This
interface represents an RSA private key and provides direct access to
the underlying key values. If you are working with a private key you
know is an RSA key, you can cast the PrivateKey to
an RSAPrivateKey.
Figure 14-82. java.security.interfaces.RSAPrivateKey

public interface RSAPrivateKey extends java.security.PrivateKeyRSAKey {
// Public Constants
5.0 public static final long serialVersionUID ; =5187144804936595022
// Public Instance Methods
java.math.BigInteger getPrivateExponent ( );
}
Implementations
RSAMultiPrimePrivateCrtKey,
RSAPrivateCrtKey