Example usage for javax.crypto SecretKey getEncoded

Introduction

In this page you can find the example usage for javax.crypto SecretKey getEncoded.

Prototype

public byte[] getEncoded();

Source Link

Document

Returns the key in its primary encoding format, or null if this key does not support encoding.

Usage

From source file:Main.java

private static byte[] iv() {
    byte[] iv = null;
    try {//from  www .  j  a  v a 2  s.co  m
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        SecretKey skey = kgen.generateKey();
        iv = skey.getEncoded();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return iv;
}

From source file:Main.java

public static byte[] getRandomKey(byte[] seed) throws Exception {

    KeyGenerator kg = KeyGenerator.getInstance(KEY_ALGORITHM);
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG"); //random
    sr.setSeed(seed);//ww  w .  j  a  va 2s. c  om
    kg.init(128, sr);
    SecretKey secretKey = kg.generateKey();
    return secretKey.getEncoded();
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    sr.setSeed(seed);/* w  w w .  ja v  a2 s  .  c  o  m*/
    kgen.init(128, sr);
    SecretKey sKey = kgen.generateKey();
    byte[] raw = sKey.getEncoded();

    return raw;
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    sr.setSeed(seed);//from w  ww .j  a  va2 s  .  co  m
    kgen.init(128, sr);
    SecretKey sKey = kgen.generateKey();
    byte[] raw = sKey.getEncoded();

    return raw;
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws NoSuchAlgorithmException, NoSuchProviderException {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = null;/* w w  w  . jav  a  2 s .co m*/
    if (android.os.Build.VERSION.SDK_INT >= 17) {
        sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    } else {
        sr = SecureRandom.getInstance("SHA1PRNG");
    }
    sr.setSeed(seed);
    kgen.init(128, sr); //256 bits or 128 bits,192bits  
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    sr.setSeed(seed);/*  w ww. j a  v a 2 s .  c o m*/
    kgen.init(128, sr); // 192 and 256 bits may not be available
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kGen = KeyGenerator.getInstance("AES");
    SecureRandom sr;//w w  w .  ja  v  a 2s. com
    if (android.os.Build.VERSION.SDK_INT >= 17) {
        sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    } else {
        sr = SecureRandom.getInstance("SHA1PRNG");
    }
    sr.setSeed(seed);
    kGen.init(128, sr);
    SecretKey sKey = kGen.generateKey();
    return sKey.getEncoded();
}

From source file:Main.java

private static byte[] generateEncryptionSecret() {
    try {/*from  w  ww .jav a  2 s.  c om*/
        KeyGenerator generator = KeyGenerator.getInstance("AES");
        generator.init(128);

        SecretKey key = generator.generateKey();
        return key.getEncoded();
    } catch (NoSuchAlgorithmException ex) {
        Log.w("keyutil", ex);
        return null;
    }
}

From source file:com.java.demo.DesDemo.java

public static void Init() {
    try {/*  w  w  w. j  a va  2  s  . c o  m*/
        KeyGenerator keyGenerator = KeyGenerator.getInstance("DES");
        keyGenerator.init(56);
        SecretKey secretKey = keyGenerator.generateKey();
        byte[] bytesKey = secretKey.getEncoded();

        DESKeySpec dESKeySpec = new DESKeySpec(bytesKey);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("DES");
        convertSecretKey = factory.generateSecret(dESKeySpec);

    } catch (Exception e) {
    }
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    //  SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    sr.setSeed(seed);// ww  w.  j a va2s  .c  o m
    kgen.init(128, sr); // 192 and 256 bits may not be available
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}