OATH Toolkit libpam_oath PAM module

 The OATH Toolkit makes it easy to build one-time password
 authentication systems. It contains a shared library, a command line
 tool and a PAM module. Supported technologies include the event-based
 HOTP algorithm (RFC4226) and the time-based TOTP algorithm (RFC6238).
 OATH stands for Open AuTHentication, which is the organization that
 specify the algorithms.
 .
 This package contain a PAM module to authenticate users against
 a local file-based OATH database.