Java SHA256 sha256(byte[] data)

Description

sha

License

Apache License

Declaration

public static byte[] sha256(byte[] data) 

Method Source Code

//package com.java2s;
/**/*  www . j  a va 2s  .  co m*/
 * Copyright 2011 bccapi.com
 *
 * 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.
 */

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    private static final String SHA256 = "SHA-256";

    public static byte[] sha256(byte[] data) {
        return sha256(data, 0, data.length);
    }

    public static byte[] sha256(byte[] data1, byte[] data2) {
        try {
            MessageDigest digest;
            digest = MessageDigest.getInstance(SHA256);
            digest.update(data1, 0, data1.length);
            digest.update(data2, 0, data2.length);
            return digest.digest();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e); // Cannot happen.
        }
    }

    public static byte[] sha256(byte[] data, int offset, int length) {
        try {
            MessageDigest digest;
            digest = MessageDigest.getInstance(SHA256);
            digest.update(data, offset, length);
            return digest.digest();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e); // Cannot happen.
        }
    }
}

Related

1. digestSha256(String plain)
2. digestSha256(String value)
3. getSHA256(String input)
4. sha256()
5. sha256(byte[] bytes)
6. sha256(byte[] data)
7. SHA256(byte[] input)
8. SHA256(byte[] P)
9. SHA256(byte[] src)