FIDO U2F Security KeysWeb Authentication Dongles

FIDO U2F Security Keys dongles for secure website login web authentication. USB and contactless

FIDO U2F security keys are small USB devices (dongles) that enable secure login to websites and applications. They are the solution to the problem of weak passwords, hacking, phising scams and keyloggers.

FIDO U2F, meaning Universal Second Factor, allows online services to strengthen login security by adding a high-security second factor to user logins. Traditional logins requiring a password or PIN can be reinforced by requiring the presence of the FIDO U2F authentication dongle. The user simply needs to touch the button on the USB token or tap an NFC-capable token to their smartphone or tablet.

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How Do They Work?

FIDO U2F security keys utilise public-key cryptography to assert the identity of the user. At the point of registration with the website, or on first use of the application, the user presents the FIDO U2F device which then generates a new keypair - the public key is shared with the application, the private key is kept hidden by the device. At subsequent logins the website or application issues a challenge which the device signs internally using the private key. The device will only perform the signature after the user has 'unlocked' the device (eg, by touching the button on the device). The application then verifies the returned signature using the previously shared public key.

The FIDO U2F protocol enables these devices to be used as a second factor at login. Developed by the FIDO Alliance, an industry consortium whose members include Google, Microsoft, Samsung, PayPal, MasterCard, Visa and RSA Security, FIDO U2F is gaining rapid support across the industry.

How Do I Use Them?

On their own, FIDO U2F tokens can be used with services that already support them such as Google Accounts, Dropbox and GitHub.

Add FIDO U2F support to your own website or web application with SmartSign, our strong-authentication solution. SmartSign comprises an authentication server, management system, SDK and documentation.

With SmartSign you can support FIDO U2F tokens in any browser on Windows, macOS and Linux.

Use FIDO U2F Security Keys in Internet Explorer, IE, Edge, Firefox, Opera, Safari and Chrome
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Branding and Customisation

If you are interested in customising FIDO keys with your logo or other artwork, please get in touch to discuss your requirements. We offer both full CMYK printing and laser engraving. Longer lead times and a minimum order quantity of 500 units apply.

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Key Specification

FIDO U2F Security Keys

MultiPass FIDO U2F Security Keys

FIDO U2F Security Key MultiPass FIDO U2F Security Key
Connectivity USB
Bluetooth Low Energy (BLE)
Algorithms ECDSA, SHA256 ECDSA, SHA256
Max Number of Site Keys Unlimited Unlimited
Programming Cycles 100,000 100,000
Data Storage Life 10 years+ 10 years+
Operating Systems Windows, Linux, Mac OS, Chrome OS, Android Windows, Linux, Mac OS, Chrome OS, Android, iOS
Size 43.9 x 20.8 x 3.1 mm 47.3 x 29.3 x 8.3 mm
Working Voltage 5.0V 5.0V
Working Current 22mA 22mA
Power 0.11W 0.11W
Rechargable N/A Yes
Battery Capacity N/A 35mAh
Working Temperature -10 °C ~ 50 °C -10 °C ~ 50 °C
Storage Temperature -20 °C ~ 70 °C -20 °C ~ 70 °C
Certification FIDO U2F FIDO U2F
Customisation Options Your logo on back of device Your logo on back of device
FIDO U2F Security Key MultiPass FIDO U2F Security Key

Download FIDO Token Datasheet