net481 
namespace Microsoft.AspNet.Authorization
{
    public static class AuthorizationServiceExtensions
    {
        public static Task<bool> AuthorizeAsync(this IAuthorizationService service, ClaimsPrincipal user, object resource, IAuthorizationRequirement requirement);
    }
}
.NET Framework
4.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net481
Assembly

Microsoft.AspNet.Authorization , Version=1.0.0.0, PublicKeyToken=adb9793829ddae60

Referencing

Your project needs a package reference to Microsoft.AspNet.Authorization.

Package Microsoft.AspNet.Authorization (1.0.0-rc1-final) net451
Preview This API is contained in a prerelease package.
Platform Restrictions

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  • Built-in API
  • Package-provided API