hi i am using password based encryption mechansim for encrypting some string data i was successfully in encrypting the data by while decrypting the data i am getting the system error
please guide me 
i am attaching my sample code below
 

ByteBuffer password;
        String pwdbuff=”harish”;
            const int BUFFER_SIZE = 16;
            int length = pwdbuff.GetLength();
            int index = 0;
            result r = E_SUCCESS;
            ByteBuffer *pwd=StringUtil::StringToUtf8N(pwdbuff);
            r = password.Construct(BUFFER_SIZE);
            r = password.SetArray(( byte*)”harish”, index, length);
            password.Flip();
            Pkcs05Schemes pkcs05Schemes;
            r = pkcs05Schemes.Construct(password, length);
            Pkcs05PbEs2Parameters pkcs05PbEs2Parameters;
            AlgorithmIdentifier keyDerivationFunction;
            AlgorithmIdentifier encryptionScheme;
            Pkcs05PbKdf2Parameters pkcs05PbKdf2Params;
            ByteBuffer saltValue;
            InitialVector initialVector;
            ByteBuffer initialVectorValue;
            int iterationCount = 100;
            int derivedKeyLength = 20;
            r = saltValue.Construct(16);
            r = saltValue.SetArray((byte*) “1234567890123456”, 0, 16);
            saltValue.Flip();
            r = pkcs05PbKdf2Params.Construct(saltValue, iterationCount, derivedKeyLength);
            r = keyDerivationFunction.Construct(OID_PBKDF2, &pkcs05PbKdf2Params);
            r = initialVectorValue.Construct(BUFFER_SIZE);
            r = initialVectorValue.SetArray((const byte*) “12345678”, index, length);
            initialVectorValue.Flip();
            r = initialVector.Construct(initialVectorValue);
            r = encryptionScheme.Construct(OID_AES_256_CBC, &initialVector);
            r = pkcs05PbEs2Parameters.Construct(keyDerivationFunction, encryptionScheme);
            ByteBuffer* pResult = null;
            AppLog(“after pbes settings”);
            ByteBuffer *pwdk=StringUtil::StringToUtf8N(“harishK”);
                pResult = pkcs05Schemes.EncryptionScheme2N(pkcs05PbEs2Parameters, *pwdk);
            AppLog(“pResulr is %s”,pResult->GetPointer());

//for decryption
            ByteBuffer *pResult1=pkcs05Schemes.DecryptionScheme2N(pkcs05PbEs2Parameters, *pResult);

            AppLog(“pResult is %s if error is %s”,pResult1->GetPointer(),GetLastResult())