100x100 SQRL Logo   Secure Quick Reliable Login
A highly secure, comprehensive, easy-to-use replacement
for usernames, passwords, reminders, one-time-code
authenticators . . . and everything else.
SQRL Explained
(22 pages)
Downloaded 26,482 times.
Operating Details
(14 pages)
Downloaded 974 times.
SQRL Cryptography
Not yet available.
SQRL On The Wire
Not yet available.

This document set provides a complete description, technical overview and explanation of every feature of the SQRL system. Various SQRL clients and server components currently exist for Windows, Linux & macOS (with WINE), Android, iOS, Chrome, Firefox & Edge. And SQRL demo websites may be used to experiment with SQRL's operation and features.

The SQRL Forums are online and available to anyone who is curious to learn more, and GRC's v1.0 release of the reference SQRL client for Windows can be downloaded with the links below:

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“SQRL Explained” Changes & Updates

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