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530 lines
16 KiB
C
Executable File
530 lines
16 KiB
C
Executable File
/*
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* RFC 1321 compliant MD5 implementation
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*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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*
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* This file is provided under the Apache License 2.0, or the
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* GNU General Public License v2.0 or later.
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*
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* **********
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* Apache License 2.0:
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* **********
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*
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* **********
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* GNU General Public License v2.0 or later:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* **********
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*/
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/*
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* The MD5 algorithm was designed by Ron Rivest in 1991.
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*
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* http://www.ietf.org/rfc/rfc1321.txt
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*/
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined(MBEDTLS_MD5_C)
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#include "mbedtls/md5.h"
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#include "mbedtls/platform_util.h"
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#include <string.h>
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#if defined(MBEDTLS_SELF_TEST)
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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#include <stdio.h>
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#define mbedtls_printf printf
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#endif /* MBEDTLS_PLATFORM_C */
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#endif /* MBEDTLS_SELF_TEST */
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#if !defined(MBEDTLS_MD5_ALT)
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/*
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* 32-bit integer manipulation macros (little endian)
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*/
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#ifndef GET_UINT32_LE
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#define GET_UINT32_LE(n,b,i) \
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{ \
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(n) = ( (uint32_t) (b)[(i) ] ) \
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| ( (uint32_t) (b)[(i) + 1] << 8 ) \
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| ( (uint32_t) (b)[(i) + 2] << 16 ) \
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| ( (uint32_t) (b)[(i) + 3] << 24 ); \
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}
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#endif
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#ifndef PUT_UINT32_LE
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#define PUT_UINT32_LE(n,b,i) \
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{ \
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(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
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(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
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(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
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(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
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}
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#endif
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void mbedtls_md5_init( mbedtls_md5_context *ctx )
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{
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memset( ctx, 0, sizeof( mbedtls_md5_context ) );
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}
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void mbedtls_md5_free( mbedtls_md5_context *ctx )
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{
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if( ctx == NULL )
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return;
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mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) );
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}
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void mbedtls_md5_clone( mbedtls_md5_context *dst,
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const mbedtls_md5_context *src )
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{
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*dst = *src;
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}
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/*
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* MD5 context setup
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*/
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int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
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{
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ctx->total[0] = 0;
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ctx->total[1] = 0;
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ctx->state[0] = 0x67452301;
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ctx->state[1] = 0xEFCDAB89;
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ctx->state[2] = 0x98BADCFE;
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ctx->state[3] = 0x10325476;
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return( 0 );
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md5_starts( mbedtls_md5_context *ctx )
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{
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mbedtls_md5_starts_ret( ctx );
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}
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#endif
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#if !defined(MBEDTLS_MD5_PROCESS_ALT)
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int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
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const unsigned char data[64] )
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{
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struct
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{
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uint32_t X[16], A, B, C, D;
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} local;
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GET_UINT32_LE( local.X[ 0], data, 0 );
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GET_UINT32_LE( local.X[ 1], data, 4 );
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GET_UINT32_LE( local.X[ 2], data, 8 );
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GET_UINT32_LE( local.X[ 3], data, 12 );
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GET_UINT32_LE( local.X[ 4], data, 16 );
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GET_UINT32_LE( local.X[ 5], data, 20 );
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GET_UINT32_LE( local.X[ 6], data, 24 );
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GET_UINT32_LE( local.X[ 7], data, 28 );
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GET_UINT32_LE( local.X[ 8], data, 32 );
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GET_UINT32_LE( local.X[ 9], data, 36 );
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GET_UINT32_LE( local.X[10], data, 40 );
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GET_UINT32_LE( local.X[11], data, 44 );
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GET_UINT32_LE( local.X[12], data, 48 );
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GET_UINT32_LE( local.X[13], data, 52 );
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GET_UINT32_LE( local.X[14], data, 56 );
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GET_UINT32_LE( local.X[15], data, 60 );
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#define S(x,n) \
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( ( (x) << (n) ) | ( ( (x) & 0xFFFFFFFF) >> ( 32 - (n) ) ) )
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#define P(a,b,c,d,k,s,t) \
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do \
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{ \
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(a) += F((b),(c),(d)) + local.X[(k)] + (t); \
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(a) = S((a),(s)) + (b); \
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} while( 0 )
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local.A = ctx->state[0];
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local.B = ctx->state[1];
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local.C = ctx->state[2];
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local.D = ctx->state[3];
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#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
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P( local.A, local.B, local.C, local.D, 0, 7, 0xD76AA478 );
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P( local.D, local.A, local.B, local.C, 1, 12, 0xE8C7B756 );
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P( local.C, local.D, local.A, local.B, 2, 17, 0x242070DB );
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P( local.B, local.C, local.D, local.A, 3, 22, 0xC1BDCEEE );
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P( local.A, local.B, local.C, local.D, 4, 7, 0xF57C0FAF );
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P( local.D, local.A, local.B, local.C, 5, 12, 0x4787C62A );
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P( local.C, local.D, local.A, local.B, 6, 17, 0xA8304613 );
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P( local.B, local.C, local.D, local.A, 7, 22, 0xFD469501 );
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P( local.A, local.B, local.C, local.D, 8, 7, 0x698098D8 );
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P( local.D, local.A, local.B, local.C, 9, 12, 0x8B44F7AF );
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P( local.C, local.D, local.A, local.B, 10, 17, 0xFFFF5BB1 );
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P( local.B, local.C, local.D, local.A, 11, 22, 0x895CD7BE );
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P( local.A, local.B, local.C, local.D, 12, 7, 0x6B901122 );
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P( local.D, local.A, local.B, local.C, 13, 12, 0xFD987193 );
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P( local.C, local.D, local.A, local.B, 14, 17, 0xA679438E );
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P( local.B, local.C, local.D, local.A, 15, 22, 0x49B40821 );
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#undef F
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#define F(x,y,z) ((y) ^ ((z) & ((x) ^ (y))))
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P( local.A, local.B, local.C, local.D, 1, 5, 0xF61E2562 );
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P( local.D, local.A, local.B, local.C, 6, 9, 0xC040B340 );
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P( local.C, local.D, local.A, local.B, 11, 14, 0x265E5A51 );
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P( local.B, local.C, local.D, local.A, 0, 20, 0xE9B6C7AA );
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P( local.A, local.B, local.C, local.D, 5, 5, 0xD62F105D );
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P( local.D, local.A, local.B, local.C, 10, 9, 0x02441453 );
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P( local.C, local.D, local.A, local.B, 15, 14, 0xD8A1E681 );
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P( local.B, local.C, local.D, local.A, 4, 20, 0xE7D3FBC8 );
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P( local.A, local.B, local.C, local.D, 9, 5, 0x21E1CDE6 );
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P( local.D, local.A, local.B, local.C, 14, 9, 0xC33707D6 );
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P( local.C, local.D, local.A, local.B, 3, 14, 0xF4D50D87 );
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P( local.B, local.C, local.D, local.A, 8, 20, 0x455A14ED );
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P( local.A, local.B, local.C, local.D, 13, 5, 0xA9E3E905 );
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P( local.D, local.A, local.B, local.C, 2, 9, 0xFCEFA3F8 );
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P( local.C, local.D, local.A, local.B, 7, 14, 0x676F02D9 );
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P( local.B, local.C, local.D, local.A, 12, 20, 0x8D2A4C8A );
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#undef F
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#define F(x,y,z) ((x) ^ (y) ^ (z))
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P( local.A, local.B, local.C, local.D, 5, 4, 0xFFFA3942 );
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P( local.D, local.A, local.B, local.C, 8, 11, 0x8771F681 );
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P( local.C, local.D, local.A, local.B, 11, 16, 0x6D9D6122 );
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P( local.B, local.C, local.D, local.A, 14, 23, 0xFDE5380C );
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P( local.A, local.B, local.C, local.D, 1, 4, 0xA4BEEA44 );
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P( local.D, local.A, local.B, local.C, 4, 11, 0x4BDECFA9 );
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P( local.C, local.D, local.A, local.B, 7, 16, 0xF6BB4B60 );
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P( local.B, local.C, local.D, local.A, 10, 23, 0xBEBFBC70 );
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P( local.A, local.B, local.C, local.D, 13, 4, 0x289B7EC6 );
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P( local.D, local.A, local.B, local.C, 0, 11, 0xEAA127FA );
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P( local.C, local.D, local.A, local.B, 3, 16, 0xD4EF3085 );
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P( local.B, local.C, local.D, local.A, 6, 23, 0x04881D05 );
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P( local.A, local.B, local.C, local.D, 9, 4, 0xD9D4D039 );
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P( local.D, local.A, local.B, local.C, 12, 11, 0xE6DB99E5 );
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P( local.C, local.D, local.A, local.B, 15, 16, 0x1FA27CF8 );
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P( local.B, local.C, local.D, local.A, 2, 23, 0xC4AC5665 );
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#undef F
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#define F(x,y,z) ((y) ^ ((x) | ~(z)))
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P( local.A, local.B, local.C, local.D, 0, 6, 0xF4292244 );
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P( local.D, local.A, local.B, local.C, 7, 10, 0x432AFF97 );
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P( local.C, local.D, local.A, local.B, 14, 15, 0xAB9423A7 );
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P( local.B, local.C, local.D, local.A, 5, 21, 0xFC93A039 );
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P( local.A, local.B, local.C, local.D, 12, 6, 0x655B59C3 );
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P( local.D, local.A, local.B, local.C, 3, 10, 0x8F0CCC92 );
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P( local.C, local.D, local.A, local.B, 10, 15, 0xFFEFF47D );
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P( local.B, local.C, local.D, local.A, 1, 21, 0x85845DD1 );
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P( local.A, local.B, local.C, local.D, 8, 6, 0x6FA87E4F );
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P( local.D, local.A, local.B, local.C, 15, 10, 0xFE2CE6E0 );
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P( local.C, local.D, local.A, local.B, 6, 15, 0xA3014314 );
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P( local.B, local.C, local.D, local.A, 13, 21, 0x4E0811A1 );
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P( local.A, local.B, local.C, local.D, 4, 6, 0xF7537E82 );
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P( local.D, local.A, local.B, local.C, 11, 10, 0xBD3AF235 );
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P( local.C, local.D, local.A, local.B, 2, 15, 0x2AD7D2BB );
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P( local.B, local.C, local.D, local.A, 9, 21, 0xEB86D391 );
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#undef F
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ctx->state[0] += local.A;
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ctx->state[1] += local.B;
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ctx->state[2] += local.C;
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ctx->state[3] += local.D;
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/* Zeroise variables to clear sensitive data from memory. */
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mbedtls_platform_zeroize( &local, sizeof( local ) );
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return( 0 );
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md5_process( mbedtls_md5_context *ctx,
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const unsigned char data[64] )
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{
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mbedtls_internal_md5_process( ctx, data );
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}
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#endif
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#endif /* !MBEDTLS_MD5_PROCESS_ALT */
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/*
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* MD5 process buffer
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*/
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int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
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const unsigned char *input,
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size_t ilen )
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{
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int ret;
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size_t fill;
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uint32_t left;
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if( ilen == 0 )
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return( 0 );
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left = ctx->total[0] & 0x3F;
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fill = 64 - left;
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ctx->total[0] += (uint32_t) ilen;
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ctx->total[0] &= 0xFFFFFFFF;
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if( ctx->total[0] < (uint32_t) ilen )
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ctx->total[1]++;
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if( left && ilen >= fill )
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{
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memcpy( (void *) (ctx->buffer + left), input, fill );
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if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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return( ret );
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input += fill;
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ilen -= fill;
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left = 0;
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}
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while( ilen >= 64 )
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{
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if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
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return( ret );
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input += 64;
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ilen -= 64;
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}
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if( ilen > 0 )
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{
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memcpy( (void *) (ctx->buffer + left), input, ilen );
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}
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return( 0 );
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md5_update( mbedtls_md5_context *ctx,
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const unsigned char *input,
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size_t ilen )
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{
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mbedtls_md5_update_ret( ctx, input, ilen );
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}
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#endif
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/*
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* MD5 final digest
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*/
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int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
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unsigned char output[16] )
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{
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int ret;
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uint32_t used;
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uint32_t high, low;
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/*
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* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
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*/
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used = ctx->total[0] & 0x3F;
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ctx->buffer[used++] = 0x80;
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if( used <= 56 )
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{
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/* Enough room for padding + length in current block */
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memset( ctx->buffer + used, 0, 56 - used );
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}
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else
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{
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/* We'll need an extra block */
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memset( ctx->buffer + used, 0, 64 - used );
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if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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return( ret );
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memset( ctx->buffer, 0, 56 );
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}
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/*
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* Add message length
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*/
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high = ( ctx->total[0] >> 29 )
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| ( ctx->total[1] << 3 );
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low = ( ctx->total[0] << 3 );
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PUT_UINT32_LE( low, ctx->buffer, 56 );
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PUT_UINT32_LE( high, ctx->buffer, 60 );
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if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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return( ret );
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/*
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* Output final state
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*/
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PUT_UINT32_LE( ctx->state[0], output, 0 );
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PUT_UINT32_LE( ctx->state[1], output, 4 );
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PUT_UINT32_LE( ctx->state[2], output, 8 );
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PUT_UINT32_LE( ctx->state[3], output, 12 );
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return( 0 );
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}
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#if !defined(MBEDTLS_DEPRECATED_REMOVED)
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void mbedtls_md5_finish( mbedtls_md5_context *ctx,
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unsigned char output[16] )
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{
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mbedtls_md5_finish_ret( ctx, output );
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}
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#endif
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#endif /* !MBEDTLS_MD5_ALT */
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/*
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* output = MD5( input buffer )
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*/
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int mbedtls_md5_ret( const unsigned char *input,
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size_t ilen,
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unsigned char output[16] )
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{
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int ret;
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mbedtls_md5_context ctx;
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mbedtls_md5_init( &ctx );
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if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
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goto exit;
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if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
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goto exit;
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if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
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goto exit;
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exit:
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mbedtls_md5_free( &ctx );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
|
void mbedtls_md5( const unsigned char *input,
|
|
size_t ilen,
|
|
unsigned char output[16] )
|
|
{
|
|
mbedtls_md5_ret( input, ilen, output );
|
|
}
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_SELF_TEST)
|
|
/*
|
|
* RFC 1321 test vectors
|
|
*/
|
|
static const unsigned char md5_test_buf[7][81] =
|
|
{
|
|
{ "" },
|
|
{ "a" },
|
|
{ "abc" },
|
|
{ "message digest" },
|
|
{ "abcdefghijklmnopqrstuvwxyz" },
|
|
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
|
|
{ "12345678901234567890123456789012345678901234567890123456789012"
|
|
"345678901234567890" }
|
|
};
|
|
|
|
static const size_t md5_test_buflen[7] =
|
|
{
|
|
0, 1, 3, 14, 26, 62, 80
|
|
};
|
|
|
|
static const unsigned char md5_test_sum[7][16] =
|
|
{
|
|
{ 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
|
|
0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
|
|
{ 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
|
|
0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
|
|
{ 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
|
|
0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
|
|
{ 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
|
|
0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
|
|
{ 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
|
|
0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
|
|
{ 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
|
|
0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
|
|
{ 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
|
|
0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
|
|
};
|
|
|
|
/*
|
|
* Checkup routine
|
|
*/
|
|
int mbedtls_md5_self_test( int verbose )
|
|
{
|
|
int i, ret = 0;
|
|
unsigned char md5sum[16];
|
|
|
|
for( i = 0; i < 7; i++ )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " MD5 test #%d: ", i + 1 );
|
|
|
|
ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
|
|
if( ret != 0 )
|
|
goto fail;
|
|
|
|
if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
|
|
{
|
|
ret = 1;
|
|
goto fail;
|
|
}
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "passed\n" );
|
|
}
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "\n" );
|
|
|
|
return( 0 );
|
|
|
|
fail:
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "failed\n" );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
#endif /* MBEDTLS_SELF_TEST */
|
|
|
|
#endif /* MBEDTLS_MD5_C */
|