A Story of three years of work, by multiple partners.
- 12-MAY-2020: The original (2017) draft for PERC-Lite has been uploaded as an informal IETF Draft here.
- 19-MAY-2020: A more recent and more formal version of SFrame has been uploaded as a standard track IETF draft here.
For several Years now, CoSMo has been providing end-to-end encryption solutions, from clients to media servers and more, fully webrtc compliant, to many. The most famous customer is maybe Symphony Communications, using an early modified version of PERC called PERC-lite, but there are many more using the second generation version called SFrame co-developed originally by Google, including the real-time streaming platform MilliCast.com for the customers in need of something better than DRM.
There was a catch though, it would not work in Browsers, one would have to go native only. Not a problem for most mobile apps, and DUO has been leveraging it for more than a year now, but still, less than ideal. Since last week, it is now possible to support SFrame in the browser. So the cat is out of the bag.
In this post we will give you some technical details about SFrame, how it is better than PERC’s double in terms of overhead, and provide a free, open-source working example, with an E2EE ready SFU! Obviously, it is nowhere close to the quality you can get from the full CoSMo E2EME packages, and don’t get me started on the key exchange, but it will illustrate the concept.Continue reading