Wikitopia
TOTP
conceptAuthentication Method
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Overview
LicenseOpen Standard
Use caseTwo-factor authentication
Technical
Protocols
OATH
Also see
Alternative to
SMS-based authentication
Based onHOTP (HMAC-based One-Time Password)
Competes with
HOTP
Knowledge graph stats
Claims19
Avg confidence95%
Avg freshness99%
Last updatedUpdated 4 days ago
WikidataQ7672828
Trust distribution
100% unverified
Governance
Not assessed
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TOTP

concept

Time-based One-Time Password algorithm generating temporary passwords for two-factor authentication.

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requires

ValueTrustConfidenceFreshnessSources
Shared secret key○UnverifiedHighFresh1
Synchronized time○UnverifiedHighFresh1
HMAC-SHA1○UnverifiedHighFresh1

open standard

ValueTrustConfidenceFreshnessSources
true○UnverifiedHighFresh1

defined in rfc

ValueTrustConfidenceFreshnessSources
RFC 6238○UnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
Two-factor authentication○UnverifiedHighFresh1

based on

ValueTrustConfidenceFreshnessSources
HOTP (HMAC-based One-Time Password)○UnverifiedHighFresh1

uses algorithm

ValueTrustConfidenceFreshnessSources
HMAC-SHA1○UnverifiedHighFresh1

standard time window

ValueTrustConfidenceFreshnessSources
30 seconds○UnverifiedHighFresh1

standardized by

ValueTrustConfidenceFreshnessSources
Internet Engineering Task Force (IETF)○UnverifiedHighFresh1

published year

ValueTrustConfidenceFreshnessSources
2011○UnverifiedHighFresh1

integrates with

ValueTrustConfidenceFreshnessSources
Google Authenticator○UnverifiedHighFresh1
Microsoft Authenticator○UnverifiedHighFresh1
Authy○UnverifiedHighFresh1

license type

ValueTrustConfidenceFreshnessSources
Open Standard○UnverifiedHighFresh1

time window default

ValueTrustConfidenceFreshnessSources
30 seconds○UnverifiedHighFresh1

alternative to

ValueTrustConfidenceFreshnessSources
SMS-based authentication○UnverifiedHighFresh1

supports protocol

ValueTrustConfidenceFreshnessSources
OATH○UnverifiedHighFresh1

competes with

ValueTrustConfidenceFreshnessSources
HOTP○UnverifiedModerateFresh1

Alternatives & Similar Tools

SMS-based authentication
alternative to
Compare →
HOTP
competes with
Compare →

Commonly Used With

Google AuthenticatorMicrosoft AuthenticatorAuthy

Related entities

Claim count: 19Last updated: 4/6/2026Edit history