Matrix Olm
Matrix Olm is an implementation of the Double Ratchet Algorithm cryptographic protocol, specifically designed for end-to-end encryption in the Matrix communication protocol. It provides forward secrecy and cryptographic deniability for secure messaging by handling key exchange, encryption, and decryption of messages between clients. As a core library in the Matrix ecosystem, it ensures that only the intended recipients can read messages, even if the server is compromised.
Developers should learn and use Matrix Olm when building secure, decentralized messaging applications that require end-to-end encryption, such as chat apps, collaboration tools, or IoT communication systems. It is essential for implementing privacy-focused features in Matrix-based projects, ensuring compliance with data protection regulations like GDPR by preventing unauthorized access to message content. Use cases include integrating encryption into custom Matrix clients, bots, or bridges to protect sensitive communications in real-time applications.