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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright(c) 2011-2016 Intel Corporation All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in
; the documentation and/or other materials provided with the
; distribution.
; * Neither the name of Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Routine to do AES key expansion
%include "reg_sizes.asm"
; Uses the f() function of the aeskeygenassist result
%macro key_expansion_256_sse 0
;; Assumes the xmm3 includes all zeros at this point.
pshufd xmm2, xmm2, 11111111b
shufps xmm3, xmm1, 00010000b
pxor xmm1, xmm3
shufps xmm3, xmm1, 10001100b
pxor xmm1, xmm3
pxor xmm1, xmm2
%endmacro
; Uses the SubWord function of the aeskeygenassist result
%macro key_expansion_256_sse_2 0
;; Assumes the xmm3 includes all zeros at this point.
pshufd xmm2, xmm2, 10101010b
shufps xmm3, xmm4, 00010000b
pxor xmm4, xmm3
shufps xmm3, xmm4, 10001100b
pxor xmm4, xmm3
pxor xmm4, xmm2
%endmacro
; Uses the f() function of the aeskeygenassist result
%macro key_expansion_256_avx 0
;; Assumes the xmm3 includes all zeros at this point.
vpshufd xmm2, xmm2, 11111111b
vshufps xmm3, xmm3, xmm1, 00010000b
vpxor xmm1, xmm1, xmm3
vshufps xmm3, xmm3, xmm1, 10001100b
vpxor xmm1, xmm1, xmm3
vpxor xmm1, xmm1, xmm2
%endmacro
; Uses the SubWord function of the aeskeygenassist result
%macro key_expansion_256_avx_2 0
;; Assumes the xmm3 includes all zeros at this point.
vpshufd xmm2, xmm2, 10101010b
vshufps xmm3, xmm3, xmm4, 00010000b
vpxor xmm4, xmm4, xmm3
vshufps xmm3, xmm3, xmm4, 10001100b
vpxor xmm4, xmm4, xmm3
vpxor xmm4, xmm4, xmm2
%endmacro
%ifidn __OUTPUT_FORMAT__, elf64
%define KEY rdi
%define EXP_ENC_KEYS rsi
%define EXP_DEC_KEYS rdx
%else
%define KEY rcx
%define EXP_ENC_KEYS rdx
%define EXP_DEC_KEYS r8
%endif
; void aes_keyexp_256(UINT8 *key,
; UINT8 *enc_exp_keys,
; UINT8 *dec_exp_keys);
;
; arg 1: rcx: pointer to key
; arg 2: rdx: pointer to expanded key array for encrypt
; arg 3: r8: pointer to expanded key array for decrypt
;
global aes_keyexp_256_sse:function
aes_keyexp_256_sse:
movdqu xmm1, [KEY] ; loading the AES key
movdqu [EXP_ENC_KEYS + 16*0], xmm1
movdqu [EXP_DEC_KEYS + 16*14], xmm1 ; Storing key in memory
movdqu xmm4, [KEY+16] ; loading the AES key
movdqu [EXP_ENC_KEYS + 16*1], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*13], xmm0 ; Storing key in memory
pxor xmm3, xmm3 ; Required for the key_expansion.
aeskeygenassist xmm2, xmm4, 0x1 ; Generating round key 2
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*2], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*12], xmm5
aeskeygenassist xmm2, xmm1, 0x1 ; Generating round key 3
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*3], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*11], xmm0
aeskeygenassist xmm2, xmm4, 0x2 ; Generating round key 4
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*4], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*10], xmm5
aeskeygenassist xmm2, xmm1, 0x2 ; Generating round key 5
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*5], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*9], xmm0
aeskeygenassist xmm2, xmm4, 0x4 ; Generating round key 6
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*6], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*8], xmm5
aeskeygenassist xmm2, xmm1, 0x4 ; Generating round key 7
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*7], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*7], xmm0
aeskeygenassist xmm2, xmm4, 0x8 ; Generating round key 8
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*8], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*6], xmm5
aeskeygenassist xmm2, xmm1, 0x8 ; Generating round key 9
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*9], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*5], xmm0
aeskeygenassist xmm2, xmm4, 0x10 ; Generating round key 10
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*10], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*4], xmm5
aeskeygenassist xmm2, xmm1, 0x10 ; Generating round key 11
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*11], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*3], xmm0
aeskeygenassist xmm2, xmm4, 0x20 ; Generating round key 12
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*12], xmm1
aesimc xmm5, xmm1
movdqu [EXP_DEC_KEYS + 16*2], xmm5
aeskeygenassist xmm2, xmm1, 0x20 ; Generating round key 13
key_expansion_256_sse_2
movdqu [EXP_ENC_KEYS + 16*13], xmm4
aesimc xmm0, xmm4
movdqu [EXP_DEC_KEYS + 16*1], xmm0
aeskeygenassist xmm2, xmm4, 0x40 ; Generating round key 14
key_expansion_256_sse
movdqu [EXP_ENC_KEYS + 16*14], xmm1
movdqu [EXP_DEC_KEYS + 16*0], xmm1
ret
global aes_keyexp_256_avx:function
aes_keyexp_256_avx:
vmovdqu xmm1, [KEY] ; loading the AES key
vmovdqu [EXP_ENC_KEYS + 16*0], xmm1
vmovdqu [EXP_DEC_KEYS + 16*14], xmm1 ; Storing key in memory
vmovdqu xmm4, [KEY+16] ; loading the AES key
vmovdqu [EXP_ENC_KEYS + 16*1], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*13], xmm0 ; Storing key in memory
vpxor xmm3, xmm3, xmm3 ; Required for the key_expansion.
vaeskeygenassist xmm2, xmm4, 0x1 ; Generating round key 2
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*2], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*12], xmm5
vaeskeygenassist xmm2, xmm1, 0x1 ; Generating round key 3
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*3], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*11], xmm0
vaeskeygenassist xmm2, xmm4, 0x2 ; Generating round key 4
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*4], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*10], xmm5
vaeskeygenassist xmm2, xmm1, 0x2 ; Generating round key 5
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*5], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*9], xmm0
vaeskeygenassist xmm2, xmm4, 0x4 ; Generating round key 6
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*6], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*8], xmm5
vaeskeygenassist xmm2, xmm1, 0x4 ; Generating round key 7
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*7], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*7], xmm0
vaeskeygenassist xmm2, xmm4, 0x8 ; Generating round key 8
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*8], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*6], xmm5
vaeskeygenassist xmm2, xmm1, 0x8 ; Generating round key 9
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*9], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*5], xmm0
vaeskeygenassist xmm2, xmm4, 0x10 ; Generating round key 10
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*10], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*4], xmm5
vaeskeygenassist xmm2, xmm1, 0x10 ; Generating round key 11
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*11], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*3], xmm0
vaeskeygenassist xmm2, xmm4, 0x20 ; Generating round key 12
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*12], xmm1
vaesimc xmm5, xmm1
vmovdqu [EXP_DEC_KEYS + 16*2], xmm5
vaeskeygenassist xmm2, xmm1, 0x20 ; Generating round key 13
key_expansion_256_avx_2
vmovdqu [EXP_ENC_KEYS + 16*13], xmm4
vaesimc xmm0, xmm4
vmovdqu [EXP_DEC_KEYS + 16*1], xmm0
vaeskeygenassist xmm2, xmm4, 0x40 ; Generating round key 14
key_expansion_256_avx
vmovdqu [EXP_ENC_KEYS + 16*14], xmm1
vmovdqu [EXP_DEC_KEYS + 16*0], xmm1
ret
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