Privacy, encryption and secure delivery

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BitChat stores messages only in device memory and deletes them after delivery or a set timeout, providing ephemeral messaging with no central database and securing content through end-to-end encryption.
BitChat secures group chats with passwords and keys generated using Argon2id, a memory-hard algorithm that protects against brute-force attacks.
BitChat uses encryption such as X25519 for secure key exchange between devices, ensuring that only intended recipients can read the messages.
BitChat encrypts messages based on their context, whether private, group, or broadcast, and automatically splits large messages into 500-byte chunks to ensure efficient delivery over its Bluetooth-only mesh network.
BitChat uses AES-256-GCM to encrypt messages after keys are exchanged, ensuring message confidentiality in a decentralized network without relying on servers or the internet.

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