/**
* Initializes the key pair generator using the specified parameter set and the <code>SecureRandom
* </code> implementation of the highest-priority installed provider as the source of randomness.
* (If none of the installed providers supply an implementation of <code>SecureRandom</code>, a
* system-provided source of randomness is used.).
*
* <p>This concrete method has been added to this previously-defined abstract class. This method
* calls the KeyPairGeneratorSpi {@link KeyPairGeneratorSpi#initialize(
* java.security.spec.AlgorithmParameterSpec, java.security.SecureRandom) initialize} method,
* passing it <code>params</code> and a source of randomness (obtained from the highest-priority
* installed provider or system-provided if none of the installed providers supply one). That
* <code>initialize</code> method always throws an UnsupportedOperationException if it is not
* overridden by the provider.
*
* @param params the parameter set used to generate the keys.
* @exception InvalidAlgorithmParameterException if the given parameters are inappropriate for
* this key pair generator.
* @since 1.2
*/
public void initialize(AlgorithmParameterSpec params) throws InvalidAlgorithmParameterException {
initialize(params, JCAUtil.getSecureRandom());
}
/**
* Initializes the key pair generator for a certain keysize using a default parameter set and the
* <code>SecureRandom</code> implementation of the highest-priority installed provider as the
* source of randomness. (If none of the installed providers supply an implementation of <code>
* SecureRandom</code>, a system-provided source of randomness is used.)
*
* @param keysize the keysize. This is an algorithm-specific metric, such as modulus length,
* specified in number of bits.
* @exception InvalidParameterException if the <code>keysize</code> is not supported by this
* KeyPairGenerator object.
*/
public void initialize(int keysize) {
initialize(keysize, JCAUtil.getSecureRandom());
}