Android AES Key Get getRawKey(byte[] seed)

Description

To get a raw key.

License

Open Source License

Parameter

Parameter	Description
seed	the byte data of a seed.

Return

return the seed's byte data.

Declaration

private static byte[] getRawKey(byte[] seed) throws Exception 

Method Source Code

//package com.java2s;
import java.security.SecureRandom;

import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;

public class Main {
    /**//from  w ww  . j av  a 2 s.  c  om
     * To get a raw key.
     * @param seed the byte data of a seed.
     * @return return the seed's byte data.
     */
    private static byte[] getRawKey(byte[] seed) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
        sr.setSeed(seed);
        kgen.init(128, sr);
        SecretKey sKey = kgen.generateKey();
        byte[] raw = sKey.getEncoded();
        return raw;
    }
}

Related

1. getRawKey(byte[] seed)
2. getRawKey(byte[] seed)
3. getRawKey(byte[] seed)
4. getRawKey(byte[] seed)
5. getRawKey(byte[] seed)
6. getSecretKey(String key)
7. initSecretKey()
8. keyAreEqual(byte[] b1, byte[] b2)
9. makeKey()