Jack Dorsey has unveiled a new venture in the realm of communication with the introduction of Bitchat, a decentralized messaging application designed to operate without the constraints of traditional internet connectivity. This innovative platform utilizes Bluetooth Low Energy (BLE) mesh networks, enabling peer-to-peer messaging in a public domain setting. Dorsey emphasizes that Bitchat offers a heightened level of security through end-to-end encryption, ensuring that users can communicate with confidence.
In a recent post on X, Dorsey referred to Bitchat as a “weekend project,” while a detailed whitepaper on GitHub elaborates on its functionalities. Currently in beta testing via Apple’s TestFlight program, the app quickly garnered attention, with available slots filled shortly after its announcement.
Bitchat Features
Bitchat harnesses the power of BLE mesh networking, allowing users to send messages directly to one another within a range of over 300 meters. Each device acts as both a client and a server, facilitating multi-hop message delivery. This unique approach not only enhances connectivity but also mitigates issues related to censorship and network outages, as the app operates independently of the internet.
The decentralized nature of Bitchat means that there is no central control, no servers, and consequently, no infrastructure dependencies. Messages sent through the app are ephemeral by default, residing only in the device’s memory. For situations where the recipient is temporarily unavailable, the app features automatic caching, ensuring that messages are delivered once the recipient is back online.
Additionally, Bitchat incorporates a tiered retention system for messages. Regular messages have a lifespan of 12 hours, while those marked as favorites are retained indefinitely. The app employs a robust encryption framework, utilizing the Curve25519 elliptic curve and AES-GCM authenticated encryption algorithm to safeguard user communications.
Notably, Bitchat operates without the need for phone numbers, email addresses, or any permanent identifiers, further enhancing user privacy. The app also includes familiar features found in other messaging platforms, such as mentions, which allow users to notify specific individuals about new messages. Furthermore, users can create topic-based rooms for discussions, akin to channels on Discord, with the option to secure these rooms with passwords for added protection.
