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knowledge/technology/devices/YubiKey.md
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obj website
device https://www.yubico.com

YubiKey

YubiKey is a versatile hardware security key developed by Yubico that provides strong two-factor authentication (2FA) and supports various authentication protocols. This small, USB-based device offers a secure and convenient way to enhance the security of your online accounts and digital assets.

Screenshot

Features

1. Two-Factor Authentication (2FA):

  • YubiKey supports one-time password (OTP) generation, adding an extra layer of security to your accounts by requiring something you know (password) and something you have (YubiKey).

2. Universal Second Factor (U2F):

  • YubiKey implements the U2F standard, allowing it to be used as a hardware token for two-factor authentication with websites and services that support U2F.

3. OpenPGP and Smart Card Support:

  • YubiKey can be configured to act as an OpenPGP smart card, enabling secure email communication and digital signatures.

4. FIDO2 and WebAuthn:

  • YubiKey supports FIDO2 and WebAuthn standards, providing passwordless authentication for a growing number of online services and platforms.

5. NFC (Near Field Communication):

  • Some YubiKey models include NFC support, allowing for easy authentication with mobile devices by tapping the YubiKey.

Getting Started

1. Registering YubiKey:

  • To use YubiKey with supported services, you typically need to register it. Follow the service-specific instructions to associate your YubiKey with your account.

2. Configuration and Personalization:

  • Use the YubiKey Personalization Tool to configure and personalize your YubiKey. This includes setting up static or dynamic passwords and enabling or disabling specific features.

3. Using YubiKey:

  • When prompted for authentication, insert your YubiKey into a USB port or tap it on an NFC-enabled device. The YubiKey generates or validates the required authentication codes.

Security Considerations

  1. Physical Security:
    • Keep your YubiKey physically secure. Treat it like a key to your accounts and store it in a safe place.
  2. Backup Options:
    • Consider having backup authentication methods in case you lose your YubiKey.
  3. Firmware Updates:
    • Regularly check for firmware updates and apply them to ensure your YubiKey has the latest security enhancements.
  4. Service Compatibility:
    • Ensure that the online services you use support YubiKey and the desired authentication standard.