topic Re: wolfssl on s32k144 in S32K

wolfssl on s32k144

Chandrakant — Mon, 16 Feb 2026 09:39:11 GMT

Hello team, I am trying to use RSA-2048 based Signature generation & Verification using wolfssl on s32k144EVB. So I used wolfssl source files from NXP folder found under design studio installation & built it as static library. I have attached the user_settings.h file for which i'm building the application. I'm getting stack smashing error when generating signature for data. "unsigned char* privKey" is der pkcs1 key 2048bit , "size_t privKeyLen" is the sizeof privKey byte array is 1218 bytes. Also i've attached the test application source file here. Requesting your help with this issue.

Re: wolfssl on s32k144

lukaszadrapa — Tue, 17 Feb 2026 12:01:01 GMT

Hi @Chandrakant

wolfSSL is not supported directly by NXP. Issues such as RSA configuration, build flags, memory model problems, or stack usage errors are outside of NXP’s supported scope.

For wolfSSL‑specific help, please use:

wolfSSL Community Support https://www.wolfssl.com/forums/

Regards,

Lukas

Re: wolfssl on s32k144

Chandrakant — Tue, 17 Feb 2026 16:48:13 GMT

OK @lukaszadrapa, Thanks will check with wolfssl