oath-toolkit 2.6.2 One-time password (OTP) components

The OATH (Open AuTHentication) Toolkit provides various components for building one-time password (OTP) authentication systems:

  • oathtool, a command-line tool for generating & validating OTPs.

  • liboath, a C library for OATH handling.

  • pam_oath, a PAM module for pluggable login authentication.

Supported technologies include the event-based HOTP algorithm (RFC4226) and the time-based TOTP algorithm (RFC6238).