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-rwxr-xr-xcrypto/aes/asm/aes-armv4.pl1030
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diff --git a/crypto/aes/asm/aes-armv4.pl b/crypto/aes/asm/aes-armv4.pl
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@@ -1,1030 +0,0 @@
-#!/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.
-
-# May 2007.
-#
-# AES_set_[en|de]crypt_key is added.
-
-$s0="r0";
-$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=<<___;
-.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
-
- 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
- orr $s0,$s0,$t2,lsl#16
- orr $s0,$s0,$t3,lsl#24
- ldrb $s1,[$rounds,#7]
- ldrb $t1,[$rounds,#6]
- ldrb $t2,[$rounds,#5]
- ldrb $t3,[$rounds,#4]
- orr $s1,$s1,$t1,lsl#8
- orr $s1,$s1,$t2,lsl#16
- orr $s1,$s1,$t3,lsl#24
- ldrb $s2,[$rounds,#11]
- ldrb $t1,[$rounds,#10]
- ldrb $t2,[$rounds,#9]
- ldrb $t3,[$rounds,#8]
- orr $s2,$s2,$t1,lsl#8
- orr $s2,$s2,$t2,lsl#16
- orr $s2,$s2,$t3,lsl#24
- ldrb $s3,[$rounds,#15]
- ldrb $t1,[$rounds,#14]
- 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
-
- bl _armv4_AES_encrypt
-
- ldr $rounds,[sp],#4 @ pop out
- 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]
- strb $t3,[$rounds,#2]
- strb $s0,[$rounds,#3]
- mov $t1,$s1,lsr#24
- mov $t2,$s1,lsr#16
- mov $t3,$s1,lsr#8
- strb $t1,[$rounds,#4]
- strb $t2,[$rounds,#5]
- strb $t3,[$rounds,#6]
- strb $s1,[$rounds,#7]
- mov $t1,$s2,lsr#24
- mov $t2,$s2,lsr#16
- mov $t3,$s2,lsr#8
- strb $t1,[$rounds,#8]
- strb $t2,[$rounds,#9]
- strb $t3,[$rounds,#10]
- strb $s2,[$rounds,#11]
- mov $t1,$s3,lsr#24
- mov $t2,$s3,lsr#16
- mov $t3,$s3,lsr#8
- strb $t1,[$rounds,#12]
- strb $t2,[$rounds,#13]
- strb $t3,[$rounds,#14]
- strb $s3,[$rounds,#15]
-
- ldmia sp!,{r4-r12,lr}
- tst lr,#1
- moveq pc,lr @ be binary compatible with V4, yet
- bx lr @ interoperable with Thumb ISA:-)
-.size AES_encrypt,.-AES_encrypt
-
-.type _armv4_AES_encrypt,%function
-.align 2
-_armv4_AES_encrypt:
- str lr,[sp,#-4]! @ push lr
- ldr $t1,[$key],#16
- ldr $t2,[$key,#-12]
- ldr $t3,[$key,#-8]
- ldr $i1,[$key,#-4]
- ldr $rounds,[$key,#240-16]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
- sub $rounds,$rounds,#1
- mov lr,#255
-
-.Lenc_loop:
- and $i2,lr,$s0,lsr#8
- and $i3,lr,$s0,lsr#16
- and $i1,lr,$s0
- mov $s0,$s0,lsr#24
- ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0]
- ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24]
- ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8]
- ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16]
-
- and $i1,lr,$s1,lsr#16 @ i0
- and $i2,lr,$s1
- and $i3,lr,$s1,lsr#8
- mov $s1,$s1,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16]
- ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24]
- ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0]
- ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8]
- eor $s0,$s0,$i1,ror#8
- eor $s1,$s1,$t1,ror#24
- eor $t2,$t2,$i2,ror#8
- eor $t3,$t3,$i3,ror#8
-
- and $i1,lr,$s2,lsr#8 @ i0
- and $i2,lr,$s2,lsr#16 @ i1
- and $i3,lr,$s2
- mov $s2,$s2,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8]
- ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16]
- ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24]
- ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0]
- eor $s0,$s0,$i1,ror#16
- eor $s1,$s1,$i2,ror#8
- eor $s2,$s2,$t2,ror#16
- eor $t3,$t3,$i3,ror#16
-
- and $i1,lr,$s3 @ i0
- and $i2,lr,$s3,lsr#8 @ i1
- and $i3,lr,$s3,lsr#16 @ i2
- mov $s3,$s3,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0]
- ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8]
- ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16]
- ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24]
- eor $s0,$s0,$i1,ror#24
- eor $s1,$s1,$i2,ror#16
- eor $s2,$s2,$i3,ror#8
- eor $s3,$s3,$t3,ror#8
-
- ldr $t1,[$key],#16
- ldr $t2,[$key,#-12]
- ldr $t3,[$key,#-8]
- ldr $i1,[$key,#-4]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
-
- subs $rounds,$rounds,#1
- bne .Lenc_loop
-
- add $tbl,$tbl,#2
-
- and $i1,lr,$s0
- and $i2,lr,$s0,lsr#8
- and $i3,lr,$s0,lsr#16
- mov $s0,$s0,lsr#24
- ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0]
- ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24]
- ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8]
- ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16]
-
- and $i1,lr,$s1,lsr#16 @ i0
- and $i2,lr,$s1
- and $i3,lr,$s1,lsr#8
- mov $s1,$s1,lsr#24
- ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16]
- ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24]
- ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0]
- ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8]
- eor $s0,$i1,$s0,lsl#8
- eor $s1,$t1,$s1,lsl#24
- eor $t2,$i2,$t2,lsl#8
- eor $t3,$i3,$t3,lsl#8
-
- and $i1,lr,$s2,lsr#8 @ i0
- and $i2,lr,$s2,lsr#16 @ i1
- and $i3,lr,$s2
- mov $s2,$s2,lsr#24
- ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8]
- ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16]
- ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24]
- ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0]
- eor $s0,$i1,$s0,lsl#8
- eor $s1,$s1,$i2,lsl#16
- eor $s2,$t2,$s2,lsl#24
- eor $t3,$i3,$t3,lsl#8
-
- and $i1,lr,$s3 @ i0
- and $i2,lr,$s3,lsr#8 @ i1
- and $i3,lr,$s3,lsr#16 @ i2
- mov $s3,$s3,lsr#24
- ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0]
- ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8]
- ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16]
- ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24]
- eor $s0,$i1,$s0,lsl#8
- eor $s1,$s1,$i2,lsl#8
- eor $s2,$s2,$i3,lsl#16
- eor $s3,$t3,$s3,lsl#24
-
- ldr lr,[sp],#4 @ pop lr
- ldr $t1,[$key,#0]
- ldr $t2,[$key,#4]
- ldr $t3,[$key,#8]
- ldr $i1,[$key,#12]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
-
- sub $tbl,$tbl,#2
- mov pc,lr @ return
-.size _armv4_AES_encrypt,.-_armv4_AES_encrypt
-
-.global AES_set_encrypt_key
-.type AES_set_encrypt_key,%function
-.align 5
-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,#AES_set_encrypt_key-AES_Te-1024 @ Te4
-
- mov $rounds,r0 @ inp
- mov lr,r1 @ bits
- mov $key,r2 @ key
-
- 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
- orr $s0,$s0,$t2,lsl#16
- orr $s0,$s0,$t3,lsl#24
- ldrb $s1,[$rounds,#7]
- ldrb $t1,[$rounds,#6]
- ldrb $t2,[$rounds,#5]
- ldrb $t3,[$rounds,#4]
- orr $s1,$s1,$t1,lsl#8
- orr $s1,$s1,$t2,lsl#16
- orr $s1,$s1,$t3,lsl#24
- ldrb $s2,[$rounds,#11]
- ldrb $t1,[$rounds,#10]
- ldrb $t2,[$rounds,#9]
- ldrb $t3,[$rounds,#8]
- orr $s2,$s2,$t1,lsl#8
- orr $s2,$s2,$t2,lsl#16
- orr $s2,$s2,$t3,lsl#24
- ldrb $s3,[$rounds,#15]
- ldrb $t1,[$rounds,#14]
- 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
- str $s0,[$key],#16
- str $s1,[$key,#-12]
- str $s2,[$key,#-8]
- str $s3,[$key,#-4]
-
- 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
- and $i2,lr,$s3,lsr#8
- and $i3,lr,$s3
- ldrb $t2,[$tbl,$t2]
- ldrb $i1,[$tbl,$i1]
- ldrb $i2,[$tbl,$i2]
- ldrb $i3,[$tbl,$i3]
- ldr $t1,[$t3],#4 @ rcon[i++]
- orr $t2,$t2,$i1,lsl#24
- orr $t2,$t2,$i2,lsl#16
- 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]
- eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5]
- eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6]
- str $s0,[$key],#16
- str $s1,[$key,#-12]
- str $s2,[$key,#-8]
- str $s3,[$key,#-4]
-
- subs $rounds,$rounds,#1
- bne .L128_loop
- sub r2,$key,#176
- b .Ldone
-
-.Lnot128:
- ldrb $i2,[$rounds,#19]
- ldrb $t1,[$rounds,#18]
- ldrb $t2,[$rounds,#17]
- ldrb $t3,[$rounds,#16]
- orr $i2,$i2,$t1,lsl#8
- orr $i2,$i2,$t2,lsl#16
- orr $i2,$i2,$t3,lsl#24
- ldrb $i3,[$rounds,#23]
- ldrb $t1,[$rounds,#22]
- ldrb $t2,[$rounds,#21]
- ldrb $t3,[$rounds,#20]
- orr $i3,$i3,$t1,lsl#8
- orr $i3,$i3,$t2,lsl#16
- orr $i3,$i3,$t3,lsl#24
- str $i2,[$key],#8
- str $i3,[$key,#-4]
-
- 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
- and $i2,lr,$i3,lsr#8
- and $i3,lr,$i3
- ldrb $t2,[$tbl,$t2]
- ldrb $i1,[$tbl,$i1]
- ldrb $i2,[$tbl,$i2]
- ldrb $i3,[$tbl,$i3]
- ldr $t1,[$t3],#4 @ rcon[i++]
- orr $t2,$t2,$i1,lsl#24
- orr $t2,$t2,$i2,lsl#16
- 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]
- eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7]
- eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8]
- str $s0,[$key],#24
- str $s1,[$key,#-20]
- str $s2,[$key,#-16]
- str $s3,[$key,#-12]
-
- subs $rounds,$rounds,#1
- 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:
- ldrb $i2,[$rounds,#27]
- ldrb $t1,[$rounds,#26]
- ldrb $t2,[$rounds,#25]
- ldrb $t3,[$rounds,#24]
- orr $i2,$i2,$t1,lsl#8
- orr $i2,$i2,$t2,lsl#16
- orr $i2,$i2,$t3,lsl#24
- ldrb $i3,[$rounds,#31]
- ldrb $t1,[$rounds,#30]
- ldrb $t2,[$rounds,#29]
- ldrb $t3,[$rounds,#28]
- orr $i3,$i3,$t1,lsl#8
- orr $i3,$i3,$t2,lsl#16
- orr $i3,$i3,$t3,lsl#24
- str $i2,[$key],#8
- str $i3,[$key,#-4]
-
- 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
- and $i2,lr,$i3,lsr#8
- and $i3,lr,$i3
- ldrb $t2,[$tbl,$t2]
- ldrb $i1,[$tbl,$i1]
- ldrb $i2,[$tbl,$i2]
- ldrb $i3,[$tbl,$i3]
- ldr $t1,[$t3],#4 @ rcon[i++]
- orr $t2,$t2,$i1,lsl#24
- orr $t2,$t2,$i2,lsl#16
- 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]
- eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9]
- eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10]
- str $s0,[$key],#32
- str $s1,[$key,#-28]
- str $s2,[$key,#-24]
- str $s3,[$key,#-20]
-
- subs $rounds,$rounds,#1
- subeq r2,$key,#256
- beq .Ldone
-
- and $t2,lr,$s3
- and $i1,lr,$s3,lsr#8
- and $i2,lr,$s3,lsr#16
- and $i3,lr,$s3,lsr#24
- ldrb $t2,[$tbl,$t2]
- ldrb $i1,[$tbl,$i1]
- ldrb $i2,[$tbl,$i2]
- ldrb $i3,[$tbl,$i3]
- orr $t2,$t2,$i1,lsl#8
- orr $t2,$t2,$i2,lsl#16
- orr $t2,$t2,$i3,lsl#24
-
- ldr $t1,[$key,#-48]
- ldr $i1,[$key,#-44]
- ldr $i2,[$key,#-40]
- ldr $i3,[$key,#-36]
- eor $t1,$t1,$t2 @ rk[12]=rk[4]^...
- eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12]
- eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13]
- eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14]
- str $t1,[$key,#-16]
- str $i1,[$key,#-12]
- 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 AES_set_encrypt_key,.-AES_set_encrypt_key
-
-.global AES_set_decrypt_key
-.type AES_set_decrypt_key,%function
-.align 5
-AES_set_decrypt_key:
- str lr,[sp,#-4]! @ push lr
- bl 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
- ldmia sp!,{r4-r12,lr}
- tst lr,#1
- moveq pc,lr @ be binary compatible with V4, yet
- bx lr @ interoperable with Thumb ISA:-)
-.size AES_set_decrypt_key,.-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
-
- 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
- orr $s0,$s0,$t2,lsl#16
- orr $s0,$s0,$t3,lsl#24
- ldrb $s1,[$rounds,#7]
- ldrb $t1,[$rounds,#6]
- ldrb $t2,[$rounds,#5]
- ldrb $t3,[$rounds,#4]
- orr $s1,$s1,$t1,lsl#8
- orr $s1,$s1,$t2,lsl#16
- orr $s1,$s1,$t3,lsl#24
- ldrb $s2,[$rounds,#11]
- ldrb $t1,[$rounds,#10]
- ldrb $t2,[$rounds,#9]
- ldrb $t3,[$rounds,#8]
- orr $s2,$s2,$t1,lsl#8
- orr $s2,$s2,$t2,lsl#16
- orr $s2,$s2,$t3,lsl#24
- ldrb $s3,[$rounds,#15]
- ldrb $t1,[$rounds,#14]
- 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
-
- bl _armv4_AES_decrypt
-
- ldr $rounds,[sp],#4 @ pop out
- 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]
- strb $t3,[$rounds,#2]
- strb $s0,[$rounds,#3]
- mov $t1,$s1,lsr#24
- mov $t2,$s1,lsr#16
- mov $t3,$s1,lsr#8
- strb $t1,[$rounds,#4]
- strb $t2,[$rounds,#5]
- strb $t3,[$rounds,#6]
- strb $s1,[$rounds,#7]
- mov $t1,$s2,lsr#24
- mov $t2,$s2,lsr#16
- mov $t3,$s2,lsr#8
- strb $t1,[$rounds,#8]
- strb $t2,[$rounds,#9]
- strb $t3,[$rounds,#10]
- strb $s2,[$rounds,#11]
- mov $t1,$s3,lsr#24
- mov $t2,$s3,lsr#16
- mov $t3,$s3,lsr#8
- strb $t1,[$rounds,#12]
- strb $t2,[$rounds,#13]
- strb $t3,[$rounds,#14]
- strb $s3,[$rounds,#15]
-
- ldmia sp!,{r4-r12,lr}
- tst lr,#1
- moveq pc,lr @ be binary compatible with V4, yet
- bx lr @ interoperable with Thumb ISA:-)
-.size AES_decrypt,.-AES_decrypt
-
-.type _armv4_AES_decrypt,%function
-.align 2
-_armv4_AES_decrypt:
- str lr,[sp,#-4]! @ push lr
- ldr $t1,[$key],#16
- ldr $t2,[$key,#-12]
- ldr $t3,[$key,#-8]
- ldr $i1,[$key,#-4]
- ldr $rounds,[$key,#240-16]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
- sub $rounds,$rounds,#1
- mov lr,#255
-
-.Ldec_loop:
- and $i1,lr,$s0,lsr#16
- and $i2,lr,$s0,lsr#8
- and $i3,lr,$s0
- mov $s0,$s0,lsr#24
- ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16]
- ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24]
- ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8]
- ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0]
-
- and $i1,lr,$s1 @ i0
- and $i2,lr,$s1,lsr#16
- and $i3,lr,$s1,lsr#8
- mov $s1,$s1,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0]
- ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24]
- ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16]
- ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8]
- eor $s0,$s0,$i1,ror#24
- eor $s1,$s1,$t1,ror#8
- eor $t2,$i2,$t2,ror#8
- eor $t3,$i3,$t3,ror#8
-
- and $i1,lr,$s2,lsr#8 @ i0
- and $i2,lr,$s2 @ i1
- and $i3,lr,$s2,lsr#16
- mov $s2,$s2,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8]
- ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0]
- ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24]
- ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16]
- eor $s0,$s0,$i1,ror#16
- eor $s1,$s1,$i2,ror#24
- eor $s2,$s2,$t2,ror#8
- eor $t3,$i3,$t3,ror#8
-
- and $i1,lr,$s3,lsr#16 @ i0
- and $i2,lr,$s3,lsr#8 @ i1
- and $i3,lr,$s3 @ i2
- mov $s3,$s3,lsr#24
- ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16]
- ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8]
- ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0]
- ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24]
- eor $s0,$s0,$i1,ror#8
- eor $s1,$s1,$i2,ror#16
- eor $s2,$s2,$i3,ror#24
- eor $s3,$s3,$t3,ror#8
-
- ldr $t1,[$key],#16
- ldr $t2,[$key,#-12]
- ldr $t3,[$key,#-8]
- ldr $i1,[$key,#-4]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
-
- subs $rounds,$rounds,#1
- bne .Ldec_loop
-
- add $tbl,$tbl,#1024
-
- ldr $t1,[$tbl,#0] @ prefetch Td4
- ldr $t2,[$tbl,#32]
- ldr $t3,[$tbl,#64]
- ldr $i1,[$tbl,#96]
- ldr $i2,[$tbl,#128]
- ldr $i3,[$tbl,#160]
- ldr $t1,[$tbl,#192]
- ldr $t2,[$tbl,#224]
-
- and $i1,lr,$s0,lsr#16
- and $i2,lr,$s0,lsr#8
- and $i3,lr,$s0
- ldrb $s0,[$tbl,$s0,lsr#24] @ Td4[s0>>24]
- ldrb $t1,[$tbl,$i1] @ Td4[s0>>16]
- ldrb $t2,[$tbl,$i2] @ Td4[s0>>8]
- ldrb $t3,[$tbl,$i3] @ Td4[s0>>0]
-
- and $i1,lr,$s1 @ i0
- and $i2,lr,$s1,lsr#16
- 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]
- ldrb $i3,[$tbl,$i3] @ Td4[s1>>8]
- eor $s0,$i1,$s0,lsl#24
- eor $s1,$t1,$s1,lsl#8
- eor $t2,$t2,$i2,lsl#8
- eor $t3,$t3,$i3,lsl#8
-
- and $i1,lr,$s2,lsr#8 @ i0
- and $i2,lr,$s2 @ i1
- and $i3,lr,$s2,lsr#16
- ldrb $i1,[$tbl,$i1] @ Td4[s2>>8]
- ldrb $i2,[$tbl,$i2] @ Td4[s2>>0]
- ldrb $s2,[$tbl,$s2,lsr#24] @ Td4[s2>>24]
- ldrb $i3,[$tbl,$i3] @ Td4[s2>>16]
- eor $s0,$s0,$i1,lsl#8
- eor $s1,$i2,$s1,lsl#16
- eor $s2,$t2,$s2,lsl#16
- eor $t3,$t3,$i3,lsl#16
-
- and $i1,lr,$s3,lsr#16 @ i0
- and $i2,lr,$s3,lsr#8 @ i1
- and $i3,lr,$s3 @ i2
- ldrb $i1,[$tbl,$i1] @ Td4[s3>>16]
- ldrb $i2,[$tbl,$i2] @ Td4[s3>>8]
- ldrb $i3,[$tbl,$i3] @ Td4[s3>>0]
- ldrb $s3,[$tbl,$s3,lsr#24] @ Td4[s3>>24]
- eor $s0,$s0,$i1,lsl#16
- eor $s1,$s1,$i2,lsl#8
- eor $s2,$i3,$s2,lsl#8
- eor $s3,$t3,$s3,lsl#24
-
- ldr lr,[sp],#4 @ pop lr
- ldr $t1,[$key,#0]
- ldr $t2,[$key,#4]
- ldr $t3,[$key,#8]
- ldr $i1,[$key,#12]
- eor $s0,$s0,$t1
- eor $s1,$s1,$t2
- eor $s2,$s2,$t3
- eor $s3,$s3,$i1
-
- sub $tbl,$tbl,#1024
- mov pc,lr @ return
-.size _armv4_AES_decrypt,.-_armv4_AES_decrypt
-.asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
-___
-
-$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
-print $code;