Android Key Create generateMacSecret()

Description

generate Mac Secret

License

Open Source License

Declaration

private static byte[] generateMacSecret() 

Method Source Code

//package com.java2s;
/**// w w  w  .jav  a  2 s .  c  o  m
 * Copyright (C) 2011 Whisper Systems
 * Copyright (C) 2013 Open Whisper Systems
 *
 * 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 android.util.Log;

import java.security.NoSuchAlgorithmException;

import javax.crypto.KeyGenerator;

public class Main {
    private static byte[] generateMacSecret() {
        try {
            KeyGenerator generator = KeyGenerator.getInstance("HmacSHA1");
            return generator.generateKey().getEncoded();
        } catch (NoSuchAlgorithmException e) {
            Log.w("keyutil", e);
            return null;
        }
    }
}

Related

1. getRawKey(byte[] seed)
2. createRandomKey(int size)
3. generateKey(byte[] seed)
4. generateKey(char[] passphraseOrPin, byte[] salt)
5. generateKey(char[] passphraseOrPin, byte[] salt)
6. getKey(String keyRule)
7. getKeyFromPassphrase(String passphrase, byte[] salt)
8. getKeyFromPassphrase(String passphrase, byte[] salt, int iterations)
9. createDESedeKeySpec(SecretKey key)