LinOTP is Linux-based software to manage authentication devices for two-factor authentication with one time passwords.
It is implemented as a web service based on the python framework Pylons.
LinOTP is mainly developed by the German company KeyIdentity GmbH.
It is an open source authentication server certified[2] by the OATH initiative for open authentication for its 2.4 version.
Thus, it is capable of supporting a wide range of different tokens.