[Konversation-devel] [konversation] [Bug 340857] New: Cannot connect to TLS v1.2 server

[João Eiras]

https://bugs.kde.org/show_bug.cgi?id=340857

            Bug ID: 340857
           Summary: Cannot connect to TLS v1.2 server
           Product: konversation
           Version: 1.5
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: konversation-devel at kde.org
          Reporter: joao.eiras at gmail.com

This is a follow up of bug 340396, although from a code perspective, it's a
completely different issue. Before konvi would force KTcpSocket to use SSL3,
now it asks for QSsl::SecureProtocols which maps to SSL3 and TLS1.

Unfortunately, if an irc server is using TLS1.2, QSSlSocket will fail to
negotiate a connection and will return an unknown error. Apparently, when it
sees the SecureProtocols flag it will try TLS1.0 and then fallback to SSL3,
bypassing TLS1.2. So this seems like either a bug or limitation in the Qt. This
is what Eike Hein told me.

If you can't setup a test server, then I can give you an address, but I'll then
ask you to ask me the address in private (corporate server).

Reproducible: Always

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