Tuesday, 17 October 2017
BaseSymmetricCipher.java (base symmetric cipher Java source code file) Print E-mail
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//
// Creator:    http://www.dicelocksecurity.com
// Version:    vers.6.0.0.1
//
// Copyright (C) 2011-2012 DiceLock Security, LLC. All rights reserved.
//
//                               DISCLAIMER
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// DICELOCK IS A REGISTERED TRADEMARK OR TRADEMARK OF THE OWNERS.
//
// Environment:
// java version "1.6.0_29"
// Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
// Java HotSpot(TM) Server VM (build 20.4-b02, mixed mode)
//
 
package com.dicelocksecurity.jdicelock.Cipher.SymmetricCipher;
 
import com.dicelocksecurity.jdicelock.CryptoRandomStream.BaseCryptoRandomStream;
 
/**
 * Class implementing symmetric cipher base class
 *
 * @author      Angel Ferré @ DiceLock Security
 * @version     6.0.0.1
 * @since       2011-10-30
 */
public abstract class BaseSymmetricCipher {
 
    /**
     * Pointer to BaseCryptoRandomStream block cipher key
     */
    protected BaseCryptoRandomStream symmetricKey;
 
    /**
     * Constructor, default
     */
    public BaseSymmetricCipher() {
        super();
    }
 
    /**
     * Destructor
     */
    public void finalize() {
 
    }
 
    /**
     * Initialize BaseSymmetricCipher
     */
    abstract public void Initialize();
 
    /**
     * Sets the symmetric key
     *
     * @param   symmetricKey     BaseCryptoRandomStream data used as symmetric key by encryption/decryption cipher
     */
    abstract public void SetSymmetricKey(BaseCryptoRandomStream symmetricKey);
 
    /**
     * Gets the symmetric key
     *
     * @return  BaseCryptoRandomStream:    the symmetric key used by block cipher
     */
    abstract public BaseCryptoRandomStream GetSymmetricKey();
 
    /**
     * Ciphers the plaintext BaseCryptoRandomStream to ciphertext BaseCryptoRandomStream
     *
     * @param   plainText     plaintext to be ciphered
     * @param   cipherText    ciphertext corresponding to plaintext ciphered with symmetric key
     */
    abstract public void Cipher(BaseCryptoRandomStream plainText, BaseCryptoRandomStream cipherText);
 
    /**
     * Deciphers the ciphertext BaseCryptoRandomStream to plaintext BaseCryptoRandomStream
     *
     * @param   cipherText    ciphertext to be deciphered
     * @param   plainText     plaintext corresponding to ciphertext deciphered with symmetric key
     */
    abstract public void Decipher(BaseCryptoRandomStream cipherText, BaseCryptoRandomStream plainText);
 
    /**
     * Gets cipher block key length in bits
     *
     * @return    short:    symmetric key length in bits
     */
    abstract public short GetBitKeyLength();
 
    /**
     * Gets cipher block key length in bytes
     *
     * @return    short:    symmetric key length in bytes
     */
    abstract public short GetUCKeyLength();
 
    /**
     * Gets cipher block key length in shorts
     *
     * @return    short:    symmetric key length in shorts
     */
    abstract public short GetUSKeyLength();
 
    /**
     * Gets cipher block key length in ints
     *
     * @return    short:    symmetric key length in ints
     */
    abstract public short GetULKeyLength();
 
    /**
     * Gets the type of the object
     *
     * @return    SymmetricCiphers:     symmetric cipher type of the object
     */
    abstract public SymmetricCiphers GetSymmetricCipherType();
 
}