The YubiKey 5C NFC includes

• Support for strong single factor, two-factor hardware and multi-factor authentication


• Strong authentication with support for multiple protocols (Yubico OTP, OATH HOTP, OATH TOTP, U2F, PIV, and Open PGP), and FIDO2 the new standard enabling the replacement of weak password-based authentication.


• Out of the box integration with hundreds of services, with no shared secrets.


• A seamless user experience that is easy to use, fast and reliable and is proven at scale to significantly reduce IT costs.

How it Works

1. Choose a service to sign-in with and enter your username and password.
2. When prompted, simply insert the YubiKey into a USB-C port or touch it to NFC supported devices.
3. Authenticate effortlessly with a touch or tap the YubiKey 5C NFC to your NFC-enabled device.

Benefits

• Strong single factor, two-factor hardware and multi-factor authentication


• Easy and fast authentication with a single touch or tap to NFC enabled device


• Reduces IT operational costs


• Multiprotocol support on a single key


• Crush-resistant and Water-resistant


• Made in the USA & Sweden


• Four times faster than typing a One Time Passcode


• Always on and accessible because no batteries or network connectivity is required

Features

• Supported protocols: FIDO2, FIDO U2F, smart card (PIV), Yubico OTP, OpenPGP, OATH-TOTP, OATH-HOTP, and Challenge-Response


• Secure element hardware to protect cryptographic keys and perform cryptographic operations


• Crypto Algorithms: RSA 40965, RSA 30725, RSA 2048, RSA 1024, ECC p2566, ECC p3846


• Interface: USB-A and NFC


• Works on Microsoft Windows, macOS, Linux and on major browsers such as Chrome, Firefox, Safari, Edge, and Opera


• Works on mobile platforms such as iOS and Android


• Works with Google, Facebook, Dropbox, Twitter, LastPass, Dashlane, and hundreds of other services


• PIV smart card compatible, smart card minidriver available on Windows

Specs

• Functions: Secure Static Passwords, YubiKey OTP, OATH - HOTP (Event), OATH - TOTP (Time), Smart Card (PIV), OpenPGP, FIDO U2F (Universal Second Factor), FIDO2, secure element


• Cerifications: FIDO U2F, FIDO2


• Communications Support: USB-A, NFC


• Device Type: HID Keyboard, CCID Smart Card, FIDO HID device


• Cryptographic Specifications: RSA 2048, RSA 4096 (PGP), ECC p256, ECC p384

More about Universal 2nd Factor (U2F)

FIDO2 is an open authentication standard that consists of the W3C Web Authentication specification (WebAuthn API), and the Client to Authentication Protocol (CTAP). CTAP is an application layer protocol used for communication between a client (browser) or a platform (operating system) with an external authenticator (Security Key by Yubico).
FIDO2 offers the same high level of security as FIDO U2F, as it is also based on public key cryptography and is intended to solve multiple user scenarios including strong first factor (passwordless), strong second factor, and multi-factor authentication. With these new capabilities, the hardware security key can entirely replace weak static username/password credentials with strong hardware-backed public/private-key credentials. These credentials cannot be reused, replayed, or shared across services, and are not subject to phishing and MiTM attacks or server breaches.