https://devzone.nordicsemi.com/f/nordic-q-a/29824/about-ediv-and-randHi everyone, I have some questions regarding the use of EDIV and Rand in BLE Legacy Pairing. What I understood from the specs is that these are generated during the pairing phase by the slave device and exchanged with the master along withen-USTelligent Community 13Mon, 29 Jan 2018 08:57:39 GMThttps://devzone.nordicsemi.com/thread/118477?ContentTypeID=1Mon, 29 Jan 2018 08:57:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9a5c2ee3-b517-4b3d-81d4-b6b89e073308run_ar<p>As far as I can see the peer manager will use the identity address, see im_ble_evt_handler. When reestablishing a bond the function sec_info_request_process will be called from smd_ble_evt_handler. This will use the function im_master_ids_compare to check ediv and rand in case of legacy pairing.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/118479?ContentTypeID=1Tue, 16 Jan 2018 10:16:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5c208a5b-1e12-4619-96f9-7326d47d7b26picben<p>Yes, indeed, I did not think of linking to it here, thanks. However, I did not copy the third part of my question there (which is specific to Nordic products). I want to look into the Peer Manager source code for this one, but I have put it off for the moment since it is not very urgent. Anyway, if you have any info, this would be appreciated.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/118478?ContentTypeID=1Mon, 15 Jan 2018 13:09:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c46c5c69-d42b-46c7-87d0-57d05cbdbae7run_ar<p>I was about to answer this, but happened to find your question on stack overflow with what seems like an excellent answer. Linking to it <a href="https://stackoverflow.com/questions/48165520/need-details-about-ediv-and-rand">here</a> in case is usefull for someone else as well.</p><div style="clear:both;"></div>