/**
* return the X9ECParameters object for the named curve represented by
* the passed in object identifier. Null if the curve isn't present.
*
* @param oid an object identifier representing a named curve, if present.
*/
public static X9ECParameters GetByOid(
DerObjectIdentifier oid)
{
X9ECParametersHolder holder = (X9ECParametersHolder)curves[oid];
return(holder == null ? null : holder.Parameters);
}
private static void DefineCurve(
string name,
DerObjectIdentifier oid,
X9ECParametersHolder holder)
{
objIds.Add(name, oid);
names.Add(oid, name);
curves.Add(oid, holder);
}
private static void DefineCurve(
string name,
DerObjectIdentifier oid,
X9ECParametersHolder holder)
{
objIds.Add(Platform.ToUpperInvariant(name), oid);
names.Add(oid, name);
curves.Add(oid, holder);
}
private static void DefineCurve(string name, DerObjectIdentifier oid, X9ECParametersHolder holder)
{
nameToCurve.Add(name, holder);
nameToOid.Add(name, oid);
oidToName.Add(oid, name);
oidToCurve.Add(oid, holder);
}
private static void DefineCurve(string name, X9ECParametersHolder holder)
{
nameToCurve.Add(name, holder);
}
private static void DefineCurve(
string name,
DerObjectIdentifier oid,
X9ECParametersHolder holder)
{
objIds.Add(name, oid);
names.Add(oid, name);
curves.Add(oid, holder);
}