1 /*

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

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Implementation of STSCipher

    15  *

    16 */

    17 

    18 

    19 

    20 #include "stscipher.h"

    21 #include "logger.h"

    22 

    23 namespace java

    24 {

    25 namespace satsa

    26 {

    27 

    28 

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

    30         mKey_length(0)

    31 {

    32 

    33 }

    34 

    35 

    36 STSCipher::~STSCipher()

    37 {

    38     delete mTransformation;

    39     mTransformation = 0;

    40     delete mIV;

    41     mIV = 0;

    42     delete mKey;

    43     mKey = 0;

    44 }

    45 

    46 // Sets the transformation for this cipher object.

    47 void STSCipher::SetTransformation(STSTransformation* aTransformation)

    48 {

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

    50     // Delete existing transformation object.

    51     delete mTransformation;

    52 

    53     // Take the ownership.

    54     mTransformation = aTransformation;

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

    56 }

    57 

    58 // Initializes the cipher.

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

    60                      const jstring aKeyAlgorithm, const jstring aKeyFormat,

    61                      const jbyteArray aKeyEncoded)

    62 {

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

    64     // Function return value

    65     jint retVal = 0;

    66 

    67     // Call the ciphers specific initialize function.

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

    69 

    70     if (retVal == 0)

    71     {

    72         // Set the mode of the initialized cipher

    73         mMode = aMode;

    74     } // end if

    75 

    76     // return the return value

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

    78     return retVal;

    79 }

    80 

    81 //Initialize the cipher

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

    83                      const jstring aKeyAlgorithm, const jstring aKeyFormat,

    84                      const jbyteArray aKeyEncoded, const jbyteArray aParams)

    85 {

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

    87     // Function return value

    88     jint retVal = 0;

    89 

    90     // Call the ciphers specific initialize function.

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

    92                     aParams);

    93 

    94     if (retVal == 0)

    95     {

    96         // Set the mode of the initialized cipher

    97         mMode = aMode;

    98     } // end if

    99 

   100     // return the return value

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

   102     return retVal;

   103 }

   104 

   105 // Function to retreive the IV of the cipher.

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

   107 {

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

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

   110     if (length)

   111     {

   112         *length = miv_length;

   113     }

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

   115     return mIV;

   116 

   117 }

   118 } // namespace satsa

   119 } // namespace java

   120