Java SHA1 sha1Java(String password)

Description

sha Java

License

Open Source License

Declaration

public static String sha1Java(String password) 

Method Source Code

//package com.java2s;
/*/*ww  w . j  a  v  a2  s  .  c o  m*/
   This file is part of LibreDraw.
    
LibreDraw 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.
    
LibreDraw 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 LibreDraw.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.security.MessageDigest;

public class Main {
    public static String sha1Java(String password) {
        MessageDigest md;
        byte[] sha1hash = new byte[40];
        try {
            md = MessageDigest.getInstance("SHA-1");
            md.update(password.getBytes("iso-8859-1"), 0, password.length());
            sha1hash = md.digest();
        } catch (Exception e) {

        }

        return convertToHex(sha1hash);
    }

    private static String convertToHex(byte[] data) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < data.length; i++) {
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9))
                    buf.append((char) ('0' + halfbyte));
                else
                    buf.append((char) ('a' + (halfbyte - 10)));
                halfbyte = data[i] & 0x0F;
            } while (two_halfs++ < 1);
        }
        return buf.toString();
    }
}

Related

1. sha1HashHex(String data)
2. sha1HashInt(String text)
3. sha1Hex(byte[] bytes)
4. sha1Hex(String data)
5. sha1hex(String source)
6. sha1Sum(byte[] ba)
7. sha1sum(byte[] data, Integer startIdxInc, Integer stopIdxExc)
8. sha1sum(byte[] input, int length)
9. sha1sum(File file)