What is a Time-based One-time Password (TOTP)?

TOTP (Time-based One-time Password) is a common form of two-factor authentication. Unique passwords are generated using the current time as an input.

Two-factor authentication with TOTP, by Nicola Moretto

Medium dive on the Time-based One-time Passwords (TOTP) spec

One Time Password (OTP): Definitions, Best Practices, & Examples

Configuring the Time-Based One-Time Password (TOTP) Tool for Two-Factor Authentication Using Google Authenticator - NetIQ® CloudAccess and MobileAccess Installation and Configuration Guide

What is a Time-based One-time Password (TOTP)?

How does the Time-Based One-Time Password (TOTP) algorithm work?

Time-based One-Time Password (TOTP): What is it?

TOTP, Time-Based One-Time Password

Empowering Your Security: Unlocking the Benefits of Time-Based One-Time Passwords (TOTP)