Currently, I'm using TLS and it works fine. But eventually, TLS is just used to agree upon a secret key. And both client and Kamailio use that secret key to encrypt message.

In my solution, I have a fixed secret key. And client encrypt SIP message with that secret key.

What code should I insert in Kamalio to decrypt it?
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Khoa Pham
HCMC University of Science
Faculty of Information Technology