End-to-end encryption for audio and video calls

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description: 

• Audio/Video packets encryption using AES 128-bit and 256-bit key lenght

• State-of-the-art ciphering key exchange with ZRTP, using safe Elliptic Curves Diffie-Hellman (ECDH) X25519 and X448, and Short Authentication String (SAS) to prevent Man-in-the-middle attacks

• WebRTC-compatible end-to-end encryption with SRTP-DTLS