159 lines
3.4 KiB
ArmAsm
159 lines
3.4 KiB
ArmAsm
/* shabal384-asm.S */
|
|
/*
|
|
This file is part of the AVR-Crypto-Lib.
|
|
Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/*
|
|
* \file shabal384-asm.S
|
|
* \author Daniel Otte
|
|
* \email bg@nerilex.org
|
|
* \date 2009-04-27
|
|
* \license GPLv3 or later
|
|
*/
|
|
|
|
#include "avr-asm-macros.S"
|
|
|
|
/******************************************************************************/
|
|
|
|
shabal384_iv:
|
|
/* A */
|
|
.long 0xC8FCA331, 0xE55C504E, 0x003EBF26, 0xBB6B8D83
|
|
.long 0x7B0448C1, 0x41B82789, 0x0A7C9601, 0x8D659CFF
|
|
.long 0xB6E2673E, 0xCA54C77B, 0x1460FD7E, 0x3FCB8F2D
|
|
/* B */
|
|
.long 0x527291FC, 0x2A16455F, 0x78E627E5, 0x944F169F
|
|
.long 0x1CA6F016, 0xA854EA25, 0x8DB98ABE, 0xF2C62641
|
|
.long 0x30117DCB, 0xCF5C4309, 0x93711A25, 0xF9F671B8
|
|
.long 0xB01D2116, 0x333F4B89, 0xB285D165, 0x86829B36
|
|
/* C */
|
|
.long 0xF764B11A, 0x76172146, 0xCEF6934D, 0xC6D28399
|
|
.long 0xFE095F61, 0x5E6018B4, 0x5048ECF5, 0x51353261
|
|
.long 0x6E6E36DC, 0x63130DAD, 0xA9C69BD6, 0x1E90EA0C
|
|
.long 0x7C35073B, 0x28D95E6D, 0xAA340E0D, 0xCB3DEE70
|
|
|
|
/******************************************************************************/
|
|
/*
|
|
* param ctx: r24,r25
|
|
*/
|
|
.global shabal384_init
|
|
shabal384_init:
|
|
movw r26, r24
|
|
ldi r24, 1
|
|
st X+, r24
|
|
st X+, r1
|
|
st X+, r1
|
|
st X+, r1
|
|
st X+, r1
|
|
st X+, r1
|
|
st X+, r1
|
|
st X+, r1
|
|
movw r24, r26
|
|
adiw r24, 12*4+4
|
|
st X+, r24
|
|
st X+, r25
|
|
adiw r24, 4*16-1
|
|
adiw r24, 1
|
|
st X+, r24
|
|
st X+, r25
|
|
ldi r24, (12+16+16)
|
|
ldi r30, lo8(shabal384_iv)
|
|
ldi r31, hi8(shabal384_iv)
|
|
1: lpm r0, Z+
|
|
st X+, r0
|
|
lpm r0, Z+
|
|
st X+, r0
|
|
lpm r0, Z+
|
|
st X+, r0
|
|
lpm r0, Z+
|
|
st X+, r0
|
|
dec r24
|
|
brne 1b
|
|
ret
|
|
|
|
/******************************************************************************/
|
|
|
|
.global shabal384_ctx2hash
|
|
shabal384_ctx2hash:
|
|
movw r26, r24
|
|
movw r30, r22
|
|
ldd r24, Z+(8+2)
|
|
ldd r25, Z+(8+2+1)
|
|
movw r30, r24
|
|
adiw r30, (16-384/32)*4
|
|
ldi r24, 384/8
|
|
1: ld r0, Z+
|
|
st X+, r0
|
|
dec r24
|
|
brne 1b
|
|
ret
|
|
|
|
/******************************************************************************/
|
|
/*
|
|
* param dest: r24:r25
|
|
* param msg: r22:r23
|
|
* param length_b: r18:r21
|
|
*/
|
|
DST0 = 8
|
|
DST1 = 9
|
|
CTX0 = 10
|
|
CTX1 = 11
|
|
MSG0 = 12
|
|
MSG1 = 13
|
|
LEN2 = 14
|
|
LEN3 = 15
|
|
LEN0 = 16
|
|
LEN1 = 17
|
|
.global shabal384
|
|
shabal384:
|
|
push_range 8, 17
|
|
stack_alloc_large 188
|
|
adiw r30, 1 /* Z points to stack space (ctx) */
|
|
movw CTX0, r30
|
|
movw DST0, r24
|
|
movw MSG0, r22
|
|
movw LEN0, r18
|
|
movw LEN2, r20
|
|
movw r24, r30
|
|
rcall shabal384_init
|
|
2:
|
|
tst LEN2
|
|
brne 3f
|
|
tst LEN3
|
|
breq 4f
|
|
3:
|
|
movw r24, CTX0
|
|
movw r22, MSG0
|
|
rcall shabal_nextBlock
|
|
subi LEN1, 0x02
|
|
sbc LEN2, r1
|
|
sbc LEN3, r1
|
|
ldi r18, 64
|
|
add MSG0, r18
|
|
adc MSG1, r1
|
|
rjmp 2b
|
|
4:
|
|
movw r24, CTX0
|
|
movw r22, MSG0
|
|
movw r20, LEN0
|
|
rcall shabal_lastBlock
|
|
movw r24, DST0
|
|
movw r22, CTX0
|
|
rcall shabal384_ctx2hash
|
|
stack_free_large2 188
|
|
pop_range 8, 17
|
|
ret
|
|
|