Hi Roman,

I also might not have understood the question completely.

As you mention crypto HAL API, here is the specification which defines a standardized mechanism for PSA Crypto implementations to interface with Secure elements and crypto accelerators - https://github.com/ARMmbed/mbedtls/blob/development/docs/proposed/psa-driver...

Also adding mbed-tls mailing list as the thread is crypto related..

Regards, Shebu

From: TF-M tf-m-bounces@lists.trustedfirmware.org On Behalf Of David Hu via TF-M Sent: Tuesday, October 12, 2021 4:18 AM To: Roman.Mazurak@infineon.com; tf-m@lists.trustedfirmware.org Cc: nd nd@arm.com Subject: Re: [TF-M] Adding platform specific functions to Crypto Service.

Hi Roman,

Are you asking about adding platform specific HAL API to implement PSA Crypto API function? Please correct me if I misunderstand your question.

Best regards, Hu Ziji

From: TF-M <tf-m-bounces@lists.trustedfirmware.orgmailto:tf-m-bounces@lists.trustedfirmware.org> On Behalf Of Roman Mazurak via TF-M Sent: Monday, October 11, 2021 9:45 PM To: tf-m@lists.trustedfirmware.orgmailto:tf-m@lists.trustedfirmware.org Subject: [TF-M] Adding platform specific functions to Crypto Service.

Hi all,

We would like to add a number of platform specific functions to Crypto Service API. Is it ok if such functions will not be related to cryptographic service, but such approach allows us to optimize platform design? Is there any initiative to create a Crypto Service HAL API to extend Crypto with custom functions?

Best regards, Roman.