| #!/usr/bin/env perl |
| |
| # ==================================================================== |
| # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
| # project. The module is, however, dual licensed under OpenSSL and |
| # CRYPTOGAMS licenses depending on where you obtain it. For further |
| # details see http://www.openssl.org/~appro/cryptogams/. |
| # ==================================================================== |
| |
| # AES for ARMv4 |
| |
| # January 2007. |
| # |
| # Code uses single 1K S-box and is >2 times faster than code generated |
| # by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which |
| # allows to merge logical or arithmetic operation with shift or rotate |
| # in one instruction and emit combined result every cycle. The module |
| # is endian-neutral. The performance is ~42 cycles/byte for 128-bit |
| # key [on single-issue Xscale PXA250 core]. |
| |
| # May 2007. |
| # |
| # AES_set_[en|de]crypt_key is added. |
| |
| # July 2010. |
| # |
| # Rescheduling for dual-issue pipeline resulted in 12% improvement on |
| # Cortex A8 core and ~25 cycles per byte processed with 128-bit key. |
| |
| # February 2011. |
| # |
| # Profiler-assisted and platform-specific optimization resulted in 16% |
| # improvement on Cortex A8 core and ~21.5 cycles per byte. |
| |
| while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} |
| open STDOUT,">$output"; |
| |
| $s0="r0"; |
| $s1="r1"; |
| $s2="r2"; |
| $s3="r3"; |
| $t1="r4"; |
| $t2="r5"; |
| $t3="r6"; |
| $i1="r7"; |
| $i2="r8"; |
| $i3="r9"; |
| |
| $tbl="r10"; |
| $key="r11"; |
| $rounds="r12"; |
| |
| $code=<<___; |
| #include "arm_arch.h" |
| .text |
| .code 32 |
| |
| .type AES_Te,%object |
| .align 5 |
| AES_Te: |
| .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d |
| .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554 |
| .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d |
| .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a |
| .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87 |
| .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b |
| .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea |
| .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b |
| .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a |
| .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f |
| .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108 |
| .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f |
| .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e |
| .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5 |
| .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d |
| .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f |
| .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e |
| .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb |
| .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce |
| .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497 |
| .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c |
| .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed |
| .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b |
| .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a |
| .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16 |
| .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594 |
| .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81 |
| .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3 |
| .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a |
| .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504 |
| .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163 |
| .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d |
| .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f |
| .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739 |
| .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47 |
| .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395 |
| .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f |
| .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883 |
| .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c |
| .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76 |
| .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e |
| .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4 |
| .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6 |
| .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b |
| .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7 |
| .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0 |
| .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25 |
| .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818 |
| .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72 |
| .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651 |
| .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21 |
| .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85 |
| .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa |
| .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12 |
| .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0 |
| .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9 |
| .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133 |
| .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7 |
| .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920 |
| .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a |
| .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17 |
| .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8 |
| .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11 |
| .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a |
| @ Te4[256] |
| .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5 |
| .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76 |
| .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0 |
| .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0 |
| .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc |
| .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15 |
| .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a |
| .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75 |
| .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0 |
| .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84 |
| .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b |
| .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf |
| .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85 |
| .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8 |
| .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5 |
| .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2 |
| .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17 |
| .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73 |
| .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88 |
| .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb |
| .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c |
| .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79 |
| .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9 |
| .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08 |
| .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6 |
| .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a |
| .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e |
| .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e |
| .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94 |
| .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf |
| .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68 |
| .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 |
| @ rcon[] |
| .word 0x01000000, 0x02000000, 0x04000000, 0x08000000 |
| .word 0x10000000, 0x20000000, 0x40000000, 0x80000000 |
| .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0 |
| .size AES_Te,.-AES_Te |
| |
| @ void AES_encrypt(const unsigned char *in, unsigned char *out, |
| @ const AES_KEY *key) { |
| .global AES_encrypt |
| .type AES_encrypt,%function |
| .align 5 |
| AES_encrypt: |
| sub r3,pc,#8 @ AES_encrypt |
| stmdb sp!,{r1,r4-r12,lr} |
| mov $rounds,r0 @ inp |
| mov $key,r2 |
| sub $tbl,r3,#AES_encrypt-AES_Te @ Te |
| #if __ARM_ARCH__<7 |
| ldrb $s0,[$rounds,#3] @ load input data in endian-neutral |
| ldrb $t1,[$rounds,#2] @ manner... |
| ldrb $t2,[$rounds,#1] |
| ldrb $t3,[$rounds,#0] |
| orr $s0,$s0,$t1,lsl#8 |
| ldrb $s1,[$rounds,#7] |
| orr $s0,$s0,$t2,lsl#16 |
| ldrb $t1,[$rounds,#6] |
| orr $s0,$s0,$t3,lsl#24 |
| ldrb $t2,[$rounds,#5] |
| ldrb $t3,[$rounds,#4] |
| orr $s1,$s1,$t1,lsl#8 |
| ldrb $s2,[$rounds,#11] |
| orr $s1,$s1,$t2,lsl#16 |
| ldrb $t1,[$rounds,#10] |
| orr $s1,$s1,$t3,lsl#24 |
| ldrb $t2,[$rounds,#9] |
| ldrb $t3,[$rounds,#8] |
| orr $s2,$s2,$t1,lsl#8 |
| ldrb $s3,[$rounds,#15] |
| orr $s2,$s2,$t2,lsl#16 |
| ldrb $t1,[$rounds,#14] |
| orr $s2,$s2,$t3,lsl#24 |
| ldrb $t2,[$rounds,#13] |
| ldrb $t3,[$rounds,#12] |
| orr $s3,$s3,$t1,lsl#8 |
| orr $s3,$s3,$t2,lsl#16 |
| orr $s3,$s3,$t3,lsl#24 |
| #else |
| ldr $s0,[$rounds,#0] |
| ldr $s1,[$rounds,#4] |
| ldr $s2,[$rounds,#8] |
| ldr $s3,[$rounds,#12] |
| #ifdef __ARMEL__ |
| rev $s0,$s0 |
| rev $s1,$s1 |
| rev $s2,$s2 |
| rev $s3,$s3 |
| #endif |
| #endif |
| bl _armv4_AES_encrypt |
| |
| ldr $rounds,[sp],#4 @ pop out |
| #if __ARM_ARCH__>=7 |
| #ifdef __ARMEL__ |
| rev $s0,$s0 |
| rev $s1,$s1 |
| rev $s2,$s2 |
| rev $s3,$s3 |
| #endif |
| str $s0,[$rounds,#0] |
| str $s1,[$rounds,#4] |
| str $s2,[$rounds,#8] |
| str $s3,[$rounds,#12] |
| #else |
| mov $t1,$s0,lsr#24 @ write output in endian-neutral |
| mov $t2,$s0,lsr#16 @ manner... |
| mov $t3,$s0,lsr#8 |
| strb $t1,[$rounds,#0] |
| strb $t2,[$rounds,#1] |
| mov $t1,$s1,lsr#24 |
| strb $t3,[$rounds,#2] |
| mov $t2,$s1,lsr#16 |
| strb $s0,[$rounds,#3] |
| mov $t3,$s1,lsr#8 |
| strb $t1,[$rounds,#4] |
| strb $t2,[$rounds,#5] |
| mov $t1,$s2,lsr#24 |
| strb $t3,[$rounds,#6] |
| mov $t2,$s2,lsr#16 |
| strb $s1,[$rounds,#7] |
| mov $t3,$s2,lsr#8 |
| strb $t1,[$rounds,#8] |
| strb $t2,[$rounds,#9] |
| mov $t1,$s3,lsr#24 |
| strb $t3,[$rounds,#10] |
| mov $t2,$s3,lsr#16 |
| strb $s2,[$rounds,#11] |
| mov $t3,$s3,lsr#8 |
| strb $t1,[$rounds,#12] |
| strb $t2,[$rounds,#13] |
| strb $t3,[$rounds,#14] |
| strb $s3,[$rounds,#15] |
| #endif |
| #if __ARM_ARCH__>=5 |
| ldmia sp!,{r4-r12,pc} |
| #else |
| ldmia sp!,{r4-r12,lr} |
| tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| #endif |
| .size AES_encrypt,.-AES_encrypt |
| |
| .type _armv4_AES_encrypt,%function |
| .align 2 |
| _armv4_AES_encrypt: |
| str lr,[sp,#-4]! @ push lr |
| ldmia $key!,{$t1-$i1} |
| eor $s0,$s0,$t1 |
| ldr $rounds,[$key,#240-16] |
| eor $s1,$s1,$t2 |
| eor $s2,$s2,$t3 |
| eor $s3,$s3,$i1 |
| sub $rounds,$rounds,#1 |
| mov lr,#255 |
| |
| and $i1,lr,$s0 |
| and $i2,lr,$s0,lsr#8 |
| and $i3,lr,$s0,lsr#16 |
| mov $s0,$s0,lsr#24 |
| .Lenc_loop: |
| ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0] |
| and $i1,lr,$s1,lsr#16 @ i0 |
| ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8] |
| and $i2,lr,$s1 |
| ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16] |
| and $i3,lr,$s1,lsr#8 |
| ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24] |
| mov $s1,$s1,lsr#24 |
| |
| ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16] |
| ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0] |
| ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8] |
| eor $s0,$s0,$i1,ror#8 |
| ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24] |
| and $i1,lr,$s2,lsr#8 @ i0 |
| eor $t2,$t2,$i2,ror#8 |
| and $i2,lr,$s2,lsr#16 @ i1 |
| eor $t3,$t3,$i3,ror#8 |
| and $i3,lr,$s2 |
| ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8] |
| eor $s1,$s1,$t1,ror#24 |
| ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16] |
| mov $s2,$s2,lsr#24 |
| |
| ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0] |
| eor $s0,$s0,$i1,ror#16 |
| ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24] |
| and $i1,lr,$s3 @ i0 |
| eor $s1,$s1,$i2,ror#8 |
| and $i2,lr,$s3,lsr#8 @ i1 |
| eor $t3,$t3,$i3,ror#16 |
| and $i3,lr,$s3,lsr#16 @ i2 |
| ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0] |
| eor $s2,$s2,$t2,ror#16 |
| ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8] |
| mov $s3,$s3,lsr#24 |
| |
| ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16] |
| eor $s0,$s0,$i1,ror#24 |
| ldr $i1,[$key],#16 |
| eor $s1,$s1,$i2,ror#16 |
| ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24] |
| eor $s2,$s2,$i3,ror#8 |
| ldr $t1,[$key,#-12] |
| eor $s3,$s3,$t3,ror#8 |
| |
| ldr $t2,[$key,#-8] |
| eor $s0,$s0,$i1 |
| ldr $t3,[$key,#-4] |
| and $i1,lr,$s0 |
| eor $s1,$s1,$t1 |
| and $i2,lr,$s0,lsr#8 |
| eor $s2,$s2,$t2 |
| and $i3,lr,$s0,lsr#16 |
| eor $s3,$s3,$t3 |
| mov $s0,$s0,lsr#24 |
| |
| subs $rounds,$rounds,#1 |
| bne .Lenc_loop |
| |
| add $tbl,$tbl,#2 |
| |
| ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0] |
| and $i1,lr,$s1,lsr#16 @ i0 |
| ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8] |
| and $i2,lr,$s1 |
| ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16] |
| and $i3,lr,$s1,lsr#8 |
| ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24] |
| mov $s1,$s1,lsr#24 |
| |
| ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16] |
| ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0] |
| ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8] |
| eor $s0,$i1,$s0,lsl#8 |
| ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24] |
| and $i1,lr,$s2,lsr#8 @ i0 |
| eor $t2,$i2,$t2,lsl#8 |
| and $i2,lr,$s2,lsr#16 @ i1 |
| eor $t3,$i3,$t3,lsl#8 |
| and $i3,lr,$s2 |
| ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8] |
| eor $s1,$t1,$s1,lsl#24 |
| ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16] |
| mov $s2,$s2,lsr#24 |
| |
| ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0] |
| eor $s0,$i1,$s0,lsl#8 |
| ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24] |
| and $i1,lr,$s3 @ i0 |
| eor $s1,$s1,$i2,lsl#16 |
| and $i2,lr,$s3,lsr#8 @ i1 |
| eor $t3,$i3,$t3,lsl#8 |
| and $i3,lr,$s3,lsr#16 @ i2 |
| ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0] |
| eor $s2,$t2,$s2,lsl#24 |
| ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8] |
| mov $s3,$s3,lsr#24 |
| |
| ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16] |
| eor $s0,$i1,$s0,lsl#8 |
| ldr $i1,[$key,#0] |
| ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24] |
| eor $s1,$s1,$i2,lsl#8 |
| ldr $t1,[$key,#4] |
| eor $s2,$s2,$i3,lsl#16 |
| ldr $t2,[$key,#8] |
| eor $s3,$t3,$s3,lsl#24 |
| ldr $t3,[$key,#12] |
| |
| eor $s0,$s0,$i1 |
| eor $s1,$s1,$t1 |
| eor $s2,$s2,$t2 |
| eor $s3,$s3,$t3 |
| |
| sub $tbl,$tbl,#2 |
| ldr pc,[sp],#4 @ pop and return |
| .size _armv4_AES_encrypt,.-_armv4_AES_encrypt |
| |
| .global private_AES_set_encrypt_key |
| .type private_AES_set_encrypt_key,%function |
| .align 5 |
| private_AES_set_encrypt_key: |
| _armv4_AES_set_encrypt_key: |
| sub r3,pc,#8 @ AES_set_encrypt_key |
| teq r0,#0 |
| moveq r0,#-1 |
| beq .Labrt |
| teq r2,#0 |
| moveq r0,#-1 |
| beq .Labrt |
| |
| teq r1,#128 |
| beq .Lok |
| teq r1,#192 |
| beq .Lok |
| teq r1,#256 |
| movne r0,#-1 |
| bne .Labrt |
| |
| .Lok: stmdb sp!,{r4-r12,lr} |
| sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4 |
| |
| mov $rounds,r0 @ inp |
| mov lr,r1 @ bits |
| mov $key,r2 @ key |
| |
| #if __ARM_ARCH__<7 |
| ldrb $s0,[$rounds,#3] @ load input data in endian-neutral |
| ldrb $t1,[$rounds,#2] @ manner... |
| ldrb $t2,[$rounds,#1] |
| ldrb $t3,[$rounds,#0] |
| orr $s0,$s0,$t1,lsl#8 |
| ldrb $s1,[$rounds,#7] |
| orr $s0,$s0,$t2,lsl#16 |
| ldrb $t1,[$rounds,#6] |
| orr $s0,$s0,$t3,lsl#24 |
| ldrb $t2,[$rounds,#5] |
| ldrb $t3,[$rounds,#4] |
| orr $s1,$s1,$t1,lsl#8 |
| ldrb $s2,[$rounds,#11] |
| orr $s1,$s1,$t2,lsl#16 |
| ldrb $t1,[$rounds,#10] |
| orr $s1,$s1,$t3,lsl#24 |
| ldrb $t2,[$rounds,#9] |
| ldrb $t3,[$rounds,#8] |
| orr $s2,$s2,$t1,lsl#8 |
| ldrb $s3,[$rounds,#15] |
| orr $s2,$s2,$t2,lsl#16 |
| ldrb $t1,[$rounds,#14] |
| orr $s2,$s2,$t3,lsl#24 |
| ldrb $t2,[$rounds,#13] |
| ldrb $t3,[$rounds,#12] |
| orr $s3,$s3,$t1,lsl#8 |
| str $s0,[$key],#16 |
| orr $s3,$s3,$t2,lsl#16 |
| str $s1,[$key,#-12] |
| orr $s3,$s3,$t3,lsl#24 |
| str $s2,[$key,#-8] |
| str $s3,[$key,#-4] |
| #else |
| ldr $s0,[$rounds,#0] |
| ldr $s1,[$rounds,#4] |
| ldr $s2,[$rounds,#8] |
| ldr $s3,[$rounds,#12] |
| #ifdef __ARMEL__ |
| rev $s0,$s0 |
| rev $s1,$s1 |
| rev $s2,$s2 |
| rev $s3,$s3 |
| #endif |
| str $s0,[$key],#16 |
| str $s1,[$key,#-12] |
| str $s2,[$key,#-8] |
| str $s3,[$key,#-4] |
| #endif |
| |
| teq lr,#128 |
| bne .Lnot128 |
| mov $rounds,#10 |
| str $rounds,[$key,#240-16] |
| add $t3,$tbl,#256 @ rcon |
| mov lr,#255 |
| |
| .L128_loop: |
| and $t2,lr,$s3,lsr#24 |
| and $i1,lr,$s3,lsr#16 |
| ldrb $t2,[$tbl,$t2] |
| and $i2,lr,$s3,lsr#8 |
| ldrb $i1,[$tbl,$i1] |
| and $i3,lr,$s3 |
| ldrb $i2,[$tbl,$i2] |
| orr $t2,$t2,$i1,lsl#24 |
| ldrb $i3,[$tbl,$i3] |
| orr $t2,$t2,$i2,lsl#16 |
| ldr $t1,[$t3],#4 @ rcon[i++] |
| orr $t2,$t2,$i3,lsl#8 |
| eor $t2,$t2,$t1 |
| eor $s0,$s0,$t2 @ rk[4]=rk[0]^... |
| eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4] |
| str $s0,[$key],#16 |
| eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5] |
| str $s1,[$key,#-12] |
| eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6] |
| str $s2,[$key,#-8] |
| subs $rounds,$rounds,#1 |
| str $s3,[$key,#-4] |
| bne .L128_loop |
| sub r2,$key,#176 |
| b .Ldone |
| |
| .Lnot128: |
| #if __ARM_ARCH__<7 |
| ldrb $i2,[$rounds,#19] |
| ldrb $t1,[$rounds,#18] |
| ldrb $t2,[$rounds,#17] |
| ldrb $t3,[$rounds,#16] |
| orr $i2,$i2,$t1,lsl#8 |
| ldrb $i3,[$rounds,#23] |
| orr $i2,$i2,$t2,lsl#16 |
| ldrb $t1,[$rounds,#22] |
| orr $i2,$i2,$t3,lsl#24 |
| ldrb $t2,[$rounds,#21] |
| ldrb $t3,[$rounds,#20] |
| orr $i3,$i3,$t1,lsl#8 |
| orr $i3,$i3,$t2,lsl#16 |
| str $i2,[$key],#8 |
| orr $i3,$i3,$t3,lsl#24 |
| str $i3,[$key,#-4] |
| #else |
| ldr $i2,[$rounds,#16] |
| ldr $i3,[$rounds,#20] |
| #ifdef __ARMEL__ |
| rev $i2,$i2 |
| rev $i3,$i3 |
| #endif |
| str $i2,[$key],#8 |
| str $i3,[$key,#-4] |
| #endif |
| |
| teq lr,#192 |
| bne .Lnot192 |
| mov $rounds,#12 |
| str $rounds,[$key,#240-24] |
| add $t3,$tbl,#256 @ rcon |
| mov lr,#255 |
| mov $rounds,#8 |
| |
| .L192_loop: |
| and $t2,lr,$i3,lsr#24 |
| and $i1,lr,$i3,lsr#16 |
| ldrb $t2,[$tbl,$t2] |
| and $i2,lr,$i3,lsr#8 |
| ldrb $i1,[$tbl,$i1] |
| and $i3,lr,$i3 |
| ldrb $i2,[$tbl,$i2] |
| orr $t2,$t2,$i1,lsl#24 |
| ldrb $i3,[$tbl,$i3] |
| orr $t2,$t2,$i2,lsl#16 |
| ldr $t1,[$t3],#4 @ rcon[i++] |
| orr $t2,$t2,$i3,lsl#8 |
| eor $i3,$t2,$t1 |
| eor $s0,$s0,$i3 @ rk[6]=rk[0]^... |
| eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6] |
| str $s0,[$key],#24 |
| eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7] |
| str $s1,[$key,#-20] |
| eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8] |
| str $s2,[$key,#-16] |
| subs $rounds,$rounds,#1 |
| str $s3,[$key,#-12] |
| subeq r2,$key,#216 |
| beq .Ldone |
| |
| ldr $i1,[$key,#-32] |
| ldr $i2,[$key,#-28] |
| eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9] |
| eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10] |
| str $i1,[$key,#-8] |
| str $i3,[$key,#-4] |
| b .L192_loop |
| |
| .Lnot192: |
| #if __ARM_ARCH__<7 |
| ldrb $i2,[$rounds,#27] |
| ldrb $t1,[$rounds,#26] |
| ldrb $t2,[$rounds,#25] |
| ldrb $t3,[$rounds,#24] |
| orr $i2,$i2,$t1,lsl#8 |
| ldrb $i3,[$rounds,#31] |
| orr $i2,$i2,$t2,lsl#16 |
| ldrb $t1,[$rounds,#30] |
| orr $i2,$i2,$t3,lsl#24 |
| ldrb $t2,[$rounds,#29] |
| ldrb $t3,[$rounds,#28] |
| orr $i3,$i3,$t1,lsl#8 |
| orr $i3,$i3,$t2,lsl#16 |
| str $i2,[$key],#8 |
| orr $i3,$i3,$t3,lsl#24 |
| str $i3,[$key,#-4] |
| #else |
| ldr $i2,[$rounds,#24] |
| ldr $i3,[$rounds,#28] |
| #ifdef __ARMEL__ |
| rev $i2,$i2 |
| rev $i3,$i3 |
| #endif |
| str $i2,[$key],#8 |
| str $i3,[$key,#-4] |
| #endif |
| |
| mov $rounds,#14 |
| str $rounds,[$key,#240-32] |
| add $t3,$tbl,#256 @ rcon |
| mov lr,#255 |
| mov $rounds,#7 |
| |
| .L256_loop: |
| and $t2,lr,$i3,lsr#24 |
| and $i1,lr,$i3,lsr#16 |
| ldrb $t2,[$tbl,$t2] |
| and $i2,lr,$i3,lsr#8 |
| ldrb $i1,[$tbl,$i1] |
| and $i3,lr,$i3 |
| ldrb $i2,[$tbl,$i2] |
| orr $t2,$t2,$i1,lsl#24 |
| ldrb $i3,[$tbl,$i3] |
| orr $t2,$t2,$i2,lsl#16 |
| ldr $t1,[$t3],#4 @ rcon[i++] |
| orr $t2,$t2,$i3,lsl#8 |
| eor $i3,$t2,$t1 |
| eor $s0,$s0,$i3 @ rk[8]=rk[0]^... |
| eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8] |
| str $s0,[$key],#32 |
| eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9] |
| str $s1,[$key,#-28] |
| eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10] |
| str $s2,[$key,#-24] |
| subs $rounds,$rounds,#1 |
| str $s3,[$key,#-20] |
| subeq r2,$key,#256 |
| beq .Ldone |
| |
| and $t2,lr,$s3 |
| and $i1,lr,$s3,lsr#8 |
| ldrb $t2,[$tbl,$t2] |
| and $i2,lr,$s3,lsr#16 |
| ldrb $i1,[$tbl,$i1] |
| and $i3,lr,$s3,lsr#24 |
| ldrb $i2,[$tbl,$i2] |
| orr $t2,$t2,$i1,lsl#8 |
| ldrb $i3,[$tbl,$i3] |
| orr $t2,$t2,$i2,lsl#16 |
| ldr $t1,[$key,#-48] |
| orr $t2,$t2,$i3,lsl#24 |
| |
| ldr $i1,[$key,#-44] |
| ldr $i2,[$key,#-40] |
| eor $t1,$t1,$t2 @ rk[12]=rk[4]^... |
| ldr $i3,[$key,#-36] |
| eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12] |
| str $t1,[$key,#-16] |
| eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13] |
| str $i1,[$key,#-12] |
| eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14] |
| str $i2,[$key,#-8] |
| str $i3,[$key,#-4] |
| b .L256_loop |
| |
| .Ldone: mov r0,#0 |
| ldmia sp!,{r4-r12,lr} |
| .Labrt: tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| .size private_AES_set_encrypt_key,.-private_AES_set_encrypt_key |
| |
| .global private_AES_set_decrypt_key |
| .type private_AES_set_decrypt_key,%function |
| .align 5 |
| private_AES_set_decrypt_key: |
| str lr,[sp,#-4]! @ push lr |
| bl _armv4_AES_set_encrypt_key |
| teq r0,#0 |
| ldrne lr,[sp],#4 @ pop lr |
| bne .Labrt |
| |
| stmdb sp!,{r4-r12} |
| |
| ldr $rounds,[r2,#240] @ AES_set_encrypt_key preserves r2, |
| mov $key,r2 @ which is AES_KEY *key |
| mov $i1,r2 |
| add $i2,r2,$rounds,lsl#4 |
| |
| .Linv: ldr $s0,[$i1] |
| ldr $s1,[$i1,#4] |
| ldr $s2,[$i1,#8] |
| ldr $s3,[$i1,#12] |
| ldr $t1,[$i2] |
| ldr $t2,[$i2,#4] |
| ldr $t3,[$i2,#8] |
| ldr $i3,[$i2,#12] |
| str $s0,[$i2],#-16 |
| str $s1,[$i2,#16+4] |
| str $s2,[$i2,#16+8] |
| str $s3,[$i2,#16+12] |
| str $t1,[$i1],#16 |
| str $t2,[$i1,#-12] |
| str $t3,[$i1,#-8] |
| str $i3,[$i1,#-4] |
| teq $i1,$i2 |
| bne .Linv |
| ___ |
| $mask80=$i1; |
| $mask1b=$i2; |
| $mask7f=$i3; |
| $code.=<<___; |
| ldr $s0,[$key,#16]! @ prefetch tp1 |
| mov $mask80,#0x80 |
| mov $mask1b,#0x1b |
| orr $mask80,$mask80,#0x8000 |
| orr $mask1b,$mask1b,#0x1b00 |
| orr $mask80,$mask80,$mask80,lsl#16 |
| orr $mask1b,$mask1b,$mask1b,lsl#16 |
| sub $rounds,$rounds,#1 |
| mvn $mask7f,$mask80 |
| mov $rounds,$rounds,lsl#2 @ (rounds-1)*4 |
| |
| .Lmix: and $t1,$s0,$mask80 |
| and $s1,$s0,$mask7f |
| sub $t1,$t1,$t1,lsr#7 |
| and $t1,$t1,$mask1b |
| eor $s1,$t1,$s1,lsl#1 @ tp2 |
| |
| and $t1,$s1,$mask80 |
| and $s2,$s1,$mask7f |
| sub $t1,$t1,$t1,lsr#7 |
| and $t1,$t1,$mask1b |
| eor $s2,$t1,$s2,lsl#1 @ tp4 |
| |
| and $t1,$s2,$mask80 |
| and $s3,$s2,$mask7f |
| sub $t1,$t1,$t1,lsr#7 |
| and $t1,$t1,$mask1b |
| eor $s3,$t1,$s3,lsl#1 @ tp8 |
| |
| eor $t1,$s1,$s2 |
| eor $t2,$s0,$s3 @ tp9 |
| eor $t1,$t1,$s3 @ tpe |
| eor $t1,$t1,$s1,ror#24 |
| eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8) |
| eor $t1,$t1,$s2,ror#16 |
| eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16) |
| eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24) |
| |
| ldr $s0,[$key,#4] @ prefetch tp1 |
| str $t1,[$key],#4 |
| subs $rounds,$rounds,#1 |
| bne .Lmix |
| |
| mov r0,#0 |
| #if __ARM_ARCH__>=5 |
| ldmia sp!,{r4-r12,pc} |
| #else |
| ldmia sp!,{r4-r12,lr} |
| tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| #endif |
| .size private_AES_set_decrypt_key,.-private_AES_set_decrypt_key |
| |
| .type AES_Td,%object |
| .align 5 |
| AES_Td: |
| .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96 |
| .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393 |
| .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25 |
| .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f |
| .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1 |
| .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6 |
| .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da |
| .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844 |
| .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd |
| .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4 |
| .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45 |
| .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94 |
| .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7 |
| .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a |
| .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5 |
| .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c |
| .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1 |
| .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a |
| .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75 |
| .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051 |
| .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46 |
| .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff |
| .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77 |
| .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb |
| .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000 |
| .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e |
| .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927 |
| .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a |
| .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e |
| .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16 |
| .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d |
| .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8 |
| .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd |
| .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34 |
| .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163 |
| .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120 |
| .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d |
| .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0 |
| .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422 |
| .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef |
| .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36 |
| .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4 |
| .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662 |
| .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5 |
| .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3 |
| .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b |
| .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8 |
| .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6 |
| .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6 |
| .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0 |
| .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815 |
| .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f |
| .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df |
| .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f |
| .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e |
| .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713 |
| .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89 |
| .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c |
| .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf |
| .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86 |
| .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f |
| .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541 |
| .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190 |
| .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742 |
| @ Td4[256] |
| .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38 |
| .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb |
| .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87 |
| .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb |
| .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d |
| .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e |
| .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2 |
| .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25 |
| .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16 |
| .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92 |
| .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda |
| .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84 |
| .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a |
| .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06 |
| .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02 |
| .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b |
| .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea |
| .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73 |
| .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85 |
| .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e |
| .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89 |
| .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b |
| .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20 |
| .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4 |
| .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31 |
| .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f |
| .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d |
| .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef |
| .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0 |
| .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61 |
| .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26 |
| .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d |
| .size AES_Td,.-AES_Td |
| |
| @ void AES_decrypt(const unsigned char *in, unsigned char *out, |
| @ const AES_KEY *key) { |
| .global AES_decrypt |
| .type AES_decrypt,%function |
| .align 5 |
| AES_decrypt: |
| sub r3,pc,#8 @ AES_decrypt |
| stmdb sp!,{r1,r4-r12,lr} |
| mov $rounds,r0 @ inp |
| mov $key,r2 |
| sub $tbl,r3,#AES_decrypt-AES_Td @ Td |
| #if __ARM_ARCH__<7 |
| ldrb $s0,[$rounds,#3] @ load input data in endian-neutral |
| ldrb $t1,[$rounds,#2] @ manner... |
| ldrb $t2,[$rounds,#1] |
| ldrb $t3,[$rounds,#0] |
| orr $s0,$s0,$t1,lsl#8 |
| ldrb $s1,[$rounds,#7] |
| orr $s0,$s0,$t2,lsl#16 |
| ldrb $t1,[$rounds,#6] |
| orr $s0,$s0,$t3,lsl#24 |
| ldrb $t2,[$rounds,#5] |
| ldrb $t3,[$rounds,#4] |
| orr $s1,$s1,$t1,lsl#8 |
| ldrb $s2,[$rounds,#11] |
| orr $s1,$s1,$t2,lsl#16 |
| ldrb $t1,[$rounds,#10] |
| orr $s1,$s1,$t3,lsl#24 |
| ldrb $t2,[$rounds,#9] |
| ldrb $t3,[$rounds,#8] |
| orr $s2,$s2,$t1,lsl#8 |
| ldrb $s3,[$rounds,#15] |
| orr $s2,$s2,$t2,lsl#16 |
| ldrb $t1,[$rounds,#14] |
| orr $s2,$s2,$t3,lsl#24 |
| ldrb $t2,[$rounds,#13] |
| ldrb $t3,[$rounds,#12] |
| orr $s3,$s3,$t1,lsl#8 |
| orr $s3,$s3,$t2,lsl#16 |
| orr $s3,$s3,$t3,lsl#24 |
| #else |
| ldr $s0,[$rounds,#0] |
| ldr $s1,[$rounds,#4] |
| ldr $s2,[$rounds,#8] |
| ldr $s3,[$rounds,#12] |
| #ifdef __ARMEL__ |
| rev $s0,$s0 |
| rev $s1,$s1 |
| rev $s2,$s2 |
| rev $s3,$s3 |
| #endif |
| #endif |
| bl _armv4_AES_decrypt |
| |
| ldr $rounds,[sp],#4 @ pop out |
| #if __ARM_ARCH__>=7 |
| #ifdef __ARMEL__ |
| rev $s0,$s0 |
| rev $s1,$s1 |
| rev $s2,$s2 |
| rev $s3,$s3 |
| #endif |
| str $s0,[$rounds,#0] |
| str $s1,[$rounds,#4] |
| str $s2,[$rounds,#8] |
| str $s3,[$rounds,#12] |
| #else |
| mov $t1,$s0,lsr#24 @ write output in endian-neutral |
| mov $t2,$s0,lsr#16 @ manner... |
| mov $t3,$s0,lsr#8 |
| strb $t1,[$rounds,#0] |
| strb $t2,[$rounds,#1] |
| mov $t1,$s1,lsr#24 |
| strb $t3,[$rounds,#2] |
| mov $t2,$s1,lsr#16 |
| strb $s0,[$rounds,#3] |
| mov $t3,$s1,lsr#8 |
| strb $t1,[$rounds,#4] |
| strb $t2,[$rounds,#5] |
| mov $t1,$s2,lsr#24 |
| strb $t3,[$rounds,#6] |
| mov $t2,$s2,lsr#16 |
| strb $s1,[$rounds,#7] |
| mov $t3,$s2,lsr#8 |
| strb $t1,[$rounds,#8] |
| strb $t2,[$rounds,#9] |
| mov $t1,$s3,lsr#24 |
| strb $t3,[$rounds,#10] |
| mov $t2,$s3,lsr#16 |
| strb $s2,[$rounds,#11] |
| mov $t3,$s3,lsr#8 |
| strb $t1,[$rounds,#12] |
| strb $t2,[$rounds,#13] |
| strb $t3,[$rounds,#14] |
| strb $s3,[$rounds,#15] |
| #endif |
| #if __ARM_ARCH__>=5 |
| ldmia sp!,{r4-r12,pc} |
| #else |
| ldmia sp!,{r4-r12,lr} |
| tst lr,#1 |
| moveq pc,lr @ be binary compatible with V4, yet |
| bx lr @ interoperable with Thumb ISA:-) |
| #endif |
| .size AES_decrypt,.-AES_decrypt |
| |
| .type _armv4_AES_decrypt,%function |
| .align 2 |
| _armv4_AES_decrypt: |
| str lr,[sp,#-4]! @ push lr |
| ldmia $key!,{$t1-$i1} |
| eor $s0,$s0,$t1 |
| ldr $rounds,[$key,#240-16] |
| eor $s1,$s1,$t2 |
| eor $s2,$s2,$t3 |
| eor $s3,$s3,$i1 |
| sub $rounds,$rounds,#1 |
| mov lr,#255 |
| |
| and $i1,lr,$s0,lsr#16 |
| and $i2,lr,$s0,lsr#8 |
| and $i3,lr,$s0 |
| mov $s0,$s0,lsr#24 |
| .Ldec_loop: |
| ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16] |
| and $i1,lr,$s1 @ i0 |
| ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8] |
| and $i2,lr,$s1,lsr#16 |
| ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0] |
| and $i3,lr,$s1,lsr#8 |
| ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24] |
| mov $s1,$s1,lsr#24 |
| |
| ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0] |
| ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16] |
| ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8] |
| eor $s0,$s0,$i1,ror#24 |
| ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24] |
| and $i1,lr,$s2,lsr#8 @ i0 |
| eor $t2,$i2,$t2,ror#8 |
| and $i2,lr,$s2 @ i1 |
| eor $t3,$i3,$t3,ror#8 |
| and $i3,lr,$s2,lsr#16 |
| ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8] |
| eor $s1,$s1,$t1,ror#8 |
| ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0] |
| mov $s2,$s2,lsr#24 |
| |
| ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16] |
| eor $s0,$s0,$i1,ror#16 |
| ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24] |
| and $i1,lr,$s3,lsr#16 @ i0 |
| eor $s1,$s1,$i2,ror#24 |
| and $i2,lr,$s3,lsr#8 @ i1 |
| eor $t3,$i3,$t3,ror#8 |
| and $i3,lr,$s3 @ i2 |
| ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16] |
| eor $s2,$s2,$t2,ror#8 |
| ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8] |
| mov $s3,$s3,lsr#24 |
| |
| ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0] |
| eor $s0,$s0,$i1,ror#8 |
| ldr $i1,[$key],#16 |
| eor $s1,$s1,$i2,ror#16 |
| ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24] |
| eor $s2,$s2,$i3,ror#24 |
| |
| ldr $t1,[$key,#-12] |
| eor $s0,$s0,$i1 |
| ldr $t2,[$key,#-8] |
| eor $s3,$s3,$t3,ror#8 |
| ldr $t3,[$key,#-4] |
| and $i1,lr,$s0,lsr#16 |
| eor $s1,$s1,$t1 |
| and $i2,lr,$s0,lsr#8 |
| eor $s2,$s2,$t2 |
| and $i3,lr,$s0 |
| eor $s3,$s3,$t3 |
| mov $s0,$s0,lsr#24 |
| |
| subs $rounds,$rounds,#1 |
| bne .Ldec_loop |
| |
| add $tbl,$tbl,#1024 |
| |
| ldr $t2,[$tbl,#0] @ prefetch Td4 |
| ldr $t3,[$tbl,#32] |
| ldr $t1,[$tbl,#64] |
| ldr $t2,[$tbl,#96] |
| ldr $t3,[$tbl,#128] |
| ldr $t1,[$tbl,#160] |
| ldr $t2,[$tbl,#192] |
| ldr $t3,[$tbl,#224] |
| |
| ldrb $s0,[$tbl,$s0] @ Td4[s0>>24] |
| ldrb $t1,[$tbl,$i1] @ Td4[s0>>16] |
| and $i1,lr,$s1 @ i0 |
| ldrb $t2,[$tbl,$i2] @ Td4[s0>>8] |
| and $i2,lr,$s1,lsr#16 |
| ldrb $t3,[$tbl,$i3] @ Td4[s0>>0] |
| and $i3,lr,$s1,lsr#8 |
| |
| ldrb $i1,[$tbl,$i1] @ Td4[s1>>0] |
| ldrb $s1,[$tbl,$s1,lsr#24] @ Td4[s1>>24] |
| ldrb $i2,[$tbl,$i2] @ Td4[s1>>16] |
| eor $s0,$i1,$s0,lsl#24 |
| ldrb $i3,[$tbl,$i3] @ Td4[s1>>8] |
| eor $s1,$t1,$s1,lsl#8 |
| and $i1,lr,$s2,lsr#8 @ i0 |
| eor $t2,$t2,$i2,lsl#8 |
| and $i2,lr,$s2 @ i1 |
| ldrb $i1,[$tbl,$i1] @ Td4[s2>>8] |
| eor $t3,$t3,$i3,lsl#8 |
| ldrb $i2,[$tbl,$i2] @ Td4[s2>>0] |
| and $i3,lr,$s2,lsr#16 |
| |
| ldrb $s2,[$tbl,$s2,lsr#24] @ Td4[s2>>24] |
| eor $s0,$s0,$i1,lsl#8 |
| ldrb $i3,[$tbl,$i3] @ Td4[s2>>16] |
| eor $s1,$i2,$s1,lsl#16 |
| and $i1,lr,$s3,lsr#16 @ i0 |
| eor $s2,$t2,$s2,lsl#16 |
| and $i2,lr,$s3,lsr#8 @ i1 |
| ldrb $i1,[$tbl,$i1] @ Td4[s3>>16] |
| eor $t3,$t3,$i3,lsl#16 |
| ldrb $i2,[$tbl,$i2] @ Td4[s3>>8] |
| and $i3,lr,$s3 @ i2 |
| |
| ldrb $i3,[$tbl,$i3] @ Td4[s3>>0] |
| ldrb $s3,[$tbl,$s3,lsr#24] @ Td4[s3>>24] |
| eor $s0,$s0,$i1,lsl#16 |
| ldr $i1,[$key,#0] |
| eor $s1,$s1,$i2,lsl#8 |
| ldr $t1,[$key,#4] |
| eor $s2,$i3,$s2,lsl#8 |
| ldr $t2,[$key,#8] |
| eor $s3,$t3,$s3,lsl#24 |
| ldr $t3,[$key,#12] |
| |
| eor $s0,$s0,$i1 |
| eor $s1,$s1,$t1 |
| eor $s2,$s2,$t2 |
| eor $s3,$s3,$t3 |
| |
| sub $tbl,$tbl,#1024 |
| ldr pc,[sp],#4 @ pop and return |
| .size _armv4_AES_decrypt,.-_armv4_AES_decrypt |
| .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>" |
| .align 2 |
| ___ |
| |
| $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 |
| print $code; |
| close STDOUT; # enforce flush |
