title: Custom Policy-Based Authorization in ASP.NET Framework
body: <p>I'm using ASP.NET API with .NET Framework 4.7.1 </p>
  
  <p>And I'm looking for custom policy-based authorization. <a href="https://aspnetcore.readthedocs.io/en/stable/security/authorization/policies.html" rel="nofollow noreferrer">This</a> document described custom policy-based authorization for .NET core, but how could I implement it for .NET framework?</p>