org.agora.server.Util.java Source code

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Here is the source code for org.agora.server.Util.java

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/*
    
Copyright (C) 2015 Agora Communication Corporation
    
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 2 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

package org.agora.server;

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

import org.agora.logging.Log;
import org.apache.commons.codec.binary.Base64;

public class Util {

    public static String hash(String password) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            byte[] hash = md.digest(password.getBytes(Charset.forName("UTF-8")));

            return Base64.encodeBase64String(hash);
        } catch (NoSuchAlgorithmException e) {
            Log.error("[Util.hashPassword] Error hashing password (" + e.getMessage() + ")");
            return null;
        }
    }

    // Credits: http://stackoverflow.com/questions/9655181/convert-from-byte-array-to-hex-string-in-java
    final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();

    public static String bytesToHex(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        int v;
        for (int j = 0; j < bytes.length; j++) {
            v = bytes[j] & 0xFF;
            hexChars[j * 2] = hexArray[v >>> 4];
            hexChars[j * 2 + 1] = hexArray[v & 0x0F];
        }
        return new String(hexChars);
    }
}