diff options
Diffstat (limited to 'beecrypt/win32/mwerks/blowfishopt.i586.asm')
| -rw-r--r-- | beecrypt/win32/mwerks/blowfishopt.i586.asm | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/beecrypt/win32/mwerks/blowfishopt.i586.asm b/beecrypt/win32/mwerks/blowfishopt.i586.asm new file mode 100644 index 000000000..673214119 --- /dev/null +++ b/beecrypt/win32/mwerks/blowfishopt.i586.asm @@ -0,0 +1,173 @@ +# +# blowfishopt.i586.asm +# +# Assembler optimized blowfish routines for Intel Pentium processors +# +# Compile target is Metrowerks CodeWarrior Pro 5 for Windows +# +# Copyright (c) 2000 Virtual Unlimited B.V. +# +# Author: Bob Deblier <bob@virtualunlimited.com> +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# + +etworounds: .macro p + xor ecx,[esi+p] + rol ecx,16 + mov al,ch + mov bl,cl + rol ecx,16 + mov edi,[esi+eax*4+72+0x000] + add edi,[esi+ebx*4+72+0x400] + mov al,ch + mov bl,cl + xor edi,[esi+eax*4+72+0x800] + add edi,[esi+ebx*4+72+0xC00] + xor edx,edi + xor edx,[esi+p+4] + rol edx,16 + mov al,dh + mov bl,dl + rol edx,16 + mov edi,[esi+eax*4+72+0x000] + add edi,[esi+ebx*4+72+0x400] + mov al,dh + mov bl,dl + xor edi,[esi+eax*4+72+0x800] + add edi,[esi+ebx*4+72+0xC00] + xor ecx,edi + .endm + +dtworounds: .macro p + xor ecx,[esi+p+4] + rol ecx,16 + mov al,ch + mov bl,cl + rol ecx,16 + mov edi,[esi+eax*4+72+0x000] + add edi,[esi+ebx*4+72+0x400] + mov al,ch + mov bl,cl + xor edi,[esi+eax*4+72+0x800] + add edi,[esi+ebx*4+72+0xC00] + xor edx,edi + xor edx,[esi+p] + rol edx,16 + mov al,dh + mov bl,dl + rol edx,16 + mov edi,[esi+eax*4+72+0x000] + add edi,[esi+ebx*4+72+0x400] + mov al,dh + mov bl,dl + xor edi,[esi+eax*4+72+0x800] + add edi,[esi+ebx*4+72+0xC00] + xor ecx,edi + .endm + + .text + + .align 4 + .globl _blowfishEncrypt + +_blowfishEncrypt: + push edi + push esi + push ebx + + mov esi,[esp+16] + mov edi,[esp+20] + + xor eax,eax + xor ebx,ebx + + mov ecx,[edi] + mov edx,[edi+4] + + bswap ecx + bswap edx + + etworounds 0 + etworounds 8 + etworounds 16 + etworounds 24 + etworounds 32 + etworounds 40 + etworounds 48 + etworounds 56 + + mov edi,[esp+20] + xor ecx,[esi+64] + xor edx,[esi+68] + + bswap ecx + bswap edx + + mov [edi+4],ecx + mov [edi],edx + + xor eax,eax + + pop ebx + pop esi + pop edi + ret + + .align 4 + .globl _blowfishDecrypt + +_blowfishDecrypt: + push edi + push esi + push ebx + + mov esi,[esp+16] + mov edi,[esp+20] + + xor eax,eax + xor ebx,ebx + + mov ecx,[edi] + mov edx,[edi+4] + + bswap ecx + bswap edx + + dtworounds 64 + dtworounds 56 + dtworounds 48 + dtworounds 40 + dtworounds 32 + dtworounds 24 + dtworounds 16 + dtworounds 8 + + mov edi,[esp+20] + xor ecx,[esi+4] + xor edx,[esi] + + bswap ecx + bswap edx + + mov [edi+4],ecx + mov [edi],edx + + xor eax,eax + + pop ebx + pop esi + pop edi + ret |