/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  Implementation of STSCipher

 *

*/

#include "stscipher.h"

#include "logger.h"

namespace java

{

namespace satsa

{

STSCipher::STSCipher():mTransformation(0), mIV(0), miv_length(0), mKey(0),

        mKey_length(0)

{

}

STSCipher::~STSCipher()

{

    delete mTransformation;

    mTransformation = 0;

    delete mIV;

    mIV = 0;

    delete mKey;

    mKey = 0;

}

// Sets the transformation for this cipher object.

void STSCipher::SetTransformation(STSTransformation* aTransformation)

{

    LOG(ESATSA, EInfo, "STSCipher::SetTransformation+");

    // Delete existing transformation object.

    delete mTransformation;

    // Take the ownership.

    mTransformation = aTransformation;

    LOG(ESATSA, EInfo, "STSCipher::SetTransformation--");

}

// Initializes the cipher.

jint STSCipher::Init(JNIEnv* aJni, const TCipherMode aMode,

                     const jstring aKeyAlgorithm, const jstring aKeyFormat,

                     const jbyteArray aKeyEncoded)

{

    LOG(ESATSA, EInfo, "STSCipher::Init+");

    // Function return value

    jint retVal = 0;

    // Call the ciphers specific initialize function.

    retVal = DoInit(aJni, aMode, aKeyAlgorithm, aKeyFormat, aKeyEncoded, NULL);

    if (retVal == 0)

    {

        // Set the mode of the initialized cipher

        mMode = aMode;

    } // end if

    // return the return value

    LOG(ESATSA, EInfo, "STSCipher::Init--");

    return retVal;

}

//Initialize the cipher

jint STSCipher::Init(JNIEnv* aJni, const TCipherMode aMode,

                     const jstring aKeyAlgorithm, const jstring aKeyFormat,

                     const jbyteArray aKeyEncoded, const jbyteArray aParams)

{

    LOG(ESATSA, EInfo, "STSCipher::Init with Params+");

    // Function return value

    jint retVal = 0;

    // Call the ciphers specific initialize function.

    retVal = DoInit(aJni, aMode, aKeyAlgorithm, aKeyFormat, aKeyEncoded,

                    aParams);

    if (retVal == 0)

    {

        // Set the mode of the initialized cipher

        mMode = aMode;

    } // end if

    // return the return value

    LOG(ESATSA, EInfo, "STSCipher::Init with Params--");

    return retVal;

}

// Function to retreive the IV of the cipher.

const unsigned char* STSCipher::IV(int* length) const

{

    LOG(ESATSA, EInfo, "STSCipher::IV+");

    // return IV if it is set or generated, otherwise return NULL.

    if (length)

    {

        *length = miv_length;

    }

    LOG(ESATSA, EInfo, "STSCipher::IV--");

    return mIV;

}

} // namespace satsa

} // namespace java