/*
* Copyright 2008-2010 the original author or authors.
*
* 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 es.alvsanand.webpage.services.security;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class CryptographyServiceImpl implements CryptographyService {
private final static String DEFAULT_DIGEST_ALGORITHM = "SHA-512";
private String digestAlgorithm;
public String getDigestAlgorithm() {
return digestAlgorithm;
}
public void setDigestAlgorithm(String digestAlgorithm) {
this.digestAlgorithm = digestAlgorithm;
}
public byte[] digest(byte[] data) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance((digestAlgorithm != null) ? digestAlgorithm : DEFAULT_DIGEST_ALGORITHM);
md.update(data);
return md.digest();
}
}