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1 /* |
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2 * Copyright (c) 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 "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: Implementation of the MCC Crypto Adapter |
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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 // System includes |
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22 #include <e32base.h> |
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23 #include <srtpcryptocontext.h> |
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24 #include <srtpmasterkey.h> |
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25 #include <srtpmastersalt.h> |
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26 #include <mmf/common/mmfcontrollerframework.h> |
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27 |
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28 // User include |
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29 #include "mmcccryptoadapter.h" |
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30 #include "mccrtpdefs.h" |
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31 #include "mmcccryptocontext.h" |
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32 |
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33 |
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34 // ======== MEMBER FUNCTIONS ======== |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 // TMccCryptoAdapter::CreateCryptoContextL |
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38 // |
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39 // --------------------------------------------------------------------------- |
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40 // |
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41 CSRTPCryptoContext* TMccCryptoAdapter::CreateCryptoContextL( |
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42 const TMccCryptoContext& aContextParams ) |
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43 { |
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44 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::CreateCryptoContextL IN" ) |
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45 |
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46 const TMccSrtpMasterKey mccMasterkey( aContextParams.MasterKey() ); |
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47 const TMccSrtpMasterSalt mccMasterSalt( aContextParams.MasterSalt() ); |
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48 const TMccSrtpCryptoParams mccCryptoParams( aContextParams.CryptoParams() ); |
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49 |
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50 // Creates Srtp master key |
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51 CSRTPMasterKey* masterKey = CSRTPMasterKey::NewL( mccMasterkey.iMasterKey, |
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52 mccMasterkey.iMKI, |
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53 mccMasterkey.iEncKeyBitLength, |
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54 mccMasterkey.iAuthKeyBitLength ); |
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55 CleanupStack::PushL( masterKey ); |
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56 |
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57 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::masterKey - iEncKeyBitLength: %d ", mccMasterkey.iEncKeyBitLength ) |
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58 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::masterKey - iAuthKeyBitLength: %d ", mccMasterkey.iAuthKeyBitLength ) |
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59 |
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60 |
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61 // Creates Srtp master salt |
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62 CSRTPMasterSalt* masterSalt = CSRTPMasterSalt::NewL( mccMasterSalt.iMasterSalt, |
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63 mccMasterSalt.iSaltKeyLength ); |
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64 CleanupStack::PushL( masterSalt ); |
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65 |
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66 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::masterSalt - iSaltKeyLength: %d ", mccMasterSalt.iSaltKeyLength ) |
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67 |
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68 // Creates Srtp crypto params |
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69 TSrtpCryptoParams cryptoParams; |
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70 cryptoParams.iSrtpEncAlg = ( TSRTPEncAlg )mccCryptoParams.iSrtpEncAlg; |
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71 cryptoParams.iSrtpAuthAlg = ( TSRTPAuthAlg )mccCryptoParams.iSrtpAuthAlg; |
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72 cryptoParams.iSrtpAuthTagLen = mccCryptoParams.iSrtpAuthTagLen; |
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73 cryptoParams.iPrefixLen = mccCryptoParams.iPrefixLen; |
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74 cryptoParams.iSrtpReplayProtection = mccCryptoParams.iSrtpReplayProtection; |
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75 cryptoParams.iSrtpKeyDervRate = mccCryptoParams.iSrtpKeyDervRate; |
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76 |
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77 // RTCP Crypto Params |
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78 cryptoParams.iSrtcpEncAlg = ( TSRTPEncAlg )mccCryptoParams.iSrtcpEncAlg; |
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79 cryptoParams.iSrtcpAuthAlg = ( TSRTPAuthAlg )mccCryptoParams.iSrtcpAuthAlg; |
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80 cryptoParams.iSrtcpAuthTagLen = mccCryptoParams.iSrtcpAuthTagLen; |
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81 cryptoParams.iSrtcpReplayProtection = mccCryptoParams.iSrtcpReplayProtection; |
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82 cryptoParams.iSrtcpKeyDervRate = mccCryptoParams.iSrtcpKeyDervRate; |
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83 |
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84 cryptoParams.iROCTransRate = mccCryptoParams.iROCTransRate; |
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85 cryptoParams.iMasterKeysLifeTime = mccCryptoParams.iMasterKeysLifeTime; |
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86 cryptoParams.iReplayWindowSizeHint = mccCryptoParams.iReplayWindowSizeHint; |
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87 cryptoParams.iIsRCCm3Sync = mccCryptoParams.iIsRCCm3Sync; |
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88 |
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89 |
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90 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtpEncAlg, [0=null, 1=AES_CM]: %d", ( TUint )cryptoParams.iSrtpEncAlg ) |
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91 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtpAuthAlg [0=null, 1=HMAC_SHA1 2=RCCm1, 3=RCCm2, 4=RCCm3]: %d", ( TUint )cryptoParams.iSrtpAuthAlg ) |
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92 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtpAuthTagLen: %d", cryptoParams.iSrtpAuthTagLen ) |
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93 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iPrefixLen: %d", cryptoParams.iPrefixLen ) |
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94 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtpReplayProtection: %d", cryptoParams.iSrtpReplayProtection ) |
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95 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtpKeyDervRate: %d", cryptoParams.iSrtpKeyDervRate ) |
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96 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "" ) |
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97 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtcpEncAlg, [0=null, 1=AES_CM] : %d", ( TUint )cryptoParams.iSrtcpEncAlg ) |
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98 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtcpAuthAlg [0=null, 1=HMAC_SHA1 2=RCCm1, 3=RCCm2, 4=RCCm3]: %d", ( TUint )cryptoParams.iSrtcpAuthAlg ) |
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99 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtcpAuthTagLen: %d", cryptoParams.iSrtcpAuthTagLen ) |
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100 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtcpReplayProtection: %d", cryptoParams.iSrtcpReplayProtection ) |
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101 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iSrtcpKeyDervRate: %d", cryptoParams.iSrtcpKeyDervRate ) |
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102 |
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103 |
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104 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iROCTransRate: %d", cryptoParams.iROCTransRate) |
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105 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iMasterKeysLifeTime: %d", cryptoParams.iMasterKeysLifeTime ) |
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106 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iReplayWindowSizeHint: %d", cryptoParams.iReplayWindowSizeHint ) |
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107 TRACE_RTP_CRYPTO_ADAPTER_PRINT2( "TMccCryptoAdapter::cryptoParams - iIsRCCm3Sync: %d", cryptoParams.iIsRCCm3Sync ) |
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108 |
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109 |
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110 CleanupStack::Pop( masterSalt ); |
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111 CleanupStack::Pop( masterKey ); |
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112 |
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113 CSRTPCryptoContext* context = CSRTPCryptoContext::NewL( masterKey, |
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114 masterSalt, |
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115 cryptoParams ); |
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116 |
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117 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::CreateCryptoContextL OUT" ); |
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118 return context; |
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119 }; |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // TMccCryptoAdapter::UpdateCryptoContextL() |
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123 // |
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124 // --------------------------------------------------------------------------- |
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125 // |
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126 void TMccCryptoAdapter::UpdateCryptoContextL( const TMccCryptoContext& aContextParams, |
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127 CSRTPCryptoContext& aContext ) |
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128 { |
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129 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL IN" ) |
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130 |
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131 const TMccSrtpMasterKey mccMasterkey( aContextParams.MasterKey() ); |
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132 const TMccSrtpMasterSalt mccMasterSalt( aContextParams.MasterSalt() ); |
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133 const TMccSrtpCryptoParams mccCryptoParams( aContextParams.CryptoParams() ); |
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134 |
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135 // Creates Srtp master key |
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136 CSRTPMasterKey* masterKey = CSRTPMasterKey::NewL( mccMasterkey.iMasterKey, |
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137 mccMasterkey.iMKI, |
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138 mccMasterkey.iEncKeyBitLength, |
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139 mccMasterkey.iAuthKeyBitLength ); |
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140 |
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141 CleanupStack::PushL( masterKey ); |
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142 |
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143 CSRTPMasterSalt* masterSalt = CSRTPMasterSalt::NewL( mccMasterSalt.iMasterSalt, |
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144 mccMasterSalt.iSaltKeyLength ); |
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145 CleanupStack::PushL( masterSalt ); |
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146 |
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147 if ( EFalse == masterKey->Valid() ) |
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148 { |
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149 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL Masterkey isn't valid" ) |
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150 |
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151 User::Leave( KErrArgument ); |
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152 } |
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153 |
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154 if ( EFalse == masterSalt->Valid() ) |
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155 { |
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156 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL Mastersalt isn't valid" ) |
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157 |
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158 User::Leave( KErrArgument ); |
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159 } |
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160 |
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161 if ( ( aContext.MasterSalt().MasterSalt()).Compare( masterSalt->MasterSalt() ) != 0 ) |
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162 { |
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163 aContext.SetMasterSalt( masterSalt ); |
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164 CleanupStack::Pop( masterSalt ); |
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165 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL MasterSalt Is changed" ) |
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166 } |
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167 else |
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168 { |
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169 CleanupStack::PopAndDestroy( masterSalt ); |
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170 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL MasterSalt Isn't changed" ) |
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171 } |
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172 |
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173 if ( ( aContext.MasterKey().MasterKey()).Compare( masterKey->MasterKey() ) != 0 || |
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174 ( aContext.MasterKey().MKI()).Compare( masterKey->MKI() ) != 0 ) |
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175 { |
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176 aContext.SetMasterKey( masterKey ); |
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177 CleanupStack::Pop( masterKey ); |
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178 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL MasterKey Is changed" ) |
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179 } |
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180 else |
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181 { |
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182 CleanupStack::PopAndDestroy( masterKey ); |
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183 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL MasterKey Isn't changed" ) |
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184 } |
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185 |
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186 TRACE_RTP_CRYPTO_ADAPTER_PRINT( "TMccCryptoAdapter::UpdateCryptoContextL OUT" ) |
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187 } |
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188 // End of File |