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1 /* |
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2 * Copyright (c) 2004 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 "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: . |
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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 |
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21 // INCLUDES |
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22 #include <e32std.h> |
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23 #include "srtpmasterkey.h" |
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24 #include "srtpmastersalt.h" |
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25 #include "srtpcryptocontext.h" |
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26 #include "srtpdef.h" |
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27 #include "srtputils.h" |
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28 |
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29 |
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30 |
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31 // --------------------------------------------------------------------------- |
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32 // Two-phased constructor. Used when stream uses its own cryptographic context |
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33 // |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 EXPORT_C CSRTPMasterKey* CSRTPMasterKey::NewL( const TDesC8& aKey, |
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37 const TDesC8& aMKI, |
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38 TUint aN_E, |
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39 TUint aN_A ) |
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40 { |
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41 |
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42 |
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43 CSRTPMasterKey* self = CSRTPMasterKey::NewLC( aKey, |
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44 aMKI, |
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45 aN_E, |
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46 aN_A); |
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47 CleanupStack::Pop( self ); |
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48 return self; |
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49 } |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // Two-phased constructor. Used when stream uses its own cryptographic context |
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53 // |
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54 // --------------------------------------------------------------------------- |
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55 // |
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56 EXPORT_C CSRTPMasterKey* CSRTPMasterKey::NewLC( const TDesC8& aKey, |
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57 const TDesC8& aMKI, |
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58 TUint aN_E, |
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59 TUint aN_A ) |
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60 { |
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61 |
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62 CSRTPMasterKey* self = new( ELeave )CSRTPMasterKey ( aN_E, |
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63 aN_A); |
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64 CleanupStack::PushL( self ); |
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65 self->ConstructL( aKey, aMKI ); |
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66 return self; |
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67 } |
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68 |
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69 // --------------------------------------------------------------------------- |
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70 // CSRTPMasterKey::CSRTPMasterKey |
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71 // --------------------------------------------------------------------------- |
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72 // |
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73 CSRTPMasterKey::CSRTPMasterKey( TUint aN_E, |
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74 TUint aN_A) : |
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75 iN_E( aN_E ), |
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76 iN_A( aN_A ) |
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77 { |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // CSRTPMasterKey::ConstructL |
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82 // ----------------------------------------------------------------------------- |
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83 // |
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84 void CSRTPMasterKey::ConstructL( const TDesC8& aKey, |
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85 const TDesC8& aMKI ) |
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86 { |
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87 iKey = aKey.AllocL(); |
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88 if(aKey.Length()>16) |
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89 { |
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90 TSRTPUtils::HexString( *iKey ); |
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91 } |
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92 iMKI = aMKI.AllocL(); |
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93 iMKI->Des().SetLength(aMKI.Length()); |
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94 } |
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95 |
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96 // --------------------------------------------------------------------------- |
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97 // CSRTPMasterKey::~CSRTPMasterKey |
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98 // --------------------------------------------------------------------------- |
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99 // |
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100 CSRTPMasterKey::~CSRTPMasterKey( ) |
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101 |
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102 { |
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103 delete iKey; |
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104 delete iMKI; |
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105 } |
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106 |
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107 |
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108 // --------------------------------------------------------------------------- |
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109 // CSRTPMasterKey::MasterKey |
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110 // --------------------------------------------------------------------------- |
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111 // |
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112 EXPORT_C const TDesC8& CSRTPMasterKey::MasterKey() const |
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113 { |
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114 return *iKey; |
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115 } |
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116 |
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117 |
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118 // --------------------------------------------------------------------------- |
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119 // CCSRTPMasterKey::MKI |
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120 // --------------------------------------------------------------------------- |
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121 // |
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122 EXPORT_C const TDesC8& CSRTPMasterKey::MKI() const |
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123 { |
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124 return *iMKI; |
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125 }; |
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126 |
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127 // --------------------------------------------------------------------------- |
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128 // CSRTPMasterKey::EncrKeyLength |
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129 // --------------------------------------------------------------------------- |
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130 // |
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131 EXPORT_C TUint CSRTPMasterKey::EncrKeyLength() const |
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132 { |
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133 return iN_E; |
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134 } |
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135 |
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136 |
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137 // --------------------------------------------------------------------------- |
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138 // CSRTPMasterKey::AuthKeyLength |
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139 // --------------------------------------------------------------------------- |
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140 // |
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141 EXPORT_C TUint CSRTPMasterKey::AuthKeyLength() const |
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142 { |
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143 return iN_A; |
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144 } |
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145 |
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146 |
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147 // --------------------------------------------------------------------------- |
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148 // CSRTPMasterKey::operator= |
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149 // --------------------------------------------------------------------------- |
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150 // |
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151 const CSRTPMasterKey& CSRTPMasterKey::operator=(const CSRTPMasterKey& aKey) |
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152 { |
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153 return aKey; |
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154 } |
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155 |
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156 // --------------------------------------------------------------------------- |
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157 // CSRTPMasterKey::Valid() |
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158 // --------------------------------------------------------------------------- |
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159 // |
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160 EXPORT_C TBool CSRTPMasterKey::Valid() const |
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161 { |
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162 if (iKey->Length() != KSRTPDefaultMasterKeyLength/8) |
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163 { |
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164 return EFalse; |
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165 } |
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166 |
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167 if (iN_E != KSRTPDefSessionEncryptionKeyLength) |
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168 { |
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169 return EFalse; |
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170 } |
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171 |
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172 if (iN_A != KSRTPDefSessionAuthenticationKeyLength) |
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173 { |
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174 return EFalse; |
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175 } |
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176 |
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177 return ETrue; |
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178 } |
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179 |
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180 |
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181 |
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182 |