |
| 2253 | vld1.8 {q0}, [r7]! |
| 2254 | subs r9, #0x10 |
| 2255 | bmi .Lxts_dec_1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2256 | vadd.u64 q11, q10, q10 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2257 | vst1.64 {q10}, [r0,:128]! |
| 2258 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2259 | vshr.s64 q6, q11, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2260 | veor q11, q11, q7 |
| 2261 | vand q6, q6, q5 |
| 2262 | vld1.8 {q1}, [r7]! |
| 2263 | subs r9, #0x10 |
| 2264 | bmi .Lxts_dec_2 |
| 2265 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2266 | vadd.u64 q12, q11, q11 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2267 | vst1.64 {q11}, [r0,:128]! |
| 2268 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2269 | vshr.s64 q7, q12, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2270 | veor q12, q12, q6 |
| 2271 | vand q7, q7, q5 |
| 2272 | vld1.8 {q2}, [r7]! |
| 2273 | subs r9, #0x10 |
| 2274 | bmi .Lxts_dec_3 |
| 2275 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2276 | vadd.u64 q13, q12, q12 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2277 | vst1.64 {q12}, [r0,:128]! |
| 2278 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2279 | vshr.s64 q6, q13, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2280 | veor q13, q13, q7 |
| 2281 | vand q6, q6, q5 |
| 2282 | vld1.8 {q3}, [r7]! |
| 2283 | subs r9, #0x10 |
| 2284 | bmi .Lxts_dec_4 |
| 2285 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2286 | vadd.u64 q14, q13, q13 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2287 | vst1.64 {q13}, [r0,:128]! |
| 2288 | vswp d13,d12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2289 | vshr.s64 q7, q14, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2290 | veor q14, q14, q6 |
| 2291 | vand q7, q7, q5 |
| 2292 | vld1.8 {q4}, [r7]! |
| 2293 | subs r9, #0x10 |
| 2294 | bmi .Lxts_dec_5 |
| 2295 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2296 | vadd.u64 q15, q14, q14 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2297 | vst1.64 {q14}, [r0,:128]! |
| 2298 | vswp d15,d14 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2299 | vshr.s64 q6, q15, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2300 | veor q15, q15, q7 |
| 2301 | vand q6, q6, q5 |
| 2302 | vld1.8 {q5}, [r7]! |
| 2303 | subs r9, #0x10 |
| 2304 | bmi .Lxts_dec_6 |
| 2305 | veor q4, q4, q12 |
| 2306 | sub r9, #0x10 |
| 2307 | vst1.64 {q15}, [r0,:128] @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2308 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2309 | vld1.8 {q6}, [r7]! |
| 2310 | veor q5, q5, q13 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2311 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2312 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2313 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2314 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2315 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2316 | veor q6, q6, q14 |
| 2317 | mov r5, r1 @ pass rounds |
| 2318 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2319 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2320 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2321 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2322 | vld1.64 {q8,q9}, [r0,:128]! |
| 2323 | vld1.64 {q10,q11}, [r0,:128]! |
| 2324 | veor q0, q0, q8 |
| 2325 | vld1.64 {q12,q13}, [r0,:128]! |
| 2326 | veor q1, q1, q9 |
| 2327 | veor q8, q6, q10 |
| 2328 | vst1.8 {q0,q1}, [r8]! |
| 2329 | veor q9, q4, q11 |
| 2330 | vld1.64 {q14}, [r0,:128]! |
| 2331 | veor q10, q2, q12 |
| 2332 | vst1.8 {q8,q9}, [r8]! |
| 2333 | veor q11, q7, q13 |
| 2334 | veor q12, q3, q14 |
| 2335 | vst1.8 {q10,q11}, [r8]! |
| 2336 | vst1.8 {q12}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2337 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2338 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2339 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2340 | .align 4 |
| 2341 | .Lxts_dec_6: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2342 | vst1.64 {q14}, [r0,:128] @ next round tweak |
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 | veor q4, q4, q12 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2345 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2346 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2347 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2348 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2349 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2350 | veor q5, q5, q13 |
| 2351 | mov r5, r1 @ pass rounds |
| 2352 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2353 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2354 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2355 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2356 | vld1.64 {q8,q9}, [r0,:128]! |
| 2357 | vld1.64 {q10,q11}, [r0,:128]! |
| 2358 | veor q0, q0, q8 |
| 2359 | vld1.64 {q12,q13}, [r0,:128]! |
| 2360 | veor q1, q1, q9 |
| 2361 | veor q8, q6, q10 |
| 2362 | vst1.8 {q0,q1}, [r8]! |
| 2363 | veor q9, q4, q11 |
| 2364 | veor q10, q2, q12 |
| 2365 | vst1.8 {q8,q9}, [r8]! |
| 2366 | veor q11, q7, q13 |
| 2367 | vst1.8 {q10,q11}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2368 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2369 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2370 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2371 | .align 4 |
| 2372 | .Lxts_dec_5: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2373 | veor q3, q3, q11 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2374 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2375 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2376 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2377 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2378 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2379 | veor q4, q4, q12 |
| 2380 | mov r5, r1 @ pass rounds |
| 2381 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2382 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2383 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2384 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2385 | vld1.64 {q8,q9}, [r0,:128]! |
| 2386 | vld1.64 {q10,q11}, [r0,:128]! |
| 2387 | veor q0, q0, q8 |
| 2388 | vld1.64 {q12}, [r0,:128]! |
| 2389 | veor q1, q1, q9 |
| 2390 | veor q8, q6, q10 |
| 2391 | vst1.8 {q0,q1}, [r8]! |
| 2392 | veor q9, q4, q11 |
| 2393 | veor q10, q2, q12 |
| 2394 | vst1.8 {q8,q9}, [r8]! |
| 2395 | vst1.8 {q10}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2396 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2397 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2398 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2399 | .align 4 |
| 2400 | .Lxts_dec_4: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2401 | veor q2, q2, q10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2402 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2403 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2404 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2405 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2406 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2407 | veor q3, q3, q11 |
| 2408 | mov r5, r1 @ pass rounds |
| 2409 | mov r0, sp |
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 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2412 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2413 | vld1.64 {q8,q9}, [r0,:128]! |
| 2414 | vld1.64 {q10,q11}, [r0,:128]! |
| 2415 | veor q0, q0, q8 |
| 2416 | veor q1, q1, q9 |
| 2417 | veor q8, q6, q10 |
| 2418 | vst1.8 {q0,q1}, [r8]! |
| 2419 | veor q9, q4, q11 |
| 2420 | vst1.8 {q8,q9}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2421 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2422 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2423 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2424 | .align 4 |
| 2425 | .Lxts_dec_3: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2426 | veor q1, q1, q9 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2427 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2428 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2429 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2430 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2431 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2432 | veor q2, q2, q10 |
| 2433 | mov r5, r1 @ pass rounds |
| 2434 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2435 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2436 | bl _bsaes_decrypt8 |
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 | vld1.64 {q8,q9}, [r0,:128]! |
| 2439 | vld1.64 {q10}, [r0,:128]! |
| 2440 | veor q0, q0, q8 |
| 2441 | veor q1, q1, q9 |
| 2442 | veor q8, q6, q10 |
| 2443 | vst1.8 {q0,q1}, [r8]! |
| 2444 | vst1.8 {q8}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2445 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2446 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2447 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2448 | .align 4 |
| 2449 | .Lxts_dec_2: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2450 | veor q0, q0, q8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2451 | #ifndef BSAES_ASM_EXTENDED_KEY |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2452 | add r4, sp, #0x90 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2453 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2454 | add r4, r10, #248 @ pass key schedule |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2455 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2456 | veor q1, q1, q9 |
| 2457 | mov r5, r1 @ pass rounds |
| 2458 | mov r0, sp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2459 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2460 | bl _bsaes_decrypt8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2461 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2462 | vld1.64 {q8,q9}, [r0,:128]! |
| 2463 | veor q0, q0, q8 |
| 2464 | veor q1, q1, q9 |
| 2465 | vst1.8 {q0,q1}, [r8]! |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2466 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2467 | vld1.64 {q8}, [r0,:128] @ next round tweak |
| 2468 | b .Lxts_dec_done |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2469 | .align 4 |
| 2470 | .Lxts_dec_1: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2471 | mov r0, sp |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 2472 | veor q0, q0, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2473 | mov r1, sp |
| 2474 | vst1.8 {q0}, [sp,:128] |
David Benjamin | c895d6b | 2016-08-11 13:26:41 -0400 | [diff] [blame] | 2475 | mov r5, r2 @ preserve magic |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2476 | mov r2, r10 |
| 2477 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2478 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2479 | bl AES_decrypt |
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 | vld1.8 {q0}, [sp,:128] |
| 2482 | veor q0, q0, q8 |
| 2483 | vst1.8 {q0}, [r8]! |
| 2484 | mov r3, r4 |
| 2485 | mov r2, r5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2486 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2487 | vmov q8, q9 @ next round tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2488 | |
| 2489 | .Lxts_dec_done: |
| 2490 | #ifndef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2491 | adds r9, #0x10 |
| 2492 | beq .Lxts_dec_ret |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2493 | |
| 2494 | @ calculate one round of extra tweak for the stolen ciphertext |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2495 | vldmia r2, {q5} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2496 | vshr.s64 q6, q8, #63 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2497 | vand q6, q6, q5 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2498 | vadd.u64 q9, q8, q8 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2499 | vswp d13,d12 |
| 2500 | veor q9, q9, q6 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2501 | |
| 2502 | @ perform the final decryption with the last tweak value |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2503 | vld1.8 {q0}, [r7]! |
| 2504 | mov r0, sp |
| 2505 | veor q0, q0, q9 |
| 2506 | mov r1, sp |
| 2507 | vst1.8 {q0}, [sp,:128] |
| 2508 | mov r2, r10 |
| 2509 | mov r4, r3 @ preserve fp |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2510 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2511 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2512 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2513 | vld1.8 {q0}, [sp,:128] |
| 2514 | veor q0, q0, q9 |
| 2515 | vst1.8 {q0}, [r8] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2516 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2517 | mov r6, r8 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2518 | .Lxts_dec_steal: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2519 | ldrb r1, [r8] |
| 2520 | ldrb r0, [r7], #1 |
| 2521 | strb r1, [r8, #0x10] |
| 2522 | strb r0, [r8], #1 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2523 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2524 | subs r9, #1 |
| 2525 | bhi .Lxts_dec_steal |
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}, [r6] |
| 2528 | mov r0, sp |
| 2529 | veor q0, q8 |
| 2530 | mov r1, sp |
| 2531 | vst1.8 {q0}, [sp,:128] |
| 2532 | mov r2, r10 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2533 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2534 | bl AES_decrypt |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2535 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2536 | vld1.8 {q0}, [sp,:128] |
| 2537 | veor q0, q0, q8 |
| 2538 | vst1.8 {q0}, [r6] |
| 2539 | mov r3, r4 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2540 | #endif |
| 2541 | |
| 2542 | .Lxts_dec_ret: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2543 | bic r0, r3, #0xf |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2544 | vmov.i32 q0, #0 |
| 2545 | vmov.i32 q1, #0 |
| 2546 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2547 | ldr r1, [r3, #0x20+VFP_ABI_FRAME] @ chain tweak |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2548 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2549 | .Lxts_dec_bzero:@ wipe key schedule [if any] |
| 2550 | vstmia sp!, {q0,q1} |
| 2551 | cmp sp, r0 |
| 2552 | bne .Lxts_dec_bzero |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2553 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2554 | mov sp, r3 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2555 | #ifdef XTS_CHAIN_TWEAK |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2556 | vst1.8 {q8}, [r1] |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2557 | #endif |
| 2558 | VFP_ABI_POP |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 2559 | ldmia sp!, {r4,r5,r6,r7,r8,r9,r10, pc} @ return |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2560 | |
| 2561 | .size bsaes_xts_decrypt,.-bsaes_xts_decrypt |
| 2562 | #endif |
David Benjamin | 4969cc9 | 2016-04-22 15:02:23 -0400 | [diff] [blame] | 2563 | #endif |