public Signiture Sign(Message msg, Identifier keyId)
{
var skey = Derived_key(keyId);
var sig = Secp.Sign(msg, skey);
return(sig);
}
public Signiture Sign_with_blinding(Message msg, BlindingFactor blinding)
{
var sig = Secp.Sign(msg, blinding.Key);
return(sig);
}