https://devzone.nordicsemi.com/f/nordic-q-a/51041/simple-application-level-authentication-blogHi I&#39;m trying to implement the authentication described in the above-mentioned blog. In on_write_req() a call is made to functio &quot;auth_handle_hvx_send()&quot;. I don&#39;t see any source code for that function in the blog so I&#39;m not sure exactly what it doesen-USTelligent Community 13Thu, 15 Aug 2019 20:22:15 GMThttps://devzone.nordicsemi.com/thread/204366?ContentTypeID=1Thu, 15 Aug 2019 20:22:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e32da39-3027-4769-bcb3-bd701cd4c91cSleepingDog<p>Thank you VERY MUCH, Daniel! That helps a lot.</p> <p>Best regards.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/204359?ContentTypeID=1Thu, 15 Aug 2019 19:27:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5b041f87-2214-445b-8b7f-feeefb6007f2Daniel Veilleux<p>I found the original NUS code that I wrote and attached it to the post.</p><div style="clear:both;"></div>