I2P is a fully encrypted private network layer. Protect your online activity from surveillance and censorship with built-in end-to-end encryption.
An End-to-End Encrypted Peer-to-Peer Chat System with Self-Sovereign Identity
Today, messaging applications are the most popular medium of communication over the Internet. As their use has grown, different security and privacy concerns have received the attention of users. Users consider what they send with others to be private, tamper-proof and secure without getting exposed to unintended entities. Furthermore, users are concerned whether their data is exposed if the service provider encounters any cyber attack. In this paper, we propose a Self-Sovereign Identity (SSI)-based End-to-End Encrypted Peer-to-Peer (E2EE P2P) chat system that does not rely on any specific provider, enhancing user privacy and security. The system leverages decentralized identifiers (DIDs) to establish secure communication channels using the DIDcomm (DID Communications) protocol, which ensures the privacy of user data. We also introduce a secure file sharing mechanism that ensures that all data, including messages, are stored solely on the user's device, further safeguarding user privacy. The system is developed following the Design Science Methodology, addressing probable threats and satisfying different functional and security requirements. The architecture and its implementation details are discussed with the subsequent use cases and protocol flow. Finally, we analyze different aspects of the system.
Privatemode AI - The always encrypted AI service
Privatemode is the first AI service that protects the confidentiality of your data end-to-end. Use AI without security and privacy worries.
Tinfoil - Private AI
AI that keeps your data private at all times. Fast, powerful, and verifiable, thanks to secure hardware enclaves.
libp2p - A modular network stack
Run your network applications free from runtime and address services, independently of their location.
Internet
The Internet is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a network of networks that comprises private, public, academic, business, and government networks of local to global scope, linked by electronic, wireless, and optical networking technologies. The Internet carries a vast range of information services and resources, such as the interlinked hypertext documents and applications of the World Wide Web (WWW), electronic mail, discussion groups, internet telephony, streaming media and file sharing.
The Open Anonymity Project
The Open Anonymity Project is a research & engineering effort building tools, infrastructure, and user-facing software for AI user privacy.
ar.io - Permanent Cloud Storage for Critical Data
Protect critical data with ar.io's permanent, decentralized cloud storage. Ransomware-proof, always accessible, and pay once for forever access. Zero data lost since launch.
Minimum viable decentralization – John Backus – Medium
If you want people to use your product, decentralize the bare minimum. Lessons from Freenet, I2P, Darknet markets, and Reddit.
Every Voice and Video Call on Discord Is Now End-to-End Encrypted
As of March 2026, E2EE is now enforced for every voice and video call on Discord. This represents a multi-year commitment, and Discord’s VP of Engineering is here to talk about why it matters.
Web-based cryptography is always snake oil
Nowadays, there is an epidemic of web applications purporting to offer “end-to-end” encryption. Examples might range from a file upload service, which allows you to upload and share files of arbitrary size and promises “end-to-end encryption”; or a web-based password safe service which claims that it can't see your passwords because they're encrypted; or a web-based cryptocurrency wallet.
Architecture
Overview of Ente's end-to-end encrypted architecture—learn how your data is encrypted on-device, securely shared, and safely stored using cryptography.
NextGraph - Decentralized, encrypted and local-first platform and framework, towards the better internet we all deserve!
Features a social network, shared documents, productivity tools, an app store, and more! You can use NextGraph for free : resilient, secure, private and encrypted. You own your data and software! Developers can build new web3.0 local-first apps with our open source framework, based on open standards, with CRDTs, E2EE, Linked Data, JSON, Markdown...
The Deceptive Complexity of P2P Connections and the Solution We Found
Discover how ARK Builders navigated a maze of p2p network technologies, comparing WebRTC, libp2p, and Iroh to find the perfect fit.
Threat Model
A private, p2p alternative to Slack and Discord built on Tor & IPFS - TryQuiet/quiet