cx86unix.cpp

来自「提供了很多种加密算法和CA认证及相关服务如CMP、OCSP等的开发」· C++ 代码 · 共 982 行 · 第 1/2 页

CPP
982 行
字号
12
	xorl	%ecx,		%edi
	/* round 12 */
	movl	96(%ebp),	%edx
	movl	100(%ebp),	%ecx
	addl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	addl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 11 */
	movl	88(%ebp),	%edx
	movl	92(%ebp),	%ecx
	subl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	subl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 10 */
	movl	80(%ebp),	%edx
	movl	84(%ebp),	%ecx
	xorl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	xorl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 9 */
	movl	72(%ebp),	%edx
	movl	76(%ebp),	%ecx
	addl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	addl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 8 */
	movl	64(%ebp),	%edx
	movl	68(%ebp),	%ecx
	subl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	subl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 7 */
	movl	56(%ebp),	%edx
	movl	60(%ebp),	%ecx
	xorl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	xorl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 6 */
	movl	48(%ebp),	%edx
	movl	52(%ebp),	%ecx
	addl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	addl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 5 */
	movl	40(%ebp),	%edx
	movl	44(%ebp),	%ecx
	subl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	subl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 4 */
	movl	32(%ebp),	%edx
	movl	36(%ebp),	%ecx
	xorl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	xorl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 3 */
	movl	24(%ebp),	%edx
	movl	28(%ebp),	%ecx
	addl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	addl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 2 */
	movl	16(%ebp),	%edx
	movl	20(%ebp),	%ecx
	subl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	subl	%ebx,		%ecx
	xorl	%ecx,		%esi
	/* round 1 */
	movl	8(%ebp),	%edx
	movl	12(%ebp),	%ecx
	xorl	%esi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	addl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	xorl	%ebx,		%ecx
	xorl	%ecx,		%edi
	/* round 0 */
	movl	(%ebp),		%edx
	movl	4(%ebp),	%ecx
	addl	%edi,		%edx
	roll	%cl,		%edx
	movl	%edx,		%ebx
	xorl	%ecx,		%ecx
	movb	%dh,		%cl
	andl	$255,		%ebx
	shrl	$16,		%edx
	xorl	%eax,		%eax
	movb	%dh,		%al
	andl	$255,		%edx
	movl	CAST_S_table0(,%ecx,4),%ecx
	movl	CAST_S_table1(,%ebx,4),%ebx
	xorl	%ebx,		%ecx
	movl	CAST_S_table2(,%eax,4),%ebx
	subl	%ebx,		%ecx
	movl	CAST_S_table3(,%edx,4),%ebx
	addl	%ebx,		%ecx
	movl	20(%esp),	%eax
	xorl	%ecx,		%esi
	nop
	movl	%edi,		4(%eax)
	movl	%esi,		(%eax)
	popl	%edi
	popl	%esi
	popl	%ebx
	popl	%ebp
	ret
.CAST_decrypt_end:
	SIZE(CAST_decrypt,.CAST_decrypt_end-CAST_decrypt)
.ident	"CAST_decrypt"
.text
	.align ALIGN
.globl CAST_cbc_encrypt
	TYPE(CAST_cbc_encrypt,@function)
CAST_cbc_encrypt:

	pushl	%ebp
	pushl	%ebx
	pushl	%esi
	pushl	%edi
	movl	28(%esp),	%ebp
	/* getting iv ptr from parameter 4 */
	movl	36(%esp),	%ebx
	movl	(%ebx),		%esi
	movl	4(%ebx),	%edi
	pushl	%edi
	pushl	%esi
	pushl	%edi
	pushl	%esi
	movl	%esp,		%ebx
	movl	36(%esp),	%esi
	movl	40(%esp),	%edi
	/* getting encrypt flag from parameter 5 */
	movl	56(%esp),	%ecx
	/* get and push parameter 3 */
	movl	48(%esp),	%eax
	pushl	%eax
	pushl	%ebx
	cmpl	$0,		%ecx
	jz	.L000decrypt
	andl	$4294967288,	%ebp
	movl	8(%esp),	%eax
	movl	12(%esp),	%ebx
	jz	.L001encrypt_finish
.L002encrypt_loop:
	movl	(%esi),		%ecx
	movl	4(%esi),	%edx
	xorl	%ecx,		%eax
	xorl	%edx,		%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		8(%esp)
	movl	%ebx,		12(%esp)
	call	CAST_encrypt
	movl	8(%esp),	%eax
	movl	12(%esp),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		(%edi)
	movl	%ebx,		4(%edi)
	addl	$8,		%esi
	addl	$8,		%edi
	subl	$8,		%ebp
	jnz	.L002encrypt_loop
.L001encrypt_finish:
	movl	52(%esp),	%ebp
	andl	$7,		%ebp
	jz	.L003finish
	xorl	%ecx,		%ecx
	xorl	%edx,		%edx
	movl	.L004cbc_enc_jmp_table(,%ebp,4),%ebp
	jmp	*%ebp
.L005ej7:
	xorl	%edx,		%edx
	movb	6(%esi),	%dh
	sall	$8,		%edx
.L006ej6:
	movb	5(%esi),	%dh
.L007ej5:
	movb	4(%esi),	%dl
.L008ej4:
	movl	(%esi),		%ecx
	jmp	.L009ejend
.L010ej3:
	movb	2(%esi),	%ch
	xorl	%ecx,		%ecx
	sall	$8,		%ecx
.L011ej2:
	movb	1(%esi),	%ch
.L012ej1:
	movb	(%esi),		%cl
.L009ejend:
	xorl	%ecx,		%eax
	xorl	%edx,		%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		8(%esp)
	movl	%ebx,		12(%esp)
	call	CAST_encrypt
	movl	8(%esp),	%eax
	movl	12(%esp),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		(%edi)
	movl	%ebx,		4(%edi)
	jmp	.L003finish
.align ALIGN
.L000decrypt:
	andl	$4294967288,	%ebp
	movl	16(%esp),	%eax
	movl	20(%esp),	%ebx
	jz	.L013decrypt_finish
.L014decrypt_loop:
	movl	(%esi),		%eax
	movl	4(%esi),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		8(%esp)
	movl	%ebx,		12(%esp)
	call	CAST_decrypt
	movl	8(%esp),	%eax
	movl	12(%esp),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	16(%esp),	%ecx
	movl	20(%esp),	%edx
	xorl	%eax,		%ecx
	xorl	%ebx,		%edx
	movl	(%esi),		%eax
	movl	4(%esi),	%ebx
	movl	%ecx,		(%edi)
	movl	%edx,		4(%edi)
	movl	%eax,		16(%esp)
	movl	%ebx,		20(%esp)
	addl	$8,		%esi
	addl	$8,		%edi
	subl	$8,		%ebp
	jnz	.L014decrypt_loop
.L013decrypt_finish:
	movl	52(%esp),	%ebp
	andl	$7,		%ebp
	jz	.L003finish
	movl	(%esi),		%eax
	movl	4(%esi),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	%eax,		8(%esp)
	movl	%ebx,		12(%esp)
	call	CAST_decrypt
	movl	8(%esp),	%eax
	movl	12(%esp),	%ebx
	bswapl	%eax
	bswapl	%ebx
	movl	16(%esp),	%ecx
	movl	20(%esp),	%edx
	xorl	%eax,		%ecx
	xorl	%ebx,		%edx
	movl	(%esi),		%eax
	movl	4(%esi),	%ebx
.L015dj7:
	rorl	$16,		%edx
	movb	%dl,		6(%edi)
	shrl	$16,		%edx
.L016dj6:
	movb	%dh,		5(%edi)
.L017dj5:
	movb	%dl,		4(%edi)
.L018dj4:
	movl	%ecx,		(%edi)
	jmp	.L019djend
.L020dj3:
	rorl	$16,		%ecx
	movb	%cl,		2(%edi)
	sall	$16,		%ecx
.L021dj2:
	movb	%ch,		1(%esi)
.L022dj1:
	movb	%cl,		(%esi)
.L019djend:
	jmp	.L003finish
.align ALIGN
.L003finish:
	movl	60(%esp),	%ecx
	addl	$24,		%esp
	movl	%eax,		(%ecx)
	movl	%ebx,		4(%ecx)
	popl	%edi
	popl	%esi
	popl	%ebx
	popl	%ebp
	ret
.align ALIGN
.L004cbc_enc_jmp_table:
	.long 0
	.long .L012ej1
	.long .L011ej2
	.long .L010ej3
	.long .L008ej4
	.long .L007ej5
	.long .L006ej6
	.long .L005ej7
.align ALIGN
.L023cbc_dec_jmp_table:
	.long 0
	.long .L022dj1
	.long .L021dj2
	.long .L020dj3
	.long .L018dj4
	.long .L017dj5
	.long .L016dj6
	.long .L015dj7
.CAST_cbc_encrypt_end:
	SIZE(CAST_cbc_encrypt,.CAST_cbc_encrypt_end-CAST_cbc_encrypt)
.ident	"desasm.pl"
12

cx86unix.cpp - 源码说明

本页面展示了「提供了很多种加密算法和CA认证及相关服务如CMP、OCSP等的开发」中的 cx86unix.cpp 源码文件，采用 C++ 编程语言编写，共 982 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫开发者社区收录了大量与加密算法相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?