Does Zephyr AES encrypt/decrypt APIs use hardware acceleration?

RE: Does Zephyr AES encrypt/decrypt APIs use hardware acceleration?

snowuyl — Tue, 06 Jun 2023 14:11:13 GMT

Thanks for your great support!

Sigurd Hellesvik — Tue, 06 Jun 2023 09:00:47 GMT

Bluetooth Low Energy adds encryption after you have paired two devices.

And our examples will use HW by default for Bluetooth LE encryption.

So if you for example bond with our Peripheral LBS sample, it will use HW for encryption.

Regards,
Sigurd Hellesvik

snowuyl — Mon, 05 Jun 2023 14:23:09 GMT

Could you also provide sample code?

Sigurd Hellesvik — Mon, 05 Jun 2023 10:34:26 GMT

Yes, our nRF chips have the AES CCM mode encryption peripheral for this, which is specialized for Bluetooth Low Energy encryption.

This is used by default for Bluetooth LE encryption.

Regards,
Sigurd Hellesvik

snowuyl — Sat, 03 Jun 2023 00:36:20 GMT

Thanks for your reply! I use ncs v2.3.0. I plan to. use aes for BLE especially for Nordic UART service (NUS).

Sigurd Hellesvik — Fri, 02 Jun 2023 11:23:44 GMT

Hi,

Which version of the nRF Connect SDK do you use?

Do you plan to use AES for Bluetooth Low Energy?

Regards,
Sigurd Hellesvik