[gnutls-devel] GnuTLS | Improve 0-RTT handling in gnutls-serv/gnutls-cli (!1936)

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Daiki Ueno commented on a discussion on src/cli.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1936#note_2350146964

 >  			     GNUTLS_TLS1_3) ||
 >  			    ((gnutls_session_get_flags(hd->session) &
 >  			      GNUTLS_SFLAGS_SESSION_TICKET))) {
 > +				max_early_data_size =

The problem is that the data (session ticket) retrieved with `gnutls_session_get_data2` can only be decrypted by the server and from anyone else (including the client), it looks like an opaque blob.

We could store max_early_data_size as a metadata along with the session ticket to eliminate the need of calling get/set_max_early_data, though I guess it would be a non-trivial change.

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