Hello,

how was that found ? is there some compliance (automated) test ?

пт, 9 авг. 2024 г. в 18:57, Sergey Kandaurov <pluk...@nginx.com>:

> details:   https://hg.nginx.org/nginx/rev/906a42885ce2
> branches:
> changeset: 9273:906a42885ce2
> user:      Sergey Kandaurov <pluk...@nginx.com>
> date:      Fri Aug 09 19:12:25 2024 +0400
> description:
> QUIC: discarding 0-RTT keys.
>
> For simplicity, this is done on successful decryption of a 1-RTT packet.
>
> diffstat:
>
>  src/event/quic/ngx_event_quic.c |  10 ++++++++++
>  1 files changed, 10 insertions(+), 0 deletions(-)
>
> diffs (20 lines):
>
> diff -r 6392cb0d83e8 -r 906a42885ce2 src/event/quic/ngx_event_quic.c
> --- a/src/event/quic/ngx_event_quic.c   Fri Aug 09 19:12:23 2024 +0400
> +++ b/src/event/quic/ngx_event_quic.c   Fri Aug 09 19:12:25 2024 +0400
> @@ -1022,6 +1022,16 @@ ngx_quic_handle_payload(ngx_connection_t
>          }
>      }
>
> +    if (pkt->level == ssl_encryption_application) {
> +        /*
> +         * RFC 9001, 4.9.3.  Discarding 0-RTT Keys
> +         *
> +         * After receiving a 1-RTT packet, servers MUST discard
> +         * 0-RTT keys within a short time
> +         */
> +        ngx_quic_discard_ctx(c, ssl_encryption_early_data);
> +    }
> +
>      if (qc->closing) {
>          /*
>           * RFC 9000, 10.2.  Immediate Close
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