📄 c-sol.s
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/ 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 xorl %ecx, %esi nop movl 20(%esp), %eax 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 16.globl CAST_cbc_encrypt .type CAST_cbc_encrypt,@functionCAST_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 .L002decrypt andl $4294967288, %ebp movl 8(%esp), %eax movl 12(%esp), %ebx jz .L003encrypt_finish.L004encrypt_loop: movl (%esi), %ecx movl 4(%esi), %edx xorl %ecx, %eax xorl %edx, %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, 8(%esp) movl %ebx, 12(%esp) call CAST_encrypt movl 8(%esp), %eax movl 12(%esp), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, (%edi) movl %ebx, 4(%edi) addl $8, %esi addl $8, %edi subl $8, %ebp jnz .L004encrypt_loop.L003encrypt_finish: movl 52(%esp), %ebp andl $7, %ebp jz .L005finish xorl %ecx, %ecx xorl %edx, %edx movl .L006cbc_enc_jmp_table(,%ebp,4),%ebp jmp *%ebp.L007ej7: xorl %edx, %edx movb 6(%esi), %dh sall $8, %edx.L008ej6: movb 5(%esi), %dh.L009ej5: movb 4(%esi), %dl.L010ej4: movl (%esi), %ecx jmp .L011ejend.L012ej3: movb 2(%esi), %ch xorl %ecx, %ecx sall $8, %ecx.L013ej2: movb 1(%esi), %ch.L014ej1: movb (%esi), %cl.L011ejend: xorl %ecx, %eax xorl %edx, %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, 8(%esp) movl %ebx, 12(%esp) call CAST_encrypt movl 8(%esp), %eax movl 12(%esp), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, (%edi) movl %ebx, 4(%edi) jmp .L005finish.align 16.L002decrypt: andl $4294967288, %ebp movl 16(%esp), %eax movl 20(%esp), %ebx jz .L015decrypt_finish.L016decrypt_loop: movl (%esi), %eax movl 4(%esi), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, 8(%esp) movl %ebx, 12(%esp) call CAST_decrypt movl 8(%esp), %eax movl 12(%esp), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / 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 .L016decrypt_loop.L015decrypt_finish: movl 52(%esp), %ebp andl $7, %ebp jz .L005finish movl (%esi), %eax movl 4(%esi), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl %eax, 8(%esp) movl %ebx, 12(%esp) call CAST_decrypt movl 8(%esp), %eax movl 12(%esp), %ebx.byte 15.byte 200 / bswapl %eax .byte 15.byte 203 / bswapl %ebx movl 16(%esp), %ecx movl 20(%esp), %edx xorl %eax, %ecx xorl %ebx, %edx movl (%esi), %eax movl 4(%esi), %ebx.L017dj7: rorl $16, %edx movb %dl, 6(%edi) shrl $16, %edx.L018dj6: movb %dh, 5(%edi).L019dj5: movb %dl, 4(%edi).L020dj4: movl %ecx, (%edi) jmp .L021djend.L022dj3: rorl $16, %ecx movb %cl, 2(%edi) sall $16, %ecx.L023dj2: movb %ch, 1(%esi).L024dj1: movb %cl, (%esi).L021djend: jmp .L005finish.align 16.L005finish: movl 60(%esp), %ecx addl $24, %esp movl %eax, (%ecx) movl %ebx, 4(%ecx) popl %edi popl %esi popl %ebx popl %ebp ret.align 16.L006cbc_enc_jmp_table: .long 0 .long .L014ej1 .long .L013ej2 .long .L012ej3 .long .L010ej4 .long .L009ej5 .long .L008ej6 .long .L007ej7.align 16.L025cbc_dec_jmp_table: .long 0 .long .L024dj1 .long .L023dj2 .long .L022dj3 .long .L020dj4 .long .L019dj5 .long .L018dj6 .long .L017dj7.L_CAST_cbc_encrypt_end: .size CAST_cbc_encrypt,.L_CAST_cbc_encrypt_end-CAST_cbc_encrypt.ident "desasm.pl"⌨️ 快捷键说明
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