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aes_armv4.S
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aes_armv4.S
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@ Copyright 2007-2018 The OpenSSL Project Authors. All Rights Reserved.
@
@ ====================================================================
@ Written by Andy Polyakov <[email protected]> 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.
@ JW, JUL 2018: Begin defines from taken from arm_arch.h
@ The defines were included through the header.
# if !defined(__ARM_ARCH__)
# if defined(__CC_ARM)
# define __ARM_ARCH__ __TARGET_ARCH_ARM
# if defined(__BIG_ENDIAN)
# define __ARMEB__
# else
# define __ARMEL__
# endif
# elif defined(__GNUC__)
# if defined(__aarch64__)
# define __ARM_ARCH__ 8
# if __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
# define __ARMEB__
# else
# define __ARMEL__
# endif
# elif defined(__ARM_ARCH)
# define __ARM_ARCH__ __ARM_ARCH
# elif defined(__ARM_ARCH_8A__)
# define __ARM_ARCH__ 8
# elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \
defined(__ARM_ARCH_7R__)|| defined(__ARM_ARCH_7M__) || \
defined(__ARM_ARCH_7EM__)
# define __ARM_ARCH__ 7
# elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \
defined(__ARM_ARCH_6K__)|| defined(__ARM_ARCH_6M__) || \
defined(__ARM_ARCH_6Z__)|| defined(__ARM_ARCH_6ZK__) || \
defined(__ARM_ARCH_6T2__)
# define __ARM_ARCH__ 6
# elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) || \
defined(__ARM_ARCH_5E__)|| defined(__ARM_ARCH_5TE__) || \
defined(__ARM_ARCH_5TEJ__)
# define __ARM_ARCH__ 5
# elif defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__)
# define __ARM_ARCH__ 4
# else
# error "unsupported ARM architecture"
# endif
# endif
# endif
# if !defined(__ARM_MAX_ARCH__)
# define __ARM_MAX_ARCH__ __ARM_ARCH__
# endif
# if __ARM_MAX_ARCH__<__ARM_ARCH__
# error "__ARM_MAX_ARCH__ can't be less than __ARM_ARCH__"
# elif __ARM_MAX_ARCH__!=__ARM_ARCH__
# if __ARM_ARCH__<7 && __ARM_MAX_ARCH__>=7 && defined(__ARMEB__)
# error "can't build universal big-endian binary"
# endif
# endif
@ JW, JUL 2018: End defines from taken from arm_arch.h
@ Back to original Cryptogams code
.text
#if defined(__thumb2__) && !defined(__APPLE__)
.syntax unified
.thumb
#else
.code 32
#undef __thumb2__
#endif
.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) {
.globl AES_encrypt
.type AES_encrypt,%function
.align 5
AES_encrypt:
#ifndef __thumb2__
sub r3,pc,#8 @ AES_encrypt
#else
adr r3,.
#endif
stmdb sp!,{r1,r4-r12,lr}
#if defined(__thumb2__) || defined(__APPLE__)
adr r10,AES_Te
#else
sub r10,r3,#AES_encrypt-AES_Te @ Te
#endif
mov r12,r0 @ inp
mov r11,r2
#if __ARM_ARCH__<7
ldrb r0,[r12,#3] @ load input data in endian-neutral
ldrb r4,[r12,#2] @ manner...
ldrb r5,[r12,#1]
ldrb r6,[r12,#0]
orr r0,r0,r4,lsl#8
ldrb r1,[r12,#7]
orr r0,r0,r5,lsl#16
ldrb r4,[r12,#6]
orr r0,r0,r6,lsl#24
ldrb r5,[r12,#5]
ldrb r6,[r12,#4]
orr r1,r1,r4,lsl#8
ldrb r2,[r12,#11]
orr r1,r1,r5,lsl#16
ldrb r4,[r12,#10]
orr r1,r1,r6,lsl#24
ldrb r5,[r12,#9]
ldrb r6,[r12,#8]
orr r2,r2,r4,lsl#8
ldrb r3,[r12,#15]
orr r2,r2,r5,lsl#16
ldrb r4,[r12,#14]
orr r2,r2,r6,lsl#24
ldrb r5,[r12,#13]
ldrb r6,[r12,#12]
orr r3,r3,r4,lsl#8
orr r3,r3,r5,lsl#16
orr r3,r3,r6,lsl#24
#else
ldr r0,[r12,#0]
ldr r1,[r12,#4]
ldr r2,[r12,#8]
ldr r3,[r12,#12]
#ifdef __ARMEL__
rev r0,r0
rev r1,r1
rev r2,r2
rev r3,r3
#endif
#endif
bl _armv4_AES_encrypt
ldr r12,[sp],#4 @ pop out
#if __ARM_ARCH__>=7
#ifdef __ARMEL__
rev r0,r0
rev r1,r1
rev r2,r2
rev r3,r3
#endif
str r0,[r12,#0]
str r1,[r12,#4]
str r2,[r12,#8]
str r3,[r12,#12]
#else
mov r4,r0,lsr#24 @ write output in endian-neutral
mov r5,r0,lsr#16 @ manner...
mov r6,r0,lsr#8
strb r4,[r12,#0]
strb r5,[r12,#1]
mov r4,r1,lsr#24
strb r6,[r12,#2]
mov r5,r1,lsr#16
strb r0,[r12,#3]
mov r6,r1,lsr#8
strb r4,[r12,#4]
strb r5,[r12,#5]
mov r4,r2,lsr#24
strb r6,[r12,#6]
mov r5,r2,lsr#16
strb r1,[r12,#7]
mov r6,r2,lsr#8
strb r4,[r12,#8]
strb r5,[r12,#9]
mov r4,r3,lsr#24
strb r6,[r12,#10]
mov r5,r3,lsr#16
strb r2,[r12,#11]
mov r6,r3,lsr#8
strb r4,[r12,#12]
strb r5,[r12,#13]
strb r6,[r12,#14]
strb r3,[r12,#15]
#endif
#if __ARM_ARCH__>=5
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,pc}
#else
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr}
tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ 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 r11!,{r4,r5,r6,r7}
eor r0,r0,r4
ldr r12,[r11,#240-16]
eor r1,r1,r5
eor r2,r2,r6
eor r3,r3,r7
sub r12,r12,#1
mov lr,#255
and r7,lr,r0
and r8,lr,r0,lsr#8
and r9,lr,r0,lsr#16
mov r0,r0,lsr#24
.Lenc_loop:
ldr r4,[r10,r7,lsl#2] @ Te3[s0>>0]
and r7,lr,r1,lsr#16 @ i0
ldr r5,[r10,r8,lsl#2] @ Te2[s0>>8]
and r8,lr,r1
ldr r6,[r10,r9,lsl#2] @ Te1[s0>>16]
and r9,lr,r1,lsr#8
ldr r0,[r10,r0,lsl#2] @ Te0[s0>>24]
mov r1,r1,lsr#24
ldr r7,[r10,r7,lsl#2] @ Te1[s1>>16]
ldr r8,[r10,r8,lsl#2] @ Te3[s1>>0]
ldr r9,[r10,r9,lsl#2] @ Te2[s1>>8]
eor r0,r0,r7,ror#8
ldr r1,[r10,r1,lsl#2] @ Te0[s1>>24]
and r7,lr,r2,lsr#8 @ i0
eor r5,r5,r8,ror#8
and r8,lr,r2,lsr#16 @ i1
eor r6,r6,r9,ror#8
and r9,lr,r2
ldr r7,[r10,r7,lsl#2] @ Te2[s2>>8]
eor r1,r1,r4,ror#24
ldr r8,[r10,r8,lsl#2] @ Te1[s2>>16]
mov r2,r2,lsr#24
ldr r9,[r10,r9,lsl#2] @ Te3[s2>>0]
eor r0,r0,r7,ror#16
ldr r2,[r10,r2,lsl#2] @ Te0[s2>>24]
and r7,lr,r3 @ i0
eor r1,r1,r8,ror#8
and r8,lr,r3,lsr#8 @ i1
eor r6,r6,r9,ror#16
and r9,lr,r3,lsr#16 @ i2
ldr r7,[r10,r7,lsl#2] @ Te3[s3>>0]
eor r2,r2,r5,ror#16
ldr r8,[r10,r8,lsl#2] @ Te2[s3>>8]
mov r3,r3,lsr#24
ldr r9,[r10,r9,lsl#2] @ Te1[s3>>16]
eor r0,r0,r7,ror#24
ldr r7,[r11],#16
eor r1,r1,r8,ror#16
ldr r3,[r10,r3,lsl#2] @ Te0[s3>>24]
eor r2,r2,r9,ror#8
ldr r4,[r11,#-12]
eor r3,r3,r6,ror#8
ldr r5,[r11,#-8]
eor r0,r0,r7
ldr r6,[r11,#-4]
and r7,lr,r0
eor r1,r1,r4
and r8,lr,r0,lsr#8
eor r2,r2,r5
and r9,lr,r0,lsr#16
eor r3,r3,r6
mov r0,r0,lsr#24
subs r12,r12,#1
bne .Lenc_loop
add r10,r10,#2
ldrb r4,[r10,r7,lsl#2] @ Te4[s0>>0]
and r7,lr,r1,lsr#16 @ i0
ldrb r5,[r10,r8,lsl#2] @ Te4[s0>>8]
and r8,lr,r1
ldrb r6,[r10,r9,lsl#2] @ Te4[s0>>16]
and r9,lr,r1,lsr#8
ldrb r0,[r10,r0,lsl#2] @ Te4[s0>>24]
mov r1,r1,lsr#24
ldrb r7,[r10,r7,lsl#2] @ Te4[s1>>16]
ldrb r8,[r10,r8,lsl#2] @ Te4[s1>>0]
ldrb r9,[r10,r9,lsl#2] @ Te4[s1>>8]
eor r0,r7,r0,lsl#8
ldrb r1,[r10,r1,lsl#2] @ Te4[s1>>24]
and r7,lr,r2,lsr#8 @ i0
eor r5,r8,r5,lsl#8
and r8,lr,r2,lsr#16 @ i1
eor r6,r9,r6,lsl#8
and r9,lr,r2
ldrb r7,[r10,r7,lsl#2] @ Te4[s2>>8]
eor r1,r4,r1,lsl#24
ldrb r8,[r10,r8,lsl#2] @ Te4[s2>>16]
mov r2,r2,lsr#24
ldrb r9,[r10,r9,lsl#2] @ Te4[s2>>0]
eor r0,r7,r0,lsl#8
ldrb r2,[r10,r2,lsl#2] @ Te4[s2>>24]
and r7,lr,r3 @ i0
eor r1,r1,r8,lsl#16
and r8,lr,r3,lsr#8 @ i1
eor r6,r9,r6,lsl#8
and r9,lr,r3,lsr#16 @ i2
ldrb r7,[r10,r7,lsl#2] @ Te4[s3>>0]
eor r2,r5,r2,lsl#24
ldrb r8,[r10,r8,lsl#2] @ Te4[s3>>8]
mov r3,r3,lsr#24
ldrb r9,[r10,r9,lsl#2] @ Te4[s3>>16]
eor r0,r7,r0,lsl#8
ldr r7,[r11,#0]
ldrb r3,[r10,r3,lsl#2] @ Te4[s3>>24]
eor r1,r1,r8,lsl#8
ldr r4,[r11,#4]
eor r2,r2,r9,lsl#16
ldr r5,[r11,#8]
eor r3,r6,r3,lsl#24
ldr r6,[r11,#12]
eor r0,r0,r7
eor r1,r1,r4
eor r2,r2,r5
eor r3,r3,r6
sub r10,r10,#2
ldr pc,[sp],#4 @ pop and return
.size _armv4_AES_encrypt,.-_armv4_AES_encrypt
.globl AES_set_encrypt_key
.type AES_set_encrypt_key,%function
.align 5
AES_set_encrypt_key:
_armv4_AES_set_encrypt_key:
#ifndef __thumb2__
sub r3,pc,#8 @ AES_set_encrypt_key
#else
adr r3,.
#endif
teq r0,#0
#ifdef __thumb2__
itt eq @ Thumb2 thing, sanity check in ARM
#endif
moveq r0,#-1
beq .Labrt
teq r2,#0
#ifdef __thumb2__
itt eq @ Thumb2 thing, sanity check in ARM
#endif
moveq r0,#-1
beq .Labrt
teq r1,#128
beq .Lok
teq r1,#192
beq .Lok
teq r1,#256
#ifdef __thumb2__
itt ne @ Thumb2 thing, sanity check in ARM
#endif
movne r0,#-1
bne .Labrt
.Lok: stmdb sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr}
mov r12,r0 @ inp
mov lr,r1 @ bits
mov r11,r2 @ key
#if defined(__thumb2__) || defined(__APPLE__)
adr r10,AES_Te+1024 @ Te4
#else
sub r10,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4
#endif
#if __ARM_ARCH__<7
ldrb r0,[r12,#3] @ load input data in endian-neutral
ldrb r4,[r12,#2] @ manner...
ldrb r5,[r12,#1]
ldrb r6,[r12,#0]
orr r0,r0,r4,lsl#8
ldrb r1,[r12,#7]
orr r0,r0,r5,lsl#16
ldrb r4,[r12,#6]
orr r0,r0,r6,lsl#24
ldrb r5,[r12,#5]
ldrb r6,[r12,#4]
orr r1,r1,r4,lsl#8
ldrb r2,[r12,#11]
orr r1,r1,r5,lsl#16
ldrb r4,[r12,#10]
orr r1,r1,r6,lsl#24
ldrb r5,[r12,#9]
ldrb r6,[r12,#8]
orr r2,r2,r4,lsl#8
ldrb r3,[r12,#15]
orr r2,r2,r5,lsl#16
ldrb r4,[r12,#14]
orr r2,r2,r6,lsl#24
ldrb r5,[r12,#13]
ldrb r6,[r12,#12]
orr r3,r3,r4,lsl#8
str r0,[r11],#16
orr r3,r3,r5,lsl#16
str r1,[r11,#-12]
orr r3,r3,r6,lsl#24
str r2,[r11,#-8]
str r3,[r11,#-4]
#else
ldr r0,[r12,#0]
ldr r1,[r12,#4]
ldr r2,[r12,#8]
ldr r3,[r12,#12]
#ifdef __ARMEL__
rev r0,r0
rev r1,r1
rev r2,r2
rev r3,r3
#endif
str r0,[r11],#16
str r1,[r11,#-12]
str r2,[r11,#-8]
str r3,[r11,#-4]
#endif
teq lr,#128
bne .Lnot128
mov r12,#10
str r12,[r11,#240-16]
add r6,r10,#256 @ rcon
mov lr,#255
.L128_loop:
and r5,lr,r3,lsr#24
and r7,lr,r3,lsr#16
ldrb r5,[r10,r5]
and r8,lr,r3,lsr#8
ldrb r7,[r10,r7]
and r9,lr,r3
ldrb r8,[r10,r8]
orr r5,r5,r7,lsl#24
ldrb r9,[r10,r9]
orr r5,r5,r8,lsl#16
ldr r4,[r6],#4 @ rcon[i++]
orr r5,r5,r9,lsl#8
eor r5,r5,r4
eor r0,r0,r5 @ rk[4]=rk[0]^...
eor r1,r1,r0 @ rk[5]=rk[1]^rk[4]
str r0,[r11],#16
eor r2,r2,r1 @ rk[6]=rk[2]^rk[5]
str r1,[r11,#-12]
eor r3,r3,r2 @ rk[7]=rk[3]^rk[6]
str r2,[r11,#-8]
subs r12,r12,#1
str r3,[r11,#-4]
bne .L128_loop
sub r2,r11,#176
b .Ldone
.Lnot128:
#if __ARM_ARCH__<7
ldrb r8,[r12,#19]
ldrb r4,[r12,#18]
ldrb r5,[r12,#17]
ldrb r6,[r12,#16]
orr r8,r8,r4,lsl#8
ldrb r9,[r12,#23]
orr r8,r8,r5,lsl#16
ldrb r4,[r12,#22]
orr r8,r8,r6,lsl#24
ldrb r5,[r12,#21]
ldrb r6,[r12,#20]
orr r9,r9,r4,lsl#8
orr r9,r9,r5,lsl#16
str r8,[r11],#8
orr r9,r9,r6,lsl#24
str r9,[r11,#-4]
#else
ldr r8,[r12,#16]
ldr r9,[r12,#20]
#ifdef __ARMEL__
rev r8,r8
rev r9,r9
#endif
str r8,[r11],#8
str r9,[r11,#-4]
#endif
teq lr,#192
bne .Lnot192
mov r12,#12
str r12,[r11,#240-24]
add r6,r10,#256 @ rcon
mov lr,#255
mov r12,#8
.L192_loop:
and r5,lr,r9,lsr#24
and r7,lr,r9,lsr#16
ldrb r5,[r10,r5]
and r8,lr,r9,lsr#8
ldrb r7,[r10,r7]
and r9,lr,r9
ldrb r8,[r10,r8]
orr r5,r5,r7,lsl#24
ldrb r9,[r10,r9]
orr r5,r5,r8,lsl#16
ldr r4,[r6],#4 @ rcon[i++]
orr r5,r5,r9,lsl#8
eor r9,r5,r4
eor r0,r0,r9 @ rk[6]=rk[0]^...
eor r1,r1,r0 @ rk[7]=rk[1]^rk[6]
str r0,[r11],#24
eor r2,r2,r1 @ rk[8]=rk[2]^rk[7]
str r1,[r11,#-20]
eor r3,r3,r2 @ rk[9]=rk[3]^rk[8]
str r2,[r11,#-16]
subs r12,r12,#1
str r3,[r11,#-12]
#ifdef __thumb2__
itt eq @ Thumb2 thing, sanity check in ARM
#endif
subeq r2,r11,#216
beq .Ldone
ldr r7,[r11,#-32]
ldr r8,[r11,#-28]
eor r7,r7,r3 @ rk[10]=rk[4]^rk[9]
eor r9,r8,r7 @ rk[11]=rk[5]^rk[10]
str r7,[r11,#-8]
str r9,[r11,#-4]
b .L192_loop
.Lnot192:
#if __ARM_ARCH__<7
ldrb r8,[r12,#27]
ldrb r4,[r12,#26]
ldrb r5,[r12,#25]
ldrb r6,[r12,#24]
orr r8,r8,r4,lsl#8
ldrb r9,[r12,#31]
orr r8,r8,r5,lsl#16
ldrb r4,[r12,#30]
orr r8,r8,r6,lsl#24
ldrb r5,[r12,#29]
ldrb r6,[r12,#28]
orr r9,r9,r4,lsl#8
orr r9,r9,r5,lsl#16
str r8,[r11],#8
orr r9,r9,r6,lsl#24
str r9,[r11,#-4]
#else
ldr r8,[r12,#24]
ldr r9,[r12,#28]
#ifdef __ARMEL__
rev r8,r8
rev r9,r9
#endif
str r8,[r11],#8
str r9,[r11,#-4]
#endif
mov r12,#14
str r12,[r11,#240-32]
add r6,r10,#256 @ rcon
mov lr,#255
mov r12,#7
.L256_loop:
and r5,lr,r9,lsr#24
and r7,lr,r9,lsr#16
ldrb r5,[r10,r5]
and r8,lr,r9,lsr#8
ldrb r7,[r10,r7]
and r9,lr,r9
ldrb r8,[r10,r8]
orr r5,r5,r7,lsl#24
ldrb r9,[r10,r9]
orr r5,r5,r8,lsl#16
ldr r4,[r6],#4 @ rcon[i++]
orr r5,r5,r9,lsl#8
eor r9,r5,r4
eor r0,r0,r9 @ rk[8]=rk[0]^...
eor r1,r1,r0 @ rk[9]=rk[1]^rk[8]
str r0,[r11],#32
eor r2,r2,r1 @ rk[10]=rk[2]^rk[9]
str r1,[r11,#-28]
eor r3,r3,r2 @ rk[11]=rk[3]^rk[10]
str r2,[r11,#-24]
subs r12,r12,#1
str r3,[r11,#-20]
#ifdef __thumb2__
itt eq @ Thumb2 thing, sanity check in ARM
#endif
subeq r2,r11,#256
beq .Ldone
and r5,lr,r3
and r7,lr,r3,lsr#8
ldrb r5,[r10,r5]
and r8,lr,r3,lsr#16
ldrb r7,[r10,r7]
and r9,lr,r3,lsr#24
ldrb r8,[r10,r8]
orr r5,r5,r7,lsl#8
ldrb r9,[r10,r9]
orr r5,r5,r8,lsl#16
ldr r4,[r11,#-48]
orr r5,r5,r9,lsl#24
ldr r7,[r11,#-44]
ldr r8,[r11,#-40]
eor r4,r4,r5 @ rk[12]=rk[4]^...
ldr r9,[r11,#-36]
eor r7,r7,r4 @ rk[13]=rk[5]^rk[12]
str r4,[r11,#-16]
eor r8,r8,r7 @ rk[14]=rk[6]^rk[13]
str r7,[r11,#-12]
eor r9,r9,r8 @ rk[15]=rk[7]^rk[14]
str r8,[r11,#-8]
str r9,[r11,#-4]
b .L256_loop
.align 2
.Ldone: mov r0,#0
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr}
.Labrt:
#if __ARM_ARCH__>=5
bx lr @ .word 0xe12fff1e
#else
tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
#endif
.size AES_set_encrypt_key,.-AES_set_encrypt_key
.globl AES_set_decrypt_key
.type AES_set_decrypt_key,%function
.align 5
AES_set_decrypt_key:
str lr,[sp,#-4]! @ push lr
bl _armv4_AES_set_encrypt_key
teq r0,#0
ldr lr,[sp],#4 @ pop lr
bne .Labrt
mov r0,r2 @ AES_set_encrypt_key preserves r2,
mov r1,r2 @ which is AES_KEY *key
b _armv4_AES_set_enc2dec_key
.size AES_set_decrypt_key,.-AES_set_decrypt_key
@ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out)
.globl AES_set_enc2dec_key
.type AES_set_enc2dec_key,%function
.align 5
AES_set_enc2dec_key:
_armv4_AES_set_enc2dec_key:
stmdb sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr}
ldr r12,[r0,#240]
mov r7,r0 @ input
add r8,r0,r12,lsl#4
mov r11,r1 @ output
add r10,r1,r12,lsl#4
str r12,[r1,#240]
.Linv: ldr r0,[r7],#16
ldr r1,[r7,#-12]
ldr r2,[r7,#-8]
ldr r3,[r7,#-4]
ldr r4,[r8],#-16
ldr r5,[r8,#16+4]
ldr r6,[r8,#16+8]
ldr r9,[r8,#16+12]
str r0,[r10],#-16
str r1,[r10,#16+4]
str r2,[r10,#16+8]
str r3,[r10,#16+12]
str r4,[r11],#16
str r5,[r11,#-12]
str r6,[r11,#-8]
str r9,[r11,#-4]
teq r7,r8
bne .Linv
ldr r0,[r7]
ldr r1,[r7,#4]
ldr r2,[r7,#8]
ldr r3,[r7,#12]
str r0,[r11]
str r1,[r11,#4]
str r2,[r11,#8]
str r3,[r11,#12]
sub r11,r11,r12,lsl#3
ldr r0,[r11,#16]! @ prefetch tp1
mov r7,#0x80
mov r8,#0x1b
orr r7,r7,#0x8000
orr r8,r8,#0x1b00
orr r7,r7,r7,lsl#16
orr r8,r8,r8,lsl#16
sub r12,r12,#1
mvn r9,r7
mov r12,r12,lsl#2 @ (rounds-1)*4
.Lmix: and r4,r0,r7
and r1,r0,r9
sub r4,r4,r4,lsr#7
and r4,r4,r8
eor r1,r4,r1,lsl#1 @ tp2
and r4,r1,r7
and r2,r1,r9
sub r4,r4,r4,lsr#7
and r4,r4,r8
eor r2,r4,r2,lsl#1 @ tp4
and r4,r2,r7
and r3,r2,r9
sub r4,r4,r4,lsr#7
and r4,r4,r8
eor r3,r4,r3,lsl#1 @ tp8
eor r4,r1,r2
eor r5,r0,r3 @ tp9
eor r4,r4,r3 @ tpe
eor r4,r4,r1,ror#24
eor r4,r4,r5,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
eor r4,r4,r2,ror#16
eor r4,r4,r5,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
eor r4,r4,r5,ror#8 @ ^= ROTATE(tp9,24)
ldr r0,[r11,#4] @ prefetch tp1
str r4,[r11],#4
subs r12,r12,#1
bne .Lmix
mov r0,#0
#if __ARM_ARCH__>=5
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,pc}
#else
ldmia sp!,{r4,r5,r6,r7,r8,r9,r10,r11,r12,lr}
tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
#endif
.size AES_set_enc2dec_key,.-AES_set_enc2dec_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) {
.globl AES_decrypt
.type AES_decrypt,%function
.align 5
AES_decrypt:
#ifndef __thumb2__
sub r3,pc,#8 @ AES_decrypt
#else
adr r3,.
#endif
stmdb sp!,{r1,r4-r12,lr}
#if defined(__thumb2__) || defined(__APPLE__)
adr r10,AES_Td
#else
sub r10,r3,#AES_decrypt-AES_Td @ Td
#endif
mov r12,r0 @ inp
mov r11,r2
#if __ARM_ARCH__<7