Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 1 | #if defined(__arm__) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 2 | |
| 3 | @ ==================================================================== |
| 4 | @ Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
| 5 | @ project. The module is, however, dual licensed under OpenSSL and |
| 6 | @ CRYPTOGAMS licenses depending on where you obtain it. For further |
| 7 | @ details see http://www.openssl.org/~appro/cryptogams/. |
| 8 | @ ==================================================================== |
| 9 | |
| 10 | @ AES for ARMv4 |
| 11 | |
| 12 | @ January 2007. |
| 13 | @ |
| 14 | @ Code uses single 1K S-box and is >2 times faster than code generated |
| 15 | @ by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which |
| 16 | @ allows to merge logical or arithmetic operation with shift or rotate |
| 17 | @ in one instruction and emit combined result every cycle. The module |
| 18 | @ is endian-neutral. The performance is ~42 cycles/byte for 128-bit |
| 19 | @ key [on single-issue Xscale PXA250 core]. |
| 20 | |
| 21 | @ May 2007. |
| 22 | @ |
| 23 | @ AES_set_[en|de]crypt_key is added. |
| 24 | |
| 25 | @ July 2010. |
| 26 | @ |
| 27 | @ Rescheduling for dual-issue pipeline resulted in 12% improvement on |
| 28 | @ Cortex A8 core and ~25 cycles per byte processed with 128-bit key. |
| 29 | |
| 30 | @ February 2011. |
| 31 | @ |
| 32 | @ Profiler-assisted and platform-specific optimization resulted in 16% |
| 33 | @ improvement on Cortex A8 core and ~21.5 cycles per byte. |
| 34 | |
| 35 | #if defined(__arm__) |
| 36 | #ifndef __KERNEL__ |
Kenny Root | b849459 | 2015-09-25 02:29:14 +0000 | [diff] [blame] | 37 | # include <openssl/arm_arch.h> |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 38 | #else |
| 39 | # define __ARM_ARCH__ __LINUX_ARM_ARCH__ |
| 40 | #endif |
| 41 | |
| 42 | .text |
| 43 | #if __ARM_ARCH__<7 |
| 44 | .code 32 |
| 45 | #else |
| 46 | .syntax unified |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 47 | # if defined(__thumb2__) && !defined(__APPLE__) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 48 | .thumb |
| 49 | # else |
| 50 | .code 32 |
| 51 | # endif |
| 52 | #endif |
| 53 | |
| 54 | .type AES_Te,%object |
| 55 | .align 5 |
| 56 | AES_Te: |
| 57 | .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d |
| 58 | .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554 |
| 59 | .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d |
| 60 | .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a |
| 61 | .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87 |
| 62 | .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b |
| 63 | .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea |
| 64 | .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b |
| 65 | .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a |
| 66 | .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f |
| 67 | .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108 |
| 68 | .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f |
| 69 | .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e |
| 70 | .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5 |
| 71 | .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d |
| 72 | .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f |
| 73 | .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e |
| 74 | .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb |
| 75 | .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce |
| 76 | .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497 |
| 77 | .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c |
| 78 | .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed |
| 79 | .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b |
| 80 | .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a |
| 81 | .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16 |
| 82 | .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594 |
| 83 | .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81 |
| 84 | .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3 |
| 85 | .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a |
| 86 | .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504 |
| 87 | .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163 |
| 88 | .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d |
| 89 | .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f |
| 90 | .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739 |
| 91 | .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47 |
| 92 | .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395 |
| 93 | .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f |
| 94 | .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883 |
| 95 | .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c |
| 96 | .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76 |
| 97 | .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e |
| 98 | .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4 |
| 99 | .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6 |
| 100 | .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b |
| 101 | .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7 |
| 102 | .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0 |
| 103 | .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25 |
| 104 | .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818 |
| 105 | .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72 |
| 106 | .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651 |
| 107 | .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21 |
| 108 | .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85 |
| 109 | .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa |
| 110 | .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12 |
| 111 | .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0 |
| 112 | .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9 |
| 113 | .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133 |
| 114 | .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7 |
| 115 | .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920 |
| 116 | .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a |
| 117 | .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17 |
| 118 | .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8 |
| 119 | .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11 |
| 120 | .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a |
| 121 | @ Te4[256] |
| 122 | .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5 |
| 123 | .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76 |
| 124 | .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0 |
| 125 | .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0 |
| 126 | .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc |
| 127 | .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15 |
| 128 | .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a |
| 129 | .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75 |
| 130 | .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0 |
| 131 | .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84 |
| 132 | .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b |
| 133 | .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf |
| 134 | .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85 |
| 135 | .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8 |
| 136 | .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5 |
| 137 | .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2 |
| 138 | .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17 |
| 139 | .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73 |
| 140 | .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88 |
| 141 | .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb |
| 142 | .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c |
| 143 | .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79 |
| 144 | .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9 |
| 145 | .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08 |
| 146 | .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6 |
| 147 | .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a |
| 148 | .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e |
| 149 | .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e |
| 150 | .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94 |
| 151 | .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf |
| 152 | .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68 |
| 153 | .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 |
| 154 | @ rcon[] |
| 155 | .word 0x01000000, 0x02000000, 0x04000000, 0x08000000 |
| 156 | .word 0x10000000, 0x20000000, 0x40000000, 0x80000000 |
| 157 | .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0 |
| 158 | .size AES_Te,.-AES_Te |
| 159 | |
| 160 | @ void asm_AES_encrypt(const unsigned char *in, unsigned char *out, |
| 161 | @ const AES_KEY *key) { |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 162 | .globl asm_AES_encrypt |
| 163 | .hidden asm_AES_encrypt |
| 164 | .type asm_AES_encrypt,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 165 | .align 5 |
| 166 | asm_AES_encrypt: |
| 167 | #if __ARM_ARCH__<7 |
| 168 | sub r3,pc,#8 @ asm_AES_encrypt |
| 169 | #else |
| 170 | adr r3,asm_AES_encrypt |
| 171 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 172 | stmdb sp!,{r1,r4-r12,lr} |
| 173 | #ifdef __APPLE__ |
| 174 | adr r10,AES_Te |
| 175 | #else |
| 176 | sub r10,r3,#asm_AES_encrypt-AES_Te @ Te |
| 177 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 178 | mov r12,r0 @ inp |
| 179 | mov r11,r2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 180 | #if __ARM_ARCH__<7 |
| 181 | ldrb r0,[r12,#3] @ load input data in endian-neutral |
| 182 | ldrb r4,[r12,#2] @ manner... |
| 183 | ldrb r5,[r12,#1] |
| 184 | ldrb r6,[r12,#0] |
| 185 | orr r0,r0,r4,lsl#8 |
| 186 | ldrb r1,[r12,#7] |
| 187 | orr r0,r0,r5,lsl#16 |
| 188 | ldrb r4,[r12,#6] |
| 189 | orr r0,r0,r6,lsl#24 |
| 190 | ldrb r5,[r12,#5] |
| 191 | ldrb r6,[r12,#4] |
| 192 | orr r1,r1,r4,lsl#8 |
| 193 | ldrb r2,[r12,#11] |
| 194 | orr r1,r1,r5,lsl#16 |
| 195 | ldrb r4,[r12,#10] |
| 196 | orr r1,r1,r6,lsl#24 |
| 197 | ldrb r5,[r12,#9] |
| 198 | ldrb r6,[r12,#8] |
| 199 | orr r2,r2,r4,lsl#8 |
| 200 | ldrb r3,[r12,#15] |
| 201 | orr r2,r2,r5,lsl#16 |
| 202 | ldrb r4,[r12,#14] |
| 203 | orr r2,r2,r6,lsl#24 |
| 204 | ldrb r5,[r12,#13] |
| 205 | ldrb r6,[r12,#12] |
| 206 | orr r3,r3,r4,lsl#8 |
| 207 | orr r3,r3,r5,lsl#16 |
| 208 | orr r3,r3,r6,lsl#24 |
| 209 | #else |
| 210 | ldr r0,[r12,#0] |
| 211 | ldr r1,[r12,#4] |
| 212 | ldr r2,[r12,#8] |
| 213 | ldr r3,[r12,#12] |
| 214 | #ifdef __ARMEL__ |
| 215 | rev r0,r0 |
| 216 | rev r1,r1 |
| 217 | rev r2,r2 |
| 218 | rev r3,r3 |
| 219 | #endif |
| 220 | #endif |
| 221 | bl _armv4_AES_encrypt |
| 222 | |
| 223 | ldr r12,[sp],#4 @ pop out |
| 224 | #if __ARM_ARCH__>=7 |
| 225 | #ifdef __ARMEL__ |
| 226 | rev r0,r0 |
| 227 | rev r1,r1 |
| 228 | rev r2,r2 |
| 229 | rev r3,r3 |
| 230 | #endif |
| 231 | str r0,[r12,#0] |
| 232 | str r1,[r12,#4] |
| 233 | str r2,[r12,#8] |
| 234 | str r3,[r12,#12] |
| 235 | #else |
| 236 | mov r4,r0,lsr#24 @ write output in endian-neutral |
| 237 | mov r5,r0,lsr#16 @ manner... |
| 238 | mov r6,r0,lsr#8 |
| 239 | strb r4,[r12,#0] |
| 240 | strb r5,[r12,#1] |
| 241 | mov r4,r1,lsr#24 |
| 242 | strb r6,[r12,#2] |
| 243 | mov r5,r1,lsr#16 |
| 244 | strb r0,[r12,#3] |
| 245 | mov r6,r1,lsr#8 |
| 246 | strb r4,[r12,#4] |
| 247 | strb r5,[r12,#5] |
| 248 | mov r4,r2,lsr#24 |
| 249 | strb r6,[r12,#6] |
| 250 | mov r5,r2,lsr#16 |
| 251 | strb r1,[r12,#7] |
| 252 | mov r6,r2,lsr#8 |
| 253 | strb r4,[r12,#8] |
| 254 | strb r5,[r12,#9] |
| 255 | mov r4,r3,lsr#24 |
| 256 | strb r6,[r12,#10] |
| 257 | mov r5,r3,lsr#16 |
| 258 | strb r2,[r12,#11] |
| 259 | mov r6,r3,lsr#8 |
| 260 | strb r4,[r12,#12] |
| 261 | strb r5,[r12,#13] |
| 262 | strb r6,[r12,#14] |
| 263 | strb r3,[r12,#15] |
| 264 | #endif |
| 265 | #if __ARM_ARCH__>=5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 266 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 267 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 268 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 269 | tst lr,#1 |
| 270 | moveq pc,lr @ be binary compatible with V4, yet |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 271 | .word 0xe12fff1e @ interoperable with Thumb ISA:-) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 272 | #endif |
| 273 | .size asm_AES_encrypt,.-asm_AES_encrypt |
| 274 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 275 | .type _armv4_AES_encrypt,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 276 | .align 2 |
| 277 | _armv4_AES_encrypt: |
| 278 | str lr,[sp,#-4]! @ push lr |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 279 | ldmia r11!,{r4,r5,r6,r7} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 280 | eor r0,r0,r4 |
| 281 | ldr r12,[r11,#240-16] |
| 282 | eor r1,r1,r5 |
| 283 | eor r2,r2,r6 |
| 284 | eor r3,r3,r7 |
| 285 | sub r12,r12,#1 |
| 286 | mov lr,#255 |
| 287 | |
| 288 | and r7,lr,r0 |
| 289 | and r8,lr,r0,lsr#8 |
| 290 | and r9,lr,r0,lsr#16 |
| 291 | mov r0,r0,lsr#24 |
| 292 | .Lenc_loop: |
| 293 | ldr r4,[r10,r7,lsl#2] @ Te3[s0>>0] |
| 294 | and r7,lr,r1,lsr#16 @ i0 |
| 295 | ldr r5,[r10,r8,lsl#2] @ Te2[s0>>8] |
| 296 | and r8,lr,r1 |
| 297 | ldr r6,[r10,r9,lsl#2] @ Te1[s0>>16] |
| 298 | and r9,lr,r1,lsr#8 |
| 299 | ldr r0,[r10,r0,lsl#2] @ Te0[s0>>24] |
| 300 | mov r1,r1,lsr#24 |
| 301 | |
| 302 | ldr r7,[r10,r7,lsl#2] @ Te1[s1>>16] |
| 303 | ldr r8,[r10,r8,lsl#2] @ Te3[s1>>0] |
| 304 | ldr r9,[r10,r9,lsl#2] @ Te2[s1>>8] |
| 305 | eor r0,r0,r7,ror#8 |
| 306 | ldr r1,[r10,r1,lsl#2] @ Te0[s1>>24] |
| 307 | and r7,lr,r2,lsr#8 @ i0 |
| 308 | eor r5,r5,r8,ror#8 |
| 309 | and r8,lr,r2,lsr#16 @ i1 |
| 310 | eor r6,r6,r9,ror#8 |
| 311 | and r9,lr,r2 |
| 312 | ldr r7,[r10,r7,lsl#2] @ Te2[s2>>8] |
| 313 | eor r1,r1,r4,ror#24 |
| 314 | ldr r8,[r10,r8,lsl#2] @ Te1[s2>>16] |
| 315 | mov r2,r2,lsr#24 |
| 316 | |
| 317 | ldr r9,[r10,r9,lsl#2] @ Te3[s2>>0] |
| 318 | eor r0,r0,r7,ror#16 |
| 319 | ldr r2,[r10,r2,lsl#2] @ Te0[s2>>24] |
| 320 | and r7,lr,r3 @ i0 |
| 321 | eor r1,r1,r8,ror#8 |
| 322 | and r8,lr,r3,lsr#8 @ i1 |
| 323 | eor r6,r6,r9,ror#16 |
| 324 | and r9,lr,r3,lsr#16 @ i2 |
| 325 | ldr r7,[r10,r7,lsl#2] @ Te3[s3>>0] |
| 326 | eor r2,r2,r5,ror#16 |
| 327 | ldr r8,[r10,r8,lsl#2] @ Te2[s3>>8] |
| 328 | mov r3,r3,lsr#24 |
| 329 | |
| 330 | ldr r9,[r10,r9,lsl#2] @ Te1[s3>>16] |
| 331 | eor r0,r0,r7,ror#24 |
| 332 | ldr r7,[r11],#16 |
| 333 | eor r1,r1,r8,ror#16 |
| 334 | ldr r3,[r10,r3,lsl#2] @ Te0[s3>>24] |
| 335 | eor r2,r2,r9,ror#8 |
| 336 | ldr r4,[r11,#-12] |
| 337 | eor r3,r3,r6,ror#8 |
| 338 | |
| 339 | ldr r5,[r11,#-8] |
| 340 | eor r0,r0,r7 |
| 341 | ldr r6,[r11,#-4] |
| 342 | and r7,lr,r0 |
| 343 | eor r1,r1,r4 |
| 344 | and r8,lr,r0,lsr#8 |
| 345 | eor r2,r2,r5 |
| 346 | and r9,lr,r0,lsr#16 |
| 347 | eor r3,r3,r6 |
| 348 | mov r0,r0,lsr#24 |
| 349 | |
| 350 | subs r12,r12,#1 |
| 351 | bne .Lenc_loop |
| 352 | |
| 353 | add r10,r10,#2 |
| 354 | |
| 355 | ldrb r4,[r10,r7,lsl#2] @ Te4[s0>>0] |
| 356 | and r7,lr,r1,lsr#16 @ i0 |
| 357 | ldrb r5,[r10,r8,lsl#2] @ Te4[s0>>8] |
| 358 | and r8,lr,r1 |
| 359 | ldrb r6,[r10,r9,lsl#2] @ Te4[s0>>16] |
| 360 | and r9,lr,r1,lsr#8 |
| 361 | ldrb r0,[r10,r0,lsl#2] @ Te4[s0>>24] |
| 362 | mov r1,r1,lsr#24 |
| 363 | |
| 364 | ldrb r7,[r10,r7,lsl#2] @ Te4[s1>>16] |
| 365 | ldrb r8,[r10,r8,lsl#2] @ Te4[s1>>0] |
| 366 | ldrb r9,[r10,r9,lsl#2] @ Te4[s1>>8] |
| 367 | eor r0,r7,r0,lsl#8 |
| 368 | ldrb r1,[r10,r1,lsl#2] @ Te4[s1>>24] |
| 369 | and r7,lr,r2,lsr#8 @ i0 |
| 370 | eor r5,r8,r5,lsl#8 |
| 371 | and r8,lr,r2,lsr#16 @ i1 |
| 372 | eor r6,r9,r6,lsl#8 |
| 373 | and r9,lr,r2 |
| 374 | ldrb r7,[r10,r7,lsl#2] @ Te4[s2>>8] |
| 375 | eor r1,r4,r1,lsl#24 |
| 376 | ldrb r8,[r10,r8,lsl#2] @ Te4[s2>>16] |
| 377 | mov r2,r2,lsr#24 |
| 378 | |
| 379 | ldrb r9,[r10,r9,lsl#2] @ Te4[s2>>0] |
| 380 | eor r0,r7,r0,lsl#8 |
| 381 | ldrb r2,[r10,r2,lsl#2] @ Te4[s2>>24] |
| 382 | and r7,lr,r3 @ i0 |
| 383 | eor r1,r1,r8,lsl#16 |
| 384 | and r8,lr,r3,lsr#8 @ i1 |
| 385 | eor r6,r9,r6,lsl#8 |
| 386 | and r9,lr,r3,lsr#16 @ i2 |
| 387 | ldrb r7,[r10,r7,lsl#2] @ Te4[s3>>0] |
| 388 | eor r2,r5,r2,lsl#24 |
| 389 | ldrb r8,[r10,r8,lsl#2] @ Te4[s3>>8] |
| 390 | mov r3,r3,lsr#24 |
| 391 | |
| 392 | ldrb r9,[r10,r9,lsl#2] @ Te4[s3>>16] |
| 393 | eor r0,r7,r0,lsl#8 |
| 394 | ldr r7,[r11,#0] |
| 395 | ldrb r3,[r10,r3,lsl#2] @ Te4[s3>>24] |
| 396 | eor r1,r1,r8,lsl#8 |
| 397 | ldr r4,[r11,#4] |
| 398 | eor r2,r2,r9,lsl#16 |
| 399 | ldr r5,[r11,#8] |
| 400 | eor r3,r6,r3,lsl#24 |
| 401 | ldr r6,[r11,#12] |
| 402 | |
| 403 | eor r0,r0,r7 |
| 404 | eor r1,r1,r4 |
| 405 | eor r2,r2,r5 |
| 406 | eor r3,r3,r6 |
| 407 | |
| 408 | sub r10,r10,#2 |
| 409 | ldr pc,[sp],#4 @ pop and return |
| 410 | .size _armv4_AES_encrypt,.-_armv4_AES_encrypt |
| 411 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 412 | .globl asm_AES_set_encrypt_key |
| 413 | .hidden asm_AES_set_encrypt_key |
| 414 | .type asm_AES_set_encrypt_key,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 415 | .align 5 |
| 416 | asm_AES_set_encrypt_key: |
| 417 | _armv4_AES_set_encrypt_key: |
| 418 | #if __ARM_ARCH__<7 |
| 419 | sub r3,pc,#8 @ asm_AES_set_encrypt_key |
| 420 | #else |
| 421 | adr r3,asm_AES_set_encrypt_key |
| 422 | #endif |
| 423 | teq r0,#0 |
| 424 | #if __ARM_ARCH__>=7 |
| 425 | itt eq @ Thumb2 thing, sanity check in ARM |
| 426 | #endif |
| 427 | moveq r0,#-1 |
| 428 | beq .Labrt |
| 429 | teq r2,#0 |
| 430 | #if __ARM_ARCH__>=7 |
| 431 | itt eq @ Thumb2 thing, sanity check in ARM |
| 432 | #endif |
| 433 | moveq r0,#-1 |
| 434 | beq .Labrt |
| 435 | |
| 436 | teq r1,#128 |
| 437 | beq .Lok |
| 438 | teq r1,#192 |
| 439 | beq .Lok |
| 440 | teq r1,#256 |
| 441 | #if __ARM_ARCH__>=7 |
| 442 | itt ne @ Thumb2 thing, sanity check in ARM |
| 443 | #endif |
| 444 | movne r0,#-1 |
| 445 | bne .Labrt |
| 446 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 447 | .Lok: stmdb sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 448 | mov r12,r0 @ inp |
| 449 | mov lr,r1 @ bits |
| 450 | mov r11,r2 @ key |
| 451 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 452 | #ifdef __APPLE__ |
| 453 | adr r10,AES_Te+1024 @ Te4 |
| 454 | #else |
| 455 | sub r10,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4 |
| 456 | #endif |
| 457 | |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 458 | #if __ARM_ARCH__<7 |
| 459 | ldrb r0,[r12,#3] @ load input data in endian-neutral |
| 460 | ldrb r4,[r12,#2] @ manner... |
| 461 | ldrb r5,[r12,#1] |
| 462 | ldrb r6,[r12,#0] |
| 463 | orr r0,r0,r4,lsl#8 |
| 464 | ldrb r1,[r12,#7] |
| 465 | orr r0,r0,r5,lsl#16 |
| 466 | ldrb r4,[r12,#6] |
| 467 | orr r0,r0,r6,lsl#24 |
| 468 | ldrb r5,[r12,#5] |
| 469 | ldrb r6,[r12,#4] |
| 470 | orr r1,r1,r4,lsl#8 |
| 471 | ldrb r2,[r12,#11] |
| 472 | orr r1,r1,r5,lsl#16 |
| 473 | ldrb r4,[r12,#10] |
| 474 | orr r1,r1,r6,lsl#24 |
| 475 | ldrb r5,[r12,#9] |
| 476 | ldrb r6,[r12,#8] |
| 477 | orr r2,r2,r4,lsl#8 |
| 478 | ldrb r3,[r12,#15] |
| 479 | orr r2,r2,r5,lsl#16 |
| 480 | ldrb r4,[r12,#14] |
| 481 | orr r2,r2,r6,lsl#24 |
| 482 | ldrb r5,[r12,#13] |
| 483 | ldrb r6,[r12,#12] |
| 484 | orr r3,r3,r4,lsl#8 |
| 485 | str r0,[r11],#16 |
| 486 | orr r3,r3,r5,lsl#16 |
| 487 | str r1,[r11,#-12] |
| 488 | orr r3,r3,r6,lsl#24 |
| 489 | str r2,[r11,#-8] |
| 490 | str r3,[r11,#-4] |
| 491 | #else |
| 492 | ldr r0,[r12,#0] |
| 493 | ldr r1,[r12,#4] |
| 494 | ldr r2,[r12,#8] |
| 495 | ldr r3,[r12,#12] |
| 496 | #ifdef __ARMEL__ |
| 497 | rev r0,r0 |
| 498 | rev r1,r1 |
| 499 | rev r2,r2 |
| 500 | rev r3,r3 |
| 501 | #endif |
| 502 | str r0,[r11],#16 |
| 503 | str r1,[r11,#-12] |
| 504 | str r2,[r11,#-8] |
| 505 | str r3,[r11,#-4] |
| 506 | #endif |
| 507 | |
| 508 | teq lr,#128 |
| 509 | bne .Lnot128 |
| 510 | mov r12,#10 |
| 511 | str r12,[r11,#240-16] |
| 512 | add r6,r10,#256 @ rcon |
| 513 | mov lr,#255 |
| 514 | |
| 515 | .L128_loop: |
| 516 | and r5,lr,r3,lsr#24 |
| 517 | and r7,lr,r3,lsr#16 |
| 518 | ldrb r5,[r10,r5] |
| 519 | and r8,lr,r3,lsr#8 |
| 520 | ldrb r7,[r10,r7] |
| 521 | and r9,lr,r3 |
| 522 | ldrb r8,[r10,r8] |
| 523 | orr r5,r5,r7,lsl#24 |
| 524 | ldrb r9,[r10,r9] |
| 525 | orr r5,r5,r8,lsl#16 |
| 526 | ldr r4,[r6],#4 @ rcon[i++] |
| 527 | orr r5,r5,r9,lsl#8 |
| 528 | eor r5,r5,r4 |
| 529 | eor r0,r0,r5 @ rk[4]=rk[0]^... |
| 530 | eor r1,r1,r0 @ rk[5]=rk[1]^rk[4] |
| 531 | str r0,[r11],#16 |
| 532 | eor r2,r2,r1 @ rk[6]=rk[2]^rk[5] |
| 533 | str r1,[r11,#-12] |
| 534 | eor r3,r3,r2 @ rk[7]=rk[3]^rk[6] |
| 535 | str r2,[r11,#-8] |
| 536 | subs r12,r12,#1 |
| 537 | str r3,[r11,#-4] |
| 538 | bne .L128_loop |
| 539 | sub r2,r11,#176 |
| 540 | b .Ldone |
| 541 | |
| 542 | .Lnot128: |
| 543 | #if __ARM_ARCH__<7 |
| 544 | ldrb r8,[r12,#19] |
| 545 | ldrb r4,[r12,#18] |
| 546 | ldrb r5,[r12,#17] |
| 547 | ldrb r6,[r12,#16] |
| 548 | orr r8,r8,r4,lsl#8 |
| 549 | ldrb r9,[r12,#23] |
| 550 | orr r8,r8,r5,lsl#16 |
| 551 | ldrb r4,[r12,#22] |
| 552 | orr r8,r8,r6,lsl#24 |
| 553 | ldrb r5,[r12,#21] |
| 554 | ldrb r6,[r12,#20] |
| 555 | orr r9,r9,r4,lsl#8 |
| 556 | orr r9,r9,r5,lsl#16 |
| 557 | str r8,[r11],#8 |
| 558 | orr r9,r9,r6,lsl#24 |
| 559 | str r9,[r11,#-4] |
| 560 | #else |
| 561 | ldr r8,[r12,#16] |
| 562 | ldr r9,[r12,#20] |
| 563 | #ifdef __ARMEL__ |
| 564 | rev r8,r8 |
| 565 | rev r9,r9 |
| 566 | #endif |
| 567 | str r8,[r11],#8 |
| 568 | str r9,[r11,#-4] |
| 569 | #endif |
| 570 | |
| 571 | teq lr,#192 |
| 572 | bne .Lnot192 |
| 573 | mov r12,#12 |
| 574 | str r12,[r11,#240-24] |
| 575 | add r6,r10,#256 @ rcon |
| 576 | mov lr,#255 |
| 577 | mov r12,#8 |
| 578 | |
| 579 | .L192_loop: |
| 580 | and r5,lr,r9,lsr#24 |
| 581 | and r7,lr,r9,lsr#16 |
| 582 | ldrb r5,[r10,r5] |
| 583 | and r8,lr,r9,lsr#8 |
| 584 | ldrb r7,[r10,r7] |
| 585 | and r9,lr,r9 |
| 586 | ldrb r8,[r10,r8] |
| 587 | orr r5,r5,r7,lsl#24 |
| 588 | ldrb r9,[r10,r9] |
| 589 | orr r5,r5,r8,lsl#16 |
| 590 | ldr r4,[r6],#4 @ rcon[i++] |
| 591 | orr r5,r5,r9,lsl#8 |
| 592 | eor r9,r5,r4 |
| 593 | eor r0,r0,r9 @ rk[6]=rk[0]^... |
| 594 | eor r1,r1,r0 @ rk[7]=rk[1]^rk[6] |
| 595 | str r0,[r11],#24 |
| 596 | eor r2,r2,r1 @ rk[8]=rk[2]^rk[7] |
| 597 | str r1,[r11,#-20] |
| 598 | eor r3,r3,r2 @ rk[9]=rk[3]^rk[8] |
| 599 | str r2,[r11,#-16] |
| 600 | subs r12,r12,#1 |
| 601 | str r3,[r11,#-12] |
| 602 | #if __ARM_ARCH__>=7 |
| 603 | itt eq @ Thumb2 thing, sanity check in ARM |
| 604 | #endif |
| 605 | subeq r2,r11,#216 |
| 606 | beq .Ldone |
| 607 | |
| 608 | ldr r7,[r11,#-32] |
| 609 | ldr r8,[r11,#-28] |
| 610 | eor r7,r7,r3 @ rk[10]=rk[4]^rk[9] |
| 611 | eor r9,r8,r7 @ rk[11]=rk[5]^rk[10] |
| 612 | str r7,[r11,#-8] |
| 613 | str r9,[r11,#-4] |
| 614 | b .L192_loop |
| 615 | |
| 616 | .Lnot192: |
| 617 | #if __ARM_ARCH__<7 |
| 618 | ldrb r8,[r12,#27] |
| 619 | ldrb r4,[r12,#26] |
| 620 | ldrb r5,[r12,#25] |
| 621 | ldrb r6,[r12,#24] |
| 622 | orr r8,r8,r4,lsl#8 |
| 623 | ldrb r9,[r12,#31] |
| 624 | orr r8,r8,r5,lsl#16 |
| 625 | ldrb r4,[r12,#30] |
| 626 | orr r8,r8,r6,lsl#24 |
| 627 | ldrb r5,[r12,#29] |
| 628 | ldrb r6,[r12,#28] |
| 629 | orr r9,r9,r4,lsl#8 |
| 630 | orr r9,r9,r5,lsl#16 |
| 631 | str r8,[r11],#8 |
| 632 | orr r9,r9,r6,lsl#24 |
| 633 | str r9,[r11,#-4] |
| 634 | #else |
| 635 | ldr r8,[r12,#24] |
| 636 | ldr r9,[r12,#28] |
| 637 | #ifdef __ARMEL__ |
| 638 | rev r8,r8 |
| 639 | rev r9,r9 |
| 640 | #endif |
| 641 | str r8,[r11],#8 |
| 642 | str r9,[r11,#-4] |
| 643 | #endif |
| 644 | |
| 645 | mov r12,#14 |
| 646 | str r12,[r11,#240-32] |
| 647 | add r6,r10,#256 @ rcon |
| 648 | mov lr,#255 |
| 649 | mov r12,#7 |
| 650 | |
| 651 | .L256_loop: |
| 652 | and r5,lr,r9,lsr#24 |
| 653 | and r7,lr,r9,lsr#16 |
| 654 | ldrb r5,[r10,r5] |
| 655 | and r8,lr,r9,lsr#8 |
| 656 | ldrb r7,[r10,r7] |
| 657 | and r9,lr,r9 |
| 658 | ldrb r8,[r10,r8] |
| 659 | orr r5,r5,r7,lsl#24 |
| 660 | ldrb r9,[r10,r9] |
| 661 | orr r5,r5,r8,lsl#16 |
| 662 | ldr r4,[r6],#4 @ rcon[i++] |
| 663 | orr r5,r5,r9,lsl#8 |
| 664 | eor r9,r5,r4 |
| 665 | eor r0,r0,r9 @ rk[8]=rk[0]^... |
| 666 | eor r1,r1,r0 @ rk[9]=rk[1]^rk[8] |
| 667 | str r0,[r11],#32 |
| 668 | eor r2,r2,r1 @ rk[10]=rk[2]^rk[9] |
| 669 | str r1,[r11,#-28] |
| 670 | eor r3,r3,r2 @ rk[11]=rk[3]^rk[10] |
| 671 | str r2,[r11,#-24] |
| 672 | subs r12,r12,#1 |
| 673 | str r3,[r11,#-20] |
| 674 | #if __ARM_ARCH__>=7 |
| 675 | itt eq @ Thumb2 thing, sanity check in ARM |
| 676 | #endif |
| 677 | subeq r2,r11,#256 |
| 678 | beq .Ldone |
| 679 | |
| 680 | and r5,lr,r3 |
| 681 | and r7,lr,r3,lsr#8 |
| 682 | ldrb r5,[r10,r5] |
| 683 | and r8,lr,r3,lsr#16 |
| 684 | ldrb r7,[r10,r7] |
| 685 | and r9,lr,r3,lsr#24 |
| 686 | ldrb r8,[r10,r8] |
| 687 | orr r5,r5,r7,lsl#8 |
| 688 | ldrb r9,[r10,r9] |
| 689 | orr r5,r5,r8,lsl#16 |
| 690 | ldr r4,[r11,#-48] |
| 691 | orr r5,r5,r9,lsl#24 |
| 692 | |
| 693 | ldr r7,[r11,#-44] |
| 694 | ldr r8,[r11,#-40] |
| 695 | eor r4,r4,r5 @ rk[12]=rk[4]^... |
| 696 | ldr r9,[r11,#-36] |
| 697 | eor r7,r7,r4 @ rk[13]=rk[5]^rk[12] |
| 698 | str r4,[r11,#-16] |
| 699 | eor r8,r8,r7 @ rk[14]=rk[6]^rk[13] |
| 700 | str r7,[r11,#-12] |
| 701 | eor r9,r9,r8 @ rk[15]=rk[7]^rk[14] |
| 702 | str r8,[r11,#-8] |
| 703 | str r9,[r11,#-4] |
| 704 | b .L256_loop |
| 705 | |
| 706 | .align 2 |
| 707 | .Ldone: mov r0,#0 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 708 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 709 | .Labrt: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 710 | #if __ARM_ARCH__>=5 |
| 711 | bx lr @ .word 0xe12fff1e |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 712 | #else |
| 713 | tst lr,#1 |
| 714 | moveq pc,lr @ be binary compatible with V4, yet |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 715 | .word 0xe12fff1e @ interoperable with Thumb ISA:-) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 716 | #endif |
| 717 | .size asm_AES_set_encrypt_key,.-asm_AES_set_encrypt_key |
| 718 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 719 | .globl asm_AES_set_decrypt_key |
| 720 | .hidden asm_AES_set_decrypt_key |
| 721 | .type asm_AES_set_decrypt_key,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 722 | .align 5 |
| 723 | asm_AES_set_decrypt_key: |
| 724 | str lr,[sp,#-4]! @ push lr |
| 725 | bl _armv4_AES_set_encrypt_key |
| 726 | teq r0,#0 |
| 727 | ldr lr,[sp],#4 @ pop lr |
| 728 | bne .Labrt |
| 729 | |
| 730 | mov r0,r2 @ asm_AES_set_encrypt_key preserves r2, |
| 731 | mov r1,r2 @ which is AES_KEY *key |
| 732 | b _armv4_AES_set_enc2dec_key |
| 733 | .size asm_AES_set_decrypt_key,.-asm_AES_set_decrypt_key |
| 734 | |
| 735 | @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out) |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 736 | .globl AES_set_enc2dec_key |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 737 | .hidden AES_set_enc2dec_key |
| 738 | .type AES_set_enc2dec_key,%function |
| 739 | .align 5 |
| 740 | AES_set_enc2dec_key: |
| 741 | _armv4_AES_set_enc2dec_key: |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 742 | stmdb sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 743 | |
| 744 | ldr r12,[r0,#240] |
| 745 | mov r7,r0 @ input |
| 746 | add r8,r0,r12,lsl#4 |
| 747 | mov r11,r1 @ ouput |
| 748 | add r10,r1,r12,lsl#4 |
| 749 | str r12,[r1,#240] |
| 750 | |
| 751 | .Linv: ldr r0,[r7],#16 |
| 752 | ldr r1,[r7,#-12] |
| 753 | ldr r2,[r7,#-8] |
| 754 | ldr r3,[r7,#-4] |
| 755 | ldr r4,[r8],#-16 |
| 756 | ldr r5,[r8,#16+4] |
| 757 | ldr r6,[r8,#16+8] |
| 758 | ldr r9,[r8,#16+12] |
| 759 | str r0,[r10],#-16 |
| 760 | str r1,[r10,#16+4] |
| 761 | str r2,[r10,#16+8] |
| 762 | str r3,[r10,#16+12] |
| 763 | str r4,[r11],#16 |
| 764 | str r5,[r11,#-12] |
| 765 | str r6,[r11,#-8] |
| 766 | str r9,[r11,#-4] |
| 767 | teq r7,r8 |
| 768 | bne .Linv |
| 769 | |
| 770 | ldr r0,[r7] |
| 771 | ldr r1,[r7,#4] |
| 772 | ldr r2,[r7,#8] |
| 773 | ldr r3,[r7,#12] |
| 774 | str r0,[r11] |
| 775 | str r1,[r11,#4] |
| 776 | str r2,[r11,#8] |
| 777 | str r3,[r11,#12] |
| 778 | sub r11,r11,r12,lsl#3 |
| 779 | ldr r0,[r11,#16]! @ prefetch tp1 |
| 780 | mov r7,#0x80 |
| 781 | mov r8,#0x1b |
| 782 | orr r7,r7,#0x8000 |
| 783 | orr r8,r8,#0x1b00 |
| 784 | orr r7,r7,r7,lsl#16 |
| 785 | orr r8,r8,r8,lsl#16 |
| 786 | sub r12,r12,#1 |
| 787 | mvn r9,r7 |
| 788 | mov r12,r12,lsl#2 @ (rounds-1)*4 |
| 789 | |
| 790 | .Lmix: and r4,r0,r7 |
| 791 | and r1,r0,r9 |
| 792 | sub r4,r4,r4,lsr#7 |
| 793 | and r4,r4,r8 |
| 794 | eor r1,r4,r1,lsl#1 @ tp2 |
| 795 | |
| 796 | and r4,r1,r7 |
| 797 | and r2,r1,r9 |
| 798 | sub r4,r4,r4,lsr#7 |
| 799 | and r4,r4,r8 |
| 800 | eor r2,r4,r2,lsl#1 @ tp4 |
| 801 | |
| 802 | and r4,r2,r7 |
| 803 | and r3,r2,r9 |
| 804 | sub r4,r4,r4,lsr#7 |
| 805 | and r4,r4,r8 |
| 806 | eor r3,r4,r3,lsl#1 @ tp8 |
| 807 | |
| 808 | eor r4,r1,r2 |
| 809 | eor r5,r0,r3 @ tp9 |
| 810 | eor r4,r4,r3 @ tpe |
| 811 | eor r4,r4,r1,ror#24 |
| 812 | eor r4,r4,r5,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8) |
| 813 | eor r4,r4,r2,ror#16 |
| 814 | eor r4,r4,r5,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16) |
| 815 | eor r4,r4,r5,ror#8 @ ^= ROTATE(tp9,24) |
| 816 | |
| 817 | ldr r0,[r11,#4] @ prefetch tp1 |
| 818 | str r4,[r11],#4 |
| 819 | subs r12,r12,#1 |
| 820 | bne .Lmix |
| 821 | |
| 822 | mov r0,#0 |
| 823 | #if __ARM_ARCH__>=5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 824 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 825 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 826 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 827 | tst lr,#1 |
| 828 | moveq pc,lr @ be binary compatible with V4, yet |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 829 | .word 0xe12fff1e @ interoperable with Thumb ISA:-) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 830 | #endif |
| 831 | .size AES_set_enc2dec_key,.-AES_set_enc2dec_key |
| 832 | |
| 833 | .type AES_Td,%object |
| 834 | .align 5 |
| 835 | AES_Td: |
| 836 | .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96 |
| 837 | .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393 |
| 838 | .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25 |
| 839 | .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f |
| 840 | .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1 |
| 841 | .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6 |
| 842 | .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da |
| 843 | .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844 |
| 844 | .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd |
| 845 | .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4 |
| 846 | .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45 |
| 847 | .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94 |
| 848 | .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7 |
| 849 | .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a |
| 850 | .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5 |
| 851 | .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c |
| 852 | .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1 |
| 853 | .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a |
| 854 | .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75 |
| 855 | .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051 |
| 856 | .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46 |
| 857 | .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff |
| 858 | .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77 |
| 859 | .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb |
| 860 | .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000 |
| 861 | .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e |
| 862 | .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927 |
| 863 | .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a |
| 864 | .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e |
| 865 | .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16 |
| 866 | .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d |
| 867 | .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8 |
| 868 | .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd |
| 869 | .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34 |
| 870 | .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163 |
| 871 | .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120 |
| 872 | .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d |
| 873 | .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0 |
| 874 | .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422 |
| 875 | .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef |
| 876 | .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36 |
| 877 | .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4 |
| 878 | .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662 |
| 879 | .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5 |
| 880 | .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3 |
| 881 | .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b |
| 882 | .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8 |
| 883 | .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6 |
| 884 | .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6 |
| 885 | .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0 |
| 886 | .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815 |
| 887 | .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f |
| 888 | .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df |
| 889 | .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f |
| 890 | .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e |
| 891 | .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713 |
| 892 | .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89 |
| 893 | .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c |
| 894 | .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf |
| 895 | .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86 |
| 896 | .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f |
| 897 | .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541 |
| 898 | .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190 |
| 899 | .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 |
| 900 | @ Td4[256] |
| 901 | .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38 |
| 902 | .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb |
| 903 | .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87 |
| 904 | .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb |
| 905 | .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d |
| 906 | .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e |
| 907 | .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2 |
| 908 | .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25 |
| 909 | .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16 |
| 910 | .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92 |
| 911 | .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda |
| 912 | .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84 |
| 913 | .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a |
| 914 | .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06 |
| 915 | .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02 |
| 916 | .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b |
| 917 | .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea |
| 918 | .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73 |
| 919 | .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85 |
| 920 | .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e |
| 921 | .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89 |
| 922 | .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b |
| 923 | .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20 |
| 924 | .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4 |
| 925 | .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31 |
| 926 | .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f |
| 927 | .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d |
| 928 | .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef |
| 929 | .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0 |
| 930 | .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61 |
| 931 | .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26 |
| 932 | .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d |
| 933 | .size AES_Td,.-AES_Td |
| 934 | |
| 935 | @ void asm_AES_decrypt(const unsigned char *in, unsigned char *out, |
| 936 | @ const AES_KEY *key) { |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 937 | .globl asm_AES_decrypt |
| 938 | .hidden asm_AES_decrypt |
| 939 | .type asm_AES_decrypt,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 940 | .align 5 |
| 941 | asm_AES_decrypt: |
| 942 | #if __ARM_ARCH__<7 |
| 943 | sub r3,pc,#8 @ asm_AES_decrypt |
| 944 | #else |
| 945 | adr r3,asm_AES_decrypt |
| 946 | #endif |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 947 | stmdb sp!,{r1,r4-r12,lr} |
| 948 | #ifdef __APPLE__ |
| 949 | adr r10,AES_Td |
| 950 | #else |
| 951 | sub r10,r3,#asm_AES_decrypt-AES_Td @ Td |
| 952 | #endif |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 953 | mov r12,r0 @ inp |
| 954 | mov r11,r2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 955 | #if __ARM_ARCH__<7 |
| 956 | ldrb r0,[r12,#3] @ load input data in endian-neutral |
| 957 | ldrb r4,[r12,#2] @ manner... |
| 958 | ldrb r5,[r12,#1] |
| 959 | ldrb r6,[r12,#0] |
| 960 | orr r0,r0,r4,lsl#8 |
| 961 | ldrb r1,[r12,#7] |
| 962 | orr r0,r0,r5,lsl#16 |
| 963 | ldrb r4,[r12,#6] |
| 964 | orr r0,r0,r6,lsl#24 |
| 965 | ldrb r5,[r12,#5] |
| 966 | ldrb r6,[r12,#4] |
| 967 | orr r1,r1,r4,lsl#8 |
| 968 | ldrb r2,[r12,#11] |
| 969 | orr r1,r1,r5,lsl#16 |
| 970 | ldrb r4,[r12,#10] |
| 971 | orr r1,r1,r6,lsl#24 |
| 972 | ldrb r5,[r12,#9] |
| 973 | ldrb r6,[r12,#8] |
| 974 | orr r2,r2,r4,lsl#8 |
| 975 | ldrb r3,[r12,#15] |
| 976 | orr r2,r2,r5,lsl#16 |
| 977 | ldrb r4,[r12,#14] |
| 978 | orr r2,r2,r6,lsl#24 |
| 979 | ldrb r5,[r12,#13] |
| 980 | ldrb r6,[r12,#12] |
| 981 | orr r3,r3,r4,lsl#8 |
| 982 | orr r3,r3,r5,lsl#16 |
| 983 | orr r3,r3,r6,lsl#24 |
| 984 | #else |
| 985 | ldr r0,[r12,#0] |
| 986 | ldr r1,[r12,#4] |
| 987 | ldr r2,[r12,#8] |
| 988 | ldr r3,[r12,#12] |
| 989 | #ifdef __ARMEL__ |
| 990 | rev r0,r0 |
| 991 | rev r1,r1 |
| 992 | rev r2,r2 |
| 993 | rev r3,r3 |
| 994 | #endif |
| 995 | #endif |
| 996 | bl _armv4_AES_decrypt |
| 997 | |
| 998 | ldr r12,[sp],#4 @ pop out |
| 999 | #if __ARM_ARCH__>=7 |
| 1000 | #ifdef __ARMEL__ |
| 1001 | rev r0,r0 |
| 1002 | rev r1,r1 |
| 1003 | rev r2,r2 |
| 1004 | rev r3,r3 |
| 1005 | #endif |
| 1006 | str r0,[r12,#0] |
| 1007 | str r1,[r12,#4] |
| 1008 | str r2,[r12,#8] |
| 1009 | str r3,[r12,#12] |
| 1010 | #else |
| 1011 | mov r4,r0,lsr#24 @ write output in endian-neutral |
| 1012 | mov r5,r0,lsr#16 @ manner... |
| 1013 | mov r6,r0,lsr#8 |
| 1014 | strb r4,[r12,#0] |
| 1015 | strb r5,[r12,#1] |
| 1016 | mov r4,r1,lsr#24 |
| 1017 | strb r6,[r12,#2] |
| 1018 | mov r5,r1,lsr#16 |
| 1019 | strb r0,[r12,#3] |
| 1020 | mov r6,r1,lsr#8 |
| 1021 | strb r4,[r12,#4] |
| 1022 | strb r5,[r12,#5] |
| 1023 | mov r4,r2,lsr#24 |
| 1024 | strb r6,[r12,#6] |
| 1025 | mov r5,r2,lsr#16 |
| 1026 | strb r1,[r12,#7] |
| 1027 | mov r6,r2,lsr#8 |
| 1028 | strb r4,[r12,#8] |
| 1029 | strb r5,[r12,#9] |
| 1030 | mov r4,r3,lsr#24 |
| 1031 | strb r6,[r12,#10] |
| 1032 | mov r5,r3,lsr#16 |
| 1033 | strb r2,[r12,#11] |
| 1034 | mov r6,r3,lsr#8 |
| 1035 | strb r4,[r12,#12] |
| 1036 | strb r5,[r12,#13] |
| 1037 | strb r6,[r12,#14] |
| 1038 | strb r3,[r12,#15] |
| 1039 | #endif |
| 1040 | #if __ARM_ARCH__>=5 |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1041 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,pc} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1042 | #else |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1043 | ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1044 | tst lr,#1 |
| 1045 | moveq pc,lr @ be binary compatible with V4, yet |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1046 | .word 0xe12fff1e @ interoperable with Thumb ISA:-) |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1047 | #endif |
| 1048 | .size asm_AES_decrypt,.-asm_AES_decrypt |
| 1049 | |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1050 | .type _armv4_AES_decrypt,%function |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1051 | .align 2 |
| 1052 | _armv4_AES_decrypt: |
| 1053 | str lr,[sp,#-4]! @ push lr |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1054 | ldmia r11!,{r4,r5,r6,r7} |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1055 | eor r0,r0,r4 |
| 1056 | ldr r12,[r11,#240-16] |
| 1057 | eor r1,r1,r5 |
| 1058 | eor r2,r2,r6 |
| 1059 | eor r3,r3,r7 |
| 1060 | sub r12,r12,#1 |
| 1061 | mov lr,#255 |
| 1062 | |
| 1063 | and r7,lr,r0,lsr#16 |
| 1064 | and r8,lr,r0,lsr#8 |
| 1065 | and r9,lr,r0 |
| 1066 | mov r0,r0,lsr#24 |
| 1067 | .Ldec_loop: |
| 1068 | ldr r4,[r10,r7,lsl#2] @ Td1[s0>>16] |
| 1069 | and r7,lr,r1 @ i0 |
| 1070 | ldr r5,[r10,r8,lsl#2] @ Td2[s0>>8] |
| 1071 | and r8,lr,r1,lsr#16 |
| 1072 | ldr r6,[r10,r9,lsl#2] @ Td3[s0>>0] |
| 1073 | and r9,lr,r1,lsr#8 |
| 1074 | ldr r0,[r10,r0,lsl#2] @ Td0[s0>>24] |
| 1075 | mov r1,r1,lsr#24 |
| 1076 | |
| 1077 | ldr r7,[r10,r7,lsl#2] @ Td3[s1>>0] |
| 1078 | ldr r8,[r10,r8,lsl#2] @ Td1[s1>>16] |
| 1079 | ldr r9,[r10,r9,lsl#2] @ Td2[s1>>8] |
| 1080 | eor r0,r0,r7,ror#24 |
| 1081 | ldr r1,[r10,r1,lsl#2] @ Td0[s1>>24] |
| 1082 | and r7,lr,r2,lsr#8 @ i0 |
| 1083 | eor r5,r8,r5,ror#8 |
| 1084 | and r8,lr,r2 @ i1 |
| 1085 | eor r6,r9,r6,ror#8 |
| 1086 | and r9,lr,r2,lsr#16 |
| 1087 | ldr r7,[r10,r7,lsl#2] @ Td2[s2>>8] |
| 1088 | eor r1,r1,r4,ror#8 |
| 1089 | ldr r8,[r10,r8,lsl#2] @ Td3[s2>>0] |
| 1090 | mov r2,r2,lsr#24 |
| 1091 | |
| 1092 | ldr r9,[r10,r9,lsl#2] @ Td1[s2>>16] |
| 1093 | eor r0,r0,r7,ror#16 |
| 1094 | ldr r2,[r10,r2,lsl#2] @ Td0[s2>>24] |
| 1095 | and r7,lr,r3,lsr#16 @ i0 |
| 1096 | eor r1,r1,r8,ror#24 |
| 1097 | and r8,lr,r3,lsr#8 @ i1 |
| 1098 | eor r6,r9,r6,ror#8 |
| 1099 | and r9,lr,r3 @ i2 |
| 1100 | ldr r7,[r10,r7,lsl#2] @ Td1[s3>>16] |
| 1101 | eor r2,r2,r5,ror#8 |
| 1102 | ldr r8,[r10,r8,lsl#2] @ Td2[s3>>8] |
| 1103 | mov r3,r3,lsr#24 |
| 1104 | |
| 1105 | ldr r9,[r10,r9,lsl#2] @ Td3[s3>>0] |
| 1106 | eor r0,r0,r7,ror#8 |
| 1107 | ldr r7,[r11],#16 |
| 1108 | eor r1,r1,r8,ror#16 |
| 1109 | ldr r3,[r10,r3,lsl#2] @ Td0[s3>>24] |
| 1110 | eor r2,r2,r9,ror#24 |
| 1111 | |
| 1112 | ldr r4,[r11,#-12] |
| 1113 | eor r0,r0,r7 |
| 1114 | ldr r5,[r11,#-8] |
| 1115 | eor r3,r3,r6,ror#8 |
| 1116 | ldr r6,[r11,#-4] |
| 1117 | and r7,lr,r0,lsr#16 |
| 1118 | eor r1,r1,r4 |
| 1119 | and r8,lr,r0,lsr#8 |
| 1120 | eor r2,r2,r5 |
| 1121 | and r9,lr,r0 |
| 1122 | eor r3,r3,r6 |
| 1123 | mov r0,r0,lsr#24 |
| 1124 | |
| 1125 | subs r12,r12,#1 |
| 1126 | bne .Ldec_loop |
| 1127 | |
| 1128 | add r10,r10,#1024 |
| 1129 | |
| 1130 | ldr r5,[r10,#0] @ prefetch Td4 |
| 1131 | ldr r6,[r10,#32] |
| 1132 | ldr r4,[r10,#64] |
| 1133 | ldr r5,[r10,#96] |
| 1134 | ldr r6,[r10,#128] |
| 1135 | ldr r4,[r10,#160] |
| 1136 | ldr r5,[r10,#192] |
| 1137 | ldr r6,[r10,#224] |
| 1138 | |
| 1139 | ldrb r0,[r10,r0] @ Td4[s0>>24] |
| 1140 | ldrb r4,[r10,r7] @ Td4[s0>>16] |
| 1141 | and r7,lr,r1 @ i0 |
| 1142 | ldrb r5,[r10,r8] @ Td4[s0>>8] |
| 1143 | and r8,lr,r1,lsr#16 |
| 1144 | ldrb r6,[r10,r9] @ Td4[s0>>0] |
| 1145 | and r9,lr,r1,lsr#8 |
| 1146 | |
| 1147 | add r1,r10,r1,lsr#24 |
| 1148 | ldrb r7,[r10,r7] @ Td4[s1>>0] |
| 1149 | ldrb r1,[r1] @ Td4[s1>>24] |
| 1150 | ldrb r8,[r10,r8] @ Td4[s1>>16] |
| 1151 | eor r0,r7,r0,lsl#24 |
| 1152 | ldrb r9,[r10,r9] @ Td4[s1>>8] |
| 1153 | eor r1,r4,r1,lsl#8 |
| 1154 | and r7,lr,r2,lsr#8 @ i0 |
| 1155 | eor r5,r5,r8,lsl#8 |
| 1156 | and r8,lr,r2 @ i1 |
| 1157 | ldrb r7,[r10,r7] @ Td4[s2>>8] |
| 1158 | eor r6,r6,r9,lsl#8 |
| 1159 | ldrb r8,[r10,r8] @ Td4[s2>>0] |
| 1160 | and r9,lr,r2,lsr#16 |
| 1161 | |
| 1162 | add r2,r10,r2,lsr#24 |
| 1163 | ldrb r2,[r2] @ Td4[s2>>24] |
| 1164 | eor r0,r0,r7,lsl#8 |
| 1165 | ldrb r9,[r10,r9] @ Td4[s2>>16] |
| 1166 | eor r1,r8,r1,lsl#16 |
| 1167 | and r7,lr,r3,lsr#16 @ i0 |
| 1168 | eor r2,r5,r2,lsl#16 |
| 1169 | and r8,lr,r3,lsr#8 @ i1 |
| 1170 | ldrb r7,[r10,r7] @ Td4[s3>>16] |
| 1171 | eor r6,r6,r9,lsl#16 |
| 1172 | ldrb r8,[r10,r8] @ Td4[s3>>8] |
| 1173 | and r9,lr,r3 @ i2 |
| 1174 | |
| 1175 | add r3,r10,r3,lsr#24 |
| 1176 | ldrb r9,[r10,r9] @ Td4[s3>>0] |
| 1177 | ldrb r3,[r3] @ Td4[s3>>24] |
| 1178 | eor r0,r0,r7,lsl#16 |
| 1179 | ldr r7,[r11,#0] |
| 1180 | eor r1,r1,r8,lsl#8 |
| 1181 | ldr r4,[r11,#4] |
| 1182 | eor r2,r9,r2,lsl#8 |
| 1183 | ldr r5,[r11,#8] |
| 1184 | eor r3,r6,r3,lsl#24 |
| 1185 | ldr r6,[r11,#12] |
| 1186 | |
| 1187 | eor r0,r0,r7 |
| 1188 | eor r1,r1,r4 |
| 1189 | eor r2,r2,r5 |
| 1190 | eor r3,r3,r6 |
| 1191 | |
| 1192 | sub r10,r10,#1024 |
| 1193 | ldr pc,[sp],#4 @ pop and return |
| 1194 | .size _armv4_AES_decrypt,.-_armv4_AES_decrypt |
Adam Langley | e9ada86 | 2015-05-11 17:20:37 -0700 | [diff] [blame] | 1195 | .byte 65,69,83,32,102,111,114,32,65,82,77,118,52,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0 |
| 1196 | .align 2 |
Adam Langley | d9e397b | 2015-01-22 14:27:53 -0800 | [diff] [blame] | 1197 | .align 2 |
| 1198 | |
| 1199 | #endif |
David Benjamin | 4969cc9 | 2016-04-22 15:02:23 -0400 | [diff] [blame] | 1200 | #endif |