/// <summary>
/// Creates a new <see cref="EllipticCurveAlgebra" /> instance
/// for the curve identified by <paramref name="curveId"/>.
/// </summary>
/// <param name="curveId">Identifier of the elliptic curve.</param>
public EllipticCurveAlgebra(EllipticCurveID curveId)
{
Handle = ECGroupHandle.CreateByCurveNID((int)curveId);
using (var ctx = BigNumberContextHandle.Create())
{
ECGroupHandle.PrecomputeGeneratorMultiples(Handle, ctx);
}
}
/// <summary>
/// Creates a <see cref="CryptoGroup{SecureBigNumber, ECPoint}" /> instance using a <see cref="EllipticCurveAlgebra" />
/// for the given curve identifier.
/// </summary>
/// <param name="curveId">Identifier of the elliptic curve.</param>
public static CryptoGroup <SecureBigNumber, ECPoint> CreateCryptoGroup(EllipticCurveID curveId)
{
return(new CryptoGroup <SecureBigNumber, ECPoint>(new EllipticCurveAlgebra(curveId)));
}