#ifndef CRYPTCLASSNULLCIPHER_H
#define CRYPTCLASSNULLCIPHER_H

#include "cryptclassbase.h"

#include <QDebug>

#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/conf.h>


/**
* \class CryptClassNullCipher
* \brief For testing purposes, NullCipher does nothing to the Text.
*
* The NullCipher class is, like all Ciphers/Algorithm-classes, derived from CryptclassBase.
* It's intended to be used for testing purposes of the overall Programm-Funcionality only and does
* no encryption whatsoever. Data is merely copied from m_cryptText to m_clearText and vice versa.
* \author Uwe Gogolin [Gogolin.Uwe@FH-SWF.de]
* \version 0.1
* \date 28.02.2013
*/
class CryptClassNullCipher : public CryptClassBase
{
public: //Methods
    /**
    * \brief Class Constructor.
    *
    * Class Constructor. Initializes openssl.
    */
    CryptClassNullCipher();

    /**
     * \brief Class Destructor.
     *
     * Class Destructor. Deinitializes openssl.
     */
    ~CryptClassNullCipher();

    /**
    * \brief Overloaded Method to encrypt present unencrypted data using the current key.
    *
    * NullCipher is used for testing purposes and simulation. No actual encryption is done.
    * Data is copied from m_clearText to m_cryptText.
    */
    virtual void encrypt();


    /**
    * \brief Overloaded Method to decrypt present encrypted data using the current key.
    *
    * NullCipher is used for testing purposes and simulation. No actual decryption is done.
    * Data is copied from m_cryptText to m_clearText.
    */
    virtual void decrypt();

private:
    void handleErrors();
};

#endif // CRYPTCLASSNULLCIPHER_H