/**
* initialise the RSA engine.
*
* @param forEncryption true if we are encrypting, false otherwise.
* @param param the necessary RSA key parameters.
*/
public void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (core == null)
{
core = new RsaCoreEngine();
}
core.Init(forEncryption, parameters);
}