public static RegistrationSignature Sign(ICryptoLibrary cryptoLibrary, Action <BinaryWriter> writeSignedFields, RegistrationPrivateKey privateKey)
{
var r = new RegistrationSignature();
var ms = new MemoryStream(); using (var writer = new BinaryWriter(ms)) writeSignedFields(writer);
r.ed25519signature = cryptoLibrary.SignEd25519(
ms.ToArray(),
privateKey.ed25519privateKey);
return(r);
}
