/* $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)