S32K中的主题 Re: Key Catalogs in S32K344

Key Catalogs in S32K344

silvia_zandoli2 — Wed, 17 Dec 2025 19:21:45 GMT

Hello, I'm doing a crypto test in Basic Secure Boot. I attach main.c file
At this point
rsp = HSE_ECC_ComputeSecretAndSetAes(peerPubKey);
if (rsp != HSE_SRV_RSP_OK) while (1);

it goes into while (1) because rsp has error code 0x55A5A399

Maybe the problem is how I am formatting key catalogs

Re: Key Catalogs in S32K344

lukaszadrapa — Fri, 19 Dec 2025 06:58:22 GMT

Hi @silvia_zandoli2

I can't see HSE_ECC_ComputeSecretAndSetAes function in your code. And such function is not present in the HSE framework.

Regards,

Lukas

Re: Key Catalogs in S32K344

silvia_zandoli2 — Tue, 23 Dec 2025 10:45:26 GMT

Hello, that function si defined by myself.
I report the definition. The code of the function is in the attached file. Thank you
The HSE_ECC_ComputeSecretAndSetAes function orchestrates the secure key exchange protocol. It first imports the external Peer Public Key into the HSE secure memory. Subsequently, it triggers the ECDH (Elliptic Curve Diffie-Hellman) algorithm to calculate a Shared Secret using the device's internal private key. Finally, it derives a usable 128-bit AES Session Key from this secret, which remains locked inside the HSE for secure data encryption and decryption.