end-to-end encryption

Bear with us! 🐻 # The latest release of a popular note-taking app Bear contains a new feature — end-to-end encryption of user notes. Cossack Labs team worked closely with the amazing Bear team to help deliver this feature. We are rarely allowed to disclose the details of our custom engineering work, but Bear team was awesome enough to let us highlight some important aspects of work done for them.

Hermes by Cossack Labs Cossack Labs release a proof of concept version of Hermes — a framework for cryptographically assured access control and data security. A PoC reference implementation of Hermes is Hermes-core 0.5.1, the source code and accompanying documentation of which become available on December 13, 2017. What is Hermes Hermes is a cryptography-based method of providing protected data storage and sharing that allows enforcing cryptographically checked CRUD permissions to data blocks and doesn't let server that's running Hermes do anything worse than DoS.

Intro While developing components of our products, we love to explore use cases and usability through creating real-world test stands.  0fc is a side-product of WebThemis research: while doing some protocol design for front-end clients with WebThemis services, we wanted to try it in a real-world situation. We've set ourselves a novel idea: end-to-end encrypted webchat, inclined towards client anonymity, giving zero trust to the server, built only with typical Themis primitives.