Time-based One-time Password Algorithm (TOTP) auth plugin.
TOTP is an algorithm that computes a one-time password from a shared secret key and the current time.
TOTP is an implementation of a hash-based message authentication code (HMAC). It combines a secret key with the current timestamp using a cryptographic hash function to generate a one-time password. The timestamp typically increases in 30-second intervals, so passwords generated close together in time from the same secret key will be equal.
Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.