package org.bouncycastle.jce;

import java.util.Enumeration;

import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.cryptopro.ECGOST3410NamedCurves;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.jce.spec.ECNamedCurveParameterSpec;

a table of locally supported named curves.
/** * a table of locally supported named curves. */
public class ECGOST3410NamedCurveTable {
return a parameter spec representing the passed in named curve. The routine returns null if the curve is not present.
Params:
  • name – the name of the curve requested
Returns:a parameter spec for the curve, null if it is not available.
/** * 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) { ECDomainParameters ecP = ECGOST3410NamedCurves.getByName(name); if (ecP == null) { try { ecP = ECGOST3410NamedCurves.getByOID(new DERObjectIdentifier(name)); } catch (IllegalArgumentException e) { return null; // not an oid. } } 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.
Returns:an enumeration of the names of the available curves.
/** * 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 ECGOST3410NamedCurves.getNames(); } }