topic Re: LPC55S69 : ICB-AES usage in LPC Microcontrollers

LPC55S69 : ICB-AES usage

EugeneHiihtaja — Fri, 07 Feb 2020 09:47:05 GMT

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

Re: LPC55S69 : ICB-AES usage

xiangjun_rong — Mon, 10 Feb 2020 02:17:25 GMT

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.

XiangJun Rong

Re: LPC55S69 : ICB-AES usage

EugeneHiihtaja — Mon, 10 Feb 2020 06:26:54 GMT

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

Re: LPC55S69 : ICB-AES usage

xiangjun_rong — Thu, 13 Feb 2020 03:04:11 GMT

Hi, Eugene,

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

XiangJun Rong

Re: LPC55S69 : ICB-AES usage

cp1 — Wed, 11 Nov 2020 10:21:37 GMT

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!