https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12779
--- Comment #106 from Peter Wu <pe...@lekensteyn.nl> ---
(In reply to Hubert Kario from comment #103)
> Created attachment 16519 [details]
> gnutls client to openssl with gnutls initiated key update (draft-28)
>
> I'm trying to decrypt communication from GnuTLS to OpenSSL after KeyUpdate
> message. It fails for connections that use draft-28.
Decryption works for me with v2.6.2, v2.6.3rc0-29-gd994321c91 and git master on
Arch Linux:
tshark -r capture.pcap -ossl.keylog_file:openssl_keylog.txt -Y ssl
4 0.001772 TLSv1 383 Client Hello
6 0.009048 TLSv1.3 3082 Server Hello, Change Cipher Spec, Encrypted
Extensions, Certificate, Certificate Verify, Finished
8 0.010039 TLSv1.3 92 Change Cipher Spec
10 0.050398 TLSv1.3 160 Finished
12 0.050699 TLSv1.3 341 New Session Ticket
13 0.050906 TLSv1.3 341 New Session Ticket
14 0.051171 TLSv1.3 110 Alert (Level: Warning, Description: Close Notify)
20 0.053151 TLSv1 654 Client Hello
22 0.054202 TLSv1.3 328 Server Hello, Change Cipher Spec, Encrypted
Extensions, Finished
24 0.057131 TLSv1.3 92 Change Cipher Spec
26 0.097398 TLSv1.3 286 Finished, Key Update, Application Data,
Application Data, Application Data
28 0.097682 TLSv1.3 341 New Session Ticket
29 0.097896 TLSv1.3 113 Key Update
If the problem remains, could you attach the output from
-ossl.debug_file:tls13-debug.txt? Try to reproduce it with a clean config dir
as well (e.g. HOME=$PWD/wshome tshark ...)
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