Is voice and video traffic encrypted on Legaler?
Yes, all media traffic is encrypted no matter the endpoint you use (web or mobile) or the session setup you choose (P2P or multiparty). That means that you are safe when using Legaler even if use it in an open public hotspot.
What are the encryption algorithms and strength of the keys being used?
Endpoints use the AES cipher with 128-bit keys to encrypt audio and video, and HMAC-SHA1 to verify data integrity.
What keys are being used for the encryption?
The endpoints generate random keys at the beginning of the session and in addition they change periodically during the conversation to make it even safer.
Does encryption have an impact on bandwidth and quality of the video-conference?
It does, but it is very slight. Encryption increases the length of each audio and video packet by 8 bytes, but that is less than 1% of the typical bitrate of a Legaler session. Regarding the delay, the SRTP encryption framework was designed specifically for real-time applications, and the impact is not noticeable at all.
Does encryption have an impact on CPU or battery consumption?
Yes, but the cost of encoding and decoding audio and video is significantly higher than the cost of encrypting and decrypting.