Java Digest digestStream(MessageDigest digest, InputStream is)

Description

digest Stream

License

Open Source License

Declaration

public static byte[] digestStream(MessageDigest digest, InputStream is) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w  w w. j av a  2 s.c  o m*/
 * XAdES4j - A Java library for generation and verification of XAdES signatures.
 * Copyright (C) 2011 Luis Goncalves.
 * 
 * XAdES4j is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 3 of the License, or any later version.
 * 
 * XAdES4j 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License along
 * with XAdES4j. If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.IOException;
import java.io.InputStream;
import java.security.MessageDigest;

public class Main {
    public static byte[] digestStream(MessageDigest digest, InputStream is) throws IOException {
        byte[] buf = new byte[4096];
        int nRead;
        while ((nRead = is.read(buf)) != -1) {
            digest.update(buf, 0, nRead);
        }

        return digest.digest();
    }
}

Related

1. digestEncrypte(byte[] plainText, String algorithm)
2. digestHex(String txt)
3. digestHmacToBase64(String algorithm, String msg, byte[] privateKey)
4. digestInit()
5. digestOperation(String algo, byte[]... content)
6. digestString(MessageDigest md, String s)
7. digestString(String input)
8. digestString(String pass, String algorithm)
9. digestString(String pass, String algorithm)