session resumption not possible after graceful restart if tlsv1.3

[Dominik Stillhard <Dominik.Stillhard@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hello dear apache users

 

With TLSv1.2 it is possible to resume a ssl-session after a graceful restart, if a sessioncache is defined vie SSLSessionCache directive.

When I try to do the same with TLSv1.3, a full handshake is performed. Without the graceful restart, resumption works correctly.

Tested on apache 2.4.41

 

More details on stackoverflow:

https://stackoverflow.com/questions/60080365/apaches-sslsessioncache-not-working-correctly-with-tlsv1-3-and-graceful-restart

 

Any Idea what could be the problem? I didn’t find a bug report on this…

 

Kind regards

Dominik

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