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 STSCipherFactory.

    15  *

    16 */

    17 

    18 

    19 // INCLUDE FILES

    20 #include "stscipherfactory.h"

    21 #include "stssymmetriccipher.h"

    22 #include "ststransformation.h"

    23 #include "stsrsacipher.h"

    24 #include "logger.h"

    25 

    26 namespace java

    27 {

    28 namespace satsa

    29 {

    30 

    31 //factory method which creates the cipher based on the transformation

    32 STSCipher* STSCipherFactory::CreateCipher(JNIEnv* aJni,

    33         jstring aTransformation, int* errCode)

    34 {

    35     LOG(ESATSA, EInfo, "STSCipherFactory::CreateCipher+");

    36     OpenSSL_add_all_algorithms();

    37 

    38     // Create the transformation object

    39     // Transformation is a form of algorithm/mode/padding or

    40     // algorithm

    41     STSTransformation* transformation = STSTransformation::Create(aJni,

    42                                         aTransformation, errCode);

    43 

    44     if (transformation == NULL)

    45     {

    46         // transformation was not created successfully and errCode is set approriately

    47         ELOG(ESATSA, "transformation was not created successfully");

    48         return NULL;

    49     }

    50 

    51     // Transformation succeeded, create the cipher object.

    52     STSCipher* cipher = NULL;

    53 

    54     if ((transformation->Algorithm() == STSAlgorithm3DES)

    55             || (transformation->Algorithm() == STSAlgorithmAES)

    56             || (transformation->Algorithm() == STSAlgorithmRC2)

    57             || (transformation->Algorithm() == STSAlgorithmDES))

    58     {

    59         // Create the native symmetric cipher

    60         LOG(ESATSA, EInfo, "STSCipherFactory::CreateCipher: Create the native symmetric cipher");

    61         cipher = STSSymmetricCipher::Create(transformation, errCode);

    62     }

    63     else if (transformation->Algorithm() == STSAlgorithmRSA)

    64     {

    65         // Create the native RSA cipher.

    66         LOG(ESATSA, EInfo, "STSCipherFactory::CreateCipher: Create the native RSA cipher");

    67         cipher = STSRSACipher::Create(errCode);

    68     }

    69     else

    70     {

    71         // Unsupported algorithm, return NULL.

    72         ELOG(ESATSA, "STSCipherFactory::CreateCipher: Unsupported algorithm, return NULL.");

    73         *errCode = KSTSErrNoSuchAlgorithm;

    74         return NULL;

    75     }

    76 

    77     if (cipher != NULL)

    78     {

    79         // Cipher created successfully.

    80         // Set the transformation that is expected in the cipher object that was created above

    81         LOG(ESATSA, EInfo, "STSCipherFactory::CreateCipher: Cipher created successfully.");

    82         cipher->SetTransformation(transformation);

    83     }

    84 

    85     LOG(ESATSA, EInfo, "STSCipherFactory::CreateCipher: return cipher");

    86     // return the cipher object.

    87     return cipher;

    88 }

    89 } // namespace satsa

    90 } // namespace java

    91 

    92