Mark Riddoch

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6 years ago.

Does anybody know how to use mbed-http with a server that has a self signed certificate?

I'm using a NUCLEO-F401RE and trying to use a REST API from a server that uses a self signed certificate. Initially my problem was that's the certificate validation failed, presumably because the CA was not valid. So I changes the call in TLSSocket to disable the authentication, i.e.

mbedtls_ssl_conf_authmode(&_ssl_conf, MBEDTLS_SSL_VERIFY_NONE);

But now I get mbedtls_ssl_handshake() failed: -0x6c00 (-27648): SSL - Internal error (eg, unexpected failure in lower-level module)

Whereas with the previous version, MBEDTLS_SSL_VERIFY_REQUIRED, I got Sent: mbedtls_ssl_handshake() failed: -0x2700 (-9984): X509 - Certificate verification failed, e.g. CRL, CA or signature check failed

The certificate is a SHA256 with RSA encryption, in case this make a difference.

Thanks Mark

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