Hi I'm creating a class to encrypt/decrypt. After making reference do java.security and javax.crypto. I have a problem, when I try to create a Private key KeyGenerator keyGen = KeyGenerator.getInstance("DES"); give me this error java.lang.NoSuchMethodError: java.lang.Throwable: method initCause(Ljava/lang/Throwable;)Ljava/lang/Throwable; not found at javax.crypto.SunJCE_b. (DashoA6275) at javax.crypto.KeyGenerator.getInstance(DashoA6275) at Encrypt.criaKey(Encrypt.java:42) at Encrypt.main(Encrypt.java:18) Exception in thread "main" I know that the problem is that it can't instance the algorythm, I don´t know   More>>

			

			KeyGenerator keyGen = KeyGenerator.getInstance("DES");