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Commit f817a67c authored by Niels Möller's avatar Niels Möller
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Work in progress checkin, replaced the fourth set of rounds. 

Rev: nettle/x86/sha1-compress.asm:1.5
parent f9436ea6
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x86/sha1-compress.asm
View file @ f817a67c
......@@ -32,7 +32,7 @@ C Constants
define(<K1VALUE>, <0x5A827999>) C Rounds 0-19
define(<K2VALUE>, <0x6ED9EBA1>) C Rounds 20-39
define(<K3VALUE>, <<$>0x8F1BBCDC>) C Rounds 40-59
define(<K4VALUE>, <<$>0xCA62C1D6>) C Rounds 60-79
define(<K4VALUE>, <0xCA62C1D6>) C Rounds 60-79
C Reads the input via T2 into register, byteswaps it, and stores it in the DATA array.
C SWAP(index, register)
......@@ -74,11 +74,6 @@ define(<F1>, <
andl $1, T1
xorl $3, T1>)dnl
define(<F2>, <
movl $1, T1
xorl $2, T1
xorl $3, T1>)dnl
C The form of one sha1 round is
C
C a' = e + a <<< 5 + f( b, c, d ) + k + w;
......@@ -143,7 +138,7 @@ define(<ROUND_F1_NOEXP>, <
add T2, $5
>)
dnl ROUND_F2(a, b, c, d, e, i)
dnl ROUND_F2(a, b, c, d, e, i, k)
define(<ROUND_F2>, <
mov OFFSET(eval($6 % 16)) (DATA), T1
xor OFFSET(eval(($6 + 2) % 16)) (DATA), T1
......@@ -154,7 +149,7 @@ define(<ROUND_F2>, <
mov $4, T2
xor $3, T2
xor $2, T2
lea K2VALUE (T1, T2), T2
lea $7 (T1, T2), T2
rol <$>30, $2
mov $1, T1
rol <$>5, T1
......@@ -250,33 +245,30 @@ PROLOGUE(_nettle_sha1_compress)
EXPAND(18) ROUND(SC, SD, SE, SA, SB, <F1>)
EXPAND(19) ROUND(SB, SC, SD, SE, SA, <F1>)
C T2 is free to use in these rounds
C movl K2VALUE, KVALUE
ROUND_F2(SA, SB, SC, SD, SE, 20)
ROUND_F2(SE, SA, SB, SC, SD, 21)
ROUND_F2(SD, SE, SA, SB, SC, 22)
ROUND_F2(SC, SD, SE, SA, SB, 23)
ROUND_F2(SB, SC, SD, SE, SA, 24)
ROUND_F2(SA, SB, SC, SD, SE, 25)
ROUND_F2(SE, SA, SB, SC, SD, 26)
ROUND_F2(SD, SE, SA, SB, SC, 27)
ROUND_F2(SC, SD, SE, SA, SB, 28)
ROUND_F2(SB, SC, SD, SE, SA, 29)
ROUND_F2(SA, SB, SC, SD, SE, 30)
ROUND_F2(SE, SA, SB, SC, SD, 31)
ROUND_F2(SD, SE, SA, SB, SC, 32)
ROUND_F2(SC, SD, SE, SA, SB, 33)
ROUND_F2(SB, SC, SD, SE, SA, 34)
ROUND_F2(SA, SB, SC, SD, SE, 35)
ROUND_F2(SE, SA, SB, SC, SD, 36)
ROUND_F2(SD, SE, SA, SB, SC, 37)
ROUND_F2(SC, SD, SE, SA, SB, 38)
ROUND_F2(SB, SC, SD, SE, SA, 39)
C We have to put this constant on the stack
ROUND_F2(SA, SB, SC, SD, SE, 20, K2VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 21, K2VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 22, K2VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 23, K2VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 24, K2VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 25, K2VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 26, K2VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 27, K2VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 28, K2VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 29, K2VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 30, K2VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 31, K2VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 32, K2VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 33, K2VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 34, K2VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 35, K2VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 36, K2VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 37, K2VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 38, K2VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 39, K2VALUE)
movl K3VALUE, KVALUE
EXPAND(40) ROUND_F3(SA, SB, SC, SD, SE)
EXPAND(41) ROUND_F3(SE, SA, SB, SC, SD)
......@@ -302,30 +294,29 @@ PROLOGUE(_nettle_sha1_compress)
EXPAND(58) ROUND_F3(SC, SD, SE, SA, SB)
EXPAND(59) ROUND_F3(SB, SC, SD, SE, SA)
movl K4VALUE, KVALUE
EXPAND(60) ROUND(SA, SB, SC, SD, SE, <F2>)
EXPAND(61) ROUND(SE, SA, SB, SC, SD, <F2>)
EXPAND(62) ROUND(SD, SE, SA, SB, SC, <F2>)
EXPAND(63) ROUND(SC, SD, SE, SA, SB, <F2>)
EXPAND(64) ROUND(SB, SC, SD, SE, SA, <F2>)
EXPAND(65) ROUND(SA, SB, SC, SD, SE, <F2>)
EXPAND(66) ROUND(SE, SA, SB, SC, SD, <F2>)
EXPAND(67) ROUND(SD, SE, SA, SB, SC, <F2>)
EXPAND(68) ROUND(SC, SD, SE, SA, SB, <F2>)
EXPAND(69) ROUND(SB, SC, SD, SE, SA, <F2>)
EXPAND(70) ROUND(SA, SB, SC, SD, SE, <F2>)
EXPAND(71) ROUND(SE, SA, SB, SC, SD, <F2>)
EXPAND(72) ROUND(SD, SE, SA, SB, SC, <F2>)
EXPAND(73) ROUND(SC, SD, SE, SA, SB, <F2>)
EXPAND(74) ROUND(SB, SC, SD, SE, SA, <F2>)
EXPAND(75) ROUND(SA, SB, SC, SD, SE, <F2>)
EXPAND(76) ROUND(SE, SA, SB, SC, SD, <F2>)
EXPAND(77) ROUND(SD, SE, SA, SB, SC, <F2>)
EXPAND(78) ROUND(SC, SD, SE, SA, SB, <F2>)
EXPAND(79) ROUND(SB, SC, SD, SE, SA, <F2>)
ROUND_F2(SA, SB, SC, SD, SE, 60, K4VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 61, K4VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 62, K4VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 63, K4VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 64, K4VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 65, K4VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 66, K4VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 67, K4VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 68, K4VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 69, K4VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 70, K4VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 71, K4VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 72, K4VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 73, K4VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 74, K4VALUE)
ROUND_F2(SA, SB, SC, SD, SE, 75, K4VALUE)
ROUND_F2(SE, SA, SB, SC, SD, 76, K4VALUE)
ROUND_F2(SD, SE, SA, SB, SC, 77, K4VALUE)
ROUND_F2(SC, SD, SE, SA, SB, 78, K4VALUE)
ROUND_F2(SB, SC, SD, SE, SA, 79, K4VALUE)
C Update the state vector
movl 84(%esp),T1
......
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