|
sl@0
|
1 |
/*
|
|
sl@0
|
2 |
* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
sl@0
|
3 |
* All rights reserved.
|
|
sl@0
|
4 |
* This component and the accompanying materials are made available
|
|
sl@0
|
5 |
* under the terms of the License "Eclipse Public License v1.0"
|
|
sl@0
|
6 |
* which accompanies this distribution, and is available
|
|
sl@0
|
7 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
sl@0
|
8 |
*
|
|
sl@0
|
9 |
* Initial Contributors:
|
|
sl@0
|
10 |
* Nokia Corporation - initial contribution.
|
|
sl@0
|
11 |
*
|
|
sl@0
|
12 |
* Contributors:
|
|
sl@0
|
13 |
*
|
|
sl@0
|
14 |
* Description:
|
|
sl@0
|
15 |
*
|
|
sl@0
|
16 |
*/
|
|
sl@0
|
17 |
|
|
sl@0
|
18 |
|
|
sl@0
|
19 |
#ifndef __CBCMODESHIM_H__
|
|
sl@0
|
20 |
#define __CBCMODESHIM_H__
|
|
sl@0
|
21 |
|
|
sl@0
|
22 |
#include <cbcmode.h>
|
|
sl@0
|
23 |
|
|
sl@0
|
24 |
/**
|
|
sl@0
|
25 |
@file
|
|
sl@0
|
26 |
@internalComponent
|
|
sl@0
|
27 |
@released
|
|
sl@0
|
28 |
*/
|
|
sl@0
|
29 |
|
|
sl@0
|
30 |
namespace CryptoSpi
|
|
sl@0
|
31 |
{
|
|
sl@0
|
32 |
class CSymmetricCipher;
|
|
sl@0
|
33 |
}
|
|
sl@0
|
34 |
|
|
sl@0
|
35 |
/**
|
|
sl@0
|
36 |
CBC mode encryptor shim class that delegates all work to CModeCBCEncryptor.
|
|
sl@0
|
37 |
This should only be instantiated by CModeCBCEncryptor::NewLC
|
|
sl@0
|
38 |
*/
|
|
sl@0
|
39 |
NONSHARABLE_CLASS(CModeCBCEncryptorShim) : public CModeCBCEncryptor
|
|
sl@0
|
40 |
{
|
|
sl@0
|
41 |
public:
|
|
sl@0
|
42 |
/**
|
|
sl@0
|
43 |
Creates a new CModeCBCEncryptorShim. If the block transfer
|
|
sl@0
|
44 |
@param aBT A pointer to the block transform object.
|
|
sl@0
|
45 |
@param aIV The initialisation vector to use.
|
|
sl@0
|
46 |
@return A pointer to a CModeCBCEncryptorShim instance or NULL if the block transform
|
|
sl@0
|
47 |
does not support SPI or the SPI plug-in does not support CBC mode
|
|
sl@0
|
48 |
*/
|
|
sl@0
|
49 |
static CModeCBCEncryptorShim* NewL(CBlockTransformation* aBT, const TDesC8& aIV);
|
|
sl@0
|
50 |
|
|
sl@0
|
51 |
// From CBase
|
|
sl@0
|
52 |
TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
|
|
sl@0
|
53 |
|
|
sl@0
|
54 |
// From CBlockTransformation
|
|
sl@0
|
55 |
void Reset();
|
|
sl@0
|
56 |
TInt BlockSize() const;
|
|
sl@0
|
57 |
TInt KeySize() const;
|
|
sl@0
|
58 |
void Transform(TDes8& aBlock);
|
|
sl@0
|
59 |
|
|
sl@0
|
60 |
// From CBlockChainingMode
|
|
sl@0
|
61 |
void SetIV(const TDesC8& aIv);
|
|
sl@0
|
62 |
|
|
sl@0
|
63 |
private:
|
|
sl@0
|
64 |
/// Constructor
|
|
sl@0
|
65 |
CModeCBCEncryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
|
|
sl@0
|
66 |
|
|
sl@0
|
67 |
// Just invokes ContructL in super-class
|
|
sl@0
|
68 |
void ConstructL(CBlockTransformation* aBT, const TDesC8& aIv);
|
|
sl@0
|
69 |
|
|
sl@0
|
70 |
// owned by block transform - iBT
|
|
sl@0
|
71 |
CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
|
|
sl@0
|
72 |
};
|
|
sl@0
|
73 |
|
|
sl@0
|
74 |
/**
|
|
sl@0
|
75 |
CBC mode decryptor shim class that delegates all work to CModeCBCDecryptor.
|
|
sl@0
|
76 |
This should only be instantiated by CModeCBCDecryptor::NewLC
|
|
sl@0
|
77 |
*/
|
|
sl@0
|
78 |
NONSHARABLE_CLASS(CModeCBCDecryptorShim) : public CModeCBCDecryptor
|
|
sl@0
|
79 |
{
|
|
sl@0
|
80 |
public:
|
|
sl@0
|
81 |
/**
|
|
sl@0
|
82 |
Creates a new CModeCBCEncryptorShim.
|
|
sl@0
|
83 |
@param aBT A pointer to the block transform object.
|
|
sl@0
|
84 |
@param aIV The initialisation vector to use.
|
|
sl@0
|
85 |
@return A pointer to a CModeCBCDecryptorShim instance or NULL if the block transform
|
|
sl@0
|
86 |
does not support SPI or the SPI plug-in does not support CBC mode
|
|
sl@0
|
87 |
*/
|
|
sl@0
|
88 |
static CModeCBCDecryptorShim* NewL(CBlockTransformation* aBT, const TDesC8& aIV);
|
|
sl@0
|
89 |
|
|
sl@0
|
90 |
// From CBase
|
|
sl@0
|
91 |
TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
|
|
sl@0
|
92 |
|
|
sl@0
|
93 |
// From CBlockTransformation
|
|
sl@0
|
94 |
void Reset();
|
|
sl@0
|
95 |
TInt BlockSize() const;
|
|
sl@0
|
96 |
TInt KeySize() const;
|
|
sl@0
|
97 |
void Transform(TDes8& aBlock);
|
|
sl@0
|
98 |
|
|
sl@0
|
99 |
// From CBlockChainingMode
|
|
sl@0
|
100 |
void SetIV(const TDesC8& aIv);
|
|
sl@0
|
101 |
|
|
sl@0
|
102 |
private:
|
|
sl@0
|
103 |
/// Constructor
|
|
sl@0
|
104 |
CModeCBCDecryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
|
|
sl@0
|
105 |
|
|
sl@0
|
106 |
// Just invokes ContructL in super-class
|
|
sl@0
|
107 |
void ConstructL(CBlockTransformation* aBT, const TDesC8& aIv);
|
|
sl@0
|
108 |
|
|
sl@0
|
109 |
// owned by block transform - iBT
|
|
sl@0
|
110 |
CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
|
|
sl@0
|
111 |
};
|
|
sl@0
|
112 |
|
|
sl@0
|
113 |
#endif // __CBCMODESHIM_H__
|