Pro ASP.NET Core Identity: Under the Hood with Authentication and Authorization in ASP.NET Core 5 and 6 Applications

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2021

A. FreemanPro ASP.NET Core Identity https://doi.org/10.1007/978-1-4842-6858-2_11

11. Two-Factor and External Authentication

Adam Freeman¹  

(1)

London, UK

 

Identity supports two-factor authentication, where the user provides additional information alongside their password. In Chapter 17, I demonstrate how to create an SMS two-factor workflow, but for this chapter, I am going to focus on support for an authenticator, which is a more secure approach but requires users to have access to an app. I also create workflows for signing in with third-party services from Facebook, Google, and Twitter, using the same configuration settings created in Chapter 5. Table