📄 sha_asm.asm
字号:
; #####################################################################################################################
;
; SHA_asm.asm
;
; Copyright (c) Shareaza Development Team, 2002-2004.
; This file is part of SHAREAZA (www.shareaza.com)
;
; Shareaza 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 2 of
; the License, or (at your option) any later version.
;
; Shareaza 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 Shareaza; if not, write to the Free Software
; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;
; #####################################################################################################################
;
; SHA_asm - Implementation of SHA-1 for x86 - use together with SHA.cpp and SHA.h
;
; created 4.7.2004 by Camper
;
; last modified 20.7.2004 by Camper
;
; The integration into other projects than Shareaza is expressivly encouraged. Feel free to contact me about it.
;
; #####################################################################################################################
.586p
.model flat, C
option casemap:none ; case sensitive
option prologue:none ; we generate our own entry/exit code
option epilogue:none
; #####################################################################################################################
CSHA_MemberStart EQU 4 ; skip vtbl
m_nCount0 EQU CSHA_MemberStart+0 ; offsets as found in SHA.h
m_nCount1 EQU CSHA_MemberStart+4
m_nHash0 EQU CSHA_MemberStart+8
m_nHash1 EQU CSHA_MemberStart+12
m_nHash2 EQU CSHA_MemberStart+16
m_nHash3 EQU CSHA_MemberStart+20
m_nHash4 EQU CSHA_MemberStart+24
m_nBuffer EQU CSHA_MemberStart+28
.data
SHA_asm_m_nCount0 DD m_nCount0
SHA_asm_m_nCount1 DD m_nCount1
SHA_asm_m_nHash0 DD m_nHash0
SHA_asm_m_nHash1 DD m_nHash1
SHA_asm_m_nHash2 DD m_nHash2
SHA_asm_m_nHash3 DD m_nHash3
SHA_asm_m_nHash4 DD m_nHash4
SHA_asm_m_nBuffer DD m_nBuffer
PUBLIC SHA_asm_m_nCount0
PUBLIC SHA_asm_m_nCount1
PUBLIC SHA_asm_m_nHash0
PUBLIC SHA_asm_m_nHash1
PUBLIC SHA_asm_m_nHash2
PUBLIC SHA_asm_m_nHash3
PUBLIC SHA_asm_m_nHash4
PUBLIC SHA_asm_m_nBuffer
RND_CH MACRO const:REQ
; t=a; a=rotl32(a,5)+e+k+w[i]+((b&c)^(~b&d)); e=d; d=c; c=rotl32(b,30); b=t
mov reg_temp1, reg_a ; t=a
mov reg_temp2, reg_c ; save c
rol reg_a, 5
add reg_a, reg_e
mov reg_e, reg_b
and reg_b, reg_c ; b&c
mov reg_c, reg_e
not reg_e
add reg_a, const
ror reg_c, 2 ; c=rotl32(b,30)
and reg_e, reg_d ; ~b&d
add reg_a, [_w+count*4]
xor reg_b, reg_e ; ( )^( )
add reg_a, reg_b
reg_t textequ reg_e
reg_e textequ reg_d ; e=d, saves mov reg_e,reg_d
reg_d textequ reg_temp2 ; d=c, saves mov reg_d,reg_temp2
reg_temp2 textequ reg_t
reg_t textequ reg_b ; b=t
reg_b textequ reg_temp1 ; save mov reg_d,reg_temp1
reg_temp1 textequ reg_t
count = count + 1
ENDM ; RND_CH
RND_PARITY MACRO const:REQ
; t=a; a=rotl32(a,5)+e+k+w[i]+(b^c^d); e=d; d=c; c=rotl32(b,30); b=t
mov reg_temp1, reg_a ; t=a
rol reg_a, 5
add reg_a, reg_e
mov reg_e, reg_b
add reg_a, const
reg_t textequ reg_b
reg_b textequ reg_e ; b<->e
reg_e textequ reg_t
xor reg_e, reg_c
add reg_a, [_w+count*4]
xor reg_e, reg_d
add reg_a, reg_e
ror reg_b, 2
reg_t textequ reg_e
reg_e textequ reg_d ; e=d
reg_d textequ reg_c ; d=c
reg_c textequ reg_b ; c=rotl(b,30)
reg_b textequ reg_temp1 ; b=t
reg_temp1 textequ reg_t
count = count + 1
ENDM ; RND_PARITY
RND_MAJ MACRO const:REQ
; t=a; a=rotl32(a,5)+e+k+w[i]+((b&c)^(b&d)^(c&d)); e=d; d=c; c=rotl32(b,30); b=t
mov _t, reg_a
rol reg_a, 5
mov reg_temp1, reg_c
mov reg_temp2, reg_d
add reg_a, reg_e
mov reg_e, reg_b
reg_t textequ reg_b
reg_b textequ reg_e
reg_e textequ reg_t
and reg_e, reg_c
add reg_a, const
and reg_c, reg_d
add reg_a, [_w+count*4]
and reg_d, reg_b
xor reg_e, reg_c
xor reg_e, reg_d
add reg_a, reg_e
reg_t textequ reg_c
reg_c textequ reg_b ; c=rotl32(b,30)
reg_b textequ reg_t
mov reg_b, _t ; b=t
ror reg_c, 2
reg_t textequ reg_e
reg_e textequ reg_temp2 ; e=d
reg_temp2 textequ reg_t
reg_t textequ reg_d
reg_d textequ reg_temp1 ; d=c
reg_temp1 textequ reg_t
count = count + 1
ENDM ; RND_MAJ
INIT_REG_ALIAS MACRO
reg_accu textequ <eax>
reg_base textequ <ebp>
reg_i_1 textequ <ebx>
reg_i_2 textequ <ecx>
reg_i_3 textequ <edx>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -