Is WebRTC video encrypted before streaming?

Question

I am currently creating a real-time video chat application with opentok api, whose technology is heavily based on WebRTC and would like to know how the general security aspect is handled.

Answer 1

In short, yes. All WebRTC media streams are encrypted.

Since WebRTC is a working specification, this is what I now know as of July 8, 2013.

All webRTC streams are encrypted using 128-bit AES. Whether this is sufficient to meet HIPAA or other health and technology requirements will require additional health research and knowledge.

For updated security documentation for WebRTC, I would look at the IETF docs. http://www.ietf.org/rfc/rfc3711.txt
http://www.ietf.org/rfc/rfc5764.txt

Here is a suggested security architecture: http://www.ietf.org/proceedings/82/slides/rtcweb-13.pdf