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[Directory](/) 2. / 3. derhansen/sf\_yubikey ActiveTypo3-cms-extension derhansen/sf\_yubikey ===================== Two-factor authentication with a YubiKey OTP 7.0.0(5mo ago)1232.2k↑37.5%8[4 issues](https://github.com/derhansen/sf_yubikey/issues)GPL-2.0-or-laterPHPCI passing Since Feb 14Pushed 5mo 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 1mo ago READMEChangelog (10)Dependencies (1)Versions (32)Used By (0) YubiKey two-factor authentication for TYPO3 =========================================== [](#yubikey-two-factor-authentication-for-typo3) [![Build Status](https://github.com/derhansen/sf_yubikey/workflows/CI/badge.svg?branch=master)](https://github.com/derhansen/sf_yubikey/actions)[![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.x8.2 - 8.5Features, Bugfixes, Security Updates6.x13.48.2 - 8.5Features, Bugfixes, Security Updates5.x12.48.1 - 8.4Features, Bugfixes, Security Updates4.x11.57.4 - 8.3Bugfixes, Security Updates3.x9.5 - 10.47.2 - 7.4Security Updates2.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 52 — FairBetter than 96% of packages Maintenance65 Regular maintenance activity Popularity37 Limited adoption so far Community17 Small or concentrated contributor base Maturity74 Established project with proven stability Bus Factor1 Top contributor holds 95.2% 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 ~128 days Recently: every ~169 days Total 29 Last Release 156d 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 (180 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 [fluidtypo3/vhs This is a collection of ViewHelpers for performing rendering tasks that are not natively provided by TYPO3's Fluid templating engine. 1954.1M49](/packages/fluidtypo3-vhs)[derhansen/sf_event_mgt Configurable event management and registration extension based on ExtBase and Fluid 64313.9k6](/packages/derhansen-sf-event-mgt)[brotkrueml/schema Embedding schema.org vocabulary - API and view helpers for schema.org markup 33584.6k13](/packages/brotkrueml-schema)[in2code/in2publish_core Content publishing extension to connect stage and production server 40135.8k](/packages/in2code-in2publish-core)[causal/image_autoresize Simplify the way your editors may upload their images: no complex local procedure needed, let TYPO3 automatically resize down their huge images/pictures on-the-fly during upload (or using a command for batch processing) and according to your own business rules (directory/groups). This will highly reduce the footprint on your server and speed-up response time if lots of images are rendered (e.g., in a gallery). Features an EXIF/IPTC extractor to ensure metadata may be used by the FAL indexer even if not preserved upon resizing. 19455.6k](/packages/causal-image-autoresize)[causal/extractor This extension detects and extracts metadata (EXIF / IPTC / XMP / ...) from potentially thousand different file types (such as MS Word/Powerpoint/Excel documents, PDF and images) and bring them automatically and natively to TYPO3 when uploading assets. Works with built-in PHP functions but takes advantage of Apache Tika and other external tools for enhanced metadata extraction. 16244.5k](/packages/causal-extractor) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)