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.

Basics of One-time Passwords Baeldung on Computer Science

Comparison of HOTP and TOTP HOTP (HMAC Based One Time Password) TOTP

One-Time Password (OTP) Authentication Methods – HOTP + TOTP

What Are Authenticator Apps and How Do They Work? – Keeper

All about Time-Based One-Time Passwords (TOTP)

OTP c200 OATH Time-Based (TOTP) Token – FEITIAN

HOTP vs TOTP: What's the Difference? - Rublon

Time-based One-time Passwords (TOTP), by Gangani Chamika, Identity Beyond Borders

How Time-based One-time Password (TOTP) algorithm works

TOTP display controls - Azure AD B2C