Commit 9e6cf9fe authored by Niels Möller's avatar Niels Möller

(aes_decrypt): Use _aes_decrypt_table instead of

itbl1-4. Commented out the inclusion of aes_tables.asm.

Rev: src/nettle/x86/aes.asm:1.11
parent b3ffb2f0
......@@ -22,7 +22,7 @@ C MA 02111-1307, USA.
.data
include_src(<x86/aes_tables.asm>)
C include_src(<x86/aes_tables.asm>)
......@@ -105,19 +105,19 @@ aes_decrypt:
movl %edx,%esi C copy first in
andl $0x000000ff,%esi C clear all but offset
shll $2,%esi C index in itbl1
movl itbl1(%esi),%edi
movl AES_TABLE0 + _aes_decrypt_table (%esi),%edi
movl %eax,%esi C second one
shrl $6,%esi
andl $0x000003fc,%esi C clear all but offset bytes
xorl itbl2(%esi),%edi
xorl AES_TABLE1 + _aes_decrypt_table (%esi),%edi
movl %ebx,%esi C third one
shrl $14,%esi
andl $0x000003fc,%esi
xorl itbl3(%esi),%edi
xorl AES_TABLE2 + _aes_decrypt_table (%esi),%edi
movl %ecx,%esi C fourth one
shrl $22,%esi
andl $0x000003fc,%esi
xorl itbl4(%esi),%edi
xorl AES_TABLE3 + _aes_decrypt_table (%esi),%edi
pushl %edi
C // Third column
......@@ -125,19 +125,19 @@ aes_decrypt:
movl %ecx,%esi C copy first in
andl $0x000000ff,%esi C clear all but offset
shll $2,%esi C index in itbl1
movl itbl1(%esi),%edi
movl AES_TABLE0 + _aes_decrypt_table (%esi),%edi
movl %edx,%esi C second one
shrl $6,%esi
andl $0x000003fc,%esi C clear all but offset bytes
xorl itbl2(%esi),%edi
xorl AES_TABLE1 + _aes_decrypt_table (%esi),%edi
movl %eax,%esi C third one
shrl $14,%esi
andl $0x000003fc,%esi
xorl itbl3(%esi),%edi
xorl AES_TABLE2 + _aes_decrypt_table (%esi),%edi
movl %ebx,%esi C fourth one
shrl $22,%esi
andl $0x000003fc,%esi
xorl itbl4(%esi),%edi
xorl AES_TABLE3 + _aes_decrypt_table (%esi),%edi
pushl %edi C save first on stack
C // Fourth column
......@@ -145,19 +145,19 @@ aes_decrypt:
movl %ebx,%esi C copy first in
andl $0x000000ff,%esi C clear all but offset
shll $2,%esi C index in itbl1
movl itbl1(%esi),%edi
movl AES_TABLE0 + _aes_decrypt_table (%esi),%edi
movl %ecx,%esi C second one
shrl $6,%esi
andl $0x000003fc,%esi C clear all but offset bytes
xorl itbl2(%esi),%edi
xorl AES_TABLE1 + _aes_decrypt_table (%esi),%edi
movl %edx,%esi C third one
shrl $14,%esi
andl $0x000003fc,%esi
xorl itbl3(%esi),%edi
xorl AES_TABLE2 + _aes_decrypt_table (%esi),%edi
movl %eax,%esi C fourth one
shrl $22,%esi
andl $0x000003fc,%esi
xorl itbl4(%esi),%edi
xorl AES_TABLE3 + _aes_decrypt_table (%esi),%edi
movl %edi,%edx
popl %ecx
......
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