Lime

Jul 20, 2023

End-to-end encryption library for instant messaging

LIME is an end-to-end encryption library for one-to-one and group instant messaging, allowing users to exchange messages privately and asynchronously. It uses modern ciphering curve X448 and double ratchet algorithm for perfect forward secrecy.

LIME is composed of a portable client library coupled with a public key server developed by Belledonne Communications to allow end-to-end encryption for messaging, without having to exchange cryptographic keys simultaneously.

The library exposes a C, C++, Python and Java API for easy integration in mobile and desktop environments.

LIME supports multiple devices per user and multiple users per device.



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