[398] | 1 | /*
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| 2 | * RFC 1321 compliant MD5 implementation
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| 3 | *
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| 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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| 5 | * SPDX-License-Identifier: Apache-2.0
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| 6 | *
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| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may
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| 8 | * not use this file except in compliance with the License.
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| 9 | * You may obtain a copy of the License at
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| 10 | *
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0
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| 12 | *
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| 13 | * Unless required by applicable law or agreed to in writing, software
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 16 | * See the License for the specific language governing permissions and
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| 17 | * limitations under the License.
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| 18 | *
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| 19 | * This file is part of mbed TLS (https://tls.mbed.org)
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| 20 | */
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| 21 | /*
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| 22 | * The MD5 algorithm was designed by Ron Rivest in 1991.
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| 23 | *
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| 24 | * http://www.ietf.org/rfc/rfc1321.txt
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| 25 | */
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| 26 |
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| 27 | #if !defined(MBEDTLS_CONFIG_FILE)
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| 28 | #include "mbedtls/config.h"
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| 29 | #else
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| 30 | #include MBEDTLS_CONFIG_FILE
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| 31 | #endif
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| 32 |
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| 33 | #if defined(MBEDTLS_MD5_C)
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| 34 |
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| 35 | #include "mbedtls/md5.h"
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| 36 | #include "mbedtls/platform_util.h"
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| 37 |
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| 38 | #include <string.h>
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| 39 |
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| 40 | #if defined(MBEDTLS_SELF_TEST)
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| 41 | #if defined(MBEDTLS_PLATFORM_C)
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| 42 | #include "mbedtls/platform.h"
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| 43 | #else
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| 44 | #include <stdio.h>
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| 45 | #define mbedtls_printf printf
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| 46 | #endif /* MBEDTLS_PLATFORM_C */
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| 47 | #endif /* MBEDTLS_SELF_TEST */
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| 48 |
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| 49 | #if !defined(MBEDTLS_MD5_ALT)
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| 50 |
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| 51 | /*
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| 52 | * 32-bit integer manipulation macros (little endian)
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| 53 | */
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| 54 | #ifndef GET_UINT32_LE
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| 55 | #define GET_UINT32_LE(n,b,i) \
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| 56 | { \
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| 57 | (n) = ( (uint32_t) (b)[(i) ] ) \
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| 58 | | ( (uint32_t) (b)[(i) + 1] << 8 ) \
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| 59 | | ( (uint32_t) (b)[(i) + 2] << 16 ) \
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| 60 | | ( (uint32_t) (b)[(i) + 3] << 24 ); \
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| 61 | }
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| 62 | #endif
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| 63 |
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| 64 | #ifndef PUT_UINT32_LE
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| 65 | #define PUT_UINT32_LE(n,b,i) \
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| 66 | { \
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| 67 | (b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
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| 68 | (b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
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| 69 | (b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
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| 70 | (b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
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| 71 | }
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| 72 | #endif
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| 73 |
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| 74 | void mbedtls_md5_init( mbedtls_md5_context *ctx )
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| 75 | {
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| 76 | memset( ctx, 0, sizeof( mbedtls_md5_context ) );
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| 77 | }
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| 78 |
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| 79 | void mbedtls_md5_free( mbedtls_md5_context *ctx )
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| 80 | {
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| 81 | if( ctx == NULL )
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| 82 | return;
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| 83 |
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| 84 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) );
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| 85 | }
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| 86 |
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| 87 | void mbedtls_md5_clone( mbedtls_md5_context *dst,
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| 88 | const mbedtls_md5_context *src )
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| 89 | {
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| 90 | *dst = *src;
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| 91 | }
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| 92 |
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| 93 | /*
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| 94 | * MD5 context setup
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| 95 | */
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| 96 | int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
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| 97 | {
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| 98 | ctx->total[0] = 0;
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| 99 | ctx->total[1] = 0;
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| 100 |
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| 101 | ctx->state[0] = 0x67452301;
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| 102 | ctx->state[1] = 0xEFCDAB89;
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| 103 | ctx->state[2] = 0x98BADCFE;
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| 104 | ctx->state[3] = 0x10325476;
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| 105 |
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| 106 | return( 0 );
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| 107 | }
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| 108 |
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| 109 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 110 | void mbedtls_md5_starts( mbedtls_md5_context *ctx )
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| 111 | {
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| 112 | mbedtls_md5_starts_ret( ctx );
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| 113 | }
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| 114 | #endif
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| 115 |
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| 116 | #if !defined(MBEDTLS_MD5_PROCESS_ALT)
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| 117 | int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
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| 118 | const unsigned char data[64] )
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| 119 | {
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| 120 | uint32_t X[16], A, B, C, D;
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| 121 |
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| 122 | GET_UINT32_LE( X[ 0], data, 0 );
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| 123 | GET_UINT32_LE( X[ 1], data, 4 );
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| 124 | GET_UINT32_LE( X[ 2], data, 8 );
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| 125 | GET_UINT32_LE( X[ 3], data, 12 );
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| 126 | GET_UINT32_LE( X[ 4], data, 16 );
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| 127 | GET_UINT32_LE( X[ 5], data, 20 );
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| 128 | GET_UINT32_LE( X[ 6], data, 24 );
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| 129 | GET_UINT32_LE( X[ 7], data, 28 );
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| 130 | GET_UINT32_LE( X[ 8], data, 32 );
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| 131 | GET_UINT32_LE( X[ 9], data, 36 );
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| 132 | GET_UINT32_LE( X[10], data, 40 );
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| 133 | GET_UINT32_LE( X[11], data, 44 );
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| 134 | GET_UINT32_LE( X[12], data, 48 );
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| 135 | GET_UINT32_LE( X[13], data, 52 );
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| 136 | GET_UINT32_LE( X[14], data, 56 );
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| 137 | GET_UINT32_LE( X[15], data, 60 );
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| 138 |
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| 139 | #define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
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| 140 |
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| 141 | #define P(a,b,c,d,k,s,t) \
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| 142 | { \
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| 143 | a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
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| 144 | }
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| 145 |
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| 146 | A = ctx->state[0];
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| 147 | B = ctx->state[1];
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| 148 | C = ctx->state[2];
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| 149 | D = ctx->state[3];
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| 150 |
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| 151 | #define F(x,y,z) (z ^ (x & (y ^ z)))
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| 152 |
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| 153 | P( A, B, C, D, 0, 7, 0xD76AA478 );
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| 154 | P( D, A, B, C, 1, 12, 0xE8C7B756 );
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| 155 | P( C, D, A, B, 2, 17, 0x242070DB );
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| 156 | P( B, C, D, A, 3, 22, 0xC1BDCEEE );
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| 157 | P( A, B, C, D, 4, 7, 0xF57C0FAF );
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| 158 | P( D, A, B, C, 5, 12, 0x4787C62A );
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| 159 | P( C, D, A, B, 6, 17, 0xA8304613 );
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| 160 | P( B, C, D, A, 7, 22, 0xFD469501 );
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| 161 | P( A, B, C, D, 8, 7, 0x698098D8 );
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| 162 | P( D, A, B, C, 9, 12, 0x8B44F7AF );
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| 163 | P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
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| 164 | P( B, C, D, A, 11, 22, 0x895CD7BE );
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| 165 | P( A, B, C, D, 12, 7, 0x6B901122 );
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| 166 | P( D, A, B, C, 13, 12, 0xFD987193 );
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| 167 | P( C, D, A, B, 14, 17, 0xA679438E );
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| 168 | P( B, C, D, A, 15, 22, 0x49B40821 );
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| 169 |
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| 170 | #undef F
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| 171 |
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| 172 | #define F(x,y,z) (y ^ (z & (x ^ y)))
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| 173 |
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| 174 | P( A, B, C, D, 1, 5, 0xF61E2562 );
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| 175 | P( D, A, B, C, 6, 9, 0xC040B340 );
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| 176 | P( C, D, A, B, 11, 14, 0x265E5A51 );
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| 177 | P( B, C, D, A, 0, 20, 0xE9B6C7AA );
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| 178 | P( A, B, C, D, 5, 5, 0xD62F105D );
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| 179 | P( D, A, B, C, 10, 9, 0x02441453 );
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| 180 | P( C, D, A, B, 15, 14, 0xD8A1E681 );
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| 181 | P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
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| 182 | P( A, B, C, D, 9, 5, 0x21E1CDE6 );
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| 183 | P( D, A, B, C, 14, 9, 0xC33707D6 );
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| 184 | P( C, D, A, B, 3, 14, 0xF4D50D87 );
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| 185 | P( B, C, D, A, 8, 20, 0x455A14ED );
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| 186 | P( A, B, C, D, 13, 5, 0xA9E3E905 );
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| 187 | P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
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| 188 | P( C, D, A, B, 7, 14, 0x676F02D9 );
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| 189 | P( B, C, D, A, 12, 20, 0x8D2A4C8A );
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| 190 |
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| 191 | #undef F
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| 192 |
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| 193 | #define F(x,y,z) (x ^ y ^ z)
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| 194 |
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| 195 | P( A, B, C, D, 5, 4, 0xFFFA3942 );
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| 196 | P( D, A, B, C, 8, 11, 0x8771F681 );
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| 197 | P( C, D, A, B, 11, 16, 0x6D9D6122 );
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| 198 | P( B, C, D, A, 14, 23, 0xFDE5380C );
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| 199 | P( A, B, C, D, 1, 4, 0xA4BEEA44 );
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| 200 | P( D, A, B, C, 4, 11, 0x4BDECFA9 );
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| 201 | P( C, D, A, B, 7, 16, 0xF6BB4B60 );
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| 202 | P( B, C, D, A, 10, 23, 0xBEBFBC70 );
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| 203 | P( A, B, C, D, 13, 4, 0x289B7EC6 );
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| 204 | P( D, A, B, C, 0, 11, 0xEAA127FA );
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| 205 | P( C, D, A, B, 3, 16, 0xD4EF3085 );
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| 206 | P( B, C, D, A, 6, 23, 0x04881D05 );
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| 207 | P( A, B, C, D, 9, 4, 0xD9D4D039 );
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| 208 | P( D, A, B, C, 12, 11, 0xE6DB99E5 );
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| 209 | P( C, D, A, B, 15, 16, 0x1FA27CF8 );
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| 210 | P( B, C, D, A, 2, 23, 0xC4AC5665 );
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| 211 |
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| 212 | #undef F
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| 213 |
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| 214 | #define F(x,y,z) (y ^ (x | ~z))
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| 215 |
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| 216 | P( A, B, C, D, 0, 6, 0xF4292244 );
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| 217 | P( D, A, B, C, 7, 10, 0x432AFF97 );
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| 218 | P( C, D, A, B, 14, 15, 0xAB9423A7 );
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| 219 | P( B, C, D, A, 5, 21, 0xFC93A039 );
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| 220 | P( A, B, C, D, 12, 6, 0x655B59C3 );
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| 221 | P( D, A, B, C, 3, 10, 0x8F0CCC92 );
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| 222 | P( C, D, A, B, 10, 15, 0xFFEFF47D );
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| 223 | P( B, C, D, A, 1, 21, 0x85845DD1 );
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| 224 | P( A, B, C, D, 8, 6, 0x6FA87E4F );
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| 225 | P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
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| 226 | P( C, D, A, B, 6, 15, 0xA3014314 );
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| 227 | P( B, C, D, A, 13, 21, 0x4E0811A1 );
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| 228 | P( A, B, C, D, 4, 6, 0xF7537E82 );
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| 229 | P( D, A, B, C, 11, 10, 0xBD3AF235 );
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| 230 | P( C, D, A, B, 2, 15, 0x2AD7D2BB );
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| 231 | P( B, C, D, A, 9, 21, 0xEB86D391 );
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| 232 |
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| 233 | #undef F
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| 234 |
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| 235 | ctx->state[0] += A;
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| 236 | ctx->state[1] += B;
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| 237 | ctx->state[2] += C;
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| 238 | ctx->state[3] += D;
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| 239 |
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| 240 | return( 0 );
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| 241 | }
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| 242 |
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| 243 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 244 | void mbedtls_md5_process( mbedtls_md5_context *ctx,
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| 245 | const unsigned char data[64] )
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| 246 | {
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| 247 | mbedtls_internal_md5_process( ctx, data );
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| 248 | }
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| 249 | #endif
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| 250 | #endif /* !MBEDTLS_MD5_PROCESS_ALT */
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| 251 |
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| 252 | /*
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| 253 | * MD5 process buffer
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| 254 | */
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| 255 | int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
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| 256 | const unsigned char *input,
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| 257 | size_t ilen )
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| 258 | {
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| 259 | int ret;
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| 260 | size_t fill;
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| 261 | uint32_t left;
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| 262 |
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| 263 | if( ilen == 0 )
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| 264 | return( 0 );
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| 265 |
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| 266 | left = ctx->total[0] & 0x3F;
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| 267 | fill = 64 - left;
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| 268 |
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| 269 | ctx->total[0] += (uint32_t) ilen;
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| 270 | ctx->total[0] &= 0xFFFFFFFF;
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| 271 |
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| 272 | if( ctx->total[0] < (uint32_t) ilen )
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| 273 | ctx->total[1]++;
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| 274 |
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| 275 | if( left && ilen >= fill )
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| 276 | {
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| 277 | memcpy( (void *) (ctx->buffer + left), input, fill );
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| 278 | if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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| 279 | return( ret );
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| 280 |
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| 281 | input += fill;
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| 282 | ilen -= fill;
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| 283 | left = 0;
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| 284 | }
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| 285 |
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| 286 | while( ilen >= 64 )
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| 287 | {
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| 288 | if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
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| 289 | return( ret );
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| 290 |
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| 291 | input += 64;
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| 292 | ilen -= 64;
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| 293 | }
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| 294 |
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| 295 | if( ilen > 0 )
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| 296 | {
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| 297 | memcpy( (void *) (ctx->buffer + left), input, ilen );
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| 298 | }
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| 299 |
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| 300 | return( 0 );
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| 301 | }
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| 302 |
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| 303 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 304 | void mbedtls_md5_update( mbedtls_md5_context *ctx,
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| 305 | const unsigned char *input,
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| 306 | size_t ilen )
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| 307 | {
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| 308 | mbedtls_md5_update_ret( ctx, input, ilen );
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| 309 | }
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| 310 | #endif
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| 311 |
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| 312 | /*
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| 313 | * MD5 final digest
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| 314 | */
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| 315 | int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
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| 316 | unsigned char output[16] )
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| 317 | {
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| 318 | int ret;
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| 319 | uint32_t used;
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| 320 | uint32_t high, low;
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| 321 |
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| 322 | /*
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| 323 | * Add padding: 0x80 then 0x00 until 8 bytes remain for the length
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| 324 | */
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| 325 | used = ctx->total[0] & 0x3F;
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| 326 |
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| 327 | ctx->buffer[used++] = 0x80;
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| 328 |
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| 329 | if( used <= 56 )
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| 330 | {
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| 331 | /* Enough room for padding + length in current block */
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| 332 | memset( ctx->buffer + used, 0, 56 - used );
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| 333 | }
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| 334 | else
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| 335 | {
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| 336 | /* We'll need an extra block */
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| 337 | memset( ctx->buffer + used, 0, 64 - used );
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| 338 |
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| 339 | if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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| 340 | return( ret );
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| 341 |
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| 342 | memset( ctx->buffer, 0, 56 );
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| 343 | }
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| 344 |
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| 345 | /*
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| 346 | * Add message length
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| 347 | */
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| 348 | high = ( ctx->total[0] >> 29 )
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| 349 | | ( ctx->total[1] << 3 );
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| 350 | low = ( ctx->total[0] << 3 );
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| 351 |
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| 352 | PUT_UINT32_LE( low, ctx->buffer, 56 );
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| 353 | PUT_UINT32_LE( high, ctx->buffer, 60 );
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| 354 |
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| 355 | if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
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| 356 | return( ret );
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| 357 |
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| 358 | /*
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| 359 | * Output final state
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| 360 | */
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| 361 | PUT_UINT32_LE( ctx->state[0], output, 0 );
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| 362 | PUT_UINT32_LE( ctx->state[1], output, 4 );
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| 363 | PUT_UINT32_LE( ctx->state[2], output, 8 );
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| 364 | PUT_UINT32_LE( ctx->state[3], output, 12 );
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| 365 |
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| 366 | return( 0 );
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| 367 | }
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| 368 |
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| 369 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
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| 370 | void mbedtls_md5_finish( mbedtls_md5_context *ctx,
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| 371 | unsigned char output[16] )
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| 372 | {
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| 373 | mbedtls_md5_finish_ret( ctx, output );
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| 374 | }
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| 375 | #endif
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| 376 |
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| 377 | #endif /* !MBEDTLS_MD5_ALT */
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| 378 |
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| 379 | /*
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| 380 | * output = MD5( input buffer )
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| 381 | */
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| 382 | int mbedtls_md5_ret( const unsigned char *input,
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| 383 | size_t ilen,
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| 384 | unsigned char output[16] )
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| 385 | {
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| 386 | int ret;
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| 387 | mbedtls_md5_context ctx;
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| 388 |
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| 389 | mbedtls_md5_init( &ctx );
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| 390 |
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| 391 | if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
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| 392 | goto exit;
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---|
| 393 |
|
---|
| 394 | if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
|
---|
| 395 | goto exit;
|
---|
| 396 |
|
---|
| 397 | if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
|
---|
| 398 | goto exit;
|
---|
| 399 |
|
---|
| 400 | exit:
|
---|
| 401 | mbedtls_md5_free( &ctx );
|
---|
| 402 |
|
---|
| 403 | return( ret );
|
---|
| 404 | }
|
---|
| 405 |
|
---|
| 406 | #if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
---|
| 407 | void mbedtls_md5( const unsigned char *input,
|
---|
| 408 | size_t ilen,
|
---|
| 409 | unsigned char output[16] )
|
---|
| 410 | {
|
---|
| 411 | mbedtls_md5_ret( input, ilen, output );
|
---|
| 412 | }
|
---|
| 413 | #endif
|
---|
| 414 |
|
---|
| 415 | #if defined(MBEDTLS_SELF_TEST)
|
---|
| 416 | /*
|
---|
| 417 | * RFC 1321 test vectors
|
---|
| 418 | */
|
---|
| 419 | static const unsigned char md5_test_buf[7][81] =
|
---|
| 420 | {
|
---|
| 421 | { "" },
|
---|
| 422 | { "a" },
|
---|
| 423 | { "abc" },
|
---|
| 424 | { "message digest" },
|
---|
| 425 | { "abcdefghijklmnopqrstuvwxyz" },
|
---|
| 426 | { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
|
---|
| 427 | { "12345678901234567890123456789012345678901234567890123456789012"
|
---|
| 428 | "345678901234567890" }
|
---|
| 429 | };
|
---|
| 430 |
|
---|
| 431 | static const size_t md5_test_buflen[7] =
|
---|
| 432 | {
|
---|
| 433 | 0, 1, 3, 14, 26, 62, 80
|
---|
| 434 | };
|
---|
| 435 |
|
---|
| 436 | static const unsigned char md5_test_sum[7][16] =
|
---|
| 437 | {
|
---|
| 438 | { 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
|
---|
| 439 | 0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
|
---|
| 440 | { 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
|
---|
| 441 | 0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
|
---|
| 442 | { 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
|
---|
| 443 | 0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
|
---|
| 444 | { 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
|
---|
| 445 | 0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
|
---|
| 446 | { 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
|
---|
| 447 | 0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
|
---|
| 448 | { 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
|
---|
| 449 | 0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
|
---|
| 450 | { 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
|
---|
| 451 | 0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
|
---|
| 452 | };
|
---|
| 453 |
|
---|
| 454 | /*
|
---|
| 455 | * Checkup routine
|
---|
| 456 | */
|
---|
| 457 | int mbedtls_md5_self_test( int verbose )
|
---|
| 458 | {
|
---|
| 459 | int i, ret = 0;
|
---|
| 460 | unsigned char md5sum[16];
|
---|
| 461 |
|
---|
| 462 | for( i = 0; i < 7; i++ )
|
---|
| 463 | {
|
---|
| 464 | if( verbose != 0 )
|
---|
| 465 | mbedtls_printf( " MD5 test #%d: ", i + 1 );
|
---|
| 466 |
|
---|
| 467 | ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
|
---|
| 468 | if( ret != 0 )
|
---|
| 469 | goto fail;
|
---|
| 470 |
|
---|
| 471 | if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
|
---|
| 472 | {
|
---|
| 473 | ret = 1;
|
---|
| 474 | goto fail;
|
---|
| 475 | }
|
---|
| 476 |
|
---|
| 477 | if( verbose != 0 )
|
---|
| 478 | mbedtls_printf( "passed\n" );
|
---|
| 479 | }
|
---|
| 480 |
|
---|
| 481 | if( verbose != 0 )
|
---|
| 482 | mbedtls_printf( "\n" );
|
---|
| 483 |
|
---|
| 484 | return( 0 );
|
---|
| 485 |
|
---|
| 486 | fail:
|
---|
| 487 | if( verbose != 0 )
|
---|
| 488 | mbedtls_printf( "failed\n" );
|
---|
| 489 |
|
---|
| 490 | return( ret );
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 | #endif /* MBEDTLS_SELF_TEST */
|
---|
| 494 |
|
---|
| 495 | #endif /* MBEDTLS_MD5_C */
|
---|