Applications:Yubikey Time Delta Server PHP

From Yubico

YubiKey Timedelta Server PHP by yubico

Server reference implementation in PHP for utilising YubiKey time stamps for more secure logins. It supports multiple OTPs at once for more secure one-time logins and the handling of OTPs during session logins.

» [demo available at http://timedelta.yubico.com]
» [project hosted at http://code.google.com/p/yubikey-timedelta-server-php/]