Authentication Community OSS authentication options Introduction to Identity Enabling authentication using Facebook, Google and other external providers Account Confirmation and Password Recovery Two-factor authentication with SMS Using Cookie Middleware without ASP.NET Core Identity Azure Active Directory Integrating Azure AD Into an ASP.NET Core Web App Calling an ASP.NET Core Web API From a WPF Application Using Azure AD Calling a Web API in an ASP.NET Core Web Application Using Azure AD Securing ASP.NET Core apps with IdentityServer4