1 #!/usr/bin/env perl 2 3 # ==================================================================== 4 # Written by Andy Polyakov <appro (at] 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 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} 36 open STDOUT,">$output"; 37 38 $s0="r0"; 39 $s1="r1"; 40 $s2="r2"; 41 $s3="r3"; 42 $t1="r4"; 43 $t2="r5"; 44 $t3="r6"; 45 $i1="r7"; 46 $i2="r8"; 47 $i3="r9"; 48 49 $tbl="r10"; 50 $key="r11"; 51 $rounds="r12"; 52 53 $code=<<___; 54 #if defined(__arm__) 55 #ifndef __KERNEL__ 56 # include "arm_arch.h" 57 #else 58 # define __ARM_ARCH__ __LINUX_ARM_ARCH__ 59 #endif 60 61 .text 62 #if __ARM_ARCH__<7 63 .code 32 64 #else 65 .syntax unified 66 # ifdef __thumb2__ 67 .thumb 68 # else 69 .code 32 70 # endif 71 #endif 72 73 .type AES_Te,%object 74 .align 5 75 AES_Te: 76 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d 77 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554 78 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d 79 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a 80 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87 81 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b 82 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea 83 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b 84 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a 85 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f 86 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108 87 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f 88 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e 89 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5 90 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d 91 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f 92 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e 93 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb 94 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce 95 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497 96 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c 97 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed 98 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b 99 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a 100 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16 101 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594 102 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81 103 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3 104 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a 105 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504 106 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163 107 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d 108 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f 109 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739 110 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47 111 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395 112 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f 113 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883 114 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c 115 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76 116 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e 117 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4 118 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6 119 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b 120 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7 121 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0 122 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25 123 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818 124 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72 125 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651 126 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21 127 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85 128 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa 129 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12 130 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0 131 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9 132 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133 133 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7 134 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920 135 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a 136 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17 137 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8 138 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11 139 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a 140 @ Te4[256] 141 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5 142 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76 143 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0 144 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0 145 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc 146 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15 147 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a 148 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75 149 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0 150 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84 151 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b 152 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf 153 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85 154 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8 155 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5 156 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2 157 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17 158 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73 159 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88 160 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb 161 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c 162 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79 163 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9 164 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08 165 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6 166 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a 167 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e 168 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e 169 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94 170 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf 171 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68 172 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 173 @ rcon[] 174 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000 175 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000 176 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0 177 .size AES_Te,.-AES_Te 178 179 @ void asm_AES_encrypt(const unsigned char *in, unsigned char *out, 180 @ const AES_KEY *key) { 181 .global asm_AES_encrypt 182 .hidden asm_AES_encrypt 183 .type asm_AES_encrypt,%function 184 .align 5 185 asm_AES_encrypt: 186 #if __ARM_ARCH__<7 187 sub r3,pc,#8 @ asm_AES_encrypt 188 #else 189 adr r3,asm_AES_encrypt 190 #endif 191 stmdb sp!,{r1,r4-r12,lr} 192 mov $rounds,r0 @ inp 193 mov $key,r2 194 sub $tbl,r3,#asm_AES_encrypt-AES_Te @ Te 195 #if __ARM_ARCH__<7 196 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral 197 ldrb $t1,[$rounds,#2] @ manner... 198 ldrb $t2,[$rounds,#1] 199 ldrb $t3,[$rounds,#0] 200 orr $s0,$s0,$t1,lsl#8 201 ldrb $s1,[$rounds,#7] 202 orr $s0,$s0,$t2,lsl#16 203 ldrb $t1,[$rounds,#6] 204 orr $s0,$s0,$t3,lsl#24 205 ldrb $t2,[$rounds,#5] 206 ldrb $t3,[$rounds,#4] 207 orr $s1,$s1,$t1,lsl#8 208 ldrb $s2,[$rounds,#11] 209 orr $s1,$s1,$t2,lsl#16 210 ldrb $t1,[$rounds,#10] 211 orr $s1,$s1,$t3,lsl#24 212 ldrb $t2,[$rounds,#9] 213 ldrb $t3,[$rounds,#8] 214 orr $s2,$s2,$t1,lsl#8 215 ldrb $s3,[$rounds,#15] 216 orr $s2,$s2,$t2,lsl#16 217 ldrb $t1,[$rounds,#14] 218 orr $s2,$s2,$t3,lsl#24 219 ldrb $t2,[$rounds,#13] 220 ldrb $t3,[$rounds,#12] 221 orr $s3,$s3,$t1,lsl#8 222 orr $s3,$s3,$t2,lsl#16 223 orr $s3,$s3,$t3,lsl#24 224 #else 225 ldr $s0,[$rounds,#0] 226 ldr $s1,[$rounds,#4] 227 ldr $s2,[$rounds,#8] 228 ldr $s3,[$rounds,#12] 229 #ifdef __ARMEL__ 230 rev $s0,$s0 231 rev $s1,$s1 232 rev $s2,$s2 233 rev $s3,$s3 234 #endif 235 #endif 236 bl _armv4_AES_encrypt 237 238 ldr $rounds,[sp],#4 @ pop out 239 #if __ARM_ARCH__>=7 240 #ifdef __ARMEL__ 241 rev $s0,$s0 242 rev $s1,$s1 243 rev $s2,$s2 244 rev $s3,$s3 245 #endif 246 str $s0,[$rounds,#0] 247 str $s1,[$rounds,#4] 248 str $s2,[$rounds,#8] 249 str $s3,[$rounds,#12] 250 #else 251 mov $t1,$s0,lsr#24 @ write output in endian-neutral 252 mov $t2,$s0,lsr#16 @ manner... 253 mov $t3,$s0,lsr#8 254 strb $t1,[$rounds,#0] 255 strb $t2,[$rounds,#1] 256 mov $t1,$s1,lsr#24 257 strb $t3,[$rounds,#2] 258 mov $t2,$s1,lsr#16 259 strb $s0,[$rounds,#3] 260 mov $t3,$s1,lsr#8 261 strb $t1,[$rounds,#4] 262 strb $t2,[$rounds,#5] 263 mov $t1,$s2,lsr#24 264 strb $t3,[$rounds,#6] 265 mov $t2,$s2,lsr#16 266 strb $s1,[$rounds,#7] 267 mov $t3,$s2,lsr#8 268 strb $t1,[$rounds,#8] 269 strb $t2,[$rounds,#9] 270 mov $t1,$s3,lsr#24 271 strb $t3,[$rounds,#10] 272 mov $t2,$s3,lsr#16 273 strb $s2,[$rounds,#11] 274 mov $t3,$s3,lsr#8 275 strb $t1,[$rounds,#12] 276 strb $t2,[$rounds,#13] 277 strb $t3,[$rounds,#14] 278 strb $s3,[$rounds,#15] 279 #endif 280 #if __ARM_ARCH__>=5 281 ldmia sp!,{r4-r12,pc} 282 #else 283 ldmia sp!,{r4-r12,lr} 284 tst lr,#1 285 moveq pc,lr @ be binary compatible with V4, yet 286 bx lr @ interoperable with Thumb ISA:-) 287 #endif 288 .size asm_AES_encrypt,.-asm_AES_encrypt 289 290 .type _armv4_AES_encrypt,%function 291 .align 2 292 _armv4_AES_encrypt: 293 str lr,[sp,#-4]! @ push lr 294 ldmia $key!,{$t1-$i1} 295 eor $s0,$s0,$t1 296 ldr $rounds,[$key,#240-16] 297 eor $s1,$s1,$t2 298 eor $s2,$s2,$t3 299 eor $s3,$s3,$i1 300 sub $rounds,$rounds,#1 301 mov lr,#255 302 303 and $i1,lr,$s0 304 and $i2,lr,$s0,lsr#8 305 and $i3,lr,$s0,lsr#16 306 mov $s0,$s0,lsr#24 307 .Lenc_loop: 308 ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0] 309 and $i1,lr,$s1,lsr#16 @ i0 310 ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8] 311 and $i2,lr,$s1 312 ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16] 313 and $i3,lr,$s1,lsr#8 314 ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24] 315 mov $s1,$s1,lsr#24 316 317 ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16] 318 ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0] 319 ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8] 320 eor $s0,$s0,$i1,ror#8 321 ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24] 322 and $i1,lr,$s2,lsr#8 @ i0 323 eor $t2,$t2,$i2,ror#8 324 and $i2,lr,$s2,lsr#16 @ i1 325 eor $t3,$t3,$i3,ror#8 326 and $i3,lr,$s2 327 ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8] 328 eor $s1,$s1,$t1,ror#24 329 ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16] 330 mov $s2,$s2,lsr#24 331 332 ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0] 333 eor $s0,$s0,$i1,ror#16 334 ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24] 335 and $i1,lr,$s3 @ i0 336 eor $s1,$s1,$i2,ror#8 337 and $i2,lr,$s3,lsr#8 @ i1 338 eor $t3,$t3,$i3,ror#16 339 and $i3,lr,$s3,lsr#16 @ i2 340 ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0] 341 eor $s2,$s2,$t2,ror#16 342 ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8] 343 mov $s3,$s3,lsr#24 344 345 ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16] 346 eor $s0,$s0,$i1,ror#24 347 ldr $i1,[$key],#16 348 eor $s1,$s1,$i2,ror#16 349 ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24] 350 eor $s2,$s2,$i3,ror#8 351 ldr $t1,[$key,#-12] 352 eor $s3,$s3,$t3,ror#8 353 354 ldr $t2,[$key,#-8] 355 eor $s0,$s0,$i1 356 ldr $t3,[$key,#-4] 357 and $i1,lr,$s0 358 eor $s1,$s1,$t1 359 and $i2,lr,$s0,lsr#8 360 eor $s2,$s2,$t2 361 and $i3,lr,$s0,lsr#16 362 eor $s3,$s3,$t3 363 mov $s0,$s0,lsr#24 364 365 subs $rounds,$rounds,#1 366 bne .Lenc_loop 367 368 add $tbl,$tbl,#2 369 370 ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0] 371 and $i1,lr,$s1,lsr#16 @ i0 372 ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8] 373 and $i2,lr,$s1 374 ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16] 375 and $i3,lr,$s1,lsr#8 376 ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24] 377 mov $s1,$s1,lsr#24 378 379 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16] 380 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0] 381 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8] 382 eor $s0,$i1,$s0,lsl#8 383 ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24] 384 and $i1,lr,$s2,lsr#8 @ i0 385 eor $t2,$i2,$t2,lsl#8 386 and $i2,lr,$s2,lsr#16 @ i1 387 eor $t3,$i3,$t3,lsl#8 388 and $i3,lr,$s2 389 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8] 390 eor $s1,$t1,$s1,lsl#24 391 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16] 392 mov $s2,$s2,lsr#24 393 394 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0] 395 eor $s0,$i1,$s0,lsl#8 396 ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24] 397 and $i1,lr,$s3 @ i0 398 eor $s1,$s1,$i2,lsl#16 399 and $i2,lr,$s3,lsr#8 @ i1 400 eor $t3,$i3,$t3,lsl#8 401 and $i3,lr,$s3,lsr#16 @ i2 402 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0] 403 eor $s2,$t2,$s2,lsl#24 404 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8] 405 mov $s3,$s3,lsr#24 406 407 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16] 408 eor $s0,$i1,$s0,lsl#8 409 ldr $i1,[$key,#0] 410 ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24] 411 eor $s1,$s1,$i2,lsl#8 412 ldr $t1,[$key,#4] 413 eor $s2,$s2,$i3,lsl#16 414 ldr $t2,[$key,#8] 415 eor $s3,$t3,$s3,lsl#24 416 ldr $t3,[$key,#12] 417 418 eor $s0,$s0,$i1 419 eor $s1,$s1,$t1 420 eor $s2,$s2,$t2 421 eor $s3,$s3,$t3 422 423 sub $tbl,$tbl,#2 424 ldr pc,[sp],#4 @ pop and return 425 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt 426 427 .global asm_AES_set_encrypt_key 428 .hidden asm_AES_set_encrypt_key 429 .type asm_AES_set_encrypt_key,%function 430 .align 5 431 asm_AES_set_encrypt_key: 432 _armv4_AES_set_encrypt_key: 433 #if __ARM_ARCH__<7 434 sub r3,pc,#8 @ asm_AES_set_encrypt_key 435 #else 436 adr r3,asm_AES_set_encrypt_key 437 #endif 438 teq r0,#0 439 #if __ARM_ARCH__>=7 440 itt eq @ Thumb2 thing, sanity check in ARM 441 #endif 442 moveq r0,#-1 443 beq .Labrt 444 teq r2,#0 445 #if __ARM_ARCH__>=7 446 itt eq @ Thumb2 thing, sanity check in ARM 447 #endif 448 moveq r0,#-1 449 beq .Labrt 450 451 teq r1,#128 452 beq .Lok 453 teq r1,#192 454 beq .Lok 455 teq r1,#256 456 #if __ARM_ARCH__>=7 457 itt ne @ Thumb2 thing, sanity check in ARM 458 #endif 459 movne r0,#-1 460 bne .Labrt 461 462 .Lok: stmdb sp!,{r4-r12,lr} 463 sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4 464 465 mov $rounds,r0 @ inp 466 mov lr,r1 @ bits 467 mov $key,r2 @ key 468 469 #if __ARM_ARCH__<7 470 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral 471 ldrb $t1,[$rounds,#2] @ manner... 472 ldrb $t2,[$rounds,#1] 473 ldrb $t3,[$rounds,#0] 474 orr $s0,$s0,$t1,lsl#8 475 ldrb $s1,[$rounds,#7] 476 orr $s0,$s0,$t2,lsl#16 477 ldrb $t1,[$rounds,#6] 478 orr $s0,$s0,$t3,lsl#24 479 ldrb $t2,[$rounds,#5] 480 ldrb $t3,[$rounds,#4] 481 orr $s1,$s1,$t1,lsl#8 482 ldrb $s2,[$rounds,#11] 483 orr $s1,$s1,$t2,lsl#16 484 ldrb $t1,[$rounds,#10] 485 orr $s1,$s1,$t3,lsl#24 486 ldrb $t2,[$rounds,#9] 487 ldrb $t3,[$rounds,#8] 488 orr $s2,$s2,$t1,lsl#8 489 ldrb $s3,[$rounds,#15] 490 orr $s2,$s2,$t2,lsl#16 491 ldrb $t1,[$rounds,#14] 492 orr $s2,$s2,$t3,lsl#24 493 ldrb $t2,[$rounds,#13] 494 ldrb $t3,[$rounds,#12] 495 orr $s3,$s3,$t1,lsl#8 496 str $s0,[$key],#16 497 orr $s3,$s3,$t2,lsl#16 498 str $s1,[$key,#-12] 499 orr $s3,$s3,$t3,lsl#24 500 str $s2,[$key,#-8] 501 str $s3,[$key,#-4] 502 #else 503 ldr $s0,[$rounds,#0] 504 ldr $s1,[$rounds,#4] 505 ldr $s2,[$rounds,#8] 506 ldr $s3,[$rounds,#12] 507 #ifdef __ARMEL__ 508 rev $s0,$s0 509 rev $s1,$s1 510 rev $s2,$s2 511 rev $s3,$s3 512 #endif 513 str $s0,[$key],#16 514 str $s1,[$key,#-12] 515 str $s2,[$key,#-8] 516 str $s3,[$key,#-4] 517 #endif 518 519 teq lr,#128 520 bne .Lnot128 521 mov $rounds,#10 522 str $rounds,[$key,#240-16] 523 add $t3,$tbl,#256 @ rcon 524 mov lr,#255 525 526 .L128_loop: 527 and $t2,lr,$s3,lsr#24 528 and $i1,lr,$s3,lsr#16 529 ldrb $t2,[$tbl,$t2] 530 and $i2,lr,$s3,lsr#8 531 ldrb $i1,[$tbl,$i1] 532 and $i3,lr,$s3 533 ldrb $i2,[$tbl,$i2] 534 orr $t2,$t2,$i1,lsl#24 535 ldrb $i3,[$tbl,$i3] 536 orr $t2,$t2,$i2,lsl#16 537 ldr $t1,[$t3],#4 @ rcon[i++] 538 orr $t2,$t2,$i3,lsl#8 539 eor $t2,$t2,$t1 540 eor $s0,$s0,$t2 @ rk[4]=rk[0]^... 541 eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4] 542 str $s0,[$key],#16 543 eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5] 544 str $s1,[$key,#-12] 545 eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6] 546 str $s2,[$key,#-8] 547 subs $rounds,$rounds,#1 548 str $s3,[$key,#-4] 549 bne .L128_loop 550 sub r2,$key,#176 551 b .Ldone 552 553 .Lnot128: 554 #if __ARM_ARCH__<7 555 ldrb $i2,[$rounds,#19] 556 ldrb $t1,[$rounds,#18] 557 ldrb $t2,[$rounds,#17] 558 ldrb $t3,[$rounds,#16] 559 orr $i2,$i2,$t1,lsl#8 560 ldrb $i3,[$rounds,#23] 561 orr $i2,$i2,$t2,lsl#16 562 ldrb $t1,[$rounds,#22] 563 orr $i2,$i2,$t3,lsl#24 564 ldrb $t2,[$rounds,#21] 565 ldrb $t3,[$rounds,#20] 566 orr $i3,$i3,$t1,lsl#8 567 orr $i3,$i3,$t2,lsl#16 568 str $i2,[$key],#8 569 orr $i3,$i3,$t3,lsl#24 570 str $i3,[$key,#-4] 571 #else 572 ldr $i2,[$rounds,#16] 573 ldr $i3,[$rounds,#20] 574 #ifdef __ARMEL__ 575 rev $i2,$i2 576 rev $i3,$i3 577 #endif 578 str $i2,[$key],#8 579 str $i3,[$key,#-4] 580 #endif 581 582 teq lr,#192 583 bne .Lnot192 584 mov $rounds,#12 585 str $rounds,[$key,#240-24] 586 add $t3,$tbl,#256 @ rcon 587 mov lr,#255 588 mov $rounds,#8 589 590 .L192_loop: 591 and $t2,lr,$i3,lsr#24 592 and $i1,lr,$i3,lsr#16 593 ldrb $t2,[$tbl,$t2] 594 and $i2,lr,$i3,lsr#8 595 ldrb $i1,[$tbl,$i1] 596 and $i3,lr,$i3 597 ldrb $i2,[$tbl,$i2] 598 orr $t2,$t2,$i1,lsl#24 599 ldrb $i3,[$tbl,$i3] 600 orr $t2,$t2,$i2,lsl#16 601 ldr $t1,[$t3],#4 @ rcon[i++] 602 orr $t2,$t2,$i3,lsl#8 603 eor $i3,$t2,$t1 604 eor $s0,$s0,$i3 @ rk[6]=rk[0]^... 605 eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6] 606 str $s0,[$key],#24 607 eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7] 608 str $s1,[$key,#-20] 609 eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8] 610 str $s2,[$key,#-16] 611 subs $rounds,$rounds,#1 612 str $s3,[$key,#-12] 613 #if __ARM_ARCH__>=7 614 itt eq @ Thumb2 thing, sanity check in ARM 615 #endif 616 subeq r2,$key,#216 617 beq .Ldone 618 619 ldr $i1,[$key,#-32] 620 ldr $i2,[$key,#-28] 621 eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9] 622 eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10] 623 str $i1,[$key,#-8] 624 str $i3,[$key,#-4] 625 b .L192_loop 626 627 .Lnot192: 628 #if __ARM_ARCH__<7 629 ldrb $i2,[$rounds,#27] 630 ldrb $t1,[$rounds,#26] 631 ldrb $t2,[$rounds,#25] 632 ldrb $t3,[$rounds,#24] 633 orr $i2,$i2,$t1,lsl#8 634 ldrb $i3,[$rounds,#31] 635 orr $i2,$i2,$t2,lsl#16 636 ldrb $t1,[$rounds,#30] 637 orr $i2,$i2,$t3,lsl#24 638 ldrb $t2,[$rounds,#29] 639 ldrb $t3,[$rounds,#28] 640 orr $i3,$i3,$t1,lsl#8 641 orr $i3,$i3,$t2,lsl#16 642 str $i2,[$key],#8 643 orr $i3,$i3,$t3,lsl#24 644 str $i3,[$key,#-4] 645 #else 646 ldr $i2,[$rounds,#24] 647 ldr $i3,[$rounds,#28] 648 #ifdef __ARMEL__ 649 rev $i2,$i2 650 rev $i3,$i3 651 #endif 652 str $i2,[$key],#8 653 str $i3,[$key,#-4] 654 #endif 655 656 mov $rounds,#14 657 str $rounds,[$key,#240-32] 658 add $t3,$tbl,#256 @ rcon 659 mov lr,#255 660 mov $rounds,#7 661 662 .L256_loop: 663 and $t2,lr,$i3,lsr#24 664 and $i1,lr,$i3,lsr#16 665 ldrb $t2,[$tbl,$t2] 666 and $i2,lr,$i3,lsr#8 667 ldrb $i1,[$tbl,$i1] 668 and $i3,lr,$i3 669 ldrb $i2,[$tbl,$i2] 670 orr $t2,$t2,$i1,lsl#24 671 ldrb $i3,[$tbl,$i3] 672 orr $t2,$t2,$i2,lsl#16 673 ldr $t1,[$t3],#4 @ rcon[i++] 674 orr $t2,$t2,$i3,lsl#8 675 eor $i3,$t2,$t1 676 eor $s0,$s0,$i3 @ rk[8]=rk[0]^... 677 eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8] 678 str $s0,[$key],#32 679 eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9] 680 str $s1,[$key,#-28] 681 eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10] 682 str $s2,[$key,#-24] 683 subs $rounds,$rounds,#1 684 str $s3,[$key,#-20] 685 #if __ARM_ARCH__>=7 686 itt eq @ Thumb2 thing, sanity check in ARM 687 #endif 688 subeq r2,$key,#256 689 beq .Ldone 690 691 and $t2,lr,$s3 692 and $i1,lr,$s3,lsr#8 693 ldrb $t2,[$tbl,$t2] 694 and $i2,lr,$s3,lsr#16 695 ldrb $i1,[$tbl,$i1] 696 and $i3,lr,$s3,lsr#24 697 ldrb $i2,[$tbl,$i2] 698 orr $t2,$t2,$i1,lsl#8 699 ldrb $i3,[$tbl,$i3] 700 orr $t2,$t2,$i2,lsl#16 701 ldr $t1,[$key,#-48] 702 orr $t2,$t2,$i3,lsl#24 703 704 ldr $i1,[$key,#-44] 705 ldr $i2,[$key,#-40] 706 eor $t1,$t1,$t2 @ rk[12]=rk[4]^... 707 ldr $i3,[$key,#-36] 708 eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12] 709 str $t1,[$key,#-16] 710 eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13] 711 str $i1,[$key,#-12] 712 eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14] 713 str $i2,[$key,#-8] 714 str $i3,[$key,#-4] 715 b .L256_loop 716 717 .align 2 718 .Ldone: mov r0,#0 719 ldmia sp!,{r4-r12,lr} 720 .Labrt: 721 #if defined(__thumb2__) && __ARM_ARCH__>=7 722 .short 0x4770 @ bx lr in Thumb2 encoding 723 #else 724 tst lr,#1 725 moveq pc,lr @ be binary compatible with V4, yet 726 bx lr @ interoperable with Thumb ISA:-) 727 #endif 728 .size asm_AES_set_encrypt_key,.-asm_AES_set_encrypt_key 729 730 .global asm_AES_set_decrypt_key 731 .hidden asm_AES_set_decrypt_key 732 .type asm_AES_set_decrypt_key,%function 733 .align 5 734 asm_AES_set_decrypt_key: 735 str lr,[sp,#-4]! @ push lr 736 bl _armv4_AES_set_encrypt_key 737 teq r0,#0 738 ldr lr,[sp],#4 @ pop lr 739 bne .Labrt 740 741 mov r0,r2 @ asm_AES_set_encrypt_key preserves r2, 742 mov r1,r2 @ which is AES_KEY *key 743 b _armv4_AES_set_enc2dec_key 744 .size asm_AES_set_decrypt_key,.-asm_AES_set_decrypt_key 745 746 @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out) 747 .global AES_set_enc2dec_key 748 .hidden AES_set_enc2dec_key 749 .type AES_set_enc2dec_key,%function 750 .align 5 751 AES_set_enc2dec_key: 752 _armv4_AES_set_enc2dec_key: 753 stmdb sp!,{r4-r12,lr} 754 755 ldr $rounds,[r0,#240] 756 mov $i1,r0 @ input 757 add $i2,r0,$rounds,lsl#4 758 mov $key,r1 @ ouput 759 add $tbl,r1,$rounds,lsl#4 760 str $rounds,[r1,#240] 761 762 .Linv: ldr $s0,[$i1],#16 763 ldr $s1,[$i1,#-12] 764 ldr $s2,[$i1,#-8] 765 ldr $s3,[$i1,#-4] 766 ldr $t1,[$i2],#-16 767 ldr $t2,[$i2,#16+4] 768 ldr $t3,[$i2,#16+8] 769 ldr $i3,[$i2,#16+12] 770 str $s0,[$tbl],#-16 771 str $s1,[$tbl,#16+4] 772 str $s2,[$tbl,#16+8] 773 str $s3,[$tbl,#16+12] 774 str $t1,[$key],#16 775 str $t2,[$key,#-12] 776 str $t3,[$key,#-8] 777 str $i3,[$key,#-4] 778 teq $i1,$i2 779 bne .Linv 780 781 ldr $s0,[$i1] 782 ldr $s1,[$i1,#4] 783 ldr $s2,[$i1,#8] 784 ldr $s3,[$i1,#12] 785 str $s0,[$key] 786 str $s1,[$key,#4] 787 str $s2,[$key,#8] 788 str $s3,[$key,#12] 789 sub $key,$key,$rounds,lsl#3 790 ___ 791 $mask80=$i1; 792 $mask1b=$i2; 793 $mask7f=$i3; 794 $code.=<<___; 795 ldr $s0,[$key,#16]! @ prefetch tp1 796 mov $mask80,#0x80 797 mov $mask1b,#0x1b 798 orr $mask80,$mask80,#0x8000 799 orr $mask1b,$mask1b,#0x1b00 800 orr $mask80,$mask80,$mask80,lsl#16 801 orr $mask1b,$mask1b,$mask1b,lsl#16 802 sub $rounds,$rounds,#1 803 mvn $mask7f,$mask80 804 mov $rounds,$rounds,lsl#2 @ (rounds-1)*4 805 806 .Lmix: and $t1,$s0,$mask80 807 and $s1,$s0,$mask7f 808 sub $t1,$t1,$t1,lsr#7 809 and $t1,$t1,$mask1b 810 eor $s1,$t1,$s1,lsl#1 @ tp2 811 812 and $t1,$s1,$mask80 813 and $s2,$s1,$mask7f 814 sub $t1,$t1,$t1,lsr#7 815 and $t1,$t1,$mask1b 816 eor $s2,$t1,$s2,lsl#1 @ tp4 817 818 and $t1,$s2,$mask80 819 and $s3,$s2,$mask7f 820 sub $t1,$t1,$t1,lsr#7 821 and $t1,$t1,$mask1b 822 eor $s3,$t1,$s3,lsl#1 @ tp8 823 824 eor $t1,$s1,$s2 825 eor $t2,$s0,$s3 @ tp9 826 eor $t1,$t1,$s3 @ tpe 827 eor $t1,$t1,$s1,ror#24 828 eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8) 829 eor $t1,$t1,$s2,ror#16 830 eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16) 831 eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24) 832 833 ldr $s0,[$key,#4] @ prefetch tp1 834 str $t1,[$key],#4 835 subs $rounds,$rounds,#1 836 bne .Lmix 837 838 mov r0,#0 839 #if __ARM_ARCH__>=5 840 ldmia sp!,{r4-r12,pc} 841 #else 842 ldmia sp!,{r4-r12,lr} 843 tst lr,#1 844 moveq pc,lr @ be binary compatible with V4, yet 845 bx lr @ interoperable with Thumb ISA:-) 846 #endif 847 .size AES_set_enc2dec_key,.-AES_set_enc2dec_key 848 849 .type AES_Td,%object 850 .align 5 851 AES_Td: 852 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96 853 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393 854 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25 855 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f 856 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1 857 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6 858 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da 859 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844 860 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd 861 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4 862 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45 863 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94 864 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7 865 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a 866 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5 867 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c 868 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1 869 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a 870 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75 871 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051 872 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46 873 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff 874 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77 875 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb 876 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000 877 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e 878 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927 879 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a 880 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e 881 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16 882 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d 883 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8 884 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd 885 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34 886 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163 887 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120 888 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d 889 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0 890 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422 891 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef 892 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36 893 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4 894 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662 895 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5 896 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3 897 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b 898 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8 899 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6 900 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6 901 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0 902 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815 903 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f 904 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df 905 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f 906 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e 907 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713 908 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89 909 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c 910 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf 911 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86 912 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f 913 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541 914 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190 915 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 916 @ Td4[256] 917 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38 918 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb 919 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87 920 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb 921 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d 922 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e 923 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2 924 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25 925 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16 926 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92 927 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda 928 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84 929 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a 930 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06 931 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02 932 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b 933 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea 934 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73 935 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85 936 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e 937 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89 938 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b 939 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20 940 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4 941 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31 942 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f 943 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d 944 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef 945 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0 946 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61 947 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26 948 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d 949 .size AES_Td,.-AES_Td 950 951 @ void asm_AES_decrypt(const unsigned char *in, unsigned char *out, 952 @ const AES_KEY *key) { 953 .global asm_AES_decrypt 954 .hidden asm_AES_decrypt 955 .type asm_AES_decrypt,%function 956 .align 5 957 asm_AES_decrypt: 958 #if __ARM_ARCH__<7 959 sub r3,pc,#8 @ asm_AES_decrypt 960 #else 961 adr r3,asm_AES_decrypt 962 #endif 963 stmdb sp!,{r1,r4-r12,lr} 964 mov $rounds,r0 @ inp 965 mov $key,r2 966 sub $tbl,r3,#asm_AES_decrypt-AES_Td @ Td 967 #if __ARM_ARCH__<7 968 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral 969 ldrb $t1,[$rounds,#2] @ manner... 970 ldrb $t2,[$rounds,#1] 971 ldrb $t3,[$rounds,#0] 972 orr $s0,$s0,$t1,lsl#8 973 ldrb $s1,[$rounds,#7] 974 orr $s0,$s0,$t2,lsl#16 975 ldrb $t1,[$rounds,#6] 976 orr $s0,$s0,$t3,lsl#24 977 ldrb $t2,[$rounds,#5] 978 ldrb $t3,[$rounds,#4] 979 orr $s1,$s1,$t1,lsl#8 980 ldrb $s2,[$rounds,#11] 981 orr $s1,$s1,$t2,lsl#16 982 ldrb $t1,[$rounds,#10] 983 orr $s1,$s1,$t3,lsl#24 984 ldrb $t2,[$rounds,#9] 985 ldrb $t3,[$rounds,#8] 986 orr $s2,$s2,$t1,lsl#8 987 ldrb $s3,[$rounds,#15] 988 orr $s2,$s2,$t2,lsl#16 989 ldrb $t1,[$rounds,#14] 990 orr $s2,$s2,$t3,lsl#24 991 ldrb $t2,[$rounds,#13] 992 ldrb $t3,[$rounds,#12] 993 orr $s3,$s3,$t1,lsl#8 994 orr $s3,$s3,$t2,lsl#16 995 orr $s3,$s3,$t3,lsl#24 996 #else 997 ldr $s0,[$rounds,#0] 998 ldr $s1,[$rounds,#4] 999 ldr $s2,[$rounds,#8] 1000 ldr $s3,[$rounds,#12] 1001 #ifdef __ARMEL__ 1002 rev $s0,$s0 1003 rev $s1,$s1 1004 rev $s2,$s2 1005 rev $s3,$s3 1006 #endif 1007 #endif 1008 bl _armv4_AES_decrypt 1009 1010 ldr $rounds,[sp],#4 @ pop out 1011 #if __ARM_ARCH__>=7 1012 #ifdef __ARMEL__ 1013 rev $s0,$s0 1014 rev $s1,$s1 1015 rev $s2,$s2 1016 rev $s3,$s3 1017 #endif 1018 str $s0,[$rounds,#0] 1019 str $s1,[$rounds,#4] 1020 str $s2,[$rounds,#8] 1021 str $s3,[$rounds,#12] 1022 #else 1023 mov $t1,$s0,lsr#24 @ write output in endian-neutral 1024 mov $t2,$s0,lsr#16 @ manner... 1025 mov $t3,$s0,lsr#8 1026 strb $t1,[$rounds,#0] 1027 strb $t2,[$rounds,#1] 1028 mov $t1,$s1,lsr#24 1029 strb $t3,[$rounds,#2] 1030 mov $t2,$s1,lsr#16 1031 strb $s0,[$rounds,#3] 1032 mov $t3,$s1,lsr#8 1033 strb $t1,[$rounds,#4] 1034 strb $t2,[$rounds,#5] 1035 mov $t1,$s2,lsr#24 1036 strb $t3,[$rounds,#6] 1037 mov $t2,$s2,lsr#16 1038 strb $s1,[$rounds,#7] 1039 mov $t3,$s2,lsr#8 1040 strb $t1,[$rounds,#8] 1041 strb $t2,[$rounds,#9] 1042 mov $t1,$s3,lsr#24 1043 strb $t3,[$rounds,#10] 1044 mov $t2,$s3,lsr#16 1045 strb $s2,[$rounds,#11] 1046 mov $t3,$s3,lsr#8 1047 strb $t1,[$rounds,#12] 1048 strb $t2,[$rounds,#13] 1049 strb $t3,[$rounds,#14] 1050 strb $s3,[$rounds,#15] 1051 #endif 1052 #if __ARM_ARCH__>=5 1053 ldmia sp!,{r4-r12,pc} 1054 #else 1055 ldmia sp!,{r4-r12,lr} 1056 tst lr,#1 1057 moveq pc,lr @ be binary compatible with V4, yet 1058 bx lr @ interoperable with Thumb ISA:-) 1059 #endif 1060 .size asm_AES_decrypt,.-asm_AES_decrypt 1061 1062 .type _armv4_AES_decrypt,%function 1063 .align 2 1064 _armv4_AES_decrypt: 1065 str lr,[sp,#-4]! @ push lr 1066 ldmia $key!,{$t1-$i1} 1067 eor $s0,$s0,$t1 1068 ldr $rounds,[$key,#240-16] 1069 eor $s1,$s1,$t2 1070 eor $s2,$s2,$t3 1071 eor $s3,$s3,$i1 1072 sub $rounds,$rounds,#1 1073 mov lr,#255 1074 1075 and $i1,lr,$s0,lsr#16 1076 and $i2,lr,$s0,lsr#8 1077 and $i3,lr,$s0 1078 mov $s0,$s0,lsr#24 1079 .Ldec_loop: 1080 ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16] 1081 and $i1,lr,$s1 @ i0 1082 ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8] 1083 and $i2,lr,$s1,lsr#16 1084 ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0] 1085 and $i3,lr,$s1,lsr#8 1086 ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24] 1087 mov $s1,$s1,lsr#24 1088 1089 ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0] 1090 ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16] 1091 ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8] 1092 eor $s0,$s0,$i1,ror#24 1093 ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24] 1094 and $i1,lr,$s2,lsr#8 @ i0 1095 eor $t2,$i2,$t2,ror#8 1096 and $i2,lr,$s2 @ i1 1097 eor $t3,$i3,$t3,ror#8 1098 and $i3,lr,$s2,lsr#16 1099 ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8] 1100 eor $s1,$s1,$t1,ror#8 1101 ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0] 1102 mov $s2,$s2,lsr#24 1103 1104 ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16] 1105 eor $s0,$s0,$i1,ror#16 1106 ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24] 1107 and $i1,lr,$s3,lsr#16 @ i0 1108 eor $s1,$s1,$i2,ror#24 1109 and $i2,lr,$s3,lsr#8 @ i1 1110 eor $t3,$i3,$t3,ror#8 1111 and $i3,lr,$s3 @ i2 1112 ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16] 1113 eor $s2,$s2,$t2,ror#8 1114 ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8] 1115 mov $s3,$s3,lsr#24 1116 1117 ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0] 1118 eor $s0,$s0,$i1,ror#8 1119 ldr $i1,[$key],#16 1120 eor $s1,$s1,$i2,ror#16 1121 ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24] 1122 eor $s2,$s2,$i3,ror#24 1123 1124 ldr $t1,[$key,#-12] 1125 eor $s0,$s0,$i1 1126 ldr $t2,[$key,#-8] 1127 eor $s3,$s3,$t3,ror#8 1128 ldr $t3,[$key,#-4] 1129 and $i1,lr,$s0,lsr#16 1130 eor $s1,$s1,$t1 1131 and $i2,lr,$s0,lsr#8 1132 eor $s2,$s2,$t2 1133 and $i3,lr,$s0 1134 eor $s3,$s3,$t3 1135 mov $s0,$s0,lsr#24 1136 1137 subs $rounds,$rounds,#1 1138 bne .Ldec_loop 1139 1140 add $tbl,$tbl,#1024 1141 1142 ldr $t2,[$tbl,#0] @ prefetch Td4 1143 ldr $t3,[$tbl,#32] 1144 ldr $t1,[$tbl,#64] 1145 ldr $t2,[$tbl,#96] 1146 ldr $t3,[$tbl,#128] 1147 ldr $t1,[$tbl,#160] 1148 ldr $t2,[$tbl,#192] 1149 ldr $t3,[$tbl,#224] 1150 1151 ldrb $s0,[$tbl,$s0] @ Td4[s0>>24] 1152 ldrb $t1,[$tbl,$i1] @ Td4[s0>>16] 1153 and $i1,lr,$s1 @ i0 1154 ldrb $t2,[$tbl,$i2] @ Td4[s0>>8] 1155 and $i2,lr,$s1,lsr#16 1156 ldrb $t3,[$tbl,$i3] @ Td4[s0>>0] 1157 and $i3,lr,$s1,lsr#8 1158 1159 add $s1,$tbl,$s1,lsr#24 1160 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0] 1161 ldrb $s1,[$s1] @ Td4[s1>>24] 1162 ldrb $i2,[$tbl,$i2] @ Td4[s1>>16] 1163 eor $s0,$i1,$s0,lsl#24 1164 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8] 1165 eor $s1,$t1,$s1,lsl#8 1166 and $i1,lr,$s2,lsr#8 @ i0 1167 eor $t2,$t2,$i2,lsl#8 1168 and $i2,lr,$s2 @ i1 1169 ldrb $i1,[$tbl,$i1] @ Td4[s2>>8] 1170 eor $t3,$t3,$i3,lsl#8 1171 ldrb $i2,[$tbl,$i2] @ Td4[s2>>0] 1172 and $i3,lr,$s2,lsr#16 1173 1174 add $s2,$tbl,$s2,lsr#24 1175 ldrb $s2,[$s2] @ Td4[s2>>24] 1176 eor $s0,$s0,$i1,lsl#8 1177 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16] 1178 eor $s1,$i2,$s1,lsl#16 1179 and $i1,lr,$s3,lsr#16 @ i0 1180 eor $s2,$t2,$s2,lsl#16 1181 and $i2,lr,$s3,lsr#8 @ i1 1182 ldrb $i1,[$tbl,$i1] @ Td4[s3>>16] 1183 eor $t3,$t3,$i3,lsl#16 1184 ldrb $i2,[$tbl,$i2] @ Td4[s3>>8] 1185 and $i3,lr,$s3 @ i2 1186 1187 add $s3,$tbl,$s3,lsr#24 1188 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0] 1189 ldrb $s3,[$s3] @ Td4[s3>>24] 1190 eor $s0,$s0,$i1,lsl#16 1191 ldr $i1,[$key,#0] 1192 eor $s1,$s1,$i2,lsl#8 1193 ldr $t1,[$key,#4] 1194 eor $s2,$i3,$s2,lsl#8 1195 ldr $t2,[$key,#8] 1196 eor $s3,$t3,$s3,lsl#24 1197 ldr $t3,[$key,#12] 1198 1199 eor $s0,$s0,$i1 1200 eor $s1,$s1,$t1 1201 eor $s2,$s2,$t2 1202 eor $s3,$s3,$t3 1203 1204 sub $tbl,$tbl,#1024 1205 ldr pc,[sp],#4 @ pop and return 1206 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt 1207 .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" 1208 .align 2 1209 1210 #endif 1211 ___ 1212 1213 $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 1214 1215 open SELF,$0; 1216 while(<SELF>) { 1217 next if (/^#!/); 1218 last if (!s/^#/@/ and !/^$/); 1219 print; 1220 } 1221 close SELF; 1222 1223 print $code; 1224 close STDOUT; # enforce flush 1225