org.jasypt.iv.NoIvGenerator Maven / Gradle / Ivy
/*
* =============================================================================
*
* Copyright (c) 2019, The JASYPT team (http://www.jasypt.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* =============================================================================
*/
package org.jasypt.iv;
/**
*
* This implementation of {@link IvGenerator} always returns a
* initialization vector (IV) of length 0.
*
*
* This class is thread-safe.
*
*
* @since 1.9.3
*
* @author Hoki Torres
*
*/
public class NoIvGenerator implements IvGenerator {
/**
* Creates a new instance of NoIvGenerator
*
*/
public NoIvGenerator() {
super();
}
/**
* Return IV with 0 byte length.
*
* @param lengthBytes length in bytes.
* @return the generated IV.
*/
public byte[] generateIv(final int lengthBytes) {
return new byte[0];
}
/**
* As this IV generator provides an empty vector, its inclusion
* unencrypted in encryption results is not necessary.
*
* @return false
*/
public boolean includePlainIvInEncryptionResults() {
return false;
}
}