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563 lines
9.1 KiB
563 lines
9.1 KiB
.file "rc5-586.s"
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.text
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.globl _RC5_32_encrypt
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.align 4
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_RC5_32_encrypt:
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L_RC5_32_encrypt_begin:
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pushl %ebp
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pushl %esi
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pushl %edi
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movl 16(%esp),%edx
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movl 20(%esp),%ebp
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# Load the 2 words
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movl (%edx),%edi
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movl 4(%edx),%esi
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pushl %ebx
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movl (%ebp),%ebx
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addl 4(%ebp),%edi
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addl 8(%ebp),%esi
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xorl %esi,%edi
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movl 12(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 16(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 20(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 24(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 28(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 32(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 36(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 40(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 44(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 48(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 52(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 56(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 60(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 64(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 68(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 72(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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cmpl $8,%ebx
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je L000rc5_exit
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xorl %esi,%edi
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movl 76(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 80(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 84(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 88(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 92(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 96(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 100(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 104(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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cmpl $12,%ebx
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je L000rc5_exit
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xorl %esi,%edi
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movl 108(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 112(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 116(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 120(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 124(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 128(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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xorl %esi,%edi
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movl 132(%ebp),%eax
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movl %esi,%ecx
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roll %cl,%edi
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addl %eax,%edi
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xorl %edi,%esi
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movl 136(%ebp),%eax
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movl %edi,%ecx
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roll %cl,%esi
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addl %eax,%esi
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L000rc5_exit:
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movl %edi,(%edx)
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movl %esi,4(%edx)
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popl %ebx
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popl %edi
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popl %esi
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popl %ebp
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ret
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.globl _RC5_32_decrypt
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.align 4
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_RC5_32_decrypt:
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L_RC5_32_decrypt_begin:
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pushl %ebp
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pushl %esi
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pushl %edi
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movl 16(%esp),%edx
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movl 20(%esp),%ebp
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# Load the 2 words
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movl (%edx),%edi
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movl 4(%edx),%esi
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pushl %ebx
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movl (%ebp),%ebx
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cmpl $12,%ebx
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je L001rc5_dec_12
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cmpl $8,%ebx
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je L002rc5_dec_8
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movl 136(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 132(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 128(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 124(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 120(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 116(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 112(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 108(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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L001rc5_dec_12:
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movl 104(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 100(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 96(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 92(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 88(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 84(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 80(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 76(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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L002rc5_dec_8:
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movl 72(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 68(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 64(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 60(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 56(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 52(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 48(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 44(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 40(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 36(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 32(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 28(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 24(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 20(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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movl 16(%ebp),%eax
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subl %eax,%esi
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movl %edi,%ecx
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rorl %cl,%esi
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xorl %edi,%esi
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movl 12(%ebp),%eax
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subl %eax,%edi
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movl %esi,%ecx
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rorl %cl,%edi
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xorl %esi,%edi
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subl 8(%ebp),%esi
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subl 4(%ebp),%edi
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L003rc5_exit:
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movl %edi,(%edx)
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movl %esi,4(%edx)
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popl %ebx
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popl %edi
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popl %esi
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popl %ebp
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ret
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.globl _RC5_32_cbc_encrypt
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.align 4
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_RC5_32_cbc_encrypt:
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L_RC5_32_cbc_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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movl 28(%esp),%ebp
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# getting iv ptr from parameter 4
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movl 36(%esp),%ebx
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movl (%ebx),%esi
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movl 4(%ebx),%edi
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pushl %edi
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pushl %esi
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pushl %edi
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pushl %esi
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movl %esp,%ebx
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movl 36(%esp),%esi
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movl 40(%esp),%edi
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# getting encrypt flag from parameter 5
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movl 56(%esp),%ecx
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# get and push parameter 3
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movl 48(%esp),%eax
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pushl %eax
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pushl %ebx
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cmpl $0,%ecx
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jz L004decrypt
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andl $4294967288,%ebp
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movl 8(%esp),%eax
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movl 12(%esp),%ebx
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jz L005encrypt_finish
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L006encrypt_loop:
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movl (%esi),%ecx
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movl 4(%esi),%edx
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xorl %ecx,%eax
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xorl %edx,%ebx
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movl %eax,8(%esp)
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movl %ebx,12(%esp)
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call L_RC5_32_encrypt_begin
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movl 8(%esp),%eax
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movl 12(%esp),%ebx
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movl %eax,(%edi)
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movl %ebx,4(%edi)
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addl $8,%esi
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addl $8,%edi
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subl $8,%ebp
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jnz L006encrypt_loop
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L005encrypt_finish:
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movl 52(%esp),%ebp
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andl $7,%ebp
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jz L007finish
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call L008PIC_point
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L008PIC_point:
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popl %edx
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leal L009cbc_enc_jmp_table-L008PIC_point(%edx),%ecx
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movl (%ecx,%ebp,4),%ebp
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addl %edx,%ebp
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xorl %ecx,%ecx
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xorl %edx,%edx
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jmp *%ebp
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L010ej7:
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movb 6(%esi),%dh
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shll $8,%edx
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L011ej6:
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movb 5(%esi),%dh
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L012ej5:
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movb 4(%esi),%dl
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L013ej4:
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movl (%esi),%ecx
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jmp L014ejend
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L015ej3:
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movb 2(%esi),%ch
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shll $8,%ecx
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L016ej2:
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movb 1(%esi),%ch
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L017ej1:
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movb (%esi),%cl
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L014ejend:
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xorl %ecx,%eax
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xorl %edx,%ebx
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movl %eax,8(%esp)
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movl %ebx,12(%esp)
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call L_RC5_32_encrypt_begin
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movl 8(%esp),%eax
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movl 12(%esp),%ebx
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movl %eax,(%edi)
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movl %ebx,4(%edi)
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jmp L007finish
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L004decrypt:
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andl $4294967288,%ebp
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movl 16(%esp),%eax
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movl 20(%esp),%ebx
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jz L018decrypt_finish
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L019decrypt_loop:
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movl (%esi),%eax
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movl 4(%esi),%ebx
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movl %eax,8(%esp)
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movl %ebx,12(%esp)
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call L_RC5_32_decrypt_begin
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movl 8(%esp),%eax
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movl 12(%esp),%ebx
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movl 16(%esp),%ecx
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movl 20(%esp),%edx
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xorl %eax,%ecx
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xorl %ebx,%edx
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movl (%esi),%eax
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movl 4(%esi),%ebx
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movl %ecx,(%edi)
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movl %edx,4(%edi)
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movl %eax,16(%esp)
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movl %ebx,20(%esp)
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addl $8,%esi
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addl $8,%edi
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subl $8,%ebp
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jnz L019decrypt_loop
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L018decrypt_finish:
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movl 52(%esp),%ebp
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andl $7,%ebp
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jz L007finish
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movl (%esi),%eax
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movl 4(%esi),%ebx
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movl %eax,8(%esp)
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movl %ebx,12(%esp)
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call L_RC5_32_decrypt_begin
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movl 8(%esp),%eax
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movl 12(%esp),%ebx
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movl 16(%esp),%ecx
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movl 20(%esp),%edx
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xorl %eax,%ecx
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xorl %ebx,%edx
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movl (%esi),%eax
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movl 4(%esi),%ebx
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L020dj7:
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rorl $16,%edx
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movb %dl,6(%edi)
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shrl $16,%edx
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L021dj6:
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movb %dh,5(%edi)
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L022dj5:
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movb %dl,4(%edi)
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L023dj4:
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movl %ecx,(%edi)
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jmp L024djend
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L025dj3:
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rorl $16,%ecx
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movb %cl,2(%edi)
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shll $16,%ecx
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L026dj2:
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movb %ch,1(%esi)
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L027dj1:
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movb %cl,(%esi)
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L024djend:
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jmp L007finish
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L007finish:
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movl 60(%esp),%ecx
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addl $24,%esp
|
|
movl %eax,(%ecx)
|
|
movl %ebx,4(%ecx)
|
|
popl %edi
|
|
popl %esi
|
|
popl %ebx
|
|
popl %ebp
|
|
ret
|
|
.align 6,0x90
|
|
L009cbc_enc_jmp_table:
|
|
.long 0
|
|
.long L017ej1-L008PIC_point
|
|
.long L016ej2-L008PIC_point
|
|
.long L015ej3-L008PIC_point
|
|
.long L013ej4-L008PIC_point
|
|
.long L012ej5-L008PIC_point
|
|
.long L011ej6-L008PIC_point
|
|
.long L010ej7-L008PIC_point
|
|
.align 6,0x90
|
|
|