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|
// This file is generated from a similarly-named Perl script in the BoringSSL
// source tree. Do not edit by hand.
#if !defined(__has_feature)
#define __has_feature(x) 0
#endif
#if __has_feature(memory_sanitizer) && !defined(OPENSSL_NO_ASM)
#define OPENSSL_NO_ASM
#endif
#if !defined(OPENSSL_NO_ASM)
#if defined(__aarch64__)
#include <GFp/arm_arch.h>
.section .rodata
.type _vpaes_consts,%object
.align 7 // totally strategic alignment
_vpaes_consts:
.Lk_mc_forward: // mc_forward
.quad 0x0407060500030201, 0x0C0F0E0D080B0A09
.quad 0x080B0A0904070605, 0x000302010C0F0E0D
.quad 0x0C0F0E0D080B0A09, 0x0407060500030201
.quad 0x000302010C0F0E0D, 0x080B0A0904070605
.Lk_mc_backward: // mc_backward
.quad 0x0605040702010003, 0x0E0D0C0F0A09080B
.quad 0x020100030E0D0C0F, 0x0A09080B06050407
.quad 0x0E0D0C0F0A09080B, 0x0605040702010003
.quad 0x0A09080B06050407, 0x020100030E0D0C0F
.Lk_sr: // sr
.quad 0x0706050403020100, 0x0F0E0D0C0B0A0908
.quad 0x030E09040F0A0500, 0x0B06010C07020D08
.quad 0x0F060D040B020900, 0x070E050C030A0108
.quad 0x0B0E0104070A0D00, 0x0306090C0F020508
//
// "Hot" constants
//
.Lk_inv: // inv, inva
.quad 0x0E05060F0D080180, 0x040703090A0B0C02
.quad 0x01040A060F0B0780, 0x030D0E0C02050809
.Lk_ipt: // input transform (lo, hi)
.quad 0xC2B2E8985A2A7000, 0xCABAE09052227808
.quad 0x4C01307D317C4D00, 0xCD80B1FCB0FDCC81
.Lk_sbo: // sbou, sbot
.quad 0xD0D26D176FBDC700, 0x15AABF7AC502A878
.quad 0xCFE474A55FBB6A00, 0x8E1E90D1412B35FA
.Lk_sb1: // sb1u, sb1t
.quad 0x3618D415FAE22300, 0x3BF7CCC10D2ED9EF
.quad 0xB19BE18FCB503E00, 0xA5DF7A6E142AF544
.Lk_sb2: // sb2u, sb2t
.quad 0x69EB88400AE12900, 0xC2A163C8AB82234A
.quad 0xE27A93C60B712400, 0x5EB7E955BC982FCD
//
// Key schedule constants
//
.Lk_dksd: // decryption key schedule: invskew x*D
.quad 0xFEB91A5DA3E44700, 0x0740E3A45A1DBEF9
.quad 0x41C277F4B5368300, 0x5FDC69EAAB289D1E
.Lk_dksb: // decryption key schedule: invskew x*B
.quad 0x9A4FCA1F8550D500, 0x03D653861CC94C99
.quad 0x115BEDA7B6FC4A00, 0xD993256F7E3482C8
.Lk_dkse: // decryption key schedule: invskew x*E + 0x63
.quad 0xD5031CCA1FC9D600, 0x53859A4C994F5086
.quad 0xA23196054FDC7BE8, 0xCD5EF96A20B31487
.Lk_dks9: // decryption key schedule: invskew x*9
.quad 0xB6116FC87ED9A700, 0x4AED933482255BFC
.quad 0x4576516227143300, 0x8BB89FACE9DAFDCE
.Lk_rcon: // rcon
.quad 0x1F8391B9AF9DEEB6, 0x702A98084D7C7D81
.Lk_opt: // output transform
.quad 0xFF9F4929D6B66000, 0xF7974121DEBE6808
.quad 0x01EDBD5150BCEC00, 0xE10D5DB1B05C0CE0
.Lk_deskew: // deskew tables: inverts the sbox's "skew"
.quad 0x07E4A34047A4E300, 0x1DFEB95A5DBEF91A
.quad 0x5F36B5DC83EA6900, 0x2841C2ABF49D1E77
.byte 86,101,99,116,111,114,32,80,101,114,109,117,116,97,116,105,111,110,32,65,69,83,32,102,111,114,32,65,82,77,118,56,44,32,77,105,107,101,32,72,97,109,98,117,114,103,32,40,83,116,97,110,102,111,114,100,32,85,110,105,118,101,114,115,105,116,121,41,0
.align 2
.size _vpaes_consts,.-_vpaes_consts
.align 6
.text
##
## _aes_preheat
##
## Fills register %r10 -> .aes_consts (so you can -fPIC)
## and %xmm9-%xmm15 as specified below.
##
.type _vpaes_encrypt_preheat,%function
.align 4
_vpaes_encrypt_preheat:
adrp x10, .Lk_inv
add x10, x10, :lo12:.Lk_inv
movi v17.16b, #0x0f
ld1 {v18.2d,v19.2d}, [x10],#32 // .Lk_inv
ld1 {v20.2d,v21.2d,v22.2d,v23.2d}, [x10],#64 // .Lk_ipt, .Lk_sbo
ld1 {v24.2d,v25.2d,v26.2d,v27.2d}, [x10] // .Lk_sb1, .Lk_sb2
ret
.size _vpaes_encrypt_preheat,.-_vpaes_encrypt_preheat
##
## _aes_encrypt_core
##
## AES-encrypt %xmm0.
##
## Inputs:
## %xmm0 = input
## %xmm9-%xmm15 as in _vpaes_preheat
## (%rdx) = scheduled keys
##
## Output in %xmm0
## Clobbers %xmm1-%xmm5, %r9, %r10, %r11, %rax
## Preserves %xmm6 - %xmm8 so you get some local vectors
##
##
.type _vpaes_encrypt_core,%function
.align 4
_vpaes_encrypt_core:
mov x9, x2
ldr w8, [x2,#240] // pull rounds
adrp x11, .Lk_mc_forward+16
add x11, x11, :lo12:.Lk_mc_forward+16
// vmovdqa .Lk_ipt(%rip), %xmm2 # iptlo
ld1 {v16.2d}, [x9], #16 // vmovdqu (%r9), %xmm5 # round0 key
and v1.16b, v7.16b, v17.16b // vpand %xmm9, %xmm0, %xmm1
ushr v0.16b, v7.16b, #4 // vpsrlb $4, %xmm0, %xmm0
tbl v1.16b, {v20.16b}, v1.16b // vpshufb %xmm1, %xmm2, %xmm1
// vmovdqa .Lk_ipt+16(%rip), %xmm3 # ipthi
tbl v2.16b, {v21.16b}, v0.16b // vpshufb %xmm0, %xmm3, %xmm2
eor v0.16b, v1.16b, v16.16b // vpxor %xmm5, %xmm1, %xmm0
eor v0.16b, v0.16b, v2.16b // vpxor %xmm2, %xmm0, %xmm0
b .Lenc_entry
.align 4
.Lenc_loop:
// middle of middle round
add x10, x11, #0x40
tbl v4.16b, {v25.16b}, v2.16b // vpshufb %xmm2, %xmm13, %xmm4 # 4 = sb1u
ld1 {v1.2d}, [x11], #16 // vmovdqa -0x40(%r11,%r10), %xmm1 # .Lk_mc_forward[]
tbl v0.16b, {v24.16b}, v3.16b // vpshufb %xmm3, %xmm12, %xmm0 # 0 = sb1t
eor v4.16b, v4.16b, v16.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k
tbl v5.16b, {v27.16b}, v2.16b // vpshufb %xmm2, %xmm15, %xmm5 # 4 = sb2u
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = A
tbl v2.16b, {v26.16b}, v3.16b // vpshufb %xmm3, %xmm14, %xmm2 # 2 = sb2t
ld1 {v4.2d}, [x10] // vmovdqa (%r11,%r10), %xmm4 # .Lk_mc_backward[]
tbl v3.16b, {v0.16b}, v1.16b // vpshufb %xmm1, %xmm0, %xmm3 # 0 = B
eor v2.16b, v2.16b, v5.16b // vpxor %xmm5, %xmm2, %xmm2 # 2 = 2A
tbl v0.16b, {v0.16b}, v4.16b // vpshufb %xmm4, %xmm0, %xmm0 # 3 = D
eor v3.16b, v3.16b, v2.16b // vpxor %xmm2, %xmm3, %xmm3 # 0 = 2A+B
tbl v4.16b, {v3.16b}, v1.16b // vpshufb %xmm1, %xmm3, %xmm4 # 0 = 2B+C
eor v0.16b, v0.16b, v3.16b // vpxor %xmm3, %xmm0, %xmm0 # 3 = 2A+B+D
and x11, x11, #~(1<<6) // and $0x30, %r11 # ... mod 4
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = 2A+3B+C+D
sub w8, w8, #1 // nr--
.Lenc_entry:
// top of round
and v1.16b, v0.16b, v17.16b // vpand %xmm0, %xmm9, %xmm1 # 0 = k
ushr v0.16b, v0.16b, #4 // vpsrlb $4, %xmm0, %xmm0 # 1 = i
tbl v5.16b, {v19.16b}, v1.16b // vpshufb %xmm1, %xmm11, %xmm5 # 2 = a/k
eor v1.16b, v1.16b, v0.16b // vpxor %xmm0, %xmm1, %xmm1 # 0 = j
tbl v3.16b, {v18.16b}, v0.16b // vpshufb %xmm0, %xmm10, %xmm3 # 3 = 1/i
tbl v4.16b, {v18.16b}, v1.16b // vpshufb %xmm1, %xmm10, %xmm4 # 4 = 1/j
eor v3.16b, v3.16b, v5.16b // vpxor %xmm5, %xmm3, %xmm3 # 3 = iak = 1/i + a/k
eor v4.16b, v4.16b, v5.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = jak = 1/j + a/k
tbl v2.16b, {v18.16b}, v3.16b // vpshufb %xmm3, %xmm10, %xmm2 # 2 = 1/iak
tbl v3.16b, {v18.16b}, v4.16b // vpshufb %xmm4, %xmm10, %xmm3 # 3 = 1/jak
eor v2.16b, v2.16b, v1.16b // vpxor %xmm1, %xmm2, %xmm2 # 2 = io
eor v3.16b, v3.16b, v0.16b // vpxor %xmm0, %xmm3, %xmm3 # 3 = jo
ld1 {v16.2d}, [x9],#16 // vmovdqu (%r9), %xmm5
cbnz w8, .Lenc_loop
// middle of last round
add x10, x11, #0x80
// vmovdqa -0x60(%r10), %xmm4 # 3 : sbou .Lk_sbo
// vmovdqa -0x50(%r10), %xmm0 # 0 : sbot .Lk_sbo+16
tbl v4.16b, {v22.16b}, v2.16b // vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbou
ld1 {v1.2d}, [x10] // vmovdqa 0x40(%r11,%r10), %xmm1 # .Lk_sr[]
tbl v0.16b, {v23.16b}, v3.16b // vpshufb %xmm3, %xmm0, %xmm0 # 0 = sb1t
eor v4.16b, v4.16b, v16.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = A
tbl v0.16b, {v0.16b}, v1.16b // vpshufb %xmm1, %xmm0, %xmm0
ret
.size _vpaes_encrypt_core,.-_vpaes_encrypt_core
.globl GFp_vpaes_encrypt
.hidden GFp_vpaes_encrypt
.type GFp_vpaes_encrypt,%function
.align 4
GFp_vpaes_encrypt:
AARCH64_SIGN_LINK_REGISTER
stp x29,x30,[sp,#-16]!
add x29,sp,#0
ld1 {v7.16b}, [x0]
bl _vpaes_encrypt_preheat
bl _vpaes_encrypt_core
st1 {v0.16b}, [x1]
ldp x29,x30,[sp],#16
AARCH64_VALIDATE_LINK_REGISTER
ret
.size GFp_vpaes_encrypt,.-GFp_vpaes_encrypt
.type _vpaes_encrypt_2x,%function
.align 4
_vpaes_encrypt_2x:
mov x9, x2
ldr w8, [x2,#240] // pull rounds
adrp x11, .Lk_mc_forward+16
add x11, x11, :lo12:.Lk_mc_forward+16
// vmovdqa .Lk_ipt(%rip), %xmm2 # iptlo
ld1 {v16.2d}, [x9], #16 // vmovdqu (%r9), %xmm5 # round0 key
and v1.16b, v14.16b, v17.16b // vpand %xmm9, %xmm0, %xmm1
ushr v0.16b, v14.16b, #4 // vpsrlb $4, %xmm0, %xmm0
and v9.16b, v15.16b, v17.16b
ushr v8.16b, v15.16b, #4
tbl v1.16b, {v20.16b}, v1.16b // vpshufb %xmm1, %xmm2, %xmm1
tbl v9.16b, {v20.16b}, v9.16b
// vmovdqa .Lk_ipt+16(%rip), %xmm3 # ipthi
tbl v2.16b, {v21.16b}, v0.16b // vpshufb %xmm0, %xmm3, %xmm2
tbl v10.16b, {v21.16b}, v8.16b
eor v0.16b, v1.16b, v16.16b // vpxor %xmm5, %xmm1, %xmm0
eor v8.16b, v9.16b, v16.16b
eor v0.16b, v0.16b, v2.16b // vpxor %xmm2, %xmm0, %xmm0
eor v8.16b, v8.16b, v10.16b
b .Lenc_2x_entry
.align 4
.Lenc_2x_loop:
// middle of middle round
add x10, x11, #0x40
tbl v4.16b, {v25.16b}, v2.16b // vpshufb %xmm2, %xmm13, %xmm4 # 4 = sb1u
tbl v12.16b, {v25.16b}, v10.16b
ld1 {v1.2d}, [x11], #16 // vmovdqa -0x40(%r11,%r10), %xmm1 # .Lk_mc_forward[]
tbl v0.16b, {v24.16b}, v3.16b // vpshufb %xmm3, %xmm12, %xmm0 # 0 = sb1t
tbl v8.16b, {v24.16b}, v11.16b
eor v4.16b, v4.16b, v16.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k
eor v12.16b, v12.16b, v16.16b
tbl v5.16b, {v27.16b}, v2.16b // vpshufb %xmm2, %xmm15, %xmm5 # 4 = sb2u
tbl v13.16b, {v27.16b}, v10.16b
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = A
eor v8.16b, v8.16b, v12.16b
tbl v2.16b, {v26.16b}, v3.16b // vpshufb %xmm3, %xmm14, %xmm2 # 2 = sb2t
tbl v10.16b, {v26.16b}, v11.16b
ld1 {v4.2d}, [x10] // vmovdqa (%r11,%r10), %xmm4 # .Lk_mc_backward[]
tbl v3.16b, {v0.16b}, v1.16b // vpshufb %xmm1, %xmm0, %xmm3 # 0 = B
tbl v11.16b, {v8.16b}, v1.16b
eor v2.16b, v2.16b, v5.16b // vpxor %xmm5, %xmm2, %xmm2 # 2 = 2A
eor v10.16b, v10.16b, v13.16b
tbl v0.16b, {v0.16b}, v4.16b // vpshufb %xmm4, %xmm0, %xmm0 # 3 = D
tbl v8.16b, {v8.16b}, v4.16b
eor v3.16b, v3.16b, v2.16b // vpxor %xmm2, %xmm3, %xmm3 # 0 = 2A+B
eor v11.16b, v11.16b, v10.16b
tbl v4.16b, {v3.16b}, v1.16b // vpshufb %xmm1, %xmm3, %xmm4 # 0 = 2B+C
tbl v12.16b, {v11.16b},v1.16b
eor v0.16b, v0.16b, v3.16b // vpxor %xmm3, %xmm0, %xmm0 # 3 = 2A+B+D
eor v8.16b, v8.16b, v11.16b
and x11, x11, #~(1<<6) // and $0x30, %r11 # ... mod 4
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = 2A+3B+C+D
eor v8.16b, v8.16b, v12.16b
sub w8, w8, #1 // nr--
.Lenc_2x_entry:
// top of round
and v1.16b, v0.16b, v17.16b // vpand %xmm0, %xmm9, %xmm1 # 0 = k
ushr v0.16b, v0.16b, #4 // vpsrlb $4, %xmm0, %xmm0 # 1 = i
and v9.16b, v8.16b, v17.16b
ushr v8.16b, v8.16b, #4
tbl v5.16b, {v19.16b},v1.16b // vpshufb %xmm1, %xmm11, %xmm5 # 2 = a/k
tbl v13.16b, {v19.16b},v9.16b
eor v1.16b, v1.16b, v0.16b // vpxor %xmm0, %xmm1, %xmm1 # 0 = j
eor v9.16b, v9.16b, v8.16b
tbl v3.16b, {v18.16b},v0.16b // vpshufb %xmm0, %xmm10, %xmm3 # 3 = 1/i
tbl v11.16b, {v18.16b},v8.16b
tbl v4.16b, {v18.16b},v1.16b // vpshufb %xmm1, %xmm10, %xmm4 # 4 = 1/j
tbl v12.16b, {v18.16b},v9.16b
eor v3.16b, v3.16b, v5.16b // vpxor %xmm5, %xmm3, %xmm3 # 3 = iak = 1/i + a/k
eor v11.16b, v11.16b, v13.16b
eor v4.16b, v4.16b, v5.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = jak = 1/j + a/k
eor v12.16b, v12.16b, v13.16b
tbl v2.16b, {v18.16b},v3.16b // vpshufb %xmm3, %xmm10, %xmm2 # 2 = 1/iak
tbl v10.16b, {v18.16b},v11.16b
tbl v3.16b, {v18.16b},v4.16b // vpshufb %xmm4, %xmm10, %xmm3 # 3 = 1/jak
tbl v11.16b, {v18.16b},v12.16b
eor v2.16b, v2.16b, v1.16b // vpxor %xmm1, %xmm2, %xmm2 # 2 = io
eor v10.16b, v10.16b, v9.16b
eor v3.16b, v3.16b, v0.16b // vpxor %xmm0, %xmm3, %xmm3 # 3 = jo
eor v11.16b, v11.16b, v8.16b
ld1 {v16.2d}, [x9],#16 // vmovdqu (%r9), %xmm5
cbnz w8, .Lenc_2x_loop
// middle of last round
add x10, x11, #0x80
// vmovdqa -0x60(%r10), %xmm4 # 3 : sbou .Lk_sbo
// vmovdqa -0x50(%r10), %xmm0 # 0 : sbot .Lk_sbo+16
tbl v4.16b, {v22.16b}, v2.16b // vpshufb %xmm2, %xmm4, %xmm4 # 4 = sbou
tbl v12.16b, {v22.16b}, v10.16b
ld1 {v1.2d}, [x10] // vmovdqa 0x40(%r11,%r10), %xmm1 # .Lk_sr[]
tbl v0.16b, {v23.16b}, v3.16b // vpshufb %xmm3, %xmm0, %xmm0 # 0 = sb1t
tbl v8.16b, {v23.16b}, v11.16b
eor v4.16b, v4.16b, v16.16b // vpxor %xmm5, %xmm4, %xmm4 # 4 = sb1u + k
eor v12.16b, v12.16b, v16.16b
eor v0.16b, v0.16b, v4.16b // vpxor %xmm4, %xmm0, %xmm0 # 0 = A
eor v8.16b, v8.16b, v12.16b
tbl v0.16b, {v0.16b},v1.16b // vpshufb %xmm1, %xmm0, %xmm0
tbl v1.16b, {v8.16b},v1.16b
ret
.size _vpaes_encrypt_2x,.-_vpaes_encrypt_2x
########################################################
## ##
## AES key schedule ##
## ##
########################################################
.type _vpaes_key_preheat,%function
.align 4
_vpaes_key_preheat:
adrp x10, .Lk_inv
add x10, x10, :lo12:.Lk_inv
movi v16.16b, #0x5b // .Lk_s63
adrp x11, .Lk_sb1
add x11, x11, :lo12:.Lk_sb1
movi v17.16b, #0x0f // .Lk_s0F
ld1 {v18.2d,v19.2d,v20.2d,v21.2d}, [x10] // .Lk_inv, .Lk_ipt
adrp x10, .Lk_dksd
add x10, x10, :lo12:.Lk_dksd
ld1 {v22.2d,v23.2d}, [x11] // .Lk_sb1
adrp x11, .Lk_mc_forward
add x11, x11, :lo12:.Lk_mc_forward
ld1 {v24.2d,v25.2d,v26.2d,v27.2d}, [x10],#64 // .Lk_dksd, .Lk_dksb
ld1 {v28.2d,v29.2d,v30.2d,v31.2d}, [x10],#64 // .Lk_dkse, .Lk_dks9
ld1 {v8.2d}, [x10] // .Lk_rcon
ld1 {v9.2d}, [x11] // .Lk_mc_forward[0]
ret
.size _vpaes_key_preheat,.-_vpaes_key_preheat
.type _vpaes_schedule_core,%function
.align 4
_vpaes_schedule_core:
AARCH64_SIGN_LINK_REGISTER
stp x29, x30, [sp,#-16]!
add x29,sp,#0
bl _vpaes_key_preheat // load the tables
ld1 {v0.16b}, [x0],#16 // vmovdqu (%rdi), %xmm0 # load key (unaligned)
// input transform
mov v3.16b, v0.16b // vmovdqa %xmm0, %xmm3
bl _vpaes_schedule_transform
mov v7.16b, v0.16b // vmovdqa %xmm0, %xmm7
adrp x10, .Lk_sr // lea .Lk_sr(%rip),%r10
add x10, x10, :lo12:.Lk_sr
add x8, x8, x10
// encrypting, output zeroth round key after transform
st1 {v0.2d}, [x2] // vmovdqu %xmm0, (%rdx)
cmp w1, #192 // cmp $192, %esi
b.hi .Lschedule_256
b.eq .Lschedule_192
// 128: fall though
##
## .schedule_128
##
## 128-bit specific part of key schedule.
##
## This schedule is really simple, because all its parts
## are accomplished by the subroutines.
##
.Lschedule_128:
mov x0, #10 // mov $10, %esi
.Loop_schedule_128:
sub x0, x0, #1 // dec %esi
bl _vpaes_schedule_round
cbz x0, .Lschedule_mangle_last
bl _vpaes_schedule_mangle // write output
b .Loop_schedule_128
##
## .aes_schedule_192
##
## 192-bit specific part of key schedule.
##
## The main body of this schedule is the same as the 128-bit
## schedule, but with more smearing. The long, high side is
## stored in %xmm7 as before, and the short, low side is in
## the high bits of %xmm6.
##
## This schedule is somewhat nastier, however, because each
## round produces 192 bits of key material, or 1.5 round keys.
## Therefore, on each cycle we do 2 rounds and produce 3 round
## keys.
##
.align 4
.Lschedule_192:
sub x0, x0, #8
ld1 {v0.16b}, [x0] // vmovdqu 8(%rdi),%xmm0 # load key part 2 (very unaligned)
bl _vpaes_schedule_transform // input transform
mov v6.16b, v0.16b // vmovdqa %xmm0, %xmm6 # save short part
eor v4.16b, v4.16b, v4.16b // vpxor %xmm4, %xmm4, %xmm4 # clear 4
ins v6.d[0], v4.d[0] // vmovhlps %xmm4, %xmm6, %xmm6 # clobber low side with zeros
mov x0, #4 // mov $4, %esi
.Loop_schedule_192:
sub x0, x0, #1 // dec %esi
bl _vpaes_schedule_round
ext v0.16b, v6.16b, v0.16b, #8 // vpalignr $8,%xmm6,%xmm0,%xmm0
bl _vpaes_schedule_mangle // save key n
bl _vpaes_schedule_192_smear
bl _vpaes_schedule_mangle // save key n+1
bl _vpaes_schedule_round
cbz x0, .Lschedule_mangle_last
bl _vpaes_schedule_mangle // save key n+2
bl _vpaes_schedule_192_smear
b .Loop_schedule_192
##
## .aes_schedule_256
##
## 256-bit specific part of key schedule.
##
## The structure here is very similar to the 128-bit
## schedule, but with an additional "low side" in
## %xmm6. The low side's rounds are the same as the
## high side's, except no rcon and no rotation.
##
.align 4
.Lschedule_256:
ld1 {v0.16b}, [x0] // vmovdqu 16(%rdi),%xmm0 # load key part 2 (unaligned)
bl _vpaes_schedule_transform // input transform
mov x0, #7 // mov $7, %esi
.Loop_schedule_256:
sub x0, x0, #1 // dec %esi
bl _vpaes_schedule_mangle // output low result
mov v6.16b, v0.16b // vmovdqa %xmm0, %xmm6 # save cur_lo in xmm6
// high round
bl _vpaes_schedule_round
cbz x0, .Lschedule_mangle_last
bl _vpaes_schedule_mangle
// low round. swap xmm7 and xmm6
dup v0.4s, v0.s[3] // vpshufd $0xFF, %xmm0, %xmm0
movi v4.16b, #0
mov v5.16b, v7.16b // vmovdqa %xmm7, %xmm5
mov v7.16b, v6.16b // vmovdqa %xmm6, %xmm7
bl _vpaes_schedule_low_round
mov v7.16b, v5.16b // vmovdqa %xmm5, %xmm7
b .Loop_schedule_256
##
## .aes_schedule_mangle_last
##
## Mangler for last round of key schedule
## Mangles %xmm0
## when encrypting, outputs out(%xmm0) ^ 63
## when decrypting, outputs unskew(%xmm0)
##
## Always called right before return... jumps to cleanup and exits
##
.align 4
.Lschedule_mangle_last:
// schedule last round key from xmm0
adrp x11, .Lk_deskew // lea .Lk_deskew(%rip),%r11 # prepare to deskew
add x11, x11, :lo12:.Lk_deskew
cbnz w3, .Lschedule_mangle_last_dec
// encrypting
ld1 {v1.2d}, [x8] // vmovdqa (%r8,%r10),%xmm1
adrp x11, .Lk_opt // lea .Lk_opt(%rip), %r11 # prepare to output transform
add x11, x11, :lo12:.Lk_opt
add x2, x2, #32 // add $32, %rdx
tbl v0.16b, {v0.16b}, v1.16b // vpshufb %xmm1, %xmm0, %xmm0 # output permute
.Lschedule_mangle_last_dec:
ld1 {v20.2d,v21.2d}, [x11] // reload constants
sub x2, x2, #16 // add $-16, %rdx
eor v0.16b, v0.16b, v16.16b // vpxor .Lk_s63(%rip), %xmm0, %xmm0
bl _vpaes_schedule_transform // output transform
st1 {v0.2d}, [x2] // vmovdqu %xmm0, (%rdx) # save last key
// cleanup
eor v0.16b, v0.16b, v0.16b // vpxor %xmm0, %xmm0, %xmm0
eor v1.16b, v1.16b, v1.16b // vpxor %xmm1, %xmm1, %xmm1
eor v2.16b, v2.16b, v2.16b // vpxor %xmm2, %xmm2, %xmm2
eor v3.16b, v3.16b, v3.16b // vpxor %xmm3, %xmm3, %xmm3
eor v4.16b, v4.16b, v4.16b // vpxor %xmm4, %xmm4, %xmm4
eor v5.16b, v5.16b, v5.16b // vpxor %xmm5, %xmm5, %xmm5
eor v6.16b, v6.16b, v6.16b // vpxor %xmm6, %xmm6, %xmm6
eor v7.16b, v7.16b, v7.16b // vpxor %xmm7, %xmm7, %xmm7
ldp x29, x30, [sp],#16
AARCH64_VALIDATE_LINK_REGISTER
ret
.size _vpaes_schedule_core,.-_vpaes_schedule_core
##
## .aes_schedule_192_smear
##
## Smear the short, low side in the 192-bit key schedule.
##
## Inputs:
## %xmm7: high side, b a x y
## %xmm6: low side, d c 0 0
## %xmm13: 0
##
## Outputs:
## %xmm6: b+c+d b+c 0 0
## %xmm0: b+c+d b+c b a
##
.type _vpaes_schedule_192_smear,%function
.align 4
_vpaes_schedule_192_smear:
movi v1.16b, #0
dup v0.4s, v7.s[3]
ins v1.s[3], v6.s[2] // vpshufd $0x80, %xmm6, %xmm1 # d c 0 0 -> c 0 0 0
ins v0.s[0], v7.s[2] // vpshufd $0xFE, %xmm7, %xmm0 # b a _ _ -> b b b a
eor v6.16b, v6.16b, v1.16b // vpxor %xmm1, %xmm6, %xmm6 # -> c+d c 0 0
eor v1.16b, v1.16b, v1.16b // vpxor %xmm1, %xmm1, %xmm1
eor v6.16b, v6.16b, v0.16b // vpxor %xmm0, %xmm6, %xmm6 # -> b+c+d b+c b a
mov v0.16b, v6.16b // vmovdqa %xmm6, %xmm0
ins v6.d[0], v1.d[0] // vmovhlps %xmm1, %xmm6, %xmm6 # clobber low side with zeros
ret
.size _vpaes_schedule_192_smear,.-_vpaes_schedule_192_smear
##
## .aes_schedule_round
##
## Runs one main round of the key schedule on %xmm0, %xmm7
##
## Specifically, runs subbytes on the high dword of %xmm0
## then rotates it by one byte and xors into the low dword of
## %xmm7.
##
## Adds rcon from low byte of %xmm8, then rotates %xmm8 for
## next rcon.
##
## Smears the dwords of %xmm7 by xoring the low into the
## second low, result into third, result into highest.
##
## Returns results in %xmm7 = %xmm0.
## Clobbers %xmm1-%xmm4, %r11.
##
.type _vpaes_schedule_round,%function
.align 4
_vpaes_schedule_round:
// extract rcon from xmm8
movi v4.16b, #0 // vpxor %xmm4, %xmm4, %xmm4
ext v1.16b, v8.16b, v4.16b, #15 // vpalignr $15, %xmm8, %xmm4, %xmm1
ext v8.16b, v8.16b, v8.16b, #15 // vpalignr $15, %xmm8, %xmm8, %xmm8
eor v7.16b, v7.16b, v1.16b // vpxor %xmm1, %xmm7, %xmm7
// rotate
dup v0.4s, v0.s[3] // vpshufd $0xFF, %xmm0, %xmm0
ext v0.16b, v0.16b, v0.16b, #1 // vpalignr $1, %xmm0, %xmm0, %xmm0
// fall through...
// low round: same as high round, but no rotation and no rcon.
_vpaes_schedule_low_round:
// smear xmm7
ext v1.16b, v4.16b, v7.16b, #12 // vpslldq $4, %xmm7, %xmm1
eor v7.16b, v7.16b, v1.16b // vpxor %xmm1, %xmm7, %xmm7
ext v4.16b, v4.16b, v7.16b, #8 // vpslldq $8, %xmm7, %xmm4
// subbytes
and v1.16b, v0.16b, v17.16b // vpand %xmm9, %xmm0, %xmm1 # 0 = k
ushr v0.16b, v0.16b, #4 // vpsrlb $4, %xmm0, %xmm0 # 1 = i
eor v7.16b, v7.16b, v4.16b // vpxor %xmm4, %xmm7, %xmm7
tbl v2.16b, {v19.16b}, v1.16b // vpshufb %xmm1, %xmm11, %xmm2 # 2 = a/k
eor v1.16b, v1.16b, v0.16b // vpxor %xmm0, %xmm1, %xmm1 # 0 = j
tbl v3.16b, {v18.16b}, v0.16b // vpshufb %xmm0, %xmm10, %xmm3 # 3 = 1/i
eor v3.16b, v3.16b, v2.16b // vpxor %xmm2, %xmm3, %xmm3 # 3 = iak = 1/i + a/k
tbl v4.16b, {v18.16b}, v1.16b // vpshufb %xmm1, %xmm10, %xmm4 # 4 = 1/j
eor v7.16b, v7.16b, v16.16b // vpxor .Lk_s63(%rip), %xmm7, %xmm7
tbl v3.16b, {v18.16b}, v3.16b // vpshufb %xmm3, %xmm10, %xmm3 # 2 = 1/iak
eor v4.16b, v4.16b, v2.16b // vpxor %xmm2, %xmm4, %xmm4 # 4 = jak = 1/j + a/k
tbl v2.16b, {v18.16b}, v4.16b // vpshufb %xmm4, %xmm10, %xmm2 # 3 = 1/jak
eor v3.16b, v3.16b, v1.16b // vpxor %xmm1, %xmm3, %xmm3 # 2 = io
eor v2.16b, v2.16b, v0.16b // vpxor %xmm0, %xmm2, %xmm2 # 3 = jo
tbl v4.16b, {v23.16b}, v3.16b // vpshufb %xmm3, %xmm13, %xmm4 # 4 = sbou
tbl v1.16b, {v22.16b}, v2.16b // vpshufb %xmm2, %xmm12, %xmm1 # 0 = sb1t
eor v1.16b, v1.16b, v4.16b // vpxor %xmm4, %xmm1, %xmm1 # 0 = sbox output
// add in smeared stuff
eor v0.16b, v1.16b, v7.16b // vpxor %xmm7, %xmm1, %xmm0
eor v7.16b, v1.16b, v7.16b // vmovdqa %xmm0, %xmm7
ret
.size _vpaes_schedule_round,.-_vpaes_schedule_round
##
## .aes_schedule_transform
##
## Linear-transform %xmm0 according to tables at (%r11)
##
## Requires that %xmm9 = 0x0F0F... as in preheat
## Output in %xmm0
## Clobbers %xmm1, %xmm2
##
.type _vpaes_schedule_transform,%function
.align 4
_vpaes_schedule_transform:
and v1.16b, v0.16b, v17.16b // vpand %xmm9, %xmm0, %xmm1
ushr v0.16b, v0.16b, #4 // vpsrlb $4, %xmm0, %xmm0
// vmovdqa (%r11), %xmm2 # lo
tbl v2.16b, {v20.16b}, v1.16b // vpshufb %xmm1, %xmm2, %xmm2
// vmovdqa 16(%r11), %xmm1 # hi
tbl v0.16b, {v21.16b}, v0.16b // vpshufb %xmm0, %xmm1, %xmm0
eor v0.16b, v0.16b, v2.16b // vpxor %xmm2, %xmm0, %xmm0
ret
.size _vpaes_schedule_transform,.-_vpaes_schedule_transform
##
## .aes_schedule_mangle
##
## Mangle xmm0 from (basis-transformed) standard version
## to our version.
##
## On encrypt,
## xor with 0x63
## multiply by circulant 0,1,1,1
## apply shiftrows transform
##
## On decrypt,
## xor with 0x63
## multiply by "inverse mixcolumns" circulant E,B,D,9
## deskew
## apply shiftrows transform
##
##
## Writes out to (%rdx), and increments or decrements it
## Keeps track of round number mod 4 in %r8
## Preserves xmm0
## Clobbers xmm1-xmm5
##
.type _vpaes_schedule_mangle,%function
.align 4
_vpaes_schedule_mangle:
mov v4.16b, v0.16b // vmovdqa %xmm0, %xmm4 # save xmm0 for later
// vmovdqa .Lk_mc_forward(%rip),%xmm5
// encrypting
eor v4.16b, v0.16b, v16.16b // vpxor .Lk_s63(%rip), %xmm0, %xmm4
add x2, x2, #16 // add $16, %rdx
tbl v4.16b, {v4.16b}, v9.16b // vpshufb %xmm5, %xmm4, %xmm4
tbl v1.16b, {v4.16b}, v9.16b // vpshufb %xmm5, %xmm4, %xmm1
tbl v3.16b, {v1.16b}, v9.16b // vpshufb %xmm5, %xmm1, %xmm3
eor v4.16b, v4.16b, v1.16b // vpxor %xmm1, %xmm4, %xmm4
ld1 {v1.2d}, [x8] // vmovdqa (%r8,%r10), %xmm1
eor v3.16b, v3.16b, v4.16b // vpxor %xmm4, %xmm3, %xmm3
.Lschedule_mangle_both:
tbl v3.16b, {v3.16b}, v1.16b // vpshufb %xmm1, %xmm3, %xmm3
add x8, x8, #64-16 // add $-16, %r8
and x8, x8, #~(1<<6) // and $0x30, %r8
st1 {v3.2d}, [x2] // vmovdqu %xmm3, (%rdx)
ret
.size _vpaes_schedule_mangle,.-_vpaes_schedule_mangle
.globl GFp_vpaes_set_encrypt_key
.hidden GFp_vpaes_set_encrypt_key
.type GFp_vpaes_set_encrypt_key,%function
.align 4
GFp_vpaes_set_encrypt_key:
AARCH64_SIGN_LINK_REGISTER
stp x29,x30,[sp,#-16]!
add x29,sp,#0
stp d8,d9,[sp,#-16]! // ABI spec says so
lsr w9, w1, #5 // shr $5,%eax
add w9, w9, #5 // $5,%eax
str w9, [x2,#240] // mov %eax,240(%rdx) # AES_KEY->rounds = nbits/32+5;
mov w3, #0 // mov $0,%ecx
mov x8, #0x30 // mov $0x30,%r8d
bl _vpaes_schedule_core
eor x0, x0, x0
ldp d8,d9,[sp],#16
ldp x29,x30,[sp],#16
AARCH64_VALIDATE_LINK_REGISTER
ret
.size GFp_vpaes_set_encrypt_key,.-GFp_vpaes_set_encrypt_key
.globl GFp_vpaes_ctr32_encrypt_blocks
.hidden GFp_vpaes_ctr32_encrypt_blocks
.type GFp_vpaes_ctr32_encrypt_blocks,%function
.align 4
GFp_vpaes_ctr32_encrypt_blocks:
AARCH64_SIGN_LINK_REGISTER
stp x29,x30,[sp,#-16]!
add x29,sp,#0
stp d8,d9,[sp,#-16]! // ABI spec says so
stp d10,d11,[sp,#-16]!
stp d12,d13,[sp,#-16]!
stp d14,d15,[sp,#-16]!
cbz x2, .Lctr32_done
// Note, unlike the other functions, x2 here is measured in blocks,
// not bytes.
mov x17, x2
mov x2, x3
// Load the IV and counter portion.
ldr w6, [x4, #12]
ld1 {v7.16b}, [x4]
bl _vpaes_encrypt_preheat
tst x17, #1
rev w6, w6 // The counter is big-endian.
b.eq .Lctr32_prep_loop
// Handle one block so the remaining block count is even for
// _vpaes_encrypt_2x.
ld1 {v6.16b}, [x0], #16 // .Load input ahead of time
bl _vpaes_encrypt_core
eor v0.16b, v0.16b, v6.16b // XOR input and result
st1 {v0.16b}, [x1], #16
subs x17, x17, #1
// Update the counter.
add w6, w6, #1
rev w7, w6
mov v7.s[3], w7
b.ls .Lctr32_done
.Lctr32_prep_loop:
// _vpaes_encrypt_core takes its input from v7, while _vpaes_encrypt_2x
// uses v14 and v15.
mov v15.16b, v7.16b
mov v14.16b, v7.16b
add w6, w6, #1
rev w7, w6
mov v15.s[3], w7
.Lctr32_loop:
ld1 {v6.16b,v7.16b}, [x0], #32 // .Load input ahead of time
bl _vpaes_encrypt_2x
eor v0.16b, v0.16b, v6.16b // XOR input and result
eor v1.16b, v1.16b, v7.16b // XOR input and result (#2)
st1 {v0.16b,v1.16b}, [x1], #32
subs x17, x17, #2
// Update the counter.
add w7, w6, #1
add w6, w6, #2
rev w7, w7
mov v14.s[3], w7
rev w7, w6
mov v15.s[3], w7
b.hi .Lctr32_loop
.Lctr32_done:
ldp d14,d15,[sp],#16
ldp d12,d13,[sp],#16
ldp d10,d11,[sp],#16
ldp d8,d9,[sp],#16
ldp x29,x30,[sp],#16
AARCH64_VALIDATE_LINK_REGISTER
ret
.size GFp_vpaes_ctr32_encrypt_blocks,.-GFp_vpaes_ctr32_encrypt_blocks
#endif
#endif // !OPENSSL_NO_ASM
.section .note.GNU-stack,"",%progbits
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