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1 /* |
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2 * Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: EAP and WLAN authentication protocols. |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #if !defined( _EAP_AM_CRYPTO_MD4_H_ ) |
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21 #define _EAP_AM_CRYPTO_MD4_H_ |
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22 |
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23 #include "eap_am_types.h" |
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24 #include "eap_variable_data.h" |
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25 #include "eap_am_export.h" |
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26 #include "eap_am_tools.h" |
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27 |
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28 |
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29 //-------------------------------------------------- |
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30 |
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31 /// The eap_am_crypto_md4_c class includes the state of |
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32 /// one instance of MD4 algorithm. |
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33 class EAP_EXPORT eap_am_crypto_md4_c |
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34 { |
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35 |
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36 private: |
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37 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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38 |
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39 enum eap_md4_init |
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40 { |
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41 EAP_MD4_INIT_H0 = 0x67452301ul, |
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42 EAP_MD4_INIT_H1 = 0xefcdab89ul, |
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43 EAP_MD4_INIT_H2 = 0x98badcfeul, |
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44 EAP_MD4_INIT_H3 = 0x10325476ul, |
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45 }; |
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46 |
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47 enum eap_md4_const |
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48 { |
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49 eap_md4_const_S11 = 3, |
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50 eap_md4_const_S12 = 7, |
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51 eap_md4_const_S13 = 11, |
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52 eap_md4_const_S14 = 19, |
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53 eap_md4_const_S21 = 3, |
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54 eap_md4_const_S22 = 5, |
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55 eap_md4_const_S23 = 9, |
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56 eap_md4_const_S24 = 13, |
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57 eap_md4_const_S31 = 3, |
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58 eap_md4_const_S32 = 9, |
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59 eap_md4_const_S33 = 11, |
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60 eap_md4_const_S34 = 15, |
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61 }; |
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62 |
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63 enum eap_md4_sizes |
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64 { |
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65 EAP_AM_CRYPTO_MD4_BLOCK_u32_COUNT = 16ul, ///< 16 u32_t integers. |
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66 EAP_AM_CRYPTO_MD4_BLOCK_BYTE_SIZE |
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67 = EAP_AM_CRYPTO_MD4_BLOCK_u32_COUNT * sizeof(u32_t), ///< in bytes. |
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68 EAP_AM_CRYPTO_MD4_DIGEST_BUFFER_u32_COUNT = 4ul, ///< 4 u32_t integers. |
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69 EAP_AM_CRYPTO_MD4_DIGEST_BUFFER_BYTE_SIZE |
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70 = EAP_AM_CRYPTO_MD4_DIGEST_BUFFER_u32_COUNT |
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71 * sizeof(u32_t), ///< in bytes. |
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72 }; |
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73 |
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74 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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75 |
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76 /// This is pointer to the tools class. |
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77 abs_eap_am_tools_c * const m_am_tools; |
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78 |
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79 /// This buffer saves remaining data between subsequent calls |
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80 /// of hash_update(). |
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81 eap_variable_data_c m_saved_data; |
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82 |
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83 /// This attribute saves the length of hashed data. |
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84 u64_t m_full_hashed_data_length; |
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85 |
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86 u32_t m_W_in_host_order[EAP_AM_CRYPTO_MD4_BLOCK_u32_COUNT]; |
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87 |
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88 /// This buffer saves the digest value between subsequent calls |
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89 /// of hash_update(). |
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90 u32_t m_H[EAP_AM_CRYPTO_MD4_DIGEST_BUFFER_u32_COUNT]; |
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91 |
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92 /// This indicates whether this object was generated successfully. |
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93 bool m_is_valid; |
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94 |
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95 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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96 |
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97 inline u32_t eap_md4_F( |
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98 const u32_t X, |
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99 const u32_t Y, |
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100 const u32_t Z |
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101 ); |
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102 |
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103 inline u32_t eap_md4_G( |
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104 const u32_t X, |
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105 const u32_t Y, |
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106 const u32_t Z |
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107 ); |
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108 |
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109 inline u32_t eap_md4_H( |
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110 const u32_t X, |
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111 const u32_t Y, |
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112 const u32_t Z |
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113 ); |
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114 |
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115 inline u32_t eap_md4_rotate_left( |
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116 const u32_t value, |
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117 const u32_t shift |
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118 ); |
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119 |
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120 inline void eap_md4_FF( |
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121 const u32_t index, |
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122 u32_t * const A, |
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123 const u32_t B, |
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124 const u32_t C, |
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125 const u32_t D, |
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126 const u32_t X, |
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127 const u32_t S |
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128 ); |
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129 |
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130 inline void eap_md4_GG( |
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131 const u32_t index, |
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132 u32_t * const A, |
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133 const u32_t B, |
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134 const u32_t C, |
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135 const u32_t D, |
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136 const u32_t X, |
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137 const u32_t S |
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138 ); |
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139 |
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140 inline void eap_md4_HH( |
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141 const u32_t index, |
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142 u32_t * const A, |
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143 const u32_t B, |
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144 const u32_t C, |
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145 const u32_t D, |
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146 const u32_t X, |
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147 const u32_t S |
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148 ); |
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149 |
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150 /// @param W is an array of 16 input 32-bit unsigned integers |
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151 /// in host order. |
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152 /// @param W_count is count of integers in W array. |
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153 EAP_FUNC_IMPORT eap_status_e eap_md4_transform_host_order( |
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154 const u32_t * const W, |
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155 const u32_t W_count |
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156 ); |
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157 |
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158 /// @param W is an array of 16 input 32-bit unsigned integers |
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159 /// in network order. |
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160 /// @param W_count is count of integers in W array. |
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161 EAP_FUNC_IMPORT eap_status_e eap_md4_process_data( |
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162 const u32_t * const W, |
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163 const u32_t W_count |
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164 ); |
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165 |
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166 /** |
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167 * This function cleans up the MD4 context. |
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168 */ |
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169 EAP_FUNC_IMPORT eap_status_e hash_cleanup(); |
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170 |
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171 /** |
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172 * This function copies the message digest to output buffer. |
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173 */ |
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174 EAP_FUNC_IMPORT eap_status_e copy_message_digest( |
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175 void * const output, |
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176 u32_t * const max_output_size); |
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177 |
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178 |
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179 /** |
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180 * The set_is_invalid() function sets the state of the eap_am_crypto_md4_c |
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181 * object invalid. |
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182 * The eap_am_crypto_md4_c object calls this function after it is |
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183 * initialized. |
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184 */ |
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185 EAP_FUNC_IMPORT void set_is_invalid(); |
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186 |
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187 /** |
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188 * The set_is_valid() function sets the state of the eap_am_crypto_md4_c |
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189 * object valid. |
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190 * The eap_am_crypto_md4_c object calls this function after it is |
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191 * initialized. |
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192 */ |
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193 EAP_FUNC_IMPORT void set_is_valid(); |
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194 |
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195 /** |
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196 * This function copies the context of MD4. |
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197 */ |
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198 EAP_FUNC_IMPORT eap_status_e copy_context( |
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199 const eap_variable_data_c * const saved_data, |
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200 const u64_t full_hashed_data_length, |
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201 const u32_t * const H, |
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202 const u32_t * const W_in_host_order); |
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203 |
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204 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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205 public: |
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206 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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207 |
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208 /** |
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209 * Destructor does nothing special. |
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210 */ |
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211 EAP_FUNC_IMPORT virtual ~eap_am_crypto_md4_c(); |
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212 |
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213 /** |
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214 * Constructor initializes the member attributes. |
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215 */ |
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216 EAP_FUNC_IMPORT eap_am_crypto_md4_c(abs_eap_am_tools_c * const tools); |
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217 |
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218 /** |
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219 * The get_is_valid() function returns the status of the |
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220 * eap_am_crypto_md4_c object. |
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221 * True indicates the object is allocated successfully. |
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222 */ |
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223 EAP_FUNC_IMPORT bool get_is_valid(); |
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224 |
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225 /** |
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226 * This function returns the size of message digest of HASH-algorithm. |
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227 */ |
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228 EAP_FUNC_IMPORT u32_t get_digest_length(); |
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229 |
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230 /** |
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231 * This function returns the size of block of HASH-algorithm. |
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232 */ |
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233 EAP_FUNC_IMPORT u32_t get_block_size(); |
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234 |
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235 /** |
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236 * This function initializes the context of MD4-algorithm. |
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237 */ |
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238 EAP_FUNC_IMPORT eap_status_e hash_init(); |
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239 |
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240 /** |
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241 * This function updates the context of MD4-algorithm with data. |
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242 */ |
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243 EAP_FUNC_IMPORT eap_status_e hash_update( |
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244 const void * const data, |
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245 const u32_t data_length); |
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246 |
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247 /** |
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248 * This function writes the message digest to buffer. |
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249 * @param Length is set if md_length_or_null is non-NULL. |
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250 */ |
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251 EAP_FUNC_IMPORT eap_status_e hash_final( |
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252 void * const message_digest, |
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253 u32_t *md_length_or_null); |
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254 |
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255 /** |
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256 * This function copies the context of MD4. |
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257 */ |
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258 EAP_FUNC_IMPORT eap_am_crypto_md4_c * copy(); |
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259 }; |
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260 |
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261 //-------------------------------------------------- |
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262 |
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263 #endif //#if !defined( _EAP_AM_CRYPTO_OPENSSL_H_ ) |
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264 |
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265 |
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266 |
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267 // End. |