1 | /***************************************************************************
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2 | * _ _ ____ _
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3 | * Project ___| | | | _ \| |
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4 | * / __| | | | |_) | |
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5 | * | (__| |_| | _ <| |___
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6 | * \___|\___/|_| \_\_____|
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7 | *
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8 | * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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9 | *
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10 | * This software is licensed as described in the file COPYING, which
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11 | * you should have received as part of this distribution. The terms
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12 | * are also available at https://curl.se/docs/copyright.html.
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13 | *
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14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 | * copies of the Software, and permit persons to whom the Software is
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16 | * furnished to do so, under the terms of the COPYING file.
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17 | *
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18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 | * KIND, either express or implied.
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20 | *
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21 | * SPDX-License-Identifier: curl
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22 | *
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23 | ***************************************************************************/
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24 |
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25 | #include "curl_setup.h"
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26 |
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27 | #if defined(USE_CURL_NTLM_CORE)
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28 |
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29 | #include <string.h>
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30 |
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31 | #include "strdup.h"
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32 | #include "curl_md4.h"
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33 | #include "warnless.h"
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34 |
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35 | #ifdef USE_OPENSSL
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36 | #include <openssl/opensslv.h>
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37 | #if (OPENSSL_VERSION_NUMBER >= 0x30000000L) && !defined(USE_AMISSL)
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38 | /* OpenSSL 3.0.0 marks the MD4 functions as deprecated */
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39 | #define OPENSSL_NO_MD4
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40 | #endif
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41 | #endif /* USE_OPENSSL */
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42 |
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43 | #ifdef USE_WOLFSSL
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44 | #include <wolfssl/options.h>
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45 | #define VOID_MD4_INIT
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46 | #ifdef NO_MD4
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47 | #define WOLFSSL_NO_MD4
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48 | #endif
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49 | #endif
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50 |
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51 | #ifdef USE_MBEDTLS
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52 | #include <mbedtls/version.h>
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53 | #if MBEDTLS_VERSION_NUMBER >= 0x03000000
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54 | #include <mbedtls/mbedtls_config.h>
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55 | #else
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56 | #include <mbedtls/config.h>
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57 | #endif
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58 | #if(MBEDTLS_VERSION_NUMBER >= 0x02070000)
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59 | #define HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS
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60 | #endif
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61 | #endif /* USE_MBEDTLS */
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62 |
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63 | #if defined(USE_GNUTLS)
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64 | #include <nettle/md4.h>
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65 | /* When OpenSSL or wolfSSL is available, we use their MD4 functions. */
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66 | #elif defined(USE_WOLFSSL) && !defined(WOLFSSL_NO_MD4)
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67 | #include <wolfssl/openssl/md4.h>
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68 | #elif defined(USE_OPENSSL) && !defined(OPENSSL_NO_MD4)
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69 | #include <openssl/md4.h>
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70 | #elif (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && \
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71 | (__MAC_OS_X_VERSION_MAX_ALLOWED >= 1040) && \
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72 | defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
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73 | (__MAC_OS_X_VERSION_MIN_REQUIRED < 101500)) || \
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74 | (defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && \
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75 | (__IPHONE_OS_VERSION_MAX_ALLOWED >= 20000) && \
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76 | defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && \
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77 | (__IPHONE_OS_VERSION_MIN_REQUIRED < 130000))
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78 | #define AN_APPLE_OS
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79 | #include <CommonCrypto/CommonDigest.h>
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80 | #elif defined(USE_WIN32_CRYPTO)
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81 | #include <wincrypt.h>
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82 | #elif(defined(USE_MBEDTLS) && defined(MBEDTLS_MD4_C))
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83 | #include <mbedtls/md4.h>
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84 | #endif
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85 |
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86 | /* The last 3 #include files should be in this order */
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87 | #include "curl_printf.h"
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88 | #include "curl_memory.h"
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89 | #include "memdebug.h"
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90 |
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91 |
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92 | #if defined(USE_GNUTLS)
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93 |
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94 | typedef struct md4_ctx MD4_CTX;
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95 |
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96 | static int MD4_Init(MD4_CTX *ctx)
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97 | {
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98 | md4_init(ctx);
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99 | return 1;
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100 | }
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101 |
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102 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
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103 | {
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104 | md4_update(ctx, size, data);
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105 | }
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106 |
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107 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
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108 | {
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109 | md4_digest(ctx, MD4_DIGEST_SIZE, result);
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110 | }
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111 |
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112 | #elif defined(USE_WOLFSSL) && !defined(WOLFSSL_NO_MD4)
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113 |
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114 | #elif defined(USE_OPENSSL) && !defined(OPENSSL_NO_MD4)
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115 |
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116 | #elif defined(AN_APPLE_OS)
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117 | typedef CC_MD4_CTX MD4_CTX;
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118 |
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119 | static int MD4_Init(MD4_CTX *ctx)
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120 | {
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121 | return CC_MD4_Init(ctx);
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122 | }
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123 |
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124 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
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125 | {
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126 | (void)CC_MD4_Update(ctx, data, (CC_LONG)size);
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127 | }
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128 |
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129 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
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130 | {
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131 | (void)CC_MD4_Final(result, ctx);
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132 | }
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133 |
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134 | #elif defined(USE_WIN32_CRYPTO)
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135 |
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136 | struct md4_ctx {
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137 | HCRYPTPROV hCryptProv;
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138 | HCRYPTHASH hHash;
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139 | };
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140 | typedef struct md4_ctx MD4_CTX;
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141 |
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142 | static int MD4_Init(MD4_CTX *ctx)
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143 | {
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144 | ctx->hCryptProv = 0;
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145 | ctx->hHash = 0;
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146 |
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147 | if(!CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
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148 | CRYPT_VERIFYCONTEXT | CRYPT_SILENT))
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149 | return 0;
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150 |
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151 | if(!CryptCreateHash(ctx->hCryptProv, CALG_MD4, 0, 0, &ctx->hHash)) {
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152 | CryptReleaseContext(ctx->hCryptProv, 0);
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153 | ctx->hCryptProv = 0;
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154 | return 0;
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155 | }
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156 |
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157 | return 1;
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158 | }
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159 |
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160 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
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161 | {
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162 | CryptHashData(ctx->hHash, (BYTE *)data, (unsigned int) size, 0);
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163 | }
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164 |
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165 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
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166 | {
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167 | unsigned long length = 0;
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168 |
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169 | CryptGetHashParam(ctx->hHash, HP_HASHVAL, NULL, &length, 0);
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170 | if(length == MD4_DIGEST_LENGTH)
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171 | CryptGetHashParam(ctx->hHash, HP_HASHVAL, result, &length, 0);
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172 |
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173 | if(ctx->hHash)
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174 | CryptDestroyHash(ctx->hHash);
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175 |
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176 | if(ctx->hCryptProv)
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177 | CryptReleaseContext(ctx->hCryptProv, 0);
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178 | }
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179 |
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180 | #elif(defined(USE_MBEDTLS) && defined(MBEDTLS_MD4_C))
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181 |
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182 | struct md4_ctx {
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183 | void *data;
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184 | unsigned long size;
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185 | };
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186 | typedef struct md4_ctx MD4_CTX;
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187 |
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188 | static int MD4_Init(MD4_CTX *ctx)
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189 | {
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190 | ctx->data = NULL;
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191 | ctx->size = 0;
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192 | return 1;
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193 | }
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194 |
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195 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
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196 | {
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197 | if(!ctx->data) {
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198 | ctx->data = Curl_memdup(data, size);
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199 | if(ctx->data)
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200 | ctx->size = size;
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201 | }
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202 | }
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203 |
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204 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
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205 | {
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206 | if(ctx->data) {
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207 | #if !defined(HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS)
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208 | mbedtls_md4(ctx->data, ctx->size, result);
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209 | #else
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210 | (void) mbedtls_md4_ret(ctx->data, ctx->size, result);
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211 | #endif
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212 |
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213 | Curl_safefree(ctx->data);
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214 | ctx->size = 0;
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215 | }
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216 | }
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217 |
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218 | #else
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219 | /* When no other crypto library is available, or the crypto library doesn't
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220 | * support MD4, we use this code segment this implementation of it
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221 | *
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222 | * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
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223 | * MD4 Message-Digest Algorithm (RFC 1320).
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224 | *
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225 | * Homepage:
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226 | https://openwall.info/wiki/people/solar/software/public-domain-source-code/md4
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227 | *
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228 | * Author:
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229 | * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
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230 | *
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231 | * This software was written by Alexander Peslyak in 2001. No copyright is
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232 | * claimed, and the software is hereby placed in the public domain. In case
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233 | * this attempt to disclaim copyright and place the software in the public
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234 | * domain is deemed null and void, then the software is Copyright (c) 2001
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235 | * Alexander Peslyak and it is hereby released to the general public under the
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236 | * following terms:
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237 | *
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238 | * Redistribution and use in source and binary forms, with or without
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239 | * modification, are permitted.
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240 | *
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241 | * There's ABSOLUTELY NO WARRANTY, express or implied.
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242 | *
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243 | * (This is a heavily cut-down "BSD license".)
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244 | *
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245 | * This differs from Colin Plumb's older public domain implementation in that
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246 | * no exactly 32-bit integer data type is required (any 32-bit or wider
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247 | * unsigned integer data type will do), there's no compile-time endianness
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248 | * configuration, and the function prototypes match OpenSSL's. No code from
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249 | * Colin Plumb's implementation has been reused; this comment merely compares
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250 | * the properties of the two independent implementations.
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251 | *
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252 | * The primary goals of this implementation are portability and ease of use.
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253 | * It is meant to be fast, but not as fast as possible. Some known
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254 | * optimizations are not included to reduce source code size and avoid
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255 | * compile-time configuration.
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256 | */
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257 |
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258 | /* Any 32-bit or wider unsigned integer data type will do */
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259 | typedef unsigned int MD4_u32plus;
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260 |
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261 | struct md4_ctx {
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262 | MD4_u32plus lo, hi;
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263 | MD4_u32plus a, b, c, d;
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264 | unsigned char buffer[64];
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265 | MD4_u32plus block[16];
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266 | };
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267 | typedef struct md4_ctx MD4_CTX;
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268 |
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269 | static int MD4_Init(MD4_CTX *ctx);
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270 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size);
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271 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx);
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272 |
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273 | /*
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274 | * The basic MD4 functions.
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275 | *
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276 | * F and G are optimized compared to their RFC 1320 definitions, with the
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277 | * optimization for F borrowed from Colin Plumb's MD5 implementation.
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278 | */
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279 | #define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
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280 | #define G(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
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281 | #define H(x, y, z) ((x) ^ (y) ^ (z))
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282 |
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283 | /*
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284 | * The MD4 transformation for all three rounds.
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285 | */
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286 | #define STEP(f, a, b, c, d, x, s) \
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287 | (a) += f((b), (c), (d)) + (x); \
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288 | (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s))));
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289 |
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290 | /*
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291 | * SET reads 4 input bytes in little-endian byte order and stores them
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292 | * in a properly aligned word in host byte order.
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293 | *
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294 | * The check for little-endian architectures that tolerate unaligned
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295 | * memory accesses is just an optimization. Nothing will break if it
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296 | * doesn't work.
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297 | */
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298 | #if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
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299 | #define SET(n) \
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300 | (*(MD4_u32plus *)(void *)&ptr[(n) * 4])
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301 | #define GET(n) \
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302 | SET(n)
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303 | #else
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304 | #define SET(n) \
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305 | (ctx->block[(n)] = \
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306 | (MD4_u32plus)ptr[(n) * 4] | \
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307 | ((MD4_u32plus)ptr[(n) * 4 + 1] << 8) | \
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308 | ((MD4_u32plus)ptr[(n) * 4 + 2] << 16) | \
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309 | ((MD4_u32plus)ptr[(n) * 4 + 3] << 24))
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310 | #define GET(n) \
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311 | (ctx->block[(n)])
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312 | #endif
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313 |
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314 | /*
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315 | * This processes one or more 64-byte data blocks, but does NOT update
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316 | * the bit counters. There are no alignment requirements.
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317 | */
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318 | static const void *body(MD4_CTX *ctx, const void *data, unsigned long size)
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319 | {
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320 | const unsigned char *ptr;
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321 | MD4_u32plus a, b, c, d;
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322 |
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323 | ptr = (const unsigned char *)data;
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324 |
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325 | a = ctx->a;
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326 | b = ctx->b;
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327 | c = ctx->c;
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328 | d = ctx->d;
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329 |
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330 | do {
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331 | MD4_u32plus saved_a, saved_b, saved_c, saved_d;
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332 |
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333 | saved_a = a;
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334 | saved_b = b;
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335 | saved_c = c;
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336 | saved_d = d;
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337 |
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338 | /* Round 1 */
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339 | STEP(F, a, b, c, d, SET(0), 3)
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340 | STEP(F, d, a, b, c, SET(1), 7)
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341 | STEP(F, c, d, a, b, SET(2), 11)
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342 | STEP(F, b, c, d, a, SET(3), 19)
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343 | STEP(F, a, b, c, d, SET(4), 3)
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344 | STEP(F, d, a, b, c, SET(5), 7)
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345 | STEP(F, c, d, a, b, SET(6), 11)
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346 | STEP(F, b, c, d, a, SET(7), 19)
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347 | STEP(F, a, b, c, d, SET(8), 3)
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348 | STEP(F, d, a, b, c, SET(9), 7)
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349 | STEP(F, c, d, a, b, SET(10), 11)
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350 | STEP(F, b, c, d, a, SET(11), 19)
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351 | STEP(F, a, b, c, d, SET(12), 3)
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352 | STEP(F, d, a, b, c, SET(13), 7)
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353 | STEP(F, c, d, a, b, SET(14), 11)
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354 | STEP(F, b, c, d, a, SET(15), 19)
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355 |
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356 | /* Round 2 */
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357 | STEP(G, a, b, c, d, GET(0) + 0x5a827999, 3)
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358 | STEP(G, d, a, b, c, GET(4) + 0x5a827999, 5)
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359 | STEP(G, c, d, a, b, GET(8) + 0x5a827999, 9)
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360 | STEP(G, b, c, d, a, GET(12) + 0x5a827999, 13)
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361 | STEP(G, a, b, c, d, GET(1) + 0x5a827999, 3)
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362 | STEP(G, d, a, b, c, GET(5) + 0x5a827999, 5)
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363 | STEP(G, c, d, a, b, GET(9) + 0x5a827999, 9)
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364 | STEP(G, b, c, d, a, GET(13) + 0x5a827999, 13)
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365 | STEP(G, a, b, c, d, GET(2) + 0x5a827999, 3)
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366 | STEP(G, d, a, b, c, GET(6) + 0x5a827999, 5)
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367 | STEP(G, c, d, a, b, GET(10) + 0x5a827999, 9)
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368 | STEP(G, b, c, d, a, GET(14) + 0x5a827999, 13)
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369 | STEP(G, a, b, c, d, GET(3) + 0x5a827999, 3)
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370 | STEP(G, d, a, b, c, GET(7) + 0x5a827999, 5)
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371 | STEP(G, c, d, a, b, GET(11) + 0x5a827999, 9)
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372 | STEP(G, b, c, d, a, GET(15) + 0x5a827999, 13)
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373 |
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374 | /* Round 3 */
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375 | STEP(H, a, b, c, d, GET(0) + 0x6ed9eba1, 3)
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376 | STEP(H, d, a, b, c, GET(8) + 0x6ed9eba1, 9)
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377 | STEP(H, c, d, a, b, GET(4) + 0x6ed9eba1, 11)
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378 | STEP(H, b, c, d, a, GET(12) + 0x6ed9eba1, 15)
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379 | STEP(H, a, b, c, d, GET(2) + 0x6ed9eba1, 3)
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380 | STEP(H, d, a, b, c, GET(10) + 0x6ed9eba1, 9)
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381 | STEP(H, c, d, a, b, GET(6) + 0x6ed9eba1, 11)
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382 | STEP(H, b, c, d, a, GET(14) + 0x6ed9eba1, 15)
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383 | STEP(H, a, b, c, d, GET(1) + 0x6ed9eba1, 3)
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384 | STEP(H, d, a, b, c, GET(9) + 0x6ed9eba1, 9)
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385 | STEP(H, c, d, a, b, GET(5) + 0x6ed9eba1, 11)
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386 | STEP(H, b, c, d, a, GET(13) + 0x6ed9eba1, 15)
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387 | STEP(H, a, b, c, d, GET(3) + 0x6ed9eba1, 3)
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388 | STEP(H, d, a, b, c, GET(11) + 0x6ed9eba1, 9)
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389 | STEP(H, c, d, a, b, GET(7) + 0x6ed9eba1, 11)
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390 | STEP(H, b, c, d, a, GET(15) + 0x6ed9eba1, 15)
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391 |
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392 | a += saved_a;
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393 | b += saved_b;
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394 | c += saved_c;
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395 | d += saved_d;
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396 |
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397 | ptr += 64;
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398 | } while(size -= 64);
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399 |
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400 | ctx->a = a;
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401 | ctx->b = b;
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402 | ctx->c = c;
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403 | ctx->d = d;
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404 |
|
---|
405 | return ptr;
|
---|
406 | }
|
---|
407 |
|
---|
408 | static int MD4_Init(MD4_CTX *ctx)
|
---|
409 | {
|
---|
410 | ctx->a = 0x67452301;
|
---|
411 | ctx->b = 0xefcdab89;
|
---|
412 | ctx->c = 0x98badcfe;
|
---|
413 | ctx->d = 0x10325476;
|
---|
414 |
|
---|
415 | ctx->lo = 0;
|
---|
416 | ctx->hi = 0;
|
---|
417 | return 1;
|
---|
418 | }
|
---|
419 |
|
---|
420 | static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
|
---|
421 | {
|
---|
422 | MD4_u32plus saved_lo;
|
---|
423 | unsigned long used;
|
---|
424 |
|
---|
425 | saved_lo = ctx->lo;
|
---|
426 | ctx->lo = (saved_lo + size) & 0x1fffffff;
|
---|
427 | if(ctx->lo < saved_lo)
|
---|
428 | ctx->hi++;
|
---|
429 | ctx->hi += (MD4_u32plus)size >> 29;
|
---|
430 |
|
---|
431 | used = saved_lo & 0x3f;
|
---|
432 |
|
---|
433 | if(used) {
|
---|
434 | unsigned long available = 64 - used;
|
---|
435 |
|
---|
436 | if(size < available) {
|
---|
437 | memcpy(&ctx->buffer[used], data, size);
|
---|
438 | return;
|
---|
439 | }
|
---|
440 |
|
---|
441 | memcpy(&ctx->buffer[used], data, available);
|
---|
442 | data = (const unsigned char *)data + available;
|
---|
443 | size -= available;
|
---|
444 | body(ctx, ctx->buffer, 64);
|
---|
445 | }
|
---|
446 |
|
---|
447 | if(size >= 64) {
|
---|
448 | data = body(ctx, data, size & ~(unsigned long)0x3f);
|
---|
449 | size &= 0x3f;
|
---|
450 | }
|
---|
451 |
|
---|
452 | memcpy(ctx->buffer, data, size);
|
---|
453 | }
|
---|
454 |
|
---|
455 | static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
|
---|
456 | {
|
---|
457 | unsigned long used, available;
|
---|
458 |
|
---|
459 | used = ctx->lo & 0x3f;
|
---|
460 |
|
---|
461 | ctx->buffer[used++] = 0x80;
|
---|
462 |
|
---|
463 | available = 64 - used;
|
---|
464 |
|
---|
465 | if(available < 8) {
|
---|
466 | memset(&ctx->buffer[used], 0, available);
|
---|
467 | body(ctx, ctx->buffer, 64);
|
---|
468 | used = 0;
|
---|
469 | available = 64;
|
---|
470 | }
|
---|
471 |
|
---|
472 | memset(&ctx->buffer[used], 0, available - 8);
|
---|
473 |
|
---|
474 | ctx->lo <<= 3;
|
---|
475 | ctx->buffer[56] = curlx_ultouc((ctx->lo)&0xff);
|
---|
476 | ctx->buffer[57] = curlx_ultouc((ctx->lo >> 8)&0xff);
|
---|
477 | ctx->buffer[58] = curlx_ultouc((ctx->lo >> 16)&0xff);
|
---|
478 | ctx->buffer[59] = curlx_ultouc((ctx->lo >> 24)&0xff);
|
---|
479 | ctx->buffer[60] = curlx_ultouc((ctx->hi)&0xff);
|
---|
480 | ctx->buffer[61] = curlx_ultouc((ctx->hi >> 8)&0xff);
|
---|
481 | ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff);
|
---|
482 | ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24);
|
---|
483 |
|
---|
484 | body(ctx, ctx->buffer, 64);
|
---|
485 |
|
---|
486 | result[0] = curlx_ultouc((ctx->a)&0xff);
|
---|
487 | result[1] = curlx_ultouc((ctx->a >> 8)&0xff);
|
---|
488 | result[2] = curlx_ultouc((ctx->a >> 16)&0xff);
|
---|
489 | result[3] = curlx_ultouc(ctx->a >> 24);
|
---|
490 | result[4] = curlx_ultouc((ctx->b)&0xff);
|
---|
491 | result[5] = curlx_ultouc((ctx->b >> 8)&0xff);
|
---|
492 | result[6] = curlx_ultouc((ctx->b >> 16)&0xff);
|
---|
493 | result[7] = curlx_ultouc(ctx->b >> 24);
|
---|
494 | result[8] = curlx_ultouc((ctx->c)&0xff);
|
---|
495 | result[9] = curlx_ultouc((ctx->c >> 8)&0xff);
|
---|
496 | result[10] = curlx_ultouc((ctx->c >> 16)&0xff);
|
---|
497 | result[11] = curlx_ultouc(ctx->c >> 24);
|
---|
498 | result[12] = curlx_ultouc((ctx->d)&0xff);
|
---|
499 | result[13] = curlx_ultouc((ctx->d >> 8)&0xff);
|
---|
500 | result[14] = curlx_ultouc((ctx->d >> 16)&0xff);
|
---|
501 | result[15] = curlx_ultouc(ctx->d >> 24);
|
---|
502 |
|
---|
503 | memset(ctx, 0, sizeof(*ctx));
|
---|
504 | }
|
---|
505 |
|
---|
506 | #endif /* CRYPTO LIBS */
|
---|
507 |
|
---|
508 | CURLcode Curl_md4it(unsigned char *output, const unsigned char *input,
|
---|
509 | const size_t len)
|
---|
510 | {
|
---|
511 | MD4_CTX ctx;
|
---|
512 |
|
---|
513 | #ifdef VOID_MD4_INIT
|
---|
514 | MD4_Init(&ctx);
|
---|
515 | #else
|
---|
516 | if(!MD4_Init(&ctx))
|
---|
517 | return CURLE_FAILED_INIT;
|
---|
518 | #endif
|
---|
519 |
|
---|
520 | MD4_Update(&ctx, input, curlx_uztoui(len));
|
---|
521 | MD4_Final(output, &ctx);
|
---|
522 | return CURLE_OK;
|
---|
523 | }
|
---|
524 |
|
---|
525 | #endif /* USE_CURL_NTLM_CORE */
|
---|