Yubikey Handbook
Now featured on the 3rd-Party Labs (3PL) - YubiKey Innovations and Inspirations compilation.
Yubikey is an hardware device manufactured by Yubico that provides several forms of strong authentication and encryption. It has many use cases and interesting applications.
The Yubikey Handbook is an attempt of exploring those use cases and is intended to be a living document. It is focused on the Yubikey 4/Yubikey 4 Nano. With some adaptations, parts of this document will also apply to the Yubikey NEO.
Source: Yubico
This book is available online for free and is downloadable in PDF, ePUB or Mobi/Kindle formats.
About the author
Rui Marinho (github, twitter, npm) is a software engineer by day, a security engineer by night and a network engineer on weekends. This blend of interests has allowed him to plan and build large-scale infrastructure projects, having specialized in mission-critical and highly available systems with security as one of its top priorities. Read more.