|
public static GetByOid ( DerObjectIdentifier oid ) : |
||
| oid | DerObjectIdentifier | |
| return | ||
/**
* return a X9ECParameters object representing the passed in named
* curve.
*
* @param oid the object id of the curve requested
* @return an X9ECParameters object or null if the curve is not available.
*/
public static X9ECParameters GetByOid(DerObjectIdentifier oid)
{
X9ECParameters ecP = X962NamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = SecNamedCurves.GetByOid(oid);
}
// NOTE: All the NIST curves are currently from SEC, so no point in redundant OID lookup
if (ecP == null)
{
ecP = TeleTrusTNamedCurves.GetByOid(oid);
}
if (ecP == null)
{
ecP = AnssiNamedCurves.GetByOid(oid);
}
if (ecP == null)
{
ecP = GMNamedCurves.GetByOid(oid);
}
return(ecP);
}
public static X9ECParameters GetByName(string name)
{
DerObjectIdentifier oid = X962NamedCurves.GetOid(name);
if (oid != null)
{
return(X962NamedCurves.GetByOid(oid));
}
return(null);
}
public static X9ECParameters GetByOid(DerObjectIdentifier oid)
{
X9ECParameters byOid = X962NamedCurves.GetByOid(oid);
if (byOid == null)
{
byOid = SecNamedCurves.GetByOid(oid);
}
if (byOid == null)
{
byOid = TeleTrusTNamedCurves.GetByOid(oid);
}
return(byOid);
}
