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