/*
* =============================================================================
*
* Copyright (c) 2007-2010, 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.util.binary;
import org.jasypt.encryption.pbe.StandardPBEByteEncryptor;
/**
* <p>
* Utility class for easily performing normal-strength encryption of
* binaries (byte arrays).
* </p>
* <p>
* This class internally holds a {@link StandardPBEByteEncryptor}
* configured this way:
* <ul>
* <li>Algorithm: <tt>PBEWithMD5AndDES</tt>.</li>
* <li>Key obtention iterations: <tt>1000</tt>.</li>
* </ul>
* </p>
* <p>
* The required steps to use it are:
* <ol>
* <li>Create an instance (using <tt>new</tt>).</li>
* <li>Set a password (using <tt>{@link #setPassword(String)}</tt> or
* <tt>{@link #setPasswordCharArray(char[])}</tt>).</li>
* <li>Perform the desired <tt>{@link #encrypt(byte[])}</tt> or
* <tt>{@link #decrypt(byte[])}</tt> operations.</li>
* </ol>
* </p>
* <p>
* This class is <i>thread-safe</i>.
* </p>
*
* @since 1.2
*
* @author Daniel Fernández
*
*/
public final class BasicBinaryEncryptor implements BinaryEncryptor {
// The internal encryptor
private final StandardPBEByteEncryptor encryptor;
/**
* Creates a new instance of <tt>BasicBinaryEncryptor</tt>.
*/
public BasicBinaryEncryptor() {
super();
this.encryptor = new StandardPBEByteEncryptor();
this.encryptor.setAlgorithm("PBEWithMD5AndDES");
}
/**
* Sets a password.
*
* @param password the password to be set.
*/
public void setPassword(final String password) {
this.encryptor.setPassword(password);
}
/**
* Sets a password, as a char[].
*
* @since 1.8
* @param password the password to be set.
*/
public void setPasswordCharArray(final char[] password) {
this.encryptor.setPasswordCharArray(password);
}
/**
* Encrypts a byte array
*
* @param binary the byte array to be encrypted.
* @see StandardPBEByteEncryptor#encrypt(byte[])
*/
public byte[] encrypt(final byte[] binary) {
return this.encryptor.encrypt(binary);
}
/**
* Decrypts a byte array.
*
* @param encryptedBinary the byte array to be decrypted.
* @see StandardPBEByteEncryptor#decrypt(byte[])
*/
public byte[] decrypt(final byte[] encryptedBinary) {
return this.encryptor.decrypt(encryptedBinary);
}
}