Certificate and key are not loaded when using WolfSSL

[njso151Mk]

• My goal is: Use Wolfssl for tls 1.2 communication
• The result I saw: no tls communication possible
• My question is:

Between creating the context SSL_CTX_new and establishing the SSL connection SSL_CTX_new , the certificate/key must be loaded. If this does not happen, SSL_CTX_new aborts.

Environment

• mongoose version: _7.19
• Compiler/IDE and SDK: Gcc
• Used Lib: wolfSSL

[scaprile]

Are you having an issue or asking a question ? Moving to questions
WolfSSL CI/CD tests pass: https://github.com/cesanta/mongoose/actions/runs/22976590148/job/66706580384
7.19 is obsolete
Please see our documentation, and follow the guidelines in our tutorials.
https://mongoose.ws/documentation/tutorials/tls/
Thank you

[njso151Mk]

I have an issue in mg_tls_init function on stm32 with wolfssl:

mg_tls_init:

SSL_CTX_NEW(TLS_server_method());

tls->ssl = SSL_new(tls->ctx) will always fail if no certificate is loaded.

WolfSSL returns NO_PRIVATE_KEY = -317, /* need the private key */

[scaprile]

D'you see ? The issue template is there for a reason. WolfSSL currently does not work with our TCP/IP stack (you don't say) For other stacks, follow the tutorial I linked. Check your code, check your versions, no one has your issue.

…

On Thu, Mar 12, 2026, 7:49 AM njso151Mk ***@***.***> wrote: I have an issue in mg_tls_init function on stm32 with wolfssl: mg_tls_init: SSL_CTX_NEW(TLS_server_method()); tls->ssl = SSL_new(tls->ctx) will always fail if no certificate is loaded. WolfSSL returns NO_PRIVATE_KEY = -317, /* need the private key */ — Reply to this email directly, view it on GitHub <#3464 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABOEEKYJQAN7M5OYRXZVVUL4QKI2LAVCNFSM6AAAAACWPPZATOVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTMMBZGYZDMMQ> . You are receiving this because you modified the open/close state.Message ID: ***@***.***>