https://devzone.nordicsemi.com/f/nordic-q-a/3309/wireshark-and-encryptionI am using the sniffer with Wireshark to watch some data being passed by my central and peripheral. I started with the multilink central and peripheral examples. Unfortuantely, Wireshark always tells me it can&#39;t decrypt the data because the MIC is baden-USTelligent Community 13Fri, 01 Aug 2014 19:56:47 GMThttps://devzone.nordicsemi.com/thread/12062?ContentTypeID=1Fri, 01 Aug 2014 19:56:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e8e0089f-4554-4f3d-be81-28fa21a68e72Jo-Jo<p>I&#39;m not exactly sure what I did to get this working, but it works now. I erased, and reloaded both soft devices, and both applications. I also quit out of Wireshark, and the sniffer, and restarted them both. Now it seems to work.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/12061?ContentTypeID=1Thu, 31 Jul 2014 00:29:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a0d0ae1d-1c10-4604-927f-0fa65528e299Ulrich Myhre<p>It is possible to encrypt a connection even if there are no attributes requiring a security level to be accessed. It&#39;s hard to say for sure what&#39;s happening without a trace, but I guess one of the parts initiate security (perhaps due to an existing bond?) and that&#39;s what you&#39;re seeing. Try clearing any existing bonds if there are any.</p> <p>For the second part the sniffer is able to decrypt connections when it sees the initial security setup (and enter any keys if applicable). I don&#39;t think it supports entering a long-term key to decrypt a secure connection encrypted with an LTK previously exchanged through bonding.</p><div style="clear:both;"></div>