AES128 from SoftDevice

[dtran11]

I'm using a nrf52810 with limited flash size especially after adding a UART bootloader DFU and S112. I added uECC for connecting security. Now I need AES128 for my own application design. I can't afford to add any of the other crypto backend like embedtls or oberon. Can I add just aes128 or is it available through the SoftDevice api? Thanks

[Turbo J]

The AES-128 ECB hardware is available via softdevice sd_ecb_xxx functions, but it only provides AES ECB encrypt.

That is still "enough" AES to implement the remaining parts of AES-128-CBC in software with reasonable performance. You don't want to use ECB directly in most cases where encryption is required.

[dtran11]

Thank you. I'll give that a try. Thanks