General
Degree of protection	IP68
Connection	USB-A
Supported protocols	FIDO2, U2F, Smartcard, OTP, OpenPGP
Authentication method	Two-factor authentication, multi-factor authentication, passwordless authentication
Function	Touch-to-Sign

The YubiKey 5 Nano from Yubico is a compact USB security key developed for secure authentication in digital environments. It serves as a hardware authenticator and supports various authentication methods to protect online accounts from unauthorized access. The key is particularly suitable for users requiring strong two-factor authentication, multi-factor authentication, or passwordless authentication. It enables fast and secure login and signing functions, with authentication performed by simply touching the device – known as the Touch-to-Sign function. The device operates without additional batteries or moving parts, enhancing its durability and reliability.

Applications

The YubiKey 5 Nano is used in enterprises, government agencies, and private environments where high security requirements exist. It is especially suitable for protecting access to email systems, cloud services, financial platforms, or medical applications, where authentication is of critical importance. Support for multiple protocols allows its use in both legacy and modern system environments, enabling flexible integration into existing IT infrastructures. Its compact design makes it ideal for mobile use, such as with smartphones, tablets, or laptops.

Functions and Features in Detail

The security key supports multiple authentication protocols, including FIDO2, U2F, Smartcard, OTP, and OpenPGP. This variety enables use in various scenarios, from simple password-enhanced authentication to complex, multi-stage security procedures. Passwordless authentication replaces traditional passwords and offers a fast, yet secure, login option. Multi-factor authentication combines the hardware authenticator with a PIN, providing additional security for sensitive transactions such as financial operations or prescription submissions. The Touch-to-Sign function enables seamless signature creation, requiring only a touch of the device to confirm an action.

Technology Explained Simply

The YubiKey 5 Nano operates via a USB-A connection and is therefore compatible with devices supporting this standard. The IP68 protection rating ensures the device is dust- and waterproof, making it suitable for outdoor use or in humid environments. The design without moving parts and without batteries increases robustness and reduces wear. The device operates using the FIDO2 protocol, which enables secure, standardized authentication, and U2F, developed for two-factor authentication in web applications. Support for OpenPGP allows use for cryptographic signing and encryption tasks.

Compatibility and Accessories

The YubiKey 5 Nano is compatible with a wide range of online applications listed in the YubiKey catalog. It can be connected to devices equipped with a USB-A port, making it suitable for desktop PCs, laptops, and other USB-enabled end devices. No additional software installation is required, as authentication is handled directly through the supported protocols.

Installation and Mounting

Installation is performed by simply inserting the YubiKey 5 Nano into an available USB-A port on the device. Authentication begins as soon as the user touches the device. No additional steps such as installing drivers or software are required, as compatibility is ensured through the supported protocols. As a result, usage is straightforward and does not require specialized technical knowledge.

Operational Advantages

The YubiKey 5 Nano provides high security through the combination of a hardware authenticator and PIN, significantly reducing the risk of unauthorized access. Its compact design and IP68 protection rating make it robust and suitable for daily use. Support for multiple protocols increases flexibility and enables use in various system environments. The fast, touch-based authentication ensures a user-friendly experience without compromising security. The device operates without batteries, increasing maintenance-free operation. Batteries are not included in the delivery scope.