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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 * |
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16 */ |
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17 |
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18 |
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19 #ifndef __SIGNERIMPL_H__ |
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20 #define __SIGNERIMPL_H__ |
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21 |
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22 /** |
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23 @file |
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24 @internalComponent |
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25 @released |
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26 */ |
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27 |
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28 #include <e32base.h> |
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29 #include <e32cmn.h> |
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30 #include <cryptospi/cryptospidef.h> |
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31 #include "signerplugin.h" |
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32 #include <padding.h> |
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33 |
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34 #include "common/inlines.h" |
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35 |
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36 /** |
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37 * Abstract base class for signer plug-ins. |
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38 */ |
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39 namespace SoftwareCrypto |
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40 { |
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41 using namespace CryptoSpi; |
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42 |
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43 NONSHARABLE_CLASS(CSignerImpl) : public CBase, public MSigner |
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44 { |
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45 public: |
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46 // Override MPlugin virtual functions |
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47 void Close(); |
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48 void Reset(); // Always call reset in super-class if you override this |
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49 TAny* GetExtension(TUid aExtensionId); |
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50 void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics); |
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51 // End of MPlugin |
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52 |
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53 // Override MSignatureBase virtual functions |
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54 virtual void SetPaddingModeL(TUid aPaddingMode); |
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55 virtual void SetKeyL(const CKey& aPrivateKey); |
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56 virtual TInt GetMaximumInputLengthL() const; |
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57 virtual TInt GetMaximumOutputLengthL() const; |
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58 // End of MSignatureBase |
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59 |
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60 /// Destructor |
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61 ~CSignerImpl(); |
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62 |
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63 protected: |
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64 /// Constructor |
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65 CSignerImpl(); |
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66 |
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67 /** |
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68 Second phase of construction |
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69 @param aKey The signing key |
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70 */ |
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71 virtual void ConstructL(const CKey& aKey); |
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72 |
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73 /** |
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74 Helper function implemented by concrete cipher sub-class that allows |
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75 GetCharacteristicsL to return the correct characteristics object. |
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76 @return The implemention uid |
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77 */ |
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78 virtual TUid ImplementationUid() const = 0; |
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79 |
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80 /** |
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81 Store the signing key. The key length is also checked to meet export restrictions and |
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82 to ensure that it is appropriate for the cipher. |
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83 @param aKey The key |
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84 */ |
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85 virtual void DoSetKeyL(const CKey& aKey); |
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86 |
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87 protected: |
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88 /// the key, extracted from a CKey object |
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89 CKey* iKey; |
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90 |
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91 private: |
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92 }; |
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93 } |
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94 |
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95 #endif // __SIGNERIMPL_H__ |