--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/satsa/crypto/src/stssymmetriccipher.h	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,98 @@
+/*
+* 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:  Base class for cipher algorithms which implements
+ *                CSymmetricCipher.
+ *
+*/
+
+
+#ifndef STSSYMMETRICCIPHER_H
+#define STSSYMMETRICCIPHER_H
+
+//  INCLUDES
+#include <string>
+
+#include <openssl/evp.h>
+#include "stscipher.h"
+
+using namespace std;
+
+// CONSTANTS
+class CSymmetricCipher;
+class CBlockTransformation;
+class CPadding;
+
+namespace java
+{
+namespace satsa
+{
+// CLASS DECLARATION
+/**
+ *  Base class for cipher algorithms which implements CSymmetricCipher.
+ *  For every algorithm key validity must be checked in the subclasses
+ *  because initialization with wrong size key causes a panic.
+ *
+ */
+class STSSymmetricCipher: public STSCipher
+{
+public:
+    // Constructors and destructor
+
+    /**
+     * Destructor.
+     */
+    ~STSSymmetricCipher();
+
+    static STSSymmetricCipher* Create(STSTransformation* aTransformation,
+                                      int* errCode);
+
+public:
+    // Functions from STSCipher
+
+    jint DoInit(JNIEnv* aJni, const TCipherMode aMode,
+                const jstring aKeyAlgorithm, const jstring aKeyFormat,
+                const jbyteArray aKeyEncoded, const jbyteArray aParams);
+
+    jint DoFinal(JNIEnv* aJni, jbyteArray aInput, jint aInputOffset,
+                 jint aInputLength, jbyteArray aOutput, jint aOutputOffset);
+
+    jint Update(JNIEnv* aJni, jbyteArray aInput, jint aInputOffset,
+                jint aInputLength, jbyteArray aOutput, jint aOutputOffset);
+
+protected:
+
+    /**
+     * C++ default constructor.
+     */
+    STSSymmetricCipher();
+
+    int Construct(STSTransformation* aTransformation);
+
+private:
+
+    // Provides symmetric cipher functionality.
+    CSymmetricCipher* mCipher;
+
+    // Bytes processed using Update method. Value is reset to 0 in Init
+    // method.
+    int mBytesProcessed;
+
+    EVP_CIPHER_CTX *mCipherCtx;
+    const EVP_CIPHER *mCipherType;
+
+};
+} // namespace satsa
+} // namespace java
+#endif // STSSYMMETRICCIPHER_H
+// End of File