LPC55S69 : ICB-AES usage

[EugeneHiihtaja]

Hello !

From hashcrypt SDk example it is quite clear how to use it in ECB and other modes.

But do you have ICB mode usage example what is explained in UM:

48.11.7 Using Indexed Code Book AES (ICB-AES) engine

?

Specially when key should be loaded from PUF ?

Regards,

Eugene

[xiangjun_rong]

Hi, Eugene,

As you know that currently we have implemented ECB, CBC and CTR mode of AES algorithms in SDK package based on LPC55S6x, regarding the ICB-AES mode, I have searched in our internal data base, we have neither the code nor the further documentation for the mode.

I am sorry for not helping you.

BR

XiangJun Rong

[EugeneHiihtaja]

Hi xiangjun.rong‌ !

Can you ask examples from headquarter . HW is validated somehow for sure and some examples should be available.

Block is public in UM and should be supported by SW somehow.

Regards,

Eugene

[xiangjun_rong]

Hi, Eugene,

Unfortunately, we have not the plan to develop the code for the ICB-AES mode till now.

BR

XiangJun Rong

[cp1]

I've also tried setting up ICB-AES, but have run into various problems despite having normal AES ECB working fine.  Would be great to see some proof of concept by NXP!