BitChat, a messaging app developed by former Twitter CEO Jack Dorsey (now CEO of X), enables users to communicate encrypted conversations without internet connectivity.
In a post on X on Sunday, Dorsey unveiled the app, which is currently in its early phases.
He explained that it was a side project that investigated decentralized communication, message encryption, and Bluetooth mesh networking.
He commented, “My weekend project to learn about relays, store and forward models, message encryption models, Bluetooth mesh networks, and a few other things.”
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The app’s source code and white paper have been made public on GitHub, and iOS users may now access a beta version of the app through TestFlight.
HOW IT OPERATES
According to the description given by Dorsey, BitChat uses a store-and-forward architecture where messages are transmitted from one Bluetooth-enabled device to another until they reach the appropriate receiver.
According to the document, the application is capable of end-to-end encryption, with the noise protocol framework (NPF) being used for authentication and Curve25519 public keys for message security.
Internet relay chat (IRC), a text-based system popular in the early internet era, served as the model for its simple interface.
Dorsey’s long-standing interest in decentralized technology is in line with BitChat.
Prior to departing its board in May 2024, the American businessman had also supported Bluesky, a decentralized social media platform.
Since leaving his position as CEO of Twitter in 2021, he has directed his company, Block, Inc. (previously Square), toward digital payments and Bitcoin infrastructure.
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