Secure Quick Reliable Login
A highly secure, comprehensive, easy-to-use replacement for usernames, passwords, reminders, one-time-code authenticators . . . and everything else.
Logging into any website usually requires a user to give up some private information, such as an email address and implied trust placed on said website to keep the user data secure. SQRL cuts through all of that. In the same way as Bitcoin has TNO (Trust No One) built-in, so does SQRL.
This, from the linked document...
What is SQRL?
SQRL (pronounced “squirrel”) is an open, free, intellectual property unencumbered, complete and practical system to cryptographically authenticate the identity of individuals across a network. Though principally intended for website visitor identification and account sign-in, its concepts may be extended for related applications. SQRL may be used alongside other traditional website sign-in systems, and it can replace all other systems while offering dramatic improvements in usability and security.Though designed and intended to be a two-party solution – website visitor to website – if needed, SQRL can also be used in a federated third-party mode to provide centralized identity management services to websites (e.g. login.gov).