AT%CMNG=1, 3rd party board, not showing true stored certificate valueshttps://devzone.nordicsemi.com/f/nordic-q-a/98218/at-cmng-1-3rd-party-board-not-showing-true-stored-certificate-valuesHello, I am trying to verify the key values I uploaded into the NRF9160 on a 3rd party board - I know with their default application, they did not allow reading back of these certificates. We are developing our own application to be hosted on this boarden-USTelligent Community 13Wed, 29 Mar 2023 12:20:33 GMTRE: AT%CMNG=1, 3rd party board, not showing true stored certificate valueshttps://devzone.nordicsemi.com/thread/418098?ContentTypeID=1Wed, 29 Mar 2023 12:20:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:91db2a04-d5f8-40d5-9806-1f674253f284Charlie<p>Ok, then you can update the MFW to the latest(<a href="https://www.nordicsemi.com/Products/Development-hardware/nrf9160-dk/download">nRF9160 DK - Downloads - nordicsemi.com</a>) and manage your own certificates.</p> <p>Best regards,</p> <p>Charlie</p><div style="clear:both;"></div>RE: AT%CMNG=1, 3rd party board, not showing true stored certificate valueshttps://devzone.nordicsemi.com/thread/418081?ContentTypeID=1Wed, 29 Mar 2023 11:28:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9557250a-355d-4ffe-943c-2a27fca995c8noahalessi<p>Thanks Charlie.&nbsp;All I was hoping to do is read the SHA-256 digest of the key for a sanity check - the 0x0x0x.... is not very useful.</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1680088965006v1.png" alt=" " /></p><div style="clear:both;"></div>RE: AT%CMNG=1, 3rd party board, not showing true stored certificate valueshttps://devzone.nordicsemi.com/thread/418076?ContentTypeID=1Wed, 29 Mar 2023 11:08:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0113c2ee-0b7d-4bb3-8b6b-3785953dd9b4Charlie<p>Hi Noah,</p> <p>According to&nbsp;<a href="https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/security/cmng.html">Credential storage management %CMNG</a>, from MFW&nbsp;<strong><span>v1.3.x≥2,&nbsp;</span></strong><span>SHA-256 digest of the entity replaced</span><span>&nbsp;the previous &quot;0x0x0x0.....&quot;.</span></p> <p>Reading types 1, 2, and 3 are not supported since they are the keys that should&nbsp;only be known by the application developer.</p> <p><span>Best regards,</span></p> <p><span>Charlie</span></p><div style="clear:both;"></div>