I'm doing some research into the privacy of various iOS applications. My main source of data is via wireshark or Burp (HTTP/S proxy). This has been rather successful for MiTM for decrypting HTTPS traffic, however the app I'm focusing on right now appears to encapsulate XMPP/Jabber traffic in TLS, hence it does not go via the proxy and I cannot decrypt.
Is anyone aware of a good tool that acts as a general purpose protocol agnostic TLS proxy?, which will allow me to load a cert on the iOS device and the machine acting as the TLS proxy to ultimately view the unencrypted payload?
I've been looking at stunnel, but can't figure out if this is going to do the trick.