--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/inc/pbencryptor.h	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,388 @@
+/*
+* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* ** IMPORTANT ** PublishedPartner API's in this file are published to 3rd party developers via the 
+* Symbian website. Changes to these API's should be treated as PublishedAll API changes and the Security TA should be consulted.
+*
+*/
+
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#ifndef __PBENCRYPTOR_H__
+#define __PBENCRYPTOR_H__
+
+#include <pbe.h>
+#include <padding.h>
+#include <msymmetriccipher.h>
+
+/**
+ * Implements the password based encryption of elements.
+ *
+ * @see CPBEncryptElement
+ * @since v7.0s
+ */
+class CPBEncryptorElement : public CPBEncryptor
+	{
+public:
+	/**
+	 * Creates a new CPBEncryptorElement object from the specified cipher, 
+	 * key, and Initialization Vector (IV).
+	 *
+	 * @param aCipher	The encryption cipher
+	 * @param aKey		The encryption key
+	 * @param aIV		The Initialization Vector
+	 * @return			A pointer to the new CPBEncryptorElement object
+	 */
+	IMPORT_C static CPBEncryptorElement* NewL(TPBECipher aCipher, 
+		const TDesC8& aKey, const TDesC8& aIV);
+
+	/**
+	 * Creates a new CPBEncryptorElement object from the specified cipher, 
+	 * key, and IV.
+	 * 
+	 * Puts a pointer to the returned object onto the cleanup stack.
+	 *
+	 * @param aCipher	The encryption cipher
+	 * @param aKey		The encryption key
+	 * @param aIV		The Initialization Vector
+	 * @return			A pointer to the new CPBEncryptorElement object
+	 */
+	IMPORT_C static CPBEncryptorElement* NewLC(TPBECipher aCipher, 
+		const TDesC8& aKey, const TDesC8& aIV);
+
+	/** 
+	 * Transforms aInput into its encrypted form, aOutput.
+	 *
+	 * aOutput must have CPBEncryptorElement::MaxOutputLength() empty bytes remaining in its length. 
+	 *
+	 *	See the Cryptography api-guide documentation for an explanation of
+	 *	how buffering of data supplied to this function is handled.
+	 *
+	 * @param aInput	The plaintext.
+	 * @param aOutput	The ciphertext.
+	 */
+	void Process(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Transforms aInput into its encrypted form, aOutput, and applies a
+	 * padding scheme to ensure a block aligned result.
+	 *
+	 * aOutput must have CPBEncryptorElement::MaxFinalOutputLength() 
+	 * empty bytes remaining in its length. 
+	 *
+	 *	See the Cryptography api-guide documentation for an explanation of
+	 *	how buffering of data supplied to this function is handled.
+	 * 
+	 * @param aInput	The plaintext.
+	 * @param aOutput	The ciphertext.
+	 */
+	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Gets the maximum size of the output resulting from calling Process() with a
+	 * given input length.
+	 *
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxOutputLength(TUint aMaxInputLength) const;
+
+	/** 
+	 * Gets the maximum size of the output resulting from calling ProcessFinalL()
+	 * with a given input length.
+	 *
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					TInt The maximum output length in bytes.
+	 */
+	TInt MaxFinalOutputLength(TUint aMaxInputLength) const;
+
+	/** Destructor */
+	virtual ~CPBEncryptorElement();
+protected:
+	CPBEncryptorElement();
+	void ConstructL(TPBECipher aCipher, const TDesC8& aKey, const TDesC8& aIV);
+private:
+	CSymmetricCipher* iCipher;
+	};
+
+/**
+ * Implements the password based decryption of elements.
+ *
+ * @since v7.0s
+ */
+class CPBDecryptorElement : public CPBDecryptor
+	{
+public:
+	/**
+	 * Creates a new CPBDecryptorElement object from the specified cipher, 
+	 * key, and IV.
+	 *
+	 * @param aCipher	The decryption cipher
+	 * @param aKey		The decryption key
+	 * @param aIV		The Initialization Vector
+	 * @return			A pointer to the new CPBDecryptorElement object
+	 */
+	IMPORT_C static CPBDecryptorElement* NewL(const TPBECipher aCipher, 
+		const TDesC8& aKey, const TDesC8& aIV);
+	
+	/**
+	 * Creates a new CPBDecryptorElement object from the specified cipher, 
+	 * key, and IV.
+	 * 
+	 * Puts a pointer to the returned object onto the cleanup stack.
+	 *
+	 * @param aCipher	The decryption cipher
+	 * @param aKey		The decryption key
+	 * @param aIV		The Initialization Vector
+	 * @return			A pointer to the new CPBDecryptorElement object
+	 */
+	IMPORT_C static CPBDecryptorElement* NewLC(const TPBECipher aCipher, 
+		const TDesC8& aKey, const TDesC8& aIV);
+
+	/** 
+	 * Transforms aInput into its decrypted form, aOutput.
+	 *
+	 * aOutput must have CPBDecryptorElement::MaxOutputLength() empty bytes
+	 * remaining in its length. 
+	 *
+	 *	See the Cryptography api-guide documentation for an explanation of
+	 *	how buffering of data supplied to this function is handled.
+	 * 
+	 * @param aInput	The ciphertext.
+	 * @param aOutput	The plaintext.
+	 */
+	void Process(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Transforms aInput into its decrypted form, aOutput.
+	 *
+	 * aOutput must have CPBDecryptorElement::MaxFinalOutputLength() 
+	 * empty bytes remaining in its length. 
+	 * 
+	 * @param aInput	The ciphertext.
+	 * @param aOutput	The plaintext.
+	 */
+	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxOutputLength(TUint aMaxInputLength) const;
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxFinalOutputLength(TUint aMaxInputLength) const;
+
+	/** Destructor */
+	virtual ~CPBDecryptorElement();
+protected:
+	CPBDecryptorElement();
+	void ConstructL(const TPBECipher aCipher, const TDesC8& aKey, const TDesC8& aIV);
+private:
+	CSymmetricCipher* iCipher;
+	};
+
+/**
+ * Implements the password based encryption of multiple elements.
+ *
+ * @see CPBEncryptSet
+ * @since v7.0s
+ */
+class CPBEncryptorSet : public CPBEncryptor
+	{
+public:
+	/**
+	 * Creates a new CPBEncryptorSet object from the specified cipher and key,
+	 * and a random Initialization Vector (IV).
+	 *
+	 * @param aCipher	The encryption cipher
+	 * @param aKey		The encryption key
+	 * @return			A pointer to the new CPBEncryptorSet object
+	 */
+	IMPORT_C static CPBEncryptorSet* NewL(const TPBECipher aCipher, 
+		const TDesC8& aKey);
+
+	/**
+	 * Creates a new CPBEncryptorSet object from the specified cipher and key,
+	 * and a random IV.
+	 * 
+	 * Puts a pointer to the returned object onto the cleanup stack.
+	 *
+	 * @param aCipher	The encryption cipher
+	 * @param aKey		The encryption key
+	 * @return			A pointer to the new CPBEncryptorSet object
+	 */
+	IMPORT_C static CPBEncryptorSet* NewLC(const TPBECipher aCipher, 
+		const TDesC8& aKey);
+
+	/**
+	 * Resets the CPBEncryptorSet object back to its original state
+	 * and clears all its buffers.
+	 */
+	IMPORT_C void Reset(void);
+
+	/** 
+	 * Transforms aInput into its encrypted form, aOutput.
+	 *
+	 * aOutput must have CPBEncryptorSet::MaxOutputLength() empty bytes
+	 * remaining in its length. 
+	 *
+	 * @param aInput	The plaintext.
+	 * @param aOutput	The ciphertext.
+	 */
+	void Process(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Transforms aInput into its encrypted form, aOutput, and applies a
+	 * padding scheme to ensure a block aligned result.
+	 *
+	 * aOutput must have CPBEncryptorSet::MaxFinalOutputLength() 
+	 * empty bytes remaining in its length. 
+	 * 
+	 * @param aInput	The plaintext.
+	 * @param aOutput	The ciphertext.
+	 */
+	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxOutputLength(TUint aMaxInputLength) const;
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxFinalOutputLength(TUint aMaxInputLength) const;
+
+	/** Destructor */
+	virtual ~CPBEncryptorSet();
+protected:
+	CPBEncryptorSet();
+	void ConstructL(TPBECipher aCipher, const TDesC8& aKey);
+private:
+	CSymmetricCipher* iCipher;
+	HBufC8* iIV;
+	TBool iIVSent;
+	};
+
+
+/**
+ * Implements the password based decryption of multiple elements.
+ *
+ * @since v7.0s
+ */
+class CPBDecryptorSet : public CPBDecryptor
+	{
+public:
+	/**
+	 * Creates a new CPBDecryptorSet object from the specified cipher and key,
+	 * and a random IV.
+	 *
+	 * @param aCipher	The decryption cipher
+	 * @param aKey		The decryption key
+	 * @return			A pointer to the new CPBDecryptorSet object
+	 */
+	IMPORT_C static CPBDecryptorSet* NewL(const TPBECipher aCipher, 
+		const TDesC8& aKey);
+
+	/**
+	 * Creates a new CPBDecryptorSet object from the specified cipher and key,
+	 * and a random IV.
+	 * 
+	 * Puts a pointer to the returned object onto the cleanup stack.
+	 *
+	 * @param aCipher	The decryption cipher
+	 * @param aKey		The decryption key
+	 * @return			A pointer to the new CPBDecryptorSet object
+	 */
+	IMPORT_C static CPBDecryptorSet* NewLC(const TPBECipher aCipher, 
+		const TDesC8& aKey);
+
+	/**
+	 * Resets the CPBDecryptorSet object back to its original state
+	 * and clears all its buffers.
+	 */
+	IMPORT_C void Reset(void);
+
+	/** 
+	 * Transforms aInput into its decrypted form, aOutput.
+	 *
+	 * aOutput must have CPBDecryptorSet::MaxOutputLength() empty bytes 
+	 * remaining in its length. 
+	 *
+	 * @param aInput	The ciphertext.
+	 * @param aOutput	The plaintext.
+	 */
+	void Process(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Transforms aInput into its decrypted form, aOutput, and applies a
+	 * padding scheme to ensure a block aligned result.
+	 *
+	 * aOutput must have CPBDecryptorSet::MaxFinalOutputLength() 
+	 * empty bytes remaining in its length. 
+	 * 
+	 * @param aInput	The ciphertext.
+	 * @param aOutput	The plaintext.
+	 */
+	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxOutputLength(TUint aMaxInputLength) const;
+
+	/** 
+	 * Gets the maximum size of the output given a certain input length.
+	 * 
+	 * @param aMaxInputLength	The maximum input length in bytes.
+	 * @return					The maximum output length in bytes.
+	 */
+	TInt MaxFinalOutputLength(TUint aMaxInputLength) const;
+
+	/** Destructor */
+	virtual ~CPBDecryptorSet();
+protected:
+	CPBDecryptorSet();
+	void ConstructL(TPBECipher aCipher, const TDesC8& aKey, const TDesC8& aIV);
+private:
+	TPtrC8 ProcessIV(const TDesC8& aInput);
+private:
+	CSymmetricCipher* iCipher;
+	HBufC8* iIVBuf;
+	TBool iIVSent;
+	};
+
+#endif