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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 * RSA 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 __RSASHIM_H__ |
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27 #define __RSASHIM_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 CAsymmetricCipher; |
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34 class CKey; |
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35 class CSigner; |
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36 class CVerifier; |
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37 } |
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38 |
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39 NONSHARABLE_CLASS(CRSAPKCS1v15EncryptorShim) : public CRSAPKCS1v15Encryptor |
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40 { |
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41 public: |
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42 /** |
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43 Creates an RSAPKCS1v15EncryptorShim object which has the same interface |
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44 as CRSAPKCS1v15Encryptor but delegates all work to a Crypto SPI plug-in. |
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45 |
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46 @param aKey The encryption key |
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47 @return A pointer to a CRSAPKCS1v15EncryptorShim instance |
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48 */ |
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49 static CRSAPKCS1v15EncryptorShim* NewL(const CRSAPublicKey& aKey); |
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50 |
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51 /** |
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52 Creates an RSAPKCS1v15EncryptorShim object which has the same interface |
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53 as CRSAPKCS1v15Encryptor but delegates all work to a Crypto SPI plug-in. |
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54 |
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55 A pointer to the new object is placed on the cleanup stack |
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56 |
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57 @param aKey The encryption key |
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58 @return A pointer to a CRSAPKCS1v15EncryptorShim instance |
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59 */ |
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60 static CRSAPKCS1v15EncryptorShim* NewLC(const CRSAPublicKey& aKey); |
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61 |
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62 // From CRSAPKCS1v15Encryptor |
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63 void EncryptL(const TDesC8& aInput, TDes8& aOutput) const; |
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64 TInt MaxInputLength(void) const; |
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65 TInt MaxOutputLength(void) const; |
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66 |
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67 /// Destructor |
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68 ~CRSAPKCS1v15EncryptorShim(); |
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69 |
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70 private: |
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71 /// Constructor |
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72 CRSAPKCS1v15EncryptorShim(const CRSAPublicKey& aKey); |
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73 void ConstructL(const CRSAPublicKey& aKey); |
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74 |
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75 private: |
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76 /// SPI delegate |
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77 CryptoSpi::CAsymmetricCipher* iAsymmetricCipherImpl; |
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78 |
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79 /// SPI requires all key to passed as key-objects |
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80 CryptoSpi::CKey* iKey; |
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81 }; |
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82 |
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83 NONSHARABLE_CLASS(CRSAPKCS1v15DecryptorShim) : public CRSAPKCS1v15Decryptor |
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84 { |
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85 public: |
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86 /** |
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87 Creates an RSAPKCS1v15DecryptorShim object which has the same interface |
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88 as CRSAPKCS1v15Decryptor but delegates all work to a Crypto SPI plug-in. |
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89 |
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90 @param aKey The decryption key |
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91 @return A pointer to a CRSAPKCS1v15DecryptorShim instance |
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92 */ |
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93 static CRSAPKCS1v15DecryptorShim* NewL(const CRSAPrivateKey& aKey); |
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94 |
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95 /** |
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96 Creates an RSAPKCS1v15EncryptorShim object which has the same interface |
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97 as CRSAPKCS1v15Decryptor but delegates all work to a Crypto SPI plug-in. |
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98 |
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99 A pointer to the new object is placed on the cleanup stack |
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100 |
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101 @param aKey The decryption key |
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102 @return A pointer to a CRSAPKCS1v15DecryptorShim instance |
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103 */ |
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104 static CRSAPKCS1v15DecryptorShim* NewLC(const CRSAPrivateKey& aKey); |
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105 |
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106 // From CRSAPKCS1v15Decryptor |
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107 void DecryptL(const TDesC8& aInput, TDes8& aOutput) const; |
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108 TInt MaxInputLength(void) const; |
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109 TInt MaxOutputLength(void) const; |
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110 |
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111 /// Destructor |
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112 ~CRSAPKCS1v15DecryptorShim(); |
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113 |
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114 private: |
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115 /// Constructor |
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116 CRSAPKCS1v15DecryptorShim(const CRSAPrivateKey& aKey); |
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117 void ConstructL(const CRSAPrivateKey& aKey); |
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118 |
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119 private: |
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120 /// SPI delegate |
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121 CryptoSpi::CAsymmetricCipher* iAsymmetricCipherImpl; |
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122 |
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123 /// SPI requires all key to passed as key-objects |
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124 CryptoSpi::CKey* iKey; |
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125 }; |
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126 |
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127 NONSHARABLE_CLASS(CRSAPKCS1v15SignerShim) : public CRSAPKCS1v15Signer |
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128 { |
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129 public: |
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130 /** |
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131 Creates a new CRSAPKCS1v15SignerShim object which has the same interface |
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132 as CRSAPKCS1v15Signer but delegates all work to a Crypto SPI plug-in. |
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133 |
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134 @param aKey The RSA private key to be used for signing |
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135 @return A pointer to a CRSAPKCS1v15SignerShim instance |
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136 @leave KErrKeySize If the key length is too small |
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137 */ |
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138 static CRSAPKCS1v15SignerShim* NewL(const CRSAPrivateKey& aKey); |
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139 |
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140 /** |
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141 Creates a new CRSAPKCS1v15SignerShim object which has the same interface |
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142 as CRSAPKCS1v15Signer but delegates all work to a Crypto SPI plug-in. |
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143 |
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144 @param aKey The RSA private key to be used for signing |
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145 @return A pointer to a CRSAPKCS1v15SignerShim instance |
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146 @leave KErrKeySize If the key length is too small |
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147 */ |
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148 static CRSAPKCS1v15SignerShim* NewLC(const CRSAPrivateKey& aKey); |
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149 |
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150 // From CRSAPKCS1v15Signer |
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151 virtual CRSASignature* SignL(const TDesC8& aInput) const; |
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152 virtual TInt MaxInputLength(void) const; |
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153 virtual TInt MaxOutputLength(void) const; |
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154 /** The destructor frees all resources owned by the object, prior to its destruction.*/ |
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155 ~CRSAPKCS1v15SignerShim(void); |
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156 protected: |
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157 |
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158 CRSAPKCS1v15SignerShim(const CRSAPrivateKey& aKey); |
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159 void ConstructL(const CRSAPrivateKey& aKey); |
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160 |
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161 protected: |
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162 /// SPI delegate |
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163 CryptoSpi::CSigner* iSignerImpl; |
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164 |
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165 /// SPI requires all key to passed as key-objects |
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166 CryptoSpi::CKey* iKey; |
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167 private: |
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168 CRSAPKCS1v15SignerShim(const CRSAPKCS1v15SignerShim&); |
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169 CRSAPKCS1v15SignerShim& operator=(const CRSAPKCS1v15SignerShim&); |
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170 }; |
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171 |
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172 /** |
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173 * This class verifies RSA signatures given a message and its supposed |
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174 * signature. It follows the RSA PKCS#1 v1.5 with PKCS#1 v1.5 padding specification |
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175 * with the following exception: the VerifyL() function does <b>not</b> hash or |
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176 * in any way manipulate the input data before checking. Thus in order to verify |
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177 * RSA signatures in PKCS#1 v1.5 format, the input data needs to follow PKCS#1 v1.5 |
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178 * specification, i.e. be ASN.1 encoded and prefixed by ASN.1 encoded digestId. |
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179 * |
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180 * @internalComponent |
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181 * @released |
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182 */ |
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183 NONSHARABLE_CLASS(CRSAPKCS1v15VerifierShim) : public CRSAPKCS1v15Verifier |
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184 { |
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185 public: |
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186 /** |
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187 @internalComponent |
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188 |
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189 Creates a new CRSAPKCS1v15VerifierShim object which has the same interface |
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190 as CRSAPKCS1v15Verifier but delegates all work to a Crypto SPI plug-in. |
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191 |
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192 @param aKey The RSA public key to be used for verifying |
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193 @return A pointer to a CRSAPKCS1v15VerifierShim instance |
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194 @leave KErrKeySize If the key length is too small |
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195 */ |
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196 static CRSAPKCS1v15VerifierShim* NewL(const CRSAPublicKey& aKey); |
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197 |
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198 /** |
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199 @internalComponent |
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200 |
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201 Creates a new CRSAPKCS1v15VerifierShim object which has the same interface |
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202 as CRSAPKCS1v15Verifier but delegates all work to a Crypto SPI plug-in. |
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203 |
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204 The returned pointer is put onto the cleanup stack. |
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205 |
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206 @param aKey The RSA public key to be used for verifying |
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207 @return A pointer to a CRSAPKCS1v15VerifierShim instance |
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208 |
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209 @leave KErrKeySize If the key length is too small |
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210 */ |
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211 static CRSAPKCS1v15VerifierShim* NewLC(const CRSAPublicKey& aKey); |
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212 |
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213 // CRSAPKCS1v15Verifier |
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214 virtual TInt MaxInputLength(void) const; |
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215 virtual TInt MaxOutputLength(void) const; |
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216 |
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217 // RSAVerifier |
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218 virtual TBool VerifyL(const TDesC8& aInput, const CRSASignature& aSignature) const; |
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219 virtual HBufC8* InverseSignLC(const CRSASignature& aSignature) const; |
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220 |
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221 /** The destructor frees all resources owned by the object, prior to its destruction. */ |
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222 virtual ~CRSAPKCS1v15VerifierShim(void); |
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223 protected: |
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224 CRSAPKCS1v15VerifierShim(const CRSAPublicKey& aKey); |
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225 void ConstructL(const CRSAPublicKey& aKey); |
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226 |
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227 protected: |
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228 /// SPI delegate |
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229 CryptoSpi::CVerifier* iVerifierImpl; |
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230 |
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231 /// SPI requires all key to passed as key-objects |
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232 CryptoSpi::CKey* iKey; |
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233 private: |
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234 CRSAPKCS1v15VerifierShim(const CRSAPKCS1v15VerifierShim&); |
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235 CRSAPKCS1v15VerifierShim& operator=(const CRSAPKCS1v15VerifierShim&); |
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236 }; |
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237 |
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238 #endif // __RSASHIM_H__ |