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.