topic Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM in S32G

HSE is responding with HSE_SRV_RSP_INVALID_PARAM

Prithviraj_k — Mon, 09 Mar 2026 09:14:34 GMT

Microcontroller :S32G399A
HSE FW :2_64

I am performing Leaf certificate verification on the NXP Bootloader side using Intermediate Public key ,I pass the tbs data ,sign(R &S ) and Public key that is stored in NVM Slot in HSE.

hseResponse_verify = HSE_Ecdsa(HSE_AUTH_DIR_VERIFY, HSE_HASH_ALGO_SHA2_256,NVM_ECC_BOOT_KEY_HANDLE,message, ARRAY_SIZE(message),FALSE,signR ,signS, signRLen, signSLen).

The HSE is responding with HSE_SRV_RSP_INVALID_PARAM

Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM

chenyin_h — Mon, 09 Mar 2026 10:42:33 GMT

Hello, @Prithviraj_k
Thanks for your post.

1. I understand that you added your own implemented functions in the NXP bootloader to do the test, is it right?

2. Where is the data stored?

3. Which version of your NXP bootloader used?

4. May I know if the issue could be reproduced in any of the NXP examples?

Chenyin

Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM

Prithviraj_k — Mon, 09 Mar 2026 14:06:55 GMT

Hello Chenyin ,Thanks for the reply
1.Yes right .I was performing Certificate chain verification ,so i was able to verify Intermediate certificate using Root Public key ,Then now i was using Intermediate Public Key to Verify the Leaf (End entity Certificate).
2.I stored the Data in Global Buffer
( uint8_t message[430]={0};
)
3.Bootloader_S32G3XX_ASR_4.4_M7 Version
4.I haven't tested the example but i use the same method to pass the data ,sign and key for verification.

Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM

chenyin_h — Tue, 10 Mar 2026 02:41:15 GMT

Hello, @Prithviraj_k

Thanks for your reply.

1. For the bootloader, it may be obtained from GoldVIP, right? which GoldVIP version?

2. Would you mind sharing your original code snippet for the functions(context of function calling with parameters, and the definition of the function used),

If not convenient to share, feel free to let me know.

Chenyin

Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM

Prithviraj_k — Tue, 10 Mar 2026 07:22:46 GMT

Hello Chenyin,
Could I create a support ticket to discuss the bootloader details and share some code snippets so you can assist me further?

Re: HSE is responding with HSE_SRV_RSP_INVALID_PARAM

chenyin_h — Tue, 10 Mar 2026 07:41:18 GMT

Hello, @Prithviraj_k

Sure, you may add @chenyin to the case description, so that I am able to mention it and continue the support.

Chenyin