Screen shots

Junk Email Filter

Security Notice
Phishing campain
Version 1.4.15
Security Upgrade
Plugins - Yubikey Hardware Authentication
Category: Logging in

This plugin enables One-Time-Password authentication with a Yubikey hardware token. This provides multi-factor authentication in form of something you know and something you have.

Version 1.0
by Paul Lesniewski on Mar 28, 2014
Please support this plugin's development: Donate to this author
[ yubikey-1.0-1.4.0.tar.gz tarball (7577 d/l) Help ]
Requires: SquirrelMail 1.4.0 or above, Compatibility plugin 2.0.5 or above, PHP 5 with curl support, Yubikey hardware token

  • Fix security issue that allowed any valid Yubikey to log in instead of only that stored in user preferences -- UPGRADE STRONGLY RECOMMENDED
  • Relax PHP requirements (was 5.2.0) (date function fixes)
  • Turn off required checkbox when all Yubikeys are removed
  • Clarify configuration settings
  • Allow configuration file to be stored in main SquirrelMail configuration directory
  • Add debug setting

Older versions

Version 0.8.1
by Richard Ferguson on May 5, 2009
[ yubikey-0.8.1-1.4.0.tar.gz tarball (8125 d/l) Help ]
Requires: SquirrelMail 1.4.0+ (1.5.x series not supported)

Description: Initial Release

If you have problems with the download or decompressing...
Internet Explorer
Right-click on the file, then select "Save Target As"
Firefox, Mozilla, Netscape
Right-click on the file, then select "Save Link As"
Right-click on the file, then select "Save Link Document As"
Lynx and Links
Press "d" on the link to download the file directly.
  • Untarring problems: Your browser might have un-gzipped it for you automatically. Try just "tar xvf" instead of "tar xvfz". Also, the plugins archive isn't gzipped (it is a tarball of .tar.gz files)
  • Macintosh users: Just hold down your mouse button to get the menu instead of right-clicking.
  • If all else fails, seek our help
© 1999-2016 by The SquirrelMail Project Team