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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 * |
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16 */ |
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17 |
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18 |
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19 #include "dsakeypairshim.h" |
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20 #include "cryptokeypairgeneratorapi.h" |
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21 #include "keypair.h" |
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22 #include <cryptospi/cryptoparams.h> |
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23 #include <cryptospi/cryptospidef.h> |
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24 |
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25 |
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26 using namespace CryptoSpi; |
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27 |
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28 |
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29 /* CDSAKeyPair */ |
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30 CDSAKeyPairShim* CDSAKeyPairShim::NewLC(TUint aKeyBits) |
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31 { |
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32 CDSAKeyPairShim* self = new(ELeave) CDSAKeyPairShim(); |
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33 CleanupStack::PushL(self); |
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34 self->ConstructL(aKeyBits); |
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35 return self; |
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36 } |
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37 |
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38 CDSAKeyPairShim::~CDSAKeyPairShim() |
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39 { |
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40 } |
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41 |
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42 CDSAKeyPairShim::CDSAKeyPairShim() |
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43 { |
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44 } |
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45 |
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46 void CDSAKeyPairShim::ConstructL(TUint aKeyBits) |
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47 { |
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48 CKeyPairGenerator* keyPairGeneratorImpl=NULL; |
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49 CKeyPairGeneratorFactory::CreateKeyPairGeneratorL( |
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50 keyPairGeneratorImpl, |
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51 KDSAKeyPairGeneratorUid, |
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52 NULL); |
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53 CleanupStack::PushL(keyPairGeneratorImpl); |
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54 |
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55 |
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56 |
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57 |
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58 // put the DSA parameters into an array |
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59 CCryptoParams* keyParameters = CCryptoParams::NewLC(); |
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60 |
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61 // call the api to create an DSA key pair |
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62 CKeyPair* keyPair = 0; |
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63 keyPairGeneratorImpl->GenerateKeyPairL(aKeyBits, *keyParameters, keyPair); |
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64 CleanupStack::PushL(keyPair); |
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65 |
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66 //Just to keep BC |
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67 if (keyParameters->IsPresent(KDsaKeyGenerationSeedUid)) |
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68 { |
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69 const TDesC8& seed = keyParameters->GetTDesC8L(KDsaKeyGenerationSeedUid); |
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70 TInt counter=keyParameters->GetTIntL(KDsaKeyGenerationCounterUid); |
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71 iPrimeCertificate=CDSAPrimeCertificate::NewL(seed, counter); |
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72 } |
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73 |
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74 // |
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75 //for compatibility convert the CKeyPair to CDSAPrivateKey and CDSAPublicKey |
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76 // |
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77 // the public key becomes the owner of P,Q,G,Y |
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78 const CKey& publicKey = keyPair->PublicKey(); |
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79 RInteger P = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterPUid)); |
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80 CleanupClosePushL(P); |
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81 |
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82 RInteger Q = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterQUid)); |
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83 CleanupClosePushL(Q); |
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84 |
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85 RInteger G = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterGUid)); |
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86 CleanupClosePushL(G); |
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87 |
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88 RInteger Y = RInteger::NewL(publicKey.GetBigIntL(KDsaKeyParameterYUid)); |
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89 CleanupClosePushL(Y); |
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90 |
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91 iPublic = CDSAPublicKey::NewL(P, Q, G, Y); |
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92 CleanupStack::Pop(4, &P); //Y,G,Q,P |
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93 |
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94 // the private key becomes the owner of P1,Q1,G1,X |
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95 const CKey& privateKey = keyPair->PrivateKey(); |
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96 RInteger P1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterPUid)); |
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97 CleanupClosePushL(P1); |
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98 |
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99 RInteger Q1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterQUid)); |
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100 CleanupClosePushL(Q1); |
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101 |
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102 RInteger G1 = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterGUid)); |
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103 CleanupClosePushL(G1); |
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104 |
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105 RInteger X = RInteger::NewL(privateKey.GetBigIntL(KDsaKeyParameterXUid)); |
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106 CleanupClosePushL(X); |
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107 |
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108 iPrivate = CDSAPrivateKey::NewL(P1, Q1, G1, X); |
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109 CleanupStack::Pop(4, &P1); //X,G1,Q1,P1 |
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110 |
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111 CleanupStack::PopAndDestroy(3, keyPairGeneratorImpl); // keyPair, keyParameters, keyPairGeneratorImpl |
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112 } |