https://devzone.nordicsemi.com/f/nordic-q-a/3239/timestamp-encrypted-with-aes-in-nrf51822-bluetooth-smart-beacon-kitHello, I have been trying to implement AES in order to encrypt a time stamtamp to be sent in the advert of the iBeacon ( 128 bits, using Minor and Major bits, (16+16)*4=128 bits to use the 128bits AES encryption using 4 complete adverts). Here is theen-USTelligent Community 13Sat, 07 Mar 2015 00:31:01 GMThttps://devzone.nordicsemi.com/thread/11868?ContentTypeID=1Sat, 07 Mar 2015 00:31:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c8ce2bb-e918-4015-b2d7-df18261de1fbLarry<p>that is not true, in order to use sd_ecb_block_encrypt you just need to init softdevice. you init ble for other purposes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/11867?ContentTypeID=1Mon, 04 Aug 2014 11:46:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:97536811-03b3-4d07-a74c-f594671fb1e1Ivan G&#243;mez<p>Finally I found out what i was doing wrong. The problem was that I needed to call ble_stack_init() before use the sd_ecb_block_encrypt(). Now I&#39;m having problems in order to get the timestamp, because always I try to get it the Kit stops working.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/11866?ContentTypeID=1Wed, 30 Jul 2014 16:42:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b3b1bf9-97fa-4b57-ae3c-cfdb8b8b97aecocoa<p>Hi,</p> <p>is little difficult to figure out without know what&#39;s inside the called custom functions.</p> <p>Try run your code before starting the advertising and you can debug it without problems at AES level.</p> <p>I see <code>advertising_init()</code> after the call to <code>advertising_start()</code> and not before.</p> <p>You call <code>advertising_init()</code>in for loop, but there is inside <code>ble_advdata_set()</code> or <code>sd_ble_gap_adv_data_set()</code> with the updated values to be advertised ?</p> <p>-c</p><div style="clear:both;"></div>