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858 lines
14 KiB
858 lines
14 KiB
.file "bf-686.s"
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.text
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.globl _BF_encrypt
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.align 4
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_BF_encrypt:
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L_BF_encrypt_begin:
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pushl %ebp
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pushl %ebx
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pushl %esi
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pushl %edi
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# Load the 2 words
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movl 20(%esp),%eax
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movl (%eax),%ecx
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movl 4(%eax),%edx
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# P pointer, s and enc flag
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movl 24(%esp),%edi
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xorl %eax,%eax
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xorl %ebx,%ebx
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xorl (%edi),%ecx
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# Round 0
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rorl $16,%ecx
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movl 4(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 1
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rorl $16,%edx
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movl 8(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 2
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rorl $16,%ecx
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movl 12(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 3
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rorl $16,%edx
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movl 16(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 4
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rorl $16,%ecx
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movl 20(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 5
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rorl $16,%edx
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movl 24(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 6
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rorl $16,%ecx
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movl 28(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 7
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rorl $16,%edx
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movl 32(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 8
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rorl $16,%ecx
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movl 36(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 9
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rorl $16,%edx
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movl 40(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 10
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rorl $16,%ecx
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movl 44(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 11
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rorl $16,%edx
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movl 48(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 12
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rorl $16,%ecx
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movl 52(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 13
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rorl $16,%edx
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movl 56(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 14
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rorl $16,%ecx
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movl 60(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 15
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rorl $16,%edx
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movl 64(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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xorl 68(%edi),%edx
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movl 20(%esp),%eax
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movl %edx,(%eax)
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movl %ecx,4(%eax)
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popl %edi
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popl %esi
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popl %ebx
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popl %ebp
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ret
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.globl _BF_decrypt
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.align 4
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_BF_decrypt:
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L_BF_decrypt_begin:
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pushl %ebp
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pushl %ebx
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pushl %esi
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pushl %edi
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# Load the 2 words
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movl 20(%esp),%eax
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movl (%eax),%ecx
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movl 4(%eax),%edx
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# P pointer, s and enc flag
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movl 24(%esp),%edi
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xorl %eax,%eax
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xorl %ebx,%ebx
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xorl 68(%edi),%ecx
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# Round 16
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rorl $16,%ecx
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movl 64(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 15
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rorl $16,%edx
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movl 60(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 14
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rorl $16,%ecx
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movl 56(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 13
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rorl $16,%edx
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movl 52(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 12
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rorl $16,%ecx
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movl 48(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 11
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rorl $16,%edx
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movl 44(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 10
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rorl $16,%ecx
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movl 40(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 9
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rorl $16,%edx
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movl 36(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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xorl %esi,%ecx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %dh,%al
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movb %dl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%ecx
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# Round 8
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rorl $16,%ecx
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movl 32(%edi),%esi
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movb %ch,%al
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movb %cl,%bl
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rorl $16,%ecx
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xorl %esi,%edx
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movl 72(%edi,%eax,4),%esi
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movl 1096(%edi,%ebx,4),%ebp
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movb %ch,%al
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movb %cl,%bl
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addl %ebp,%esi
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movl 2120(%edi,%eax,4),%eax
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xorl %eax,%esi
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movl 3144(%edi,%ebx,4),%ebp
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addl %ebp,%esi
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xorl %eax,%eax
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xorl %esi,%edx
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# Round 7
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rorl $16,%edx
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movl 28(%edi),%esi
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movb %dh,%al
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movb %dl,%bl
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rorl $16,%edx
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|
xorl %esi,%ecx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%ecx
|
|
|
|
# Round 6
|
|
rorl $16,%ecx
|
|
movl 24(%edi),%esi
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
rorl $16,%ecx
|
|
xorl %esi,%edx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%edx
|
|
|
|
# Round 5
|
|
rorl $16,%edx
|
|
movl 20(%edi),%esi
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
rorl $16,%edx
|
|
xorl %esi,%ecx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%ecx
|
|
|
|
# Round 4
|
|
rorl $16,%ecx
|
|
movl 16(%edi),%esi
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
rorl $16,%ecx
|
|
xorl %esi,%edx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%edx
|
|
|
|
# Round 3
|
|
rorl $16,%edx
|
|
movl 12(%edi),%esi
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
rorl $16,%edx
|
|
xorl %esi,%ecx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%ecx
|
|
|
|
# Round 2
|
|
rorl $16,%ecx
|
|
movl 8(%edi),%esi
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
rorl $16,%ecx
|
|
xorl %esi,%edx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %ch,%al
|
|
movb %cl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%edx
|
|
|
|
# Round 1
|
|
rorl $16,%edx
|
|
movl 4(%edi),%esi
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
rorl $16,%edx
|
|
xorl %esi,%ecx
|
|
movl 72(%edi,%eax,4),%esi
|
|
movl 1096(%edi,%ebx,4),%ebp
|
|
movb %dh,%al
|
|
movb %dl,%bl
|
|
addl %ebp,%esi
|
|
movl 2120(%edi,%eax,4),%eax
|
|
xorl %eax,%esi
|
|
movl 3144(%edi,%ebx,4),%ebp
|
|
addl %ebp,%esi
|
|
xorl %eax,%eax
|
|
xorl %esi,%ecx
|
|
xorl (%edi),%edx
|
|
movl 20(%esp),%eax
|
|
movl %edx,(%eax)
|
|
movl %ecx,4(%eax)
|
|
popl %edi
|
|
popl %esi
|
|
popl %ebx
|
|
popl %ebp
|
|
ret
|
|
.globl _BF_cbc_encrypt
|
|
.align 4
|
|
_BF_cbc_encrypt:
|
|
L_BF_cbc_encrypt_begin:
|
|
|
|
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
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl %eax,8(%esp)
|
|
movl %ebx,12(%esp)
|
|
call L_BF_encrypt_begin
|
|
movl 8(%esp),%eax
|
|
movl 12(%esp),%ebx
|
|
bswap %eax
|
|
bswap %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
|
|
call L004PIC_point
|
|
L004PIC_point:
|
|
popl %edx
|
|
leal L005cbc_enc_jmp_table-L004PIC_point(%edx),%ecx
|
|
movl (%ecx,%ebp,4),%ebp
|
|
addl %edx,%ebp
|
|
xorl %ecx,%ecx
|
|
xorl %edx,%edx
|
|
jmp *%ebp
|
|
L006ej7:
|
|
movb 6(%esi),%dh
|
|
shll $8,%edx
|
|
L007ej6:
|
|
movb 5(%esi),%dh
|
|
L008ej5:
|
|
movb 4(%esi),%dl
|
|
L009ej4:
|
|
movl (%esi),%ecx
|
|
jmp L010ejend
|
|
L011ej3:
|
|
movb 2(%esi),%ch
|
|
shll $8,%ecx
|
|
L012ej2:
|
|
movb 1(%esi),%ch
|
|
L013ej1:
|
|
movb (%esi),%cl
|
|
L010ejend:
|
|
xorl %ecx,%eax
|
|
xorl %edx,%ebx
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl %eax,8(%esp)
|
|
movl %ebx,12(%esp)
|
|
call L_BF_encrypt_begin
|
|
movl 8(%esp),%eax
|
|
movl 12(%esp),%ebx
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl %eax,(%edi)
|
|
movl %ebx,4(%edi)
|
|
jmp L003finish
|
|
L000decrypt:
|
|
andl $4294967288,%ebp
|
|
movl 16(%esp),%eax
|
|
movl 20(%esp),%ebx
|
|
jz L014decrypt_finish
|
|
L015decrypt_loop:
|
|
movl (%esi),%eax
|
|
movl 4(%esi),%ebx
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl %eax,8(%esp)
|
|
movl %ebx,12(%esp)
|
|
call L_BF_decrypt_begin
|
|
movl 8(%esp),%eax
|
|
movl 12(%esp),%ebx
|
|
bswap %eax
|
|
bswap %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 L015decrypt_loop
|
|
L014decrypt_finish:
|
|
movl 52(%esp),%ebp
|
|
andl $7,%ebp
|
|
jz L003finish
|
|
movl (%esi),%eax
|
|
movl 4(%esi),%ebx
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl %eax,8(%esp)
|
|
movl %ebx,12(%esp)
|
|
call L_BF_decrypt_begin
|
|
movl 8(%esp),%eax
|
|
movl 12(%esp),%ebx
|
|
bswap %eax
|
|
bswap %ebx
|
|
movl 16(%esp),%ecx
|
|
movl 20(%esp),%edx
|
|
xorl %eax,%ecx
|
|
xorl %ebx,%edx
|
|
movl (%esi),%eax
|
|
movl 4(%esi),%ebx
|
|
L016dj7:
|
|
rorl $16,%edx
|
|
movb %dl,6(%edi)
|
|
shrl $16,%edx
|
|
L017dj6:
|
|
movb %dh,5(%edi)
|
|
L018dj5:
|
|
movb %dl,4(%edi)
|
|
L019dj4:
|
|
movl %ecx,(%edi)
|
|
jmp L020djend
|
|
L021dj3:
|
|
rorl $16,%ecx
|
|
movb %cl,2(%edi)
|
|
shll $16,%ecx
|
|
L022dj2:
|
|
movb %ch,1(%esi)
|
|
L023dj1:
|
|
movb %cl,(%esi)
|
|
L020djend:
|
|
jmp L003finish
|
|
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 6,0x90
|
|
L005cbc_enc_jmp_table:
|
|
.long 0
|
|
.long L013ej1-L004PIC_point
|
|
.long L012ej2-L004PIC_point
|
|
.long L011ej3-L004PIC_point
|
|
.long L009ej4-L004PIC_point
|
|
.long L008ej5-L004PIC_point
|
|
.long L007ej6-L004PIC_point
|
|
.long L006ej7-L004PIC_point
|
|
.align 6,0x90
|
|
|