public ECDSA(ECMultContext?ctx)
{
this.ctx = ctx ?? ECMultContext.Instance;
}
static bool secp256k1_ecdsa_sig_recover(ECMultContext ctx, in Scalar sigr, in Scalar sigs, out GE pubkey, in Scalar message, int recid)
internal static GEJ secp256k1_ecmult_multi_simple_var(ECMultContext ctx, in Scalar?inp_g_sc, ReadOnlySpan <Scalar> scalars, ReadOnlySpan <GE> points)
