75 lines
3.3 KiB
Markdown
75 lines
3.3 KiB
Markdown
---
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title: "Security Key"
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description: "Authelia utilizes WebAuthn security keys as one of it's second factor authentication methods."
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lead: "Authelia utilizes WebAuthn security keys as one of it's second factor authentication methods."
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date: 2022-03-20T12:52:27+11:00
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draft: false
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images: []
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menu:
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overview:
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parent: "authentication"
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weight: 240
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toc: true
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aliases:
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- /docs/features/2fa/security-key
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---
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__Authelia__ supports hardware-based second factors leveraging [FIDO2] [WebAuthn] compatible security keys like
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[YubiKey]'s.
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Security keys are among the most secure second factor. This method is already supported by many major applications and
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platforms like Google, Facebook, GitHub, some banks, and much more.
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{{< figure src="yubikey.jpg" caption="A YubiKey Security Key" alt="A YubiKey Security Key" width=150 >}}
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Normally, the protocol requires your security key to be enrolled on each site before being able to authenticate with it.
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Since Authelia provides Single Sign-On, your users will need to enroll their device only once to get access to all your
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applications.
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{{< figure src="REGISTER-U2F.png" caption="The WebAuthn Registration View" alt="2FA WebAuthn Registration View" width=400 >}}
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After having successfully passed the first factor, select *Security Key* method and click on *Register device* link.
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This will send you an email to verify your identity.
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*NOTE: This e-mail has likely been sent to the mailbox at https://mail.example.com:8080/ if you're testing Authelia.*
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Confirm your identity by clicking on __Register__ and you'll be asked to touch the token of your security key to
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complete the enrollment.
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Upon successful enrollment, you can authenticate using your security key by simply touching the token again when
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requested:
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{{< figure src="2FA-U2F.png" caption="The WebAuthn Authentication View" alt="2FA WebAuthn Authentication View" width=400 >}}
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Easy, right?!
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## FAQ
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### Can I register multiple FIDO2 WebAuthn devices?
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At present this is not possible in the frontend. However the backend technically supports it. We plan to add this to the
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frontend in the near future. Subscribe to [this issue](https://github.com/authelia/authelia/issues/275) for updates.
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### Can I perform a passwordless login?
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Not at this time. We will tackle this at a later date.
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### Why don't I have access to the *Security Key* option?
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The [WebAuthn] protocol is a new protocol that is only supported by modern browsers. Please ensure your browser is up to
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date, supports [WebAuthn], and that the feature is not disabled if the option is not available to you in __Authelia__.
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### Can my FIDO U2F device operate with Authelia?
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At the present time there is no plan to support [FIDO U2F] within Authelia. We do implement a backwards compatible appid
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extension within __Authelia__ however this only works for devices registered before the upgrade to the [FIDO2]
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[WebAuthn] protocol.
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If there was sufficient interest in supporting registration of old U2F / FIDO devices in __Authelia__ we would consider
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adding support for this after or at the same time of the multi-device enhancements.
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[FIDO U2F]: https://www.yubico.com/authentication-standards/fido-u2f/
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[FIDO2]: https://www.yubico.com/authentication-standards/fido2/
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[WebAuthn]: https://www.yubico.com/authentication-standards/webauthn/
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[YubiKey]: https://www.yubico.com/products/yubikey-5-overview/
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