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ZigBee: APS frame not decrypted


From: Enrique Giraldo <hgiraldos () gmail com>
Date: Fri, 12 Jun 2020 14:01:23 +0200

Sometimes (I could not determine under what conditions) the first
encrypted ZB APS packet is not decrypted. After the first one
everything is fine. I opened this same capture with Ubiqua and these
packets are well decrypted.

I have a lot of evidence that this happens, so it's easily replicable.
I can provide you more evidence if needed.

I've been looking at the code and debugging, but I have no idea what
might be happening.

More details and pcap here:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16507
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