Is Chime secure?
Yes. Chime is secure for any enterprise.
All communications between conference participants and the Chime server are secured and encrypted. Participants may reside anywhere in the world on the enterprise network or on the Internet.
All signaling between participants, chat interactions as well as content sharing between participants and the CafeX Chime server are encrypted using secure WebSockets.
All media is secured via secure WebRTC media DTLS-SRTP or Secure Real-Time Media Flow Protocol (RTMFP), which is a protocol suite developed by Adobe Systems for encrypted, real-time media between peers and over the Internet (RFC 7016). DTLS is a standardized protocol built into all browsers that support WebRTC, designed like other encryption protocols to prevent eavesdropping and information tampering. DTLS itself is modelled upon the stream-orientated TLS, a protocol which offers full encryption with asymmetric cryptography methods, data authentication, and message authentication.
All signaling between the the CafeX server and the SIP conferencing server / MCU, SBC or Expressway can be encrypted via SIP TLS. Media is not encrypted as of yet, but sRTP support is planned. The default is 128 bit encryption, but more cipher suites are available.