internal static X9ECParameters GenerateEllipticCurve(ECDSAEllipticCurve ellipticCurve)
{
switch (ellipticCurve)
{
case ECDSAEllipticCurve.SecT113r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT113r1));
case ECDSAEllipticCurve.SecT113r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT113r2));
case ECDSAEllipticCurve.SecT131r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT131r2));
case ECDSAEllipticCurve.SecT131r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT131r1));
case ECDSAEllipticCurve.SecT163k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT163k1));
case ECDSAEllipticCurve.SecT163r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT163r1));
case ECDSAEllipticCurve.SecT163r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT163r2));
case ECDSAEllipticCurve.SecT193r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT193r1));
case ECDSAEllipticCurve.SecT193r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT193r2));
case ECDSAEllipticCurve.SecT233k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT233k1));
case ECDSAEllipticCurve.SecT233r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT233r1));
case ECDSAEllipticCurve.SecT239k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT239k1));
case ECDSAEllipticCurve.SecT283k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT283k1));
case ECDSAEllipticCurve.SecT283r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT283r1));
case ECDSAEllipticCurve.SecT409k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT409k1));
case ECDSAEllipticCurve.SecT409r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT409r1));
case ECDSAEllipticCurve.SecT571k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT571k1));
case ECDSAEllipticCurve.SecT571r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecT571r1));
case ECDSAEllipticCurve.SecP112r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP112r1));
case ECDSAEllipticCurve.SecP112r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP112r2));
case ECDSAEllipticCurve.SecP128r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP128r1));
case ECDSAEllipticCurve.SecP128r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP128r2));
case ECDSAEllipticCurve.SecP160k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP160k1));
case ECDSAEllipticCurve.SecP160r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP160r1));
case ECDSAEllipticCurve.SecP160r2: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP160r2));
case ECDSAEllipticCurve.SecP192k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP192k1));
case ECDSAEllipticCurve.SecP192r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP192r1));
case ECDSAEllipticCurve.SecP224k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP224k1));
case ECDSAEllipticCurve.SecP224r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP224r1));
case ECDSAEllipticCurve.SecP256k1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP256k1));
case ECDSAEllipticCurve.SecP256r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP256r1));
case ECDSAEllipticCurve.SecP384r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP384r1));
case ECDSAEllipticCurve.SecP521r1: return(SecNamedCurves.GetByOid(SecObjectIdentifiers.SecP521r1));
default: throw new System.Security.Cryptography.CryptographicException("Unsupported elliptic curve.");
}
}
/// <summary>
/// ECDSA.
/// <para/>Uses EllipticCurve.SecP256r1 by default.
/// </summary>
/// <param name="ellipticCurve">Elliptic curve.</param>
public ECDSA(ECDSAEllipticCurve ellipticCurve) : base("ECDSA")
{
_ellipticCurve = ellipticCurve;
}
