Shared cookie authentication between ASP.NET Core RC2 and .NET 4.5.1 apps
<p>We have two .NET-apps running shared cookie authentication. One is an ASP.NET Core RC1 app, and the other is a classic .NET 4.5.1 app.</p>

<p>This is currently set up using the outdated <code>Microsoft.Owin.Security.Cookies.Interop</code> in the <code>Configuration</code> method of <code>Startup.cs</code>:</p>

<p>This works fine, but is no supported method for RC2.</p>

<p>How can we get going with shared cookie authentication for RC2?</p>