.NET Framework Security

Using Existing Security Mechanisms

Before we dig down into the mechanics of requesting security services, let's recap a little of what we know about security permissions.

Permissions describe a level of access to a resource. In general, for each resource type to be protected, there is a corresponding permission type. The .NET Framework provides many pre-baked permissions for such standard resources as files, registry keys, and environment variables, as well as abstract resources, such as the ability to manipulate the security system itself or execute unmanaged code. Permission types can also be implemented by your own code or third parties to cover new resources or situations where security is appropriate.

While some permission types are binary ...