HCI_LE_Read_Local_P-256_Public_Key Command Not Working on Giga R1

[Gokikun]

I've been adding support for Secure Connect / Passkey Pairing using an UNO R4. Specifically, the central is the arduino who is instigating the pairing and encryption with a peripheral. This is working on an UNO R4 but unfortunately, it is not working on a Giga R1.

Issuing the HCI_LE_Read_Local_P-256_Public_Key command resulted with an HCI_Command_­Status as follows:

According to the BLE specification, a status of 0x1 is "Unknown HCI Command".

An HCI_LE_­Read_­Local_­P-256_­Public_­Key_­Complete event was never received.

For comparison, on an UNO R4, issuing the HCI_LE_Read_Local_P-256_Public_Key command resulted with an HCI_LE_­Read_­Local_­P-256_­Public_­Key_­Complete event containing the public key. A corresponding HCI_Command_­Status was never received.

Any ideas why the above is not working on a Giga R1?

[Gokikun]

Just a short follow-up.

Looks like the cryptographic capabilities are not supported by the Murata 1DX (as far as I can tell) but handily, there is the ATECC608A.

I got going again by replacing the HCI calls such as P-256, random, and ECDH with the equivalents from the ATECC608A.