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Diffstat (limited to 'protocols/Tlen/src/crypto/padlock.c')
| -rw-r--r-- | protocols/Tlen/src/crypto/padlock.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/protocols/Tlen/src/crypto/padlock.c b/protocols/Tlen/src/crypto/padlock.c deleted file mode 100644 index 2e2e4775ff..0000000000 --- a/protocols/Tlen/src/crypto/padlock.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * VIA PadLock support functions - * - * Copyright (C) 2006-2010, Brainspark B.V. - * - * This file is part of PolarSSL (http://www.polarssl.org) - * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> - * - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ -/* - * This implementation is based on the VIA PadLock Programming Guide: - * - * http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/ - * programming_guide.pdf - */ - -#include "polarssl/config.h" - -#if defined(POLARSSL_PADLOCK_C) - -#include "polarssl/padlock.h" - -#if defined(POLARSSL_HAVE_X86) - -/* - * PadLock detection routine - */ -int padlock_supports( int feature ) -{ - static int flags = -1; - int ebx, edx; - - if( flags == -1 ) - { - asm( "movl %%ebx, %0 \n" \ - "movl $0xC0000000, %%eax \n" \ - "cpuid \n" \ - "cmpl $0xC0000001, %%eax \n" \ - "movl $0, %%edx \n" \ - "jb unsupported \n" \ - "movl $0xC0000001, %%eax \n" \ - "cpuid \n" \ - "unsupported: \n" \ - "movl %%edx, %1 \n" \ - "movl %2, %%ebx \n" - : "=m" (ebx), "=m" (edx) - : "m" (ebx) - : "eax", "ecx", "edx" ); - - flags = edx; - } - - return( flags & feature ); -} - -/* - * PadLock AES-ECB block en(de)cryption - */ -int padlock_xcryptecb( aes_context *ctx, - int mode, - const unsigned char input[16], - unsigned char output[16] ) -{ - int ebx; - unsigned long *rk; - unsigned long *blk; - unsigned long *ctrl; - unsigned char buf[256]; - - rk = ctx->rk; - blk = PADLOCK_ALIGN16( buf ); - memcpy( blk, input, 16 ); - - ctrl = blk + 4; - *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode^1 ) - 10 ) << 9 ); - - asm( "pushfl; popfl \n" \ - "movl %%ebx, %0 \n" \ - "movl $1, %%ecx \n" \ - "movl %2, %%edx \n" \ - "movl %3, %%ebx \n" \ - "movl %4, %%esi \n" \ - "movl %4, %%edi \n" \ - ".byte 0xf3,0x0f,0xa7,0xc8\n" \ - "movl %1, %%ebx \n" - : "=m" (ebx) - : "m" (ebx), "m" (ctrl), "m" (rk), "m" (blk) - : "ecx", "edx", "esi", "edi" ); - - memcpy( output, blk, 16 ); - - return( 0 ); -} - -/* - * PadLock AES-CBC buffer en(de)cryption - */ -int padlock_xcryptcbc( aes_context *ctx, - int mode, - size_t length, - unsigned char iv[16], - const unsigned char *input, - unsigned char *output ) -{ - int ebx; - size_t count; - unsigned long *rk; - unsigned long *iw; - unsigned long *ctrl; - unsigned char buf[256]; - - if( ( (long) input & 15 ) != 0 || - ( (long) output & 15 ) != 0 ) - return( POLARSSL_ERR_PADLOCK_DATA_MISALIGNED ); - - rk = ctx->rk; - iw = PADLOCK_ALIGN16( buf ); - memcpy( iw, iv, 16 ); - - ctrl = iw + 4; - *ctrl = 0x80 | ctx->nr | ( ( ctx->nr + (mode^1) - 10 ) << 9 ); - - count = (length + 15) >> 4; - - asm( "pushfl; popfl \n" \ - "movl %%ebx, %0 \n" \ - "movl %2, %%ecx \n" \ - "movl %3, %%edx \n" \ - "movl %4, %%ebx \n" \ - "movl %5, %%esi \n" \ - "movl %6, %%edi \n" \ - "movl %7, %%eax \n" \ - ".byte 0xf3,0x0f,0xa7,0xd0\n" \ - "movl %1, %%ebx \n" - : "=m" (ebx) - : "m" (ebx), "m" (count), "m" (ctrl), - "m" (rk), "m" (input), "m" (output), "m" (iw) - : "eax", "ecx", "edx", "esi", "edi" ); - - memcpy( iv, iw, 16 ); - - return( 0 ); -} - -#endif - -#endif |