Keybase
Keybase is a cross-platform key directory and secure communications platform that uses public-key cryptography to bind online identities to cryptographic keys. It enables end-to-end encrypted chat, secure file storage, and team collaboration. The service combines a public key directory with proof-based identity verification, allowing users to prove ownership of social media accounts and other online identities so that others can verify control of a given key.
Key features include end-to-end encrypted messaging and file sharing, a versioned encrypted file system called KBFS
In terms of security, Keybase emphasizes client-side encryption, with private keys stored on user devices and
Keybase was launched in 2014 and was acquired by Zoom Video Communications in 2020, after which it