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1 /* |
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2 * Copyright (c) 2008-2009 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 * mac plugin 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 @internalComponent |
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23 @released |
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24 */ |
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25 |
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26 #ifndef __CRYPTOAPI_SOFTWAREMACIMPL_H__ |
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27 #define __CRYPTOAPI_SOFTWAREMACIMPL_H__ |
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28 |
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29 #include <cryptospi/macplugin.h> |
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30 #include "cryptosymmetriccipherapi.h" |
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31 #include "softwarehashbase.h" |
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32 #include "keys.h" |
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33 #include "cmacimpl.h" |
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34 #include "hmacimpl.h" |
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35 |
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36 |
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37 namespace SoftwareCrypto |
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38 { |
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39 using namespace CryptoSpi; |
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40 |
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41 NONSHARABLE_CLASS(CMacImpl) : public CBase, public MMac |
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42 { |
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43 public: |
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44 /** |
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45 * MAC implementation instance creation methods |
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46 */ |
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47 static CMacImpl* NewL(const CKey& aKey, |
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48 const TUid aImplementationId, |
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49 const CCryptoParams* aAlgorithmParams); |
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50 |
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51 /** |
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52 * Methods from MPlugin: Base class for all the plugins |
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53 */ |
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54 void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics); |
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55 const CExtendedCharacteristics* GetExtendedCharacteristicsL(); |
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56 TAny* GetExtension(TUid aExtensionId); |
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57 void Reset(); |
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58 // this deletes the instance of this class. The method is called at the user side |
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59 // indirectly through the MPlugin pointer instance. |
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60 void Close(); |
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61 |
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62 /** |
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63 * From MMac: MAC interface (Software based) |
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64 */ |
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65 TPtrC8 MacL(const TDesC8& aMessage); |
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66 void UpdateL(const TDesC8& aMessage); |
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67 TPtrC8 FinalL(const TDesC8& aMessage); |
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68 void ReInitialiseAndSetKeyL(const CKey& aKey); |
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69 MMac* ReplicateL(); |
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70 MMac* CopyL(); |
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71 |
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72 private: |
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73 |
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74 /** |
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75 * Enumerators to recognize the type of algorithm used for MAC |
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76 */ |
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77 enum TMacBase {EHashBased, ECipherBased}; |
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78 |
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79 |
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80 /** |
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81 * Constructors and Destructors |
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82 */ |
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83 ~CMacImpl(); |
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84 CMacImpl(); |
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85 CMacImpl(const CMacImpl& aMacImpl); |
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86 |
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87 /** |
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88 * Initialize the 'iHmacImpl' and 'iCipherImpl' instances. |
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89 */ |
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90 void ConstructL(const CKey& aKey, const TUid aImplementationId,const CCryptoParams* aAlgorithmParams); |
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91 |
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92 /** |
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93 * This will return the Uid of the specific implementation |
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94 * used for the algorithm. |
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95 */ |
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96 TUid ImplementationUid() const; |
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97 |
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98 private: |
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99 TUid iImplementationUid; |
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100 TMacBase iBase; |
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101 CKey* iKey; |
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102 |
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103 /** |
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104 * The hash based MAC implementation. This is software based implementation. |
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105 */ |
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106 CHMacImpl* iHmacImpl; |
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107 |
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108 /** |
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109 * The symmetric cipher based MAC implementation. |
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110 */ |
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111 CCMacImpl* iCmacImpl; |
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112 }; |
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113 } |
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114 |
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115 #endif // __CRYPTOAPI_SOFTWAREMACIMPL_H__ |