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Description of problem:
when selfserv is configured to ask for post-handshake authentication and support for session resumption (it does send NewSessionTicket messages), the authentication fails with decrypt_error (expected error in case of a malformed signature)

Version-Release number of selected component (if applicable):
nss-3.44.0-2.el7

How reproducible:
always

Steps to Reproduce:
1. selfserv -d nssdb -p 4433 -n server -H 1 -u -rrr -E
2. tlsfuzzer test-tls13-post-handshake-auth.py

Actual results:
decrypt_error in post handshake test case

Expected results:
post handshake passing

Additional info:
the test case doesn't verify interaction with KeyUpdate or handling of multiple post-handshake authentications in a single session

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2019:2237