YubiKey Authentication

Simple Definition for Beginners:

YubiKey authentication is a security method that uses a physical hardware device called YubiKey to provide secure access to digital accounts, systems, and applications. It offers an extra layer of protection beyond passwords.

Common Use Example:

A company implements YubiKey authentication for its employees’ accounts, requiring them to insert their YubiKey device and enter a PIN to access sensitive systems and data.

Technical Definition for Professionals:

YubiKey authentication is a form of two-factor authentication (2FA) or multi-factor authentication (MFA) that utilizes a hardware security token called YubiKey. The YubiKey device generates one-time passwords (OTPs) or cryptographically signed authentication tokens, providing a secure and convenient way to verify users’ identities. Key aspects of YubiKey authentication include:

• Hardware Token: YubiKey is a small USB or NFC device that generates OTPs or cryptographic tokens.
• Two-Factor Authentication: YubiKey adds an additional layer of security beyond passwords, requiring physical possession of the device.
• OTP Generation: YubiKey can generate time-based OTPs or OTPs based on a button press, enhancing security against phishing and credential theft.
• Cryptographic Signatures: YubiKey can generate cryptographic signatures for secure authentication with compatible systems and services.
• Integration: YubiKey can integrate with various authentication protocols and systems, including OAuth, OpenID Connect, and FIDO standards.