/// <summary>
/// Utility method to signs the UserSignatureEventArgs server nonce from
/// a private credentials file.
/// </summary>
/// <param name="credsFile">A file with the private Nkey</param>
/// <param name="args">Arguments</param>
public static void SignNonceFromFile(string credsFile, UserSignatureEventArgs args)
{
var kp = LoadNkeyPairFromSeedFile(credsFile);
args.SignedNonce = kp.Sign(args.ServerNonce);
kp.Wipe();
}
/// <summary>
/// The default User Signature event handler.
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
public void DefaultUserSignatureHandler(object sender, UserSignatureEventArgs args)
{
SignNonceFromFile(credsFile, args);
}