356 lines
10 KiB
ArmAsm
356 lines
10 KiB
ArmAsm
|
/*
|
||
|
|
* Intel SHA Extensions optimized implementation of a SHA-256 update function
|
||
|
|
*
|
||
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
||
|
|
* redistributing this file, you may do so under either license.
|
||
|
|
*
|
||
|
|
* GPL LICENSE SUMMARY
|
||
|
|
*
|
||
|
|
* Copyright(c) 2015 Intel Corporation.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of version 2 of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* General Public License for more details.
|
||
|
|
*
|
||
|
|
* Contact Information:
|
||
|
|
* Sean Gulley <sean.m.gulley@intel.com>
|
||
|
|
* Tim Chen <tim.c.chen@linux.intel.com>
|
||
|
|
*
|
||
|
|
* BSD LICENSE
|
||
|
|
*
|
||
|
|
* Copyright(c) 2015 Intel Corporation.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/linkage.h>
|
||
|
|
|
||
|
|
#define DIGEST_PTR %rdi /* 1st arg */
|
||
|
|
#define DATA_PTR %rsi /* 2nd arg */
|
||
|
|
#define NUM_BLKS %rdx /* 3rd arg */
|
||
|
|
|
||
|
|
#define SHA256CONSTANTS %rax
|
||
|
|
|
||
|
|
#define MSG %xmm0
|
||
|
|
#define STATE0 %xmm1
|
||
|
|
#define STATE1 %xmm2
|
||
|
|
#define MSGTMP0 %xmm3
|
||
|
|
#define MSGTMP1 %xmm4
|
||
|
|
#define MSGTMP2 %xmm5
|
||
|
|
#define MSGTMP3 %xmm6
|
||
|
|
#define MSGTMP4 %xmm7
|
||
|
|
|
||
|
|
#define SHUF_MASK %xmm8
|
||
|
|
|
||
|
|
#define ABEF_SAVE %xmm9
|
||
|
|
#define CDGH_SAVE %xmm10
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Intel SHA Extensions optimized implementation of a SHA-256 update function
|
||
|
|
*
|
||
|
|
* The function takes a pointer to the current hash values, a pointer to the
|
||
|
|
* input data, and a number of 64 byte blocks to process. Once all blocks have
|
||
|
|
* been processed, the digest pointer is updated with the resulting hash value.
|
||
|
|
* The function only processes complete blocks, there is no functionality to
|
||
|
|
* store partial blocks. All message padding and hash value initialization must
|
||
|
|
* be done outside the update function.
|
||
|
|
*
|
||
|
|
* The indented lines in the loop are instructions related to rounds processing.
|
||
|
|
* The non-indented lines are instructions related to the message schedule.
|
||
|
|
*
|
||
|
|
* void sha256_ni_transform(uint32_t *digest, const void *data,
|
||
|
|
uint32_t numBlocks);
|
||
|
|
* digest : pointer to digest
|
||
|
|
* data: pointer to input data
|
||
|
|
* numBlocks: Number of blocks to process
|
||
|
|
*/
|
||
|
|
|
||
|
|
.text
|
||
|
|
.align 32
|
||
|
|
ENTRY(sha256_ni_transform)
|
||
|
|
|
||
|
|
shl $6, NUM_BLKS /* convert to bytes */
|
||
|
|
jz .Ldone_hash
|
||
|
|
add DATA_PTR, NUM_BLKS /* pointer to end of data */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* load initial hash values
|
||
|
|
* Need to reorder these appropriately
|
||
|
|
* DCBA, HGFE -> ABEF, CDGH
|
||
|
|
*/
|
||
|
|
movdqu 0*16(DIGEST_PTR), STATE0
|
||
|
|
movdqu 1*16(DIGEST_PTR), STATE1
|
||
|
|
|
||
|
|
pshufd $0xB1, STATE0, STATE0 /* CDAB */
|
||
|
|
pshufd $0x1B, STATE1, STATE1 /* EFGH */
|
||
|
|
movdqa STATE0, MSGTMP4
|
||
|
|
palignr $8, STATE1, STATE0 /* ABEF */
|
||
|
|
pblendw $0xF0, MSGTMP4, STATE1 /* CDGH */
|
||
|
|
|
||
|
|
movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
|
||
|
|
lea K256(%rip), SHA256CONSTANTS
|
||
|
|
|
||
|
|
.Lloop0:
|
||
|
|
/* Save hash values for addition after rounds */
|
||
|
|
movdqa STATE0, ABEF_SAVE
|
||
|
|
movdqa STATE1, CDGH_SAVE
|
||
|
|
|
||
|
|
/* Rounds 0-3 */
|
||
|
|
movdqu 0*16(DATA_PTR), MSG
|
||
|
|
pshufb SHUF_MASK, MSG
|
||
|
|
movdqa MSG, MSGTMP0
|
||
|
|
paddd 0*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
|
||
|
|
/* Rounds 4-7 */
|
||
|
|
movdqu 1*16(DATA_PTR), MSG
|
||
|
|
pshufb SHUF_MASK, MSG
|
||
|
|
movdqa MSG, MSGTMP1
|
||
|
|
paddd 1*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP1, MSGTMP0
|
||
|
|
|
||
|
|
/* Rounds 8-11 */
|
||
|
|
movdqu 2*16(DATA_PTR), MSG
|
||
|
|
pshufb SHUF_MASK, MSG
|
||
|
|
movdqa MSG, MSGTMP2
|
||
|
|
paddd 2*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP2, MSGTMP1
|
||
|
|
|
||
|
|
/* Rounds 12-15 */
|
||
|
|
movdqu 3*16(DATA_PTR), MSG
|
||
|
|
pshufb SHUF_MASK, MSG
|
||
|
|
movdqa MSG, MSGTMP3
|
||
|
|
paddd 3*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP3, MSGTMP4
|
||
|
|
palignr $4, MSGTMP2, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP0
|
||
|
|
sha256msg2 MSGTMP3, MSGTMP0
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP3, MSGTMP2
|
||
|
|
|
||
|
|
/* Rounds 16-19 */
|
||
|
|
movdqa MSGTMP0, MSG
|
||
|
|
paddd 4*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP0, MSGTMP4
|
||
|
|
palignr $4, MSGTMP3, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP1
|
||
|
|
sha256msg2 MSGTMP0, MSGTMP1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP0, MSGTMP3
|
||
|
|
|
||
|
|
/* Rounds 20-23 */
|
||
|
|
movdqa MSGTMP1, MSG
|
||
|
|
paddd 5*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP1, MSGTMP4
|
||
|
|
palignr $4, MSGTMP0, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP2
|
||
|
|
sha256msg2 MSGTMP1, MSGTMP2
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP1, MSGTMP0
|
||
|
|
|
||
|
|
/* Rounds 24-27 */
|
||
|
|
movdqa MSGTMP2, MSG
|
||
|
|
paddd 6*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP2, MSGTMP4
|
||
|
|
palignr $4, MSGTMP1, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP3
|
||
|
|
sha256msg2 MSGTMP2, MSGTMP3
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP2, MSGTMP1
|
||
|
|
|
||
|
|
/* Rounds 28-31 */
|
||
|
|
movdqa MSGTMP3, MSG
|
||
|
|
paddd 7*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP3, MSGTMP4
|
||
|
|
palignr $4, MSGTMP2, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP0
|
||
|
|
sha256msg2 MSGTMP3, MSGTMP0
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP3, MSGTMP2
|
||
|
|
|
||
|
|
/* Rounds 32-35 */
|
||
|
|
movdqa MSGTMP0, MSG
|
||
|
|
paddd 8*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP0, MSGTMP4
|
||
|
|
palignr $4, MSGTMP3, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP1
|
||
|
|
sha256msg2 MSGTMP0, MSGTMP1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP0, MSGTMP3
|
||
|
|
|
||
|
|
/* Rounds 36-39 */
|
||
|
|
movdqa MSGTMP1, MSG
|
||
|
|
paddd 9*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP1, MSGTMP4
|
||
|
|
palignr $4, MSGTMP0, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP2
|
||
|
|
sha256msg2 MSGTMP1, MSGTMP2
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP1, MSGTMP0
|
||
|
|
|
||
|
|
/* Rounds 40-43 */
|
||
|
|
movdqa MSGTMP2, MSG
|
||
|
|
paddd 10*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP2, MSGTMP4
|
||
|
|
palignr $4, MSGTMP1, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP3
|
||
|
|
sha256msg2 MSGTMP2, MSGTMP3
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP2, MSGTMP1
|
||
|
|
|
||
|
|
/* Rounds 44-47 */
|
||
|
|
movdqa MSGTMP3, MSG
|
||
|
|
paddd 11*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP3, MSGTMP4
|
||
|
|
palignr $4, MSGTMP2, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP0
|
||
|
|
sha256msg2 MSGTMP3, MSGTMP0
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP3, MSGTMP2
|
||
|
|
|
||
|
|
/* Rounds 48-51 */
|
||
|
|
movdqa MSGTMP0, MSG
|
||
|
|
paddd 12*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP0, MSGTMP4
|
||
|
|
palignr $4, MSGTMP3, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP1
|
||
|
|
sha256msg2 MSGTMP0, MSGTMP1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
sha256msg1 MSGTMP0, MSGTMP3
|
||
|
|
|
||
|
|
/* Rounds 52-55 */
|
||
|
|
movdqa MSGTMP1, MSG
|
||
|
|
paddd 13*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP1, MSGTMP4
|
||
|
|
palignr $4, MSGTMP0, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP2
|
||
|
|
sha256msg2 MSGTMP1, MSGTMP2
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
|
||
|
|
/* Rounds 56-59 */
|
||
|
|
movdqa MSGTMP2, MSG
|
||
|
|
paddd 14*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
movdqa MSGTMP2, MSGTMP4
|
||
|
|
palignr $4, MSGTMP1, MSGTMP4
|
||
|
|
paddd MSGTMP4, MSGTMP3
|
||
|
|
sha256msg2 MSGTMP2, MSGTMP3
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
|
||
|
|
/* Rounds 60-63 */
|
||
|
|
movdqa MSGTMP3, MSG
|
||
|
|
paddd 15*16(SHA256CONSTANTS), MSG
|
||
|
|
sha256rnds2 STATE0, STATE1
|
||
|
|
pshufd $0x0E, MSG, MSG
|
||
|
|
sha256rnds2 STATE1, STATE0
|
||
|
|
|
||
|
|
/* Add current hash values with previously saved */
|
||
|
|
paddd ABEF_SAVE, STATE0
|
||
|
|
paddd CDGH_SAVE, STATE1
|
||
|
|
|
||
|
|
/* Increment data pointer and loop if more to process */
|
||
|
|
add $64, DATA_PTR
|
||
|
|
cmp NUM_BLKS, DATA_PTR
|
||
|
|
jne .Lloop0
|
||
|
|
|
||
|
|
/* Write hash values back in the correct order */
|
||
|
|
pshufd $0x1B, STATE0, STATE0 /* FEBA */
|
||
|
|
pshufd $0xB1, STATE1, STATE1 /* DCHG */
|
||
|
|
movdqa STATE0, MSGTMP4
|
||
|
|
pblendw $0xF0, STATE1, STATE0 /* DCBA */
|
||
|
|
palignr $8, MSGTMP4, STATE1 /* HGFE */
|
||
|
|
|
||
|
|
movdqu STATE0, 0*16(DIGEST_PTR)
|
||
|
|
movdqu STATE1, 1*16(DIGEST_PTR)
|
||
|
|
|
||
|
|
.Ldone_hash:
|
||
|
|
|
||
|
|
ret
|
||
|
|
ENDPROC(sha256_ni_transform)
|
||
|
|
|
||
|
|
.section .rodata.cst256.K256, "aM", @progbits, 256
|
||
|
|
.align 64
|
||
|
|
K256:
|
||
|
|
.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
|
||
|
|
.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
|
||
|
|
.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
|
||
|
|
.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
|
||
|
|
.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
|
||
|
|
.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
|
||
|
|
.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
|
||
|
|
.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
|
||
|
|
.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
|
||
|
|
.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
|
||
|
|
.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
|
||
|
|
.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
|
||
|
|
.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
|
||
|
|
.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
|
||
|
|
.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
|
||
|
|
.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
||
|
|
|
||
|
|
.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
|
||
|
|
.align 16
|
||
|
|
PSHUFFLE_BYTE_FLIP_MASK:
|
||
|
|
.octa 0x0c0d0e0f08090a0b0405060700010203
|