X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=shabal%2Fshabal384-asm.S;fp=shabal%2Fshabal384-asm.S;h=e9a053d01d32d95c0655ab80103e7f14e6bd50ad;hb=4f50c75ee5a6cc88bf7ea71957ed509e298e6c25;hp=0000000000000000000000000000000000000000;hpb=7701e318e4e2bac7f84dbf6e368f1501814948fc;p=avr-crypto-lib.git

diff --git a/shabal/shabal384-asm.S b/shabal/shabal384-asm.S
new file mode 100644
index 0000000..e9a053d
--- /dev/null
+++ b/shabal/shabal384-asm.S
@@ -0,0 +1,158 @@
+/* shabal384-asm.S */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2009  Daniel Otte (daniel.otte@rub.de)
+
+    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   daniel.otte@rub.de
+ * \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
+