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[Authentication & Authorization](/categories/authentication) 4. / 5. derhansen/sf\_yubikey ActiveTypo3-cms-extension[Authentication & Authorization](/categories/authentication) derhansen/sf\_yubikey ===================== YubiKey two-factor OTP authentication - An authentication service for TYPO3 which extends the backend/frontend login by YubiKey OTP two-factor authentication. 7.0.2(2mo ago)1333.6k↑176.6%8GPL-2.0-or-laterPHPCI passing Since Feb 14Pushed 2mo ago3 watchersCompare [ Source](https://github.com/derhansen/sf_yubikey)[ Packagist](https://packagist.org/packages/derhansen/sf_yubikey)[ Docs](https://github.com/derhansen/sf_yubikey)[ Fund](https://www.paypal.me/derhansen)[ RSS](/packages/derhansen-sf-yubikey/feed)WikiDiscussions main Synced today READMEChangelog (10)Dependencies (2)Versions (34)Used By (0) YubiKey two-factor authentication for TYPO3 =========================================== [](#yubikey-two-factor-authentication-for-typo3) [![Code Quality Checks](https://github.com/derhansen/sf_yubikey/actions/workflows/CodeQuality.yml/badge.svg)](https://github.com/derhansen/sf_yubikey/actions/workflows/CodeQuality.yml)[![Unit- and functional tests](https://github.com/derhansen/sf_yubikey/actions/workflows/ci.yml/badge.svg)](https://github.com/derhansen/sf_yubikey/actions/workflows/ci.yml)[![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://camo.githubusercontent.com/39c688bf243eeb6d3bfc529dcf3cb27443613deb696c8fa9f49bccf1e63e3bef/68747470733a2f2f7777772e7265706f7374617475732e6f72672f6261646765732f6c61746573742f6163746976652e737667)](https://www.repostatus.org/#active) What is it? ----------- [](#what-is-it) This extension is an authentication service for TYPO3 which extends the frontend and backend login process by strong two-factor authentication. What does it do? ---------------- [](#what-does-it-do) The two-factor authentication is provided by a TYPO3 users username and password combined with a OTP (one time password) which is generated by a YubiKey (a physical USB-key) A YubiKey enabled user has to enter his username, password and a OTP to login to TYPO3s backend and/or frontend. More information about the YubiKey, Yubico and the YubiCloud OTP validation service can be found at Documentation ------------- [](#documentation) You can find a detailed documentation in the Documentation folder of the TYPO3 extension. Versions -------- [](#versions) VersionTYPO3PHPSupport/Development7.x14.38.2 - 8.5Features, Bugfixes, Security Updates6.x13.48.2 - 8.5Features, Bugfixes, Security Updates5.x12.48.1 - 8.4Bugfixes, Security Updates4.x11.57.4 - 8.3Security Updates3.x9.5 - 10.47.2 - 7.4Support dropped2.x7.6 - 9.55.5 - 7.4Support dropped1.x6.2 - 7.65.5 - 7.2Support dropped0.x4.5 - 6.25.2 - 5.6Support droppedReporting a Vulnerability ------------------------- [](#reporting-a-vulnerability) Please report vulnerabilities to . Support and updates ------------------- [](#support-and-updates) The extension is hosted on GitHub. Please report feedback, bugs and changerequest directly at [https://github.com/derhansen/sf\_yubikey](https://github.com/derhansen/sf_yubikey) ### Health Score 57 — FairBetter than 98% of packages Maintenance86 Actively maintained with recent releases Popularity37 Limited adoption so far Community17 Small or concentrated contributor base Maturity74 Established project with proven stability Bus Factor1 Top contributor holds 95.5% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~124 days Recently: every ~33 days Total 31 Last Release 70d ago Major Versions 2.3.0 → 3.0.02019-12-25 3.x-dev → 4.0.02021-10-01 4.x-dev → 5.0.02023-04-02 5.x-dev → 6.0.02024-10-13 6.x-dev → 7.0.02025-12-13 PHP version history (2 changes)3.0.0PHP ^7.2 4.0.0PHP ^7.4 || ^8.0 ### Community Maintainers ![](https://www.gravatar.com/avatar/d52103f3af5442e3cf7f3fb14456dc51f311af529394f0325bcd0a4e8d407947?d=identicon)[derhansen](/maintainers/derhansen) --- Top Contributors [![derhansen](https://avatars.githubusercontent.com/u/2629896?v=4)](https://github.com/derhansen "derhansen (189 commits)")[![abeutel](https://avatars.githubusercontent.com/u/434679?v=4)](https://github.com/abeutel "abeutel (5 commits)")[![Teisi](https://avatars.githubusercontent.com/u/10898521?v=4)](https://github.com/Teisi "Teisi (2 commits)")[![klali](https://avatars.githubusercontent.com/u/264413?v=4)](https://github.com/klali "klali (1 commits)")[![ohader](https://avatars.githubusercontent.com/u/402145?v=4)](https://github.com/ohader "ohader (1 commits)") --- Tags typo3typo3-extensionyubikeyTwo Factor AuthenticationTYPO3 CMSyubikey ### Embed Badge ![Health badge](/badges/derhansen-sf-yubikey/health.svg) ``` [![Health](https://phpackages.com/badges/derhansen-sf-yubikey/health.svg)](https://phpackages.com/packages/derhansen-sf-yubikey) ``` ### Alternatives [friendsoftypo3/content-blocks TYPO3 CMS Content Blocks - Content Types API | Define reusable components via YAML 103519.9k53](/packages/friendsoftypo3-content-blocks)[typo3/cms-felogin TYPO3 CMS Frontend Login - A template-based plugin to log in website users in the TYPO3 frontend. 117.2M132](/packages/typo3-cms-felogin)[mfc/oauth2 Generic OAuth2 authentication and authorization for TYPO3 CMS 11310.1k2](/packages/mfc-oauth2)[derhansen/sf_event_mgt Event management and registration - Configurable event management and registration extension based on ExtBase and Fluid 66338.4k10](/packages/derhansen-sf-event-mgt)[brotkrueml/schema Embedding schema.org vocabulary - API and view helpers for schema.org markup 34653.7k16](/packages/brotkrueml-schema)[causal/ig_ldap_sso_auth This extension provides LDAP support for TYPO3 by delegating the authentication of frontend and/or backend users to the centrally-managed directory of your organization. It fully supports OpenLDAP and Active Directory and is capable of connecting securely to the authentication server using either TLS or SSL (ldaps://). In case of use in an intranet environment, this extension is a perfect match since it natively brings Single Sign-On (SSO) capability to TYPO3 without any complex configuration. 33394.1k1](/packages/causal-ig-ldap-sso-auth) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)