FIDO2 authentication is one of the technologies that you should consider implementing in your business if you want to secure your data and business systems. While so many people still use passwords, their problem is that they can easily be breached. One of the most prevalent password theft techniques, phishing, still remains unsolved, but the good news is that FIDO login addresses that.
The Fido Alliance has set their goal to solve the password problem once and for all by simplifying and standardizing strong online authentication. Their most recent standard, which is known as FIDO2, has gained support by the majority of tech industry leaders and the demand for integrating FIDO2 authentication in online services has been on the rise ever since.
To strengthen online authentication, FIDO2 credentials rely on public key cryptography. These credentials are either stored in external hardware tokens like USB/NFC keys, which are referred to as external (or roaming) authenticators, or they can be stored internally in a user’s device, in so called platform authenticators. The latter is more advantageous compared to an external device that needs to be carried with the user all the time.
The private key that is required for the authentication is securely stored, either on the hardware token or in a secure storage on the user device, like a TPM accessible only following a biometric test (such as a fingerprint scan).
So, how does the login process with FIDO2 authentication work? Assuming an online service with an existing username/password login mechanism, the operator of the online service integrates the FIDO2 authentication method as a second factor. After the usual login, the user can go ahead and register their cryptographic credentials. This can be done by inserting an external hardware token or by creating and storing the credentials on his device. This process is not complex nor time consuming for the user to accomplish.
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