/* $NetBSD: bf_enc_586.S,v 1.5 2007/12/11 23:13:57 lukem Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/*
* Modified from the output of `perl bf-586.pl elf' by
* Jason R. Thorpe <thorpej@zembu.com> and Thor Lancelot Simon
* <tls@NetBSD.org>
*/
#include <i386/include/asm.h>
__KERNEL_RCSID(1, "$NetBSD: bf_enc_586.S,v 1.5 2007/12/11 23:13:57 lukem Exp $");
ENTRY(BF_encrypt)
pushl %ebp
pushl %ebx
movl 12(%esp), %ebx
movl 16(%esp), %ebp
pushl %esi
pushl %edi
/* Load the 2 words */
movl (%ebx), %edi
movl 4(%ebx), %esi
xorl %eax, %eax
movl (%ebp), %ebx
xorl %ecx, %ecx
xorl %ebx, %edi
/* Round 0 */
movl 4(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 1 */
movl 8(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 2 */
movl 12(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 3 */
movl 16(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 4 */
movl 20(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 5 */
movl 24(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 6 */
movl 28(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 7 */
movl 32(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 8 */
movl 36(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 9 */
movl 40(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 10 */
movl 44(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 11 */
movl 48(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 12 */
movl 52(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 13 */
movl 56(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 14 */
movl 60(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 15 */
movl 64(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
# Load parameter 0 (16) enc=1
movl 20(%esp), %eax
xorl %ebx, %edi
movl 68(%ebp), %edx
xorl %edx, %esi
movl %edi, 4(%eax)
movl %esi, (%eax)
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
.L_BF_encrypt_end:
.size _C_LABEL(BF_encrypt),.L_BF_encrypt_end-_C_LABEL(BF_encrypt)
ENTRY(BF_decrypt)
pushl %ebp
pushl %ebx
movl 12(%esp), %ebx
movl 16(%esp), %ebp
pushl %esi
pushl %edi
# Load the 2 words
movl (%ebx), %edi
movl 4(%ebx), %esi
xorl %eax, %eax
movl 68(%ebp), %ebx
xorl %ecx, %ecx
xorl %ebx, %edi
/* Round 16 */
movl 64(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 15 */
movl 60(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 14 */
movl 56(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 13 */
movl 52(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 12 */
movl 48(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 11 */
movl 44(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 10 */
movl 40(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 9 */
movl 36(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 8 */
movl 32(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 7 */
movl 28(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 6 */
movl 24(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 5 */
movl 20(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 4 */
movl 16(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 3 */
movl 12(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %edi
/* Round 2 */
movl 8(%ebp), %edx
movl %edi, %ebx
xorl %edx, %esi
shrl $16, %ebx
movl %edi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
xorl %eax, %eax
xorl %ebx, %esi
/* Round 1 */
movl 4(%ebp), %edx
movl %esi, %ebx
xorl %edx, %edi
shrl $16, %ebx
movl %esi, %edx
movb %bh, %al
andl $255, %ebx
movb %dh, %cl
andl $255, %edx
movl 72(%ebp,%eax,4),%eax
movl 1096(%ebp,%ebx,4),%ebx
addl %eax, %ebx
movl 2120(%ebp,%ecx,4),%eax
xorl %eax, %ebx
movl 3144(%ebp,%edx,4),%edx
addl %edx, %ebx
# Load parameter 0 (1) enc=0
movl 20(%esp), %eax
xorl %ebx, %edi
movl (%ebp), %edx
xorl %edx, %esi
movl %edi, 4(%eax)
movl %esi, (%eax)
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
.L_BF_decrypt_end:
.size _C_LABEL(BF_decrypt),.L_BF_decrypt_end-_C_LABEL(BF_decrypt)