Verify Demo signature

Last modified by Microchip on 2026/06/15 04:33

Download necessary files

Demo and corresponding signature file

  • Download the intended demo and its corresponding signature file from the demo archive table.

Public Key

Verify the demo

To verify a demo with its signature use the following command

openssl dgst -verify <public-key> -sha3-512 -signature <signature-file> -binary <demo-file>

Examples below:

$ openssl dgst -verify mpu-l4m-meta-mchp.pubkey.pem -sha3-512 -signature linux4microchip-oecore-sama5d29_curiosity-headless-2026.04.img.bz2.sign.der -binary linux4microchip-oecore-sama5d29_curiosity-headless-2026.04.img.bz2
Verified OK

$ openssl dgst -verify mpu-l4m-buildroot.pubkey.pem -sha3-512 -signature linux4microchip-buildroot-sama5d29_curiosity-headless-2026.04.img.bz2.sign.der  -binary linux4microchip-buildroot-sama5d29_curiosity-headless-2026.04.img.bz2
Verified OK