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1 /* |
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2 * Copyright (c) 2007-2009 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: |
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15 * Example CTestStep derived implementation |
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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 @file |
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22 @internalTechnology |
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23 */ |
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24 #include "keyexchangesyncstep.h" |
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25 |
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26 #include "keypair.h" |
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27 #include "cryptokeypairgeneratorapi.h" |
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28 #include "cryptokeyagreementapi.h" |
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29 #include <bigint.h> |
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30 |
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31 using namespace CryptoSpi; |
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32 |
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33 CKeyExchangeSyncStep::~CKeyExchangeSyncStep() |
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34 { |
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35 } |
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36 |
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37 CKeyExchangeSyncStep::CKeyExchangeSyncStep() |
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38 { |
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39 SetTestStepName(KKeyExchangeSyncStep); |
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40 } |
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41 |
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42 TVerdict CKeyExchangeSyncStep::doTestStepPreambleL() |
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43 { |
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44 SetTestStepResult(EPass); |
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45 return TestStepResult(); |
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46 } |
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47 |
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48 TVerdict CKeyExchangeSyncStep::doTestStepL() |
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49 { |
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50 INFO_PRINTF1(_L("*** Key Exchange - DH Key Agreement ***")); |
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51 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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52 |
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53 if (TestStepResult()==EPass) |
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54 { |
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55 //Assume faliure, unless all is successful |
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56 SetTestStepResult(EFail); |
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57 |
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58 TVariantPtrC testVariant; |
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59 TVariantPtrC dhnVariant; |
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60 TVariantPtrC dhgVariant; |
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61 |
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62 if( !GetStringFromConfig(ConfigSection(),KConfigExchangeKey, dhnVariant) || |
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63 !GetStringFromConfig(ConfigSection(),KConfigExchangeKey, dhgVariant ) |
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64 ) |
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65 { |
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66 // Leave if there's any error. |
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67 User::Leave(KErrNotFound); |
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68 } |
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69 else |
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70 { |
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71 /* |
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72 * both DH keys (ie our private and their public keys) must use the same N and G parameters |
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73 */ |
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74 INFO_PRINTF1(_L("Creating Primes and Base Integers...")); |
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75 |
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76 RInteger DH_N = RInteger::NewPrimeL(1024); // from ini file |
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77 CleanupClosePushL(DH_N); |
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78 RInteger DH_N_MinusTwo = RInteger::NewL(DH_N); |
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79 CleanupClosePushL(DH_N_MinusTwo); |
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80 DH_N_MinusTwo-=2; |
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81 |
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82 RInteger DH_G = RInteger::NewRandomL(TInteger::Two(), DH_N_MinusTwo); |
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83 CleanupClosePushL(DH_G); |
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84 |
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85 INFO_PRINTF1(_L("Creating Key Pair Generator...")); |
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86 |
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87 // create a DH key pair generator interface for creating the 2 key pairs |
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88 CKeyPairGenerator* keyPairGeneratorImpl = NULL; |
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89 |
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90 TRAPD_LOG(err,CKeyPairGeneratorFactory::CreateKeyPairGeneratorL(keyPairGeneratorImpl, |
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91 KDHKeyPairGeneratorUid, |
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92 NULL)); |
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93 |
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94 if(keyPairGeneratorImpl && (err==KErrNone)) |
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95 { |
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96 |
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97 CleanupStack::PushL(keyPairGeneratorImpl); |
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98 |
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99 // package up the common parameters N and G for use through the rest of this method |
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100 CCryptoParams* keyParameters = CCryptoParams::NewLC(); |
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101 keyParameters->AddL(DH_N, KDhKeyParameterNUid); |
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102 keyParameters->AddL(DH_G, KDhKeyParameterGUid); |
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103 |
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104 /* |
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105 * call the api to create a DH key pair for alice |
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106 */ |
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107 INFO_PRINTF1(_L("Generating DH ALICE Key Pair...")); |
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108 CKeyPair* keyAlice = NULL; |
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109 |
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110 TRAP_LOG(err,keyPairGeneratorImpl->GenerateKeyPairL(NULL, |
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111 *keyParameters, |
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112 keyAlice)); |
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113 CleanupStack::PushL(keyAlice); |
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114 |
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115 /* |
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116 * call the api to create a DH key pair for bob |
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117 */ |
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118 INFO_PRINTF1(_L("Generating DH BOB Key Pair...")); |
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119 CKeyPair* keyBob = NULL; |
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120 TRAP_LOG(err,keyPairGeneratorImpl->GenerateKeyPairL(NULL, |
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121 *keyParameters, |
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122 keyBob)); |
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123 CleanupStack::PushL(keyBob); |
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124 |
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125 /* |
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126 * get DH key agreement interfaces |
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127 */ |
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128 INFO_PRINTF1(_L("Generating ALICE & BOB Key Agreement Interfaces...")); |
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129 CKeyAgreement* keyAgreementAliceImpl = NULL; |
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130 |
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131 TRAP_LOG(err,CKeyAgreementFactory::CreateKeyAgreementL(keyAgreementAliceImpl, |
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132 KDHAgreementUid, |
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133 keyAlice->PrivateKey(), |
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134 keyParameters)); |
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135 CleanupStack::PushL(keyAgreementAliceImpl); |
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136 |
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137 CKeyAgreement* keyAgreementBobImpl = NULL; |
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138 |
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139 TRAP_LOG(err,CKeyAgreementFactory::CreateKeyAgreementL(keyAgreementBobImpl, |
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140 KDHAgreementUid, |
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141 keyBob->PrivateKey(), |
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142 keyParameters)); |
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143 CleanupStack::PushL(keyAgreementBobImpl); |
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144 |
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145 /* |
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146 * call the api to get a DH agreed keys |
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147 */ |
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148 INFO_PRINTF1(_L("Generating Agreed Keys...")); |
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149 |
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150 CKey* agreedKeyAlice = keyAgreementAliceImpl->AgreeL(keyBob->PublicKey(), keyParameters); |
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151 CleanupStack::PushL(agreedKeyAlice); |
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152 |
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153 CKey* agreedKeyBob = keyAgreementBobImpl->AgreeL(keyAlice->PublicKey(), keyParameters); |
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154 CleanupStack::PushL(agreedKeyBob); |
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155 |
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156 /* |
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157 * compare the agreed keys |
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158 */ |
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159 const TInteger& agreedKeyDataAlice = agreedKeyAlice->GetBigIntL(KSymmetricKeyParameterUid); |
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160 const TInteger& agreedKeyDataBob = agreedKeyBob->GetBigIntL(KSymmetricKeyParameterUid); |
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161 |
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162 if (agreedKeyDataAlice == agreedKeyDataBob) |
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163 { |
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164 INFO_PRINTF1(_L("*** PASS : Key Agreement Success ***")); |
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165 SetTestStepResult(EPass); |
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166 } |
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167 else |
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168 { |
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169 INFO_PRINTF1(_L("*** FAIL : Agreed Keys Mismatch ***")); |
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170 SetTestStepResult(EFail); |
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171 } |
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172 |
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173 // Set the private keys to check the new agreements. |
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174 keyAgreementAliceImpl->SetKeyL(keyAlice->PrivateKey(), keyParameters); |
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175 keyAgreementAliceImpl->SetKeyL(keyBob->PrivateKey(), keyParameters); |
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176 |
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177 /* |
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178 * call the api to get a DH agreed keys |
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179 */ |
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180 INFO_PRINTF1(_L("Generating Agreed Keys second time...")); |
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181 |
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182 CKey* agreedKeyAlice1 = keyAgreementAliceImpl->AgreeL(keyBob->PublicKey(), keyParameters); |
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183 CleanupStack::PushL(agreedKeyAlice1); |
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184 |
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185 CKey* agreedKeyBob1 = keyAgreementBobImpl->AgreeL(keyAlice->PublicKey(), keyParameters); |
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186 CleanupStack::PushL(agreedKeyBob1); |
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187 |
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188 /* |
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189 * compare the agreed keys |
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190 */ |
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191 const TInteger& agreedKeyDataAlice1 = agreedKeyAlice->GetBigIntL(KSymmetricKeyParameterUid); |
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192 const TInteger& agreedKeyDataBob1 = agreedKeyBob->GetBigIntL(KSymmetricKeyParameterUid); |
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193 |
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194 if (agreedKeyDataAlice1 != agreedKeyDataBob1) |
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195 { |
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196 INFO_PRINTF1(_L("*** FAIL : Second Agreed Keys Mismatch ***")); |
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197 SetTestStepResult(EFail); |
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198 } |
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199 |
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200 const CCryptoParams& cryptoParams1 = agreedKeyAlice1->KeyParameters(); |
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201 const CCryptoParams& cryptoParams2 = agreedKeyBob1->KeyParameters(); |
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202 if (cryptoParams1.Count() != cryptoParams2.GetParams().Count()) |
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203 { |
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204 INFO_PRINTF1(_L("*** FAIL : Key Parameters' Count Mismatch ***")); |
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205 SetTestStepResult(EFail); |
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206 } |
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207 |
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208 TInt paramLength = 10; |
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209 HBufC16* buf = HBufC16::NewLC(paramLength); |
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210 TPtr16 ptr = buf->Des(); |
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211 ptr.Copy(_L("DH_N")); |
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212 CCryptoParams* params = CCryptoParams::NewL(); |
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213 params->AddL(*buf, KDhKeyParameterNUid); |
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214 if(!params->Count()) |
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215 { |
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216 INFO_PRINTF1(_L("*** FAIL : Parameter construction with descriptor failed ***")); |
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217 SetTestStepResult(EFail); |
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218 } |
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219 |
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220 if (agreedKeyAlice1->IsPresent(KSymmetricKeyParameterUid)) |
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221 { |
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222 TRAPD(err, agreedKeyAlice1->GetTIntL(KSymmetricKeyParameterUid)); |
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223 if(err == KErrNone) |
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224 { |
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225 INFO_PRINTF1(_L("*** FAIL : Expected Key Parameter Int Value Mismatch ***")); |
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226 SetTestStepResult(EFail); |
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227 } |
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228 } |
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229 |
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230 // Clear the second key agreement elements. |
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231 CleanupStack::PopAndDestroy(3, agreedKeyAlice1); |
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232 |
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233 /* |
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234 * cleanup stack - it should contain privateKey, keyAgreementImpl, publicKey, keyParameters and agreedKey |
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235 */ |
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236 CleanupStack::PopAndDestroy(agreedKeyBob); |
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237 CleanupStack::PopAndDestroy(agreedKeyAlice); |
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238 CleanupStack::PopAndDestroy(keyAgreementBobImpl); |
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239 CleanupStack::PopAndDestroy(keyAgreementAliceImpl); |
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240 CleanupStack::PopAndDestroy(keyBob); |
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241 CleanupStack::PopAndDestroy(keyAlice); |
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242 CleanupStack::PopAndDestroy(keyParameters); |
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243 CleanupStack::PopAndDestroy(keyPairGeneratorImpl); |
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244 } |
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245 |
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246 CleanupStack::PopAndDestroy(&DH_G); |
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247 CleanupStack::PopAndDestroy(&DH_N_MinusTwo); |
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248 CleanupStack::PopAndDestroy(&DH_N); |
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249 } |
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250 |
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251 INFO_PRINTF2(_L("HEAP CELLS: %d"), User::CountAllocCells()); |
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252 |
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253 } |
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254 return TestStepResult(); |
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255 } |
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256 |
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257 TVerdict CKeyExchangeSyncStep::doTestStepPostambleL() |
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258 { |
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259 return TestStepResult(); |
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260 } |