javax/crypto/NullCipher.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package javax.crypto;

/**
 * The NullCipher class is a class that provides an
 * "identity cipher" -- one that does not transform the plain text.  As
 * a consequence, the ciphertext is identical to the plaintext.  All
 * initialization methods do nothing, while the blocksize is set to 1
 * byte.
 *
 * @author  Li Gong
 * @since 1.4
 */

public class NullCipher extends Cipher {

    /**
     * Creates a NullCipher object.
     */
    public NullCipher() {
        super(new NullCipherSpi(), null, null);
    }
}