Secure AuthenticationのトピックAES CTR on SE050

AES CTR on SE050

ethanlooney — Mon, 26 Apr 2021 16:37:28 GMT

Hi, I am currently working on a project using AES CTR on the SE050 board. I am using the "sss_cipher_ctypt_ctr" function for this. The function seems to work for the first run, but fails to run properly and produce the desired output on the next runs using the same context.

When looking at the documenation and demos, I am unable to find any example code using this function. Do you have any example code or other projects that I could look at to get a better understanding of the "sss_cipher_ctypt_ctr" function?

Thank you.

Re: AES CTR on SE050

Kan_Li — Tue, 27 Apr 2021 07:00:30 GMT

Hi @ethanlooney ,

Would you please specify the MW version for SE050? Thanks for your patience!

Have a great day,
Kan

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Re: AES CTR on SE050

ethanlooney — Tue, 27 Apr 2021 20:37:03 GMT

Hi Kan,

I am currently running release v03.00.05.

Thank you,

Ethan

Re: AES CTR on SE050

Kan_Li — Thu, 29 Apr 2021 07:37:20 GMT

Hello @ethanlooney ,

Thanks for the information! I am wondering if you use the same parameters for the next run with "sss_cipher_ctypt_ctr" function , is it possible to share any code snippet for this function? We may try to reproduce this issue here.

Thanks for your patience!

Have a great day,
Kan