Can Web3 End Two-Factor Authentication?

Author: Jimmy Dendrinos
Date: July 19, 2022

While this week’s blog post is aimed at developers, if you’ve ever logged into a website, you may find it interesting. You don’t have to be a web expert to be aware of the push for two-factor authentication. These text messages or confirmation emails add an extra level of security to our most valuable online accounts.


Unfortunately, the standard implementation for two-factor authentication adds a significant amount of friction to the user experience. We’ve all had to search for our phone or sit there refreshing the email inbox waiting on that security code.


With the rise of web3, can developers implement a more efficient form of two-factor authentication? In an attempt to blend web2 and web3 authentication systems, I may have stumbled onto a clever solution. Why can’t I use a browser-connected wallet as the second form of authentication?


Check out the video below to see an example of the login process.

From a technical standpoint, I log in a temporary user using the traditional email and password. I check that temporary users stored wallet ID captured when they register an account. I fire a Metamask connection request and check if the connected address is the same as the stored wallet ID. If they are a match, the user is allowed to login. Any attempt to leave the page will log the temporary user out.

While I agree that this method is not quite as secure as a stand-alone authentication application, the user experience is streamlined. A login request with authentication can take less than 10 seconds. Everything happens in the same viewport and there is no need to switch applications or track down a secondary device.

Security experts, I would welcome any criticism of this method. Please let me know if I’m missing something. NFT Concerts fans, enjoy the sneak peek at our beta. If you’re like me and can’t wait to start collecting concert recordings, be sure to sign up to our mailing list in the footer below.


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