nrfutil settings generate generates different boot loader settings every timehttps://devzone.nordicsemi.com/f/nordic-q-a/71068/nrfutil-settings-generate-generates-different-boot-loader-settings-every-timePardon my ignorance of the nuances of Security and Encryption but what I am observing is a bit perplexing. Every time I run the nrfutil command to generate the bootloader settings, with the same input parameters, I get a &#39;different&#39; settings file. Ien-USTelligent Community 13Fri, 29 Jan 2021 16:54:58 GMTRE: nrfutil settings generate generates different boot loader settings every timehttps://devzone.nordicsemi.com/thread/292042?ContentTypeID=1Fri, 29 Jan 2021 16:54:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8aa7eadc-afae-44ef-a89b-e1e440771f63RVM<p>Thanks.</p><div style="clear:both;"></div>RE: nrfutil settings generate generates different boot loader settings every timehttps://devzone.nordicsemi.com/thread/292001?ContentTypeID=1Fri, 29 Jan 2021 13:17:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cddf9c6d-dd6e-4a66-92f4-94b51fae1d33Vidar Berg<p>Hi,</p> <p>The ECDSA signature used for <span><a title="Boot validation" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_secure_boot.html?cp=7_1_3_5_0_8_1#secure_boot_validation">Boot validation</a></span> of the application image is re-generated every time you generate a new settings page, and the signature will change between every iteration because the algorithm includes a random component.</p> <p>Cheers</p> <p>Vidar</p><div style="clear:both;"></div>