What are Hardware Tokens?
Hardware tokens are physical devices used to authenticate a user. They typically come in the form of a key fob or a card you carry. When you need to log in to a website or other service, you insert the hardware token into a reader connected to your computer. The hardware token generates a one-time password (OTP) that you then use to complete the login process.
Hardware tokens are one of the most secure methods of two-factor authentication since they are not susceptible to many attacks that can compromise other methods, such as SMS-based 2FA. However, they can be lost or stolen, so it is important to have a backup method of two-factor authentication in place in case your hardware token is lost or stolen.
How Do Hardware Tokens Work?
Hardware tokens work by generating an OTP that is used to authenticate a user. The OTP is generated using algorithms, which are typically based on the time or a challenge-response protocol.
When you insert the hardware token into the reader, it contacts the server that is providing the service you are trying to access. The server then sends a challenge to the hardware token. The hardware token uses the challenge, along with the algorithms, to generate the OTP. The OTP is then sent back to the server, which verifies it and allows you to access the service.
What Are the Benefits of Hardware Tokens?
Here are the key benefits of hardware tokens:
Security: Hardware tokens are one of the most secure methods of two-factor authentication. They are not susceptible to many attacks that can compromise other methods, such as SMS-based 2FA.
Convenience: Hardware tokens are easy to use and don’t require you to remember any extra passwords.
Compatibility: Hardware tokens are compatible with many devices and services.
What Are the Drawbacks of Hardware Tokens?
Here are the key drawbacks of hardware tokens:
Loss or theft: If you lose your hardware token, you will not be able to access the service it is used for. It is vital to have a backup method of two-factor authentication in place in case your hardware token is lost or stolen.
Cost: Hardware tokens can be expensive, especially if you need to use them for multiple services.
Duo Hardware Tokens
Duo’s hardware tokens are easy to use and work with a wide range of devices and services. If you lose your hardware token, you can easily deactivate it and activate a new one.
Duo Compatible Hardware Tokens
Duo’s hardware tokens work with a wide range of devices and services. If you lose your hardware token, you can easily deactivate it and activate a new one.
YubiKey 5 Series
The YubiKey 5 Series is a line of hardware tokens that supports multiple protocols, including FIDO U2F, FIDO2, Yubico OTP, OpenPGP, and PIV. The YubiKey 5 Series is compatible with many devices and services.