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1 /* |
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2 * Copyright (c) 2006-2009 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 * DSA shim classes definition |
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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 @internalComponent |
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23 @released |
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24 */ |
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25 |
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26 #ifndef __DSASHIM_H__ |
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27 #define __DSASHIM_H__ |
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28 |
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29 #include <asymmetric.h> |
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30 |
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31 namespace CryptoSpi |
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32 { |
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33 class CSigner; |
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34 class CVerifier; |
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35 class CKey; |
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36 } |
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37 |
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38 NONSHARABLE_CLASS(CDsaSignerShim) : public CDSASigner |
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39 { |
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40 public: |
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41 /** |
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42 Creates an CDsaSignerShim object which has the same interface |
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43 as CDSASigner but delegates all work to a Crypto SPI plug-in. |
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44 |
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45 @param aKey The signing key |
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46 @return A pointer to a CDsaSignerShim instance |
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47 */ |
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48 static CDsaSignerShim* NewL(const CDSAPrivateKey& aKey); |
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49 |
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50 /** |
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51 Creates an CDsaSignerShim object which has the same interface |
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52 as CDSASigner but delegates all work to a Crypto SPI plug-in. |
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53 |
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54 A pointer to the new object is placed on the cleanup stack |
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55 |
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56 @param aKey The signing key |
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57 @return A pointer to a CDsaSignerShim instance |
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58 */ |
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59 static CDsaSignerShim* NewLC(const CDSAPrivateKey& aKey); |
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60 |
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61 /** |
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62 Digitally signs the specified input message |
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63 Note that in order to be interoperable and compliant with the DSS, aInput |
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64 must be the result of a SHA-1 hash. |
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65 |
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66 @param aInput A SHA-1 hash of the message to sign |
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67 @return A pointer to a new CSignature object |
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68 @panic ECryptoPanicInputTooLarge If aInput is larger than MaxInputLength(), |
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69 which is likely to happen if the caller |
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70 has passed in something that has not been hashed. |
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71 */ |
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72 virtual CDSASignature* SignL(const TDesC8& aInput) const; |
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73 |
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74 //From MSignatureSystem |
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75 virtual TInt MaxInputLength() const; |
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76 |
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77 /// Destructor |
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78 ~CDsaSignerShim(); |
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79 |
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80 private: |
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81 /// Constructor |
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82 CDsaSignerShim(const CDSAPrivateKey& aKey); |
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83 void ConstructL(const CDSAPrivateKey& aKey); |
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84 |
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85 private: |
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86 /// SPI delegate |
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87 CryptoSpi::CSigner* iSignerImpl; |
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88 |
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89 /// SPI requires all key to passed as key-objects |
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90 CryptoSpi::CKey* iKey; |
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91 }; |
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92 |
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93 NONSHARABLE_CLASS(CDsaVerifierShim) : public CDSAVerifier |
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94 { |
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95 public: |
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96 /** |
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97 Creates an CDsaVerifierShim object which has the same interface |
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98 as CDSAVerifier but delegates all work to a Crypto SPI plug-in. |
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99 |
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100 @param aKey The verification key |
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101 @return A pointer to a CDsaVerifierShim instance |
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102 */ |
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103 static CDsaVerifierShim* NewL(const CDSAPublicKey& aKey); |
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104 |
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105 /** |
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106 Creates an CDsaVerifierShim object which has the same interface |
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107 as CDSAVerifier but delegates all work to a Crypto SPI plug-in. |
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108 |
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109 A pointer to the new object is placed on the cleanup stack |
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110 |
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111 @param aKey The verification key |
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112 @return A pointer to a CDsaVerifierShim instance |
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113 */ |
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114 static CDsaVerifierShim* NewLC(const CDSAPublicKey& aKey); |
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115 |
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116 //From CVerifier |
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117 virtual TBool VerifyL(const TDesC8& aInput, const CDSASignature& aSignature) const; |
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118 |
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119 //From MSignatureSystem |
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120 virtual TInt MaxInputLength() const; |
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121 |
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122 // Destructor |
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123 ~CDsaVerifierShim(); |
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124 |
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125 private: |
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126 // Constructor |
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127 CDsaVerifierShim(const CDSAPublicKey& aKey); |
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128 void ConstructL(const CDSAPublicKey& aKey); |
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129 |
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130 private: |
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131 /// SPI delegate |
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132 CryptoSpi::CVerifier* iVerifierImpl; |
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133 |
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134 /// SPI requires all key to passed as key-objects |
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135 CryptoSpi::CKey* iKey; |
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136 }; |
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137 |
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138 #endif // __DSASHIM_H__ |