[OpenSIPS-Users] TLS 1.3 with wolfssl.so not working

[nz deals]

Hi everyone,

I’m running *OpenSIPS 3.4.13* with *wolfSSL 5.4.0*, built with --disable-shared
--enable-static.

I’m configuring the TLS method as TLSv1_3. TLS 1.2 works correctly with the
same endpoint/configuration, but TLS 1.3 fails during the handshake with:

SSL3 alert read:fatal:handshake failure
SSL_connect:error in error
139734869747008:error:14094410:SSL routines:ssl3_read_bytes:sslv3
alert handshake failure:../ssl/record/rec_layer_s3.c:1571:SSL alert
number 40

The tls_wolfssl.so module contains wolfSSL 5.4.0 and was compiled with
DWOLFSSL_TLS13, HAVE_AESGCM, HAVE_CHACHA, HAVE_CURVE25519, etc.

Has anyone experienced TLS 1.3 handshake failures with *OpenSIPS + wolfSSL*,
particularly when TLS 1.2 works but TLS 1.3 does not?
Are there any suggestions from someone in the community ?



Thanks

Regards,
Jason
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