ASP.NET MVC Authorization: Permissions in Place of Roles?

I agree with @jlew about caching the user's data and when the cache expires - just reload it. There's no use trying to force this data to stay persistent. Additionally, if you want to move away from the ASP.net role providers, you could roll your own security as I've described in this reply .

This has the advantage of allowing very custom security solutions for roles/individual permissions.

We solve the problem by caching the principal on the server side, so that the "permission roles" do not need to be in the cookie and we do not have to re-load on every request. You can actually get around the cookie size limitation by chunking your cookie data into multiple cookies (Windows Identity Framework does this.) But, you may have bandwidth or other concerns with big cookies.

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