Dear Farhad,

Sure, the thing you need to do is to call mbedtls_ssl_conf_authmode( conf, MBEDTLS_SSL_VERIFY_REQUIRED ) where conf is the ssl_config of the server. For more details, see that function's documentation (in ssl.h). For an example, see the command-line option auth_mode in programs/ssl/ssl_server2.c.

Hope this helps!

Best regards,
Manuel

From: mbed-tls <mbed-tls-bounces@lists.trustedfirmware.org> on behalf of saghili via mbed-tls <mbed-tls@lists.trustedfirmware.org>
Sent: 05 February 2021 17:34
To: mbed-tls@lists.trustedfirmware.org <mbed-tls@lists.trustedfirmware.org>
Subject: [mbed-tls] DTLS Mutual authentication

Dear,

I would like to have mutual authentication using dtls_client.c and
dtls_server.c examples.
In the current version of the example, the client does not send his own
certificate and the server does not verify the certificate of the
client.
Could you please provide me the changes that I need to make in both
dtls_client.c and dtls_server.c examples?

Best regards,
Farhad
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