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Diffstat (limited to 'polarssl/src/library/md2.c')
-rw-r--r-- | polarssl/src/library/md2.c | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/polarssl/src/library/md2.c b/polarssl/src/library/md2.c deleted file mode 100644 index 954aa07..0000000 --- a/polarssl/src/library/md2.c +++ /dev/null @@ -1,364 +0,0 @@ -/* - * RFC 1115/1319 compliant MD2 implementation - * - * 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. - */ -/* - * The MD2 algorithm was designed by Ron Rivest in 1989. - * - * http://www.ietf.org/rfc/rfc1115.txt - * http://www.ietf.org/rfc/rfc1319.txt - */ - -#include "polarssl/config.h" - -#if defined(POLARSSL_MD2_C) - -#include "polarssl/md2.h" - -#if defined(POLARSSL_FS_IO) || defined(POLARSSL_SELF_TEST) -#include <stdio.h> -#endif - -static const unsigned char PI_SUBST[256] = -{ - 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, - 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3, - 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, - 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, - 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E, - 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, - 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, - 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, - 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, - 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3, - 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, - 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, - 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D, - 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, - 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, - 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, - 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, - 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E, - 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, - 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, - 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88, - 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, - 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, - 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, - 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, - 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14 -}; - -/* - * MD2 context setup - */ -void md2_starts( md2_context *ctx ) -{ - memset( ctx->cksum, 0, 16 ); - memset( ctx->state, 0, 46 ); - memset( ctx->buffer, 0, 16 ); - ctx->left = 0; -} - -static void md2_process( md2_context *ctx ) -{ - int i, j; - unsigned char t = 0; - - for( i = 0; i < 16; i++ ) - { - ctx->state[i + 16] = ctx->buffer[i]; - ctx->state[i + 32] = - (unsigned char)( ctx->buffer[i] ^ ctx->state[i]); - } - - for( i = 0; i < 18; i++ ) - { - for( j = 0; j < 48; j++ ) - { - ctx->state[j] = (unsigned char) - ( ctx->state[j] ^ PI_SUBST[t] ); - t = ctx->state[j]; - } - - t = (unsigned char)( t + i ); - } - - t = ctx->cksum[15]; - - for( i = 0; i < 16; i++ ) - { - ctx->cksum[i] = (unsigned char) - ( ctx->cksum[i] ^ PI_SUBST[ctx->buffer[i] ^ t] ); - t = ctx->cksum[i]; - } -} - -/* - * MD2 process buffer - */ -void md2_update( md2_context *ctx, const unsigned char *input, size_t ilen ) -{ - size_t fill; - - while( ilen > 0 ) - { - if( ctx->left + ilen > 16 ) - fill = 16 - ctx->left; - else - fill = ilen; - - memcpy( ctx->buffer + ctx->left, input, fill ); - - ctx->left += fill; - input += fill; - ilen -= fill; - - if( ctx->left == 16 ) - { - ctx->left = 0; - md2_process( ctx ); - } - } -} - -/* - * MD2 final digest - */ -void md2_finish( md2_context *ctx, unsigned char output[16] ) -{ - size_t i; - unsigned char x; - - x = (unsigned char)( 16 - ctx->left ); - - for( i = ctx->left; i < 16; i++ ) - ctx->buffer[i] = x; - - md2_process( ctx ); - - memcpy( ctx->buffer, ctx->cksum, 16 ); - md2_process( ctx ); - - memcpy( output, ctx->state, 16 ); -} - -/* - * output = MD2( input buffer ) - */ -void md2( const unsigned char *input, size_t ilen, unsigned char output[16] ) -{ - md2_context ctx; - - md2_starts( &ctx ); - md2_update( &ctx, input, ilen ); - md2_finish( &ctx, output ); - - memset( &ctx, 0, sizeof( md2_context ) ); -} - -#if defined(POLARSSL_FS_IO) -/* - * output = MD2( file contents ) - */ -int md2_file( const char *path, unsigned char output[16] ) -{ - FILE *f; - size_t n; - md2_context ctx; - unsigned char buf[1024]; - - if( ( f = fopen( path, "rb" ) ) == NULL ) - return( POLARSSL_ERR_MD2_FILE_IO_ERROR ); - - md2_starts( &ctx ); - - while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) - md2_update( &ctx, buf, n ); - - md2_finish( &ctx, output ); - - memset( &ctx, 0, sizeof( md2_context ) ); - - if( ferror( f ) != 0 ) - { - fclose( f ); - return( POLARSSL_ERR_MD2_FILE_IO_ERROR ); - } - - fclose( f ); - return( 0 ); -} -#endif /* POLARSSL_FS_IO */ - -/* - * MD2 HMAC context setup - */ -void md2_hmac_starts( md2_context *ctx, const unsigned char *key, size_t keylen ) -{ - size_t i; - unsigned char sum[16]; - - if( keylen > 16 ) - { - md2( key, keylen, sum ); - keylen = 16; - key = sum; - } - - memset( ctx->ipad, 0x36, 16 ); - memset( ctx->opad, 0x5C, 16 ); - - for( i = 0; i < keylen; i++ ) - { - ctx->ipad[i] = (unsigned char)( ctx->ipad[i] ^ key[i] ); - ctx->opad[i] = (unsigned char)( ctx->opad[i] ^ key[i] ); - } - - md2_starts( ctx ); - md2_update( ctx, ctx->ipad, 16 ); - - memset( sum, 0, sizeof( sum ) ); -} - -/* - * MD2 HMAC process buffer - */ -void md2_hmac_update( md2_context *ctx, const unsigned char *input, size_t ilen ) -{ - md2_update( ctx, input, ilen ); -} - -/* - * MD2 HMAC final digest - */ -void md2_hmac_finish( md2_context *ctx, unsigned char output[16] ) -{ - unsigned char tmpbuf[16]; - - md2_finish( ctx, tmpbuf ); - md2_starts( ctx ); - md2_update( ctx, ctx->opad, 16 ); - md2_update( ctx, tmpbuf, 16 ); - md2_finish( ctx, output ); - - memset( tmpbuf, 0, sizeof( tmpbuf ) ); -} - -/* - * MD2 HMAC context reset - */ -void md2_hmac_reset( md2_context *ctx ) -{ - md2_starts( ctx ); - md2_update( ctx, ctx->ipad, 16 ); -} - -/* - * output = HMAC-MD2( hmac key, input buffer ) - */ -void md2_hmac( const unsigned char *key, size_t keylen, - const unsigned char *input, size_t ilen, - unsigned char output[16] ) -{ - md2_context ctx; - - md2_hmac_starts( &ctx, key, keylen ); - md2_hmac_update( &ctx, input, ilen ); - md2_hmac_finish( &ctx, output ); - - memset( &ctx, 0, sizeof( md2_context ) ); -} - -#if defined(POLARSSL_SELF_TEST) - -/* - * RFC 1319 test vectors - */ -static const char md2_test_str[7][81] = -{ - { "" }, - { "a" }, - { "abc" }, - { "message digest" }, - { "abcdefghijklmnopqrstuvwxyz" }, - { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" }, - { "12345678901234567890123456789012345678901234567890123456789012" \ - "345678901234567890" } -}; - -static const unsigned char md2_test_sum[7][16] = -{ - { 0x83, 0x50, 0xE5, 0xA3, 0xE2, 0x4C, 0x15, 0x3D, - 0xF2, 0x27, 0x5C, 0x9F, 0x80, 0x69, 0x27, 0x73 }, - { 0x32, 0xEC, 0x01, 0xEC, 0x4A, 0x6D, 0xAC, 0x72, - 0xC0, 0xAB, 0x96, 0xFB, 0x34, 0xC0, 0xB5, 0xD1 }, - { 0xDA, 0x85, 0x3B, 0x0D, 0x3F, 0x88, 0xD9, 0x9B, - 0x30, 0x28, 0x3A, 0x69, 0xE6, 0xDE, 0xD6, 0xBB }, - { 0xAB, 0x4F, 0x49, 0x6B, 0xFB, 0x2A, 0x53, 0x0B, - 0x21, 0x9F, 0xF3, 0x30, 0x31, 0xFE, 0x06, 0xB0 }, - { 0x4E, 0x8D, 0xDF, 0xF3, 0x65, 0x02, 0x92, 0xAB, - 0x5A, 0x41, 0x08, 0xC3, 0xAA, 0x47, 0x94, 0x0B }, - { 0xDA, 0x33, 0xDE, 0xF2, 0xA4, 0x2D, 0xF1, 0x39, - 0x75, 0x35, 0x28, 0x46, 0xC3, 0x03, 0x38, 0xCD }, - { 0xD5, 0x97, 0x6F, 0x79, 0xD8, 0x3D, 0x3A, 0x0D, - 0xC9, 0x80, 0x6C, 0x3C, 0x66, 0xF3, 0xEF, 0xD8 } -}; - -/* - * Checkup routine - */ -int md2_self_test( int verbose ) -{ - int i; - unsigned char md2sum[16]; - - for( i = 0; i < 7; i++ ) - { - if( verbose != 0 ) - printf( " MD2 test #%d: ", i + 1 ); - - md2( (unsigned char *) md2_test_str[i], - strlen( md2_test_str[i] ), md2sum ); - - if( memcmp( md2sum, md2_test_sum[i], 16 ) != 0 ) - { - if( verbose != 0 ) - printf( "failed\n" ); - - return( 1 ); - } - - if( verbose != 0 ) - printf( "passed\n" ); - } - - if( verbose != 0 ) - printf( "\n" ); - - return( 0 ); -} - -#endif - -#endif |