/**
* initialise a Rijndael cipher.
*
* @param forEncryption whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception IllegalArgumentException if the params argument is inappropriate.
*/
public void init(boolean forEncryption, CipherParameters params) {
if (params instanceof KeyParameter) {
workingKey = generateWorkingKey(((KeyParameter) params).getKey());
this.forEncryption = forEncryption;
return;
}
throw new IllegalArgumentException(
"invalid parameter passed to Rijndael init - " + params.getClass().getName());
}
/**
* initialise a CAST cipher.
*
* @param encrypting whether or not we are for encryption.
* @param params the parameters required to set up the cipher.
* @exception IllegalArgumentException if the params argument is inappropriate.
*/
public void init(boolean encrypting, CipherParameters params) {
if (params instanceof KeyParameter) {
_encrypting = encrypting;
_workingKey = ((KeyParameter) params).getKey();
setKey(_workingKey);
return;
}
throw new IllegalArgumentException(
"Invalid parameter passed to "
+ getAlgorithmName()
+ " init - "
+ params.getClass().getName());
}