org.sharetask.utility.HashCodeUtil.java Source code

Introduction

Here is the source code for org.sharetask.utility.HashCodeUtil.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.sharetask.utility;

import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import org.springframework.security.crypto.codec.Hex;

/**
 * @author Michal Bocek
 * @since 1.0.0
 */
public final class HashCodeUtil {

    private HashCodeUtil() {
    }

    public static String getHashCode(final String data) {
        try {
            final MessageDigest mda = MessageDigest.getInstance("SHA-512");
            final String baseSalt = String.valueOf(System.currentTimeMillis());
            final byte[] digest = mda.digest(baseSalt.getBytes(Charset.forName("UTF-8")));
            return new String(Hex.encode(digest));
        } catch (final NoSuchAlgorithmException e) {
            throw new UnsupportedOperationException(e);
        }
    }

    public static String getShortHashCode(final String data) {
        try {
            final MessageDigest mda = MessageDigest.getInstance("SHA-1");
            final String baseSalt = String.valueOf(System.currentTimeMillis());
            final byte[] digest = mda.digest(baseSalt.getBytes(Charset.forName("UTF-8")));
            return new String(Hex.encode(digest));
        } catch (final NoSuchAlgorithmException e) {
            throw new UnsupportedOperationException(e);
        }
    }
}