/**
* initialise the RSA engine.
*
* @param forEncryption true if we are encrypting, false otherwise.
* @param param the necessary RSA key parameters.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters parameters)
{
if (core == null)
{
core = new RsaCoreEngine();
}
core.Init(forEncryption, parameters);
}
/**
* initialise the RSA engine.
*
* @param forEncryption true if we are encrypting, false otherwise.
* @param param the necessary RSA key parameters.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters param)
{
core.Init(forEncryption, param);
if (param is ParametersWithRandom)
{
ParametersWithRandom rParam = (ParametersWithRandom)param;
key = (RsaKeyParameters)rParam.Parameters;
random = rParam.Random;
}
else
{
key = (RsaKeyParameters)param;
random = new SecureRandom();
}
}
/**
* Initialise the blinding engine.
*
* @param forEncryption true if we are encrypting (blinding), false otherwise.
* @param param the necessary RSA key parameters.
*/
public virtual void Init(
bool forEncryption,
ICipherParameters param)
{
RsaBlindingParameters p;
if (param is ParametersWithRandom)
{
ParametersWithRandom rParam = (ParametersWithRandom)param;
p = (RsaBlindingParameters)rParam.Parameters;
}
else
{
p = (RsaBlindingParameters)param;
}
core.Init(forEncryption, p.PublicKey);
this.forEncryption = forEncryption;
this.key = p.PublicKey;
this.blindingFactor = p.BlindingFactor;
}