With the rise of government surveillance programs, Tox, a FOSS initiative, aims to be an easy to use, all-in-one communication platform that ensures full privacy and secure message delivery. Tox must use UDP simply because hole punching with TCP is not as reliable. However, Tox does use TCP relays as a fallback if it encounters a firewall that prevents UDP hole punching.
 
It helps to chat instantly across the globe with Tox's secure messages. It supports Encrypted voice calls, Screen sharing, File sharing, Video calls, Share with group or team. Tox has no central servers that can be raided, shut down, or forced to turn over data — the network is made up of its users.

With the rise of government surveillance programs, Tox, a FOSS initiative, aims to be an easy to use, all-in-one communication platform that ensures full privacy and secure message delivery. Tox must use UDP simply because hole punching with TCP is not as reliable. However, Tox does use TCP relays as a fallback if it encounters a firewall that prevents UDP hole punching.

Tox - The future of online communications.

Simple encrypted web chat. Powered by socket.io, the web cryptography API. This project is an example of how client side encryption works and how you can integrate it as a chat service. Darkwire server is a Node.js application that requires redis. The Darkwire.io web client is written in JavaScript with React JS and Redux. It uses a combination of asymmetric encryption (RSA-OAEP), symmetric session keys (AES-CBC) and signing keys (HMAC) for security.

Darkwire.io -  End-to-end encrypted instant web chat

The world's most private and secure chat - open-source, decentralized, and without global identities of any kind. You can use it from the terminal UI, with all contacts and groups in one window. It is a federated chat system with end to end encryption support and low risk of man in the middle attack. 
 
It solves privacy problem by making both messages and contacts accessible only on client devices, reducing the role of the servers to simple message brokers that only require authorization of messages sent to the queues, but do NOT require user authentication.
 
Simplex messaging protocol (SMP) for messaging via secure persistent queues will serve as the low level protocol for SimpleX chat. It uses different encryption keys for each message queue - the key is passed via existing secure channel - e.g. QR code or another simplex queue.

The world's most private and secure chat - open-source, decentralized, and without global identities of any kind. You can use it from the terminal UI, with all contacts and groups in one window. It is a federated chat system with end to end encryption support and low risk of man in the middle attack. 

SimpleX Chat - Decentralized chat with a focus on users’ privacy

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Tox - The future of online communications.

Darkwire.io - End-to-end encrypted instant web chat

SimpleX Chat - Decentralized chat with a focus on users’ privacy

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Tox - The future of online communications.

Darkwire.io - End-to-end encrypted instant web chat

SimpleX Chat - Decentralized chat with a focus on users’ privacy

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