Adding End-To-End Media Encryption to Your Video Calls

We want to ensure only the people allowed can participate in a video call on the internet.` The use of WebRTC media streams with Secure Real-time Transport Protocol (SRTP) in browsers provides default encryption for peer-to-peer connections, making it suitable for small group video calls. However, as the number of participants increases, the bandwidth required to send media streams decreases the quality of the streams. To address this issue, Vonage Video uses a routed media mode with the OpenTok Media Router, which routes media streams between clients while maintaining encryption with SRTP. The new End-To-End Encryption feature provides an additional layer of security by encrypting audio and video streams with a second-layer encryption secret set at the client, sent through the media router encrypted, and decrypted on the receiving client. This feature can be enabled in Vonage Video sessions by setting the end-to-end encryption key to true, allowing clients with the same encryption secret to decode each other's media.