/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.util;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* Utility class for hashing with MD5
*/
public final class MD5Util {
private MD5Util() {
}
/**
* Converts given string to MD5 hash
*
* @param str str to be hashed with MD5
*/
@SuppressWarnings("checkstyle:magicnumber")
public static String toMD5String(String str) {
try {
MessageDigest md = MessageDigest.getInstance("MD5");
if (md == null || str == null) {
return "NULL";
}
byte[] byteData = md.digest(str.getBytes(Charset.forName("UTF-8")));
StringBuilder sb = new StringBuilder();
for (byte aByteData : byteData) {
sb.append(Integer.toString((aByteData & 0xff) + 0x100, 16).substring(1));
}
return sb.toString();
} catch (NoSuchAlgorithmException ignored) {
EmptyStatement.ignore(ignored);
return null;
}
}
}