Java SecretKeySpec create from raw bytes

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;


public class Main {
  public static void main(String[] args) throws Exception {
    byte[] data = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 };

    // create a 64 bit secret key from raw bytes

    SecretKey key64 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }, "Blowfish");

    // create a cipher and attempt to encrypt the data block with our key

    Cipher c = Cipher.getInstance("Blowfish/ECB/NoPadding");

    c.init(Cipher.ENCRYPT_MODE, key64);
    c.doFinal(data);/*  ww  w .java 2s.  co  m*/
    System.out.println("64 bit test: passed");

    // create a 192 bit secret key from raw bytes

    SecretKey key192 = new SecretKeySpec(new byte[] { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
        0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 }, "Blowfish");

    // now try encrypting with the larger key

    c.init(Cipher.ENCRYPT_MODE, key192);
    c.doFinal(data);
    System.out.println("192 bit test: passed");

  }
}