Introduction to CAS
Code Access Security is a mechanism that is built into the .NET Framework to limit access to resources for managed code. A resource can be anything that might need to be secured, such as a file on disk, a CD-ROM drive, a TCP/IP connection, a database connection, or any number of things.
CAS defines standard permissions and permission sets that apply to all activities and all code run within the .NET Framework. When code is written with CAS in mind, code can request permissions from the system based on the activities that it needs to perform. It can also list the permissions that it would like to have but are not required for proper operation. Administrators can configure a security policy that dictates which sets of code (called ...
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