U2F is part of the FIDO Alliance and is designed to allow online services to augment the security of their existing password infrastructure by adding a strong second factor to user login. The user logs in with a username and password as before. The service can also prompt the user to present a second factor device at any time it chooses.

The strong 2FA allows the service to simplify its Passwords (e.g. 4–digit PIN) without compromising security.

Working with U2F and Yubico#

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« This page (revision-4) was last changed on 21-Feb-2015 11:27 by jim