|
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
public class Main {
public static void main(String[] argv) throws Exception {
// Generate a key
KeyGenerator keyGen = KeyGenerator.getInstance("DESede");
SecretKey key = keyGen.generateKey();
// Get the bytes of the key
byte[] keyBytes = key.getEncoded();
int numBytes = keyBytes.length;
// The bytes can be converted back to a SecretKey
SecretKey key2 = new SecretKeySpec(keyBytes, "DESede");
boolean b = key.equals(key2); // true
}
}
|