Java SHA256 SHA256(byte[] input)

Description

SHA

License

Open Source License

Declaration

public synchronized static byte[] SHA256(byte[] input) 

Method Source Code

//package com.java2s;
/*/*from w  w w .j  a v a2s . co  m*/
JJSP - Java and Javascript Server Pages 
Copyright (C) 2016 Global Travel Ventures Ltd
    
This program is free software: you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation, either version 3 of the License, or 
(at your option) any later version.
    
This program is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 
for more details.
    
You should have received a copy of the GNU General Public License along with 
this program. If not, see http://www.gnu.org/licenses/.
*/

import java.nio.charset.*;

import java.security.*;
import java.util.*;

public class Main {
    public static final Charset ASCII = Charset.forName("US-ASCII");
    private static MessageDigest sha256;

    public synchronized static byte[] SHA256(byte[] input) {
        return sha256.digest(input);
    }

    public static String SHA256(String in) {
        return toHexString(SHA256(getAsciiBytes(in)));
    }

    public static String toHexString(byte[] arr) {
        Formatter formatter = new Formatter();
        for (int i = 0; i < arr.length; i++)
            formatter.format("%02x", arr[i]);
        return formatter.toString();
    }

    public static byte[] getAsciiBytes(String src) {
        if (src == null)
            return null;
        return src.getBytes(ASCII);
    }

    public static String toString(byte[] rawText) {
        if (rawText == null)
            return null;
        return toString(rawText, 0, rawText.length);
    }

    public static String toString(byte[] rawText, int offset, int length) {
        if (rawText == null)
            return null;
        return new String(rawText, offset, length, ASCII);
    }
}

Related

1. getSHA256(String input)
2. sha256()
3. sha256(byte[] bytes)
4. sha256(byte[] data)
5. sha256(byte[] data)
6. SHA256(byte[] P)
7. SHA256(byte[] src)
8. SHA256(ByteBuffer buf, int off, int length)
9. sha256(final InputStream inputStream)