package org.bouncycastle.jce;
import java.util.Enumeration;
import org.bouncycastle.asn1.x9.X962NamedCurves;
import org.bouncycastle.asn1.x9.X9ECParameters;
import org.bouncycastle.jce.spec.ECNamedCurveParameterSpec;
/**
* a table of locally supported named curves.
*/
public class ECNamedCurveTable
{
/**
* return a parameter spec representing the passed in named
* curve. The routine returns null if the curve is not present.
*
* @param name the name of the curve requested
* @return a parameter spec for the curve, null if it is not available.
*/
public static ECNamedCurveParameterSpec getParameterSpec(
String name)
{
X9ECParameters ecP = X962NamedCurves.getByName(name);
if (ecP == null)
{
return null;
}
return new ECNamedCurveParameterSpec(
name,
ecP.getCurve(),
ecP.getG(),
ecP.getN(),
ecP.getH(),
ecP.getSeed());
}
/**
* return an enumeration of the names of the available curves.
*
* @return an enumeration of the names of the available curves.
*/
public static Enumeration getNames()
{
return X962NamedCurves.getNames();
}
}