public void verify(PublicKey key) throws CRLException, NoSuchAlgorithmException, InvalidKeyException, NoSuchProviderException, SignatureException {
  verify(key,"");
}

public void verify ( PublicKey key ) throws CRLException , NoSuchAlgorithmException , InvalidKeyException , NoSuchProviderException , SignatureException { verify ( key , "" ) ; }
verifies that this crl was signed using the private key that corresponds to the given public key .
