Tech entrepreneur Jack Dorsey has unveiled a groundbreaking decentralized messaging application, Bitchat, which aims to revolutionize the way we communicate by operating independently of the internet and without the need for personal information.
Innovative Communication through BLE Mesh Networks
Described by Dorsey as a “weekend project,” Bitchat facilitates peer-to-peer messaging through Bluetooth Low Energy (BLE) mesh networks. This innovative approach allows users to communicate over distances exceeding 300 meters, even when cellular or Wi-Fi connectivity is unavailable. Currently, the app is in beta testing via Apple’s TestFlight, with early access slots quickly filled following its announcement.
A whitepaper released on GitHub outlines the app’s functionality, emphasizing direct device-to-device messaging. Each phone operates as both a sender and receiver, enabling multi-hop message transfers. This means that a message can traverse through multiple nearby devices to reach its intended recipient, significantly extending the range of communication.
One of Bitchat’s standout features is its commitment to user privacy. The app does not require a phone number, email address, or any form of account, making it a truly decentralized platform. This infrastructure-free design enhances resilience against censorship and network disruptions. Messages are stored temporarily in device memory, with an automatic caching system that ensures delivery when the recipient reconnects to the mesh network.
Message Retention and Security Features
Bitchat incorporates a tiered message retention system: standard messages are automatically deleted after 12 hours, while those marked as “favourites” are retained indefinitely. For enhanced security, the app employs end-to-end encryption, utilizing the Curve25519 elliptic curve alongside the AES-GCM encryption algorithm, providing a robust layer of data protection.
Functionality-wise, Bitchat offers familiar tools such as user mentions and topic-based rooms, reminiscent of channels found on platforms like Discord. Additionally, users can secure rooms with passwords to ensure privacy and control over their communications.
Dorsey has emphasized the app’s unique position within the current messaging landscape, highlighting its infrastructure-free design and lack of identifying requirements as a compelling alternative to traditional, surveillance-prone centralized platforms.
