zoom

All posts tagged zoom

webrtcH4cKS: ~ Does your video call have End-to-End Encryption? Probably not..

Posted by Philipp Hancke on April 1, 2020
Posted in: Standards.
Tagged: , , , .
12 comments

Time for another opinionated post. This time on… end-to-end encryption (e2ee). Zoom apparently claims it supports e2ee while it can not satisfy that promise. Is WebRTC any better?

Zoom does not have End to End Encryption

Let’s get to the bottom of things fast: Boo Zoom!

I reviewed how Zoom’s implements their web client last year.

I’m not really surprised of their general lack of e2ee given that their web client did not provide any encryption on top of TLS or WebRTC’s DataChannel. For reasons we will discuss below, this means they weren’t doing any obvious e2ee there. ...  Continue reading

webrtcH4cKS: ~ How Zoom’s web client avoids using WebRTC (DataChannel Update)

Posted by Philipp Hancke on September 8, 2019
Posted in: Reverse-Engineering.
Tagged: , , , , , .
3 comments

Editor’s Note: This post was originally published on October 23, 2018. Zoom recently started using WebRTC’s DataChannels so we have added some new details at the end in the DataChannels section.

Zoom has a web client that allows a participant to join meetings without downloading their app. Chris Koehncke was excited to see how this worked (watch him at the upcoming KrankyGeek event!) so we gave it a try. It worked, removing the download barrier. The quality was acceptable and we had a good chat for half an hour. ...  Continue reading