ST-SAFEA1 interface with STM32L496ZGT6 microcontroller for USB Authentication

[Sagar_Gowda]

I am trying to implement authenticate a device from flashing new code from unauthorized user using ST-SAFEA1. only a valid user can flash new code in DFU mode using USB peripheral.
Issue is I am can't be able to authenticate the device and generate public and private key to make handshake with USB peripheral.

[CMYL]

Hello @Sagar_Gowda 

According to datasheets of STSAFE-A12 and STSAFE-A11 the only supported communication interface is the I2C. See page 2 of the below datasheets:

- Datasheet - STSAFE-A110 - Authentication, state-of-the-art security for peripherals and IoT devices

- Datasheet - STSAFE-A120 - Secure authentication companion device for consumables, accessories, and connected objects

Best regards,

Younes