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1 /* |
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2 * Copyright (c) 2002-2009 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 * ** IMPORTANT ** PublishedPartner API's in this file are published to 3rd party developers via the |
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16 * Symbian website. Changes to these API's should be treated as PublishedAll API changes and the Security TA should be consulted. |
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17 * CNullCipher class implementation |
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18 * |
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19 */ |
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20 |
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21 |
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22 /** |
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23 @file |
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24 @publishedPartner |
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25 @released |
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26 */ |
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27 |
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28 #ifndef __NULLCIPHER_H__ |
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29 #define __NULLCIPHER_H__ |
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30 |
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31 #include <streamcipher.h> |
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32 |
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33 /** |
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34 * Stream cipher that does no encryption or decryption, but simply returns the |
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35 * data given to it. |
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36 * From CBlockTransformation |
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37 * |
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38 */ |
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39 class CNullCipher : public CStreamCipher |
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40 { |
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41 public: |
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42 /** |
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43 * Creates a new CNullCipher object. |
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44 * |
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45 * @return A pointer to a new CNullCipher object |
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46 */ |
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47 IMPORT_C static CNullCipher* NewL(void); |
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48 |
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49 /** |
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50 * Creates a new CNullCipher object. |
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51 * |
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52 * The returned pointer is put onto the cleanup stack. |
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53 * |
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54 * @return A pointer to a new CNullCipher object |
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55 */ |
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56 IMPORT_C static CNullCipher* NewLC(void); |
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57 virtual void Reset(void); |
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58 virtual TInt KeySize(void) const; |
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59 protected: |
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60 virtual void DoProcess(TDes8& aData); |
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61 /** |
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62 * @internalAll |
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63 */ |
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64 CNullCipher(); |
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65 }; |
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66 |
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67 #endif // __NULLCIPHER_H__ |