https://devzone.nordicsemi.com/f/nordic-q-a/116613/hash-of-image-during-confirm-the-firmwareHi, I&#39;m looking to implement the smp protocol in my central device based on nrf5 sdk, in order to update my new peripheral device based on ncs v2.6.1. My questions are : how to generate the hash image sended when you want to confirm the image previouslyen-USTelligent Community 13Fri, 22 Nov 2024 12:01:09 GMThttps://devzone.nordicsemi.com/thread/511639?ContentTypeID=1Fri, 22 Nov 2024 12:01:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:45b4a411-488a-44dc-a9f0-efddbaa15c6dVidar Berg<p>Hi,</p> <p>You can use the &quot;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/services/device_mgmt/smp_groups/smp_group_1.html">state of images</a>&quot; command to retreive a list of images in the mcuboot slots and the hash digests. You can use this to determine which image you want to confirm.</p> <p>Regards,</p> <p>Vidar</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/511607?ContentTypeID=1Fri, 22 Nov 2024 09:26:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d21fc3d0-ce28-4ea7-bc89-c9500601de53Julien<p>Hi&nbsp;</p> <p>To complete, i found how to retrieve the hash directly in the .bin file,&nbsp;in decrypting image header and then image_tlv.</p> <p>But for my information, i would like to know with which data the sha are computed.</p> <p>Best regards,</p> <p>Julien</p><div style="clear:both;"></div>