Hello Andy, 

The PSA driver wrapper is the intended way of integrating to the PSA crypto APIs.
There are already some drivers which you can use as a reference apart from the documents provided in the mbedtls repository. 

https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/+/refs/heads/main/platform/ext/target/arm/drivers/cc3xx/psa_driver_api

https://github.com/Mbed-TLS/mbedtls/blob/development/docs/proposed/psa-driver-interface.md

GEORGIOS VASILAKIS | R&D Engineer

M +47 93 97 24 90 | Trondheim, Norway

nordicsemi.com | devzone.nordicsemi.com

 

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From: Andy Chen via psa-crypto <psa-crypto@lists.trustedfirmware.org>
Sent: Wednesday, August 7, 2024 2:29 AM
To: psa-crypto@lists.trustedfirmware.org <psa-crypto@lists.trustedfirmware.org>
Subject: [psa-crypto] PSA Crypto API Integration
 
Caution: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Hi PSA Crypto Team,


This is Andy from PUFsecurity.
We have a project and begin following the PSA Crypto API to integrate our Hardware Crypto Engine (PUFcc). However, we are encountering some issues and need your assistance.
There are several ways to integrate:
  1. Directly
  2. Via mbedTLS
  3. Using the PSA Crypto Driver
Currently, we are attempting direct integration. Is this a good choice, or do you have other suggestions?
There are many ARM applications, such as Secure Debug and Secure Boot. Completing the integration with the PSA Crypto API will ensure compatibility with these applications.
Thank you very much.

Have a Nice Day,
Andy



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