[gnutls-devel] GnuTLS | add support for 0-RTT (!775)

Development of GNU's TLS library gnutls-devel at lists.gnutls.org
Mon Oct 29 20:29:53 CET 2018

Nikos Mavrogiannopoulos commented on a discussion on lib/tls13/session_ticket.c:

>  	return 0;
>  }
> +static int append_nst_extension(void *ctx, gnutls_buffer_st *buf)
> +{
> +	gnutls_session_t session = ctx;
> +	int ret;
> +
> +	if (!(session->internals.flags & GNUTLS_ENABLE_EARLY_DATA))

Indeed, that's why I think we shouldn't communicate (as server) values which don't have much sense as they may cause unpredictable behavior to clients. Alternatively, we could return an error when a zero value is set.

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