The encryption mechanism is called DTLS-SRTP, and you might think of it best as just TLS over UDP. The certificate is dynamically generated by RTPEngine. It is somewhat simpler than what you might think of as full-blown TLS. The APIs used for this are indeed OpenSSL.

—

Sent from mobile, apologies for brevity and errors.

On Apr 9, 2024, at 6:02 PM, David Cunningham via sr-users <sr-users@lists.kamailio.org> wrote:

Hello,

We're using kamailio, with rtpengine for RTP encryption/decryption. It works fine but I would like to understand the integration better.

How does rtpengine get the TLS certificates, and what crypto library does it use (openssl?).

Thank you in advance,

--
David Cunningham, Voisonics Limited
http://voisonics.com/
USA: +1 213 221 1092
New Zealand: +64 (0)28 2558 3782
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