how to encrypt ble dfu zip file

[nikunj8086]

hi, 

i am doing a project where i have to perform an ble dfu,

but our customer wants an encrypted dfu zip file package.

so my question is how to encrypt ble dfu zip file and how the device will decrypt  the dfu image back and update it self.

currently i am using nRF SDK 15.3.0 and have Nordic button-less dfu service as reference and mcu i am using is nRF52810.

please help,

Thank you 

[Vidar Berg]

Hi,

We don't have any examples to demonstrate encrypted DFU, but there are some threads on this in the forum which may help you implement it. 

- https://devzone.nordicsemi.com/f/nordic-q-a/22375/dfu-firmware-encryption

- https://devzone.nordicsemi.com/f/nordic-q-a/5871/nrf51822-aes-hw-module-clarification#post-id-31127