Code access security helps limit the access that code has to protected resources and operations. In the .NET Framework, code access security performs the following functions:
- Defines permissions and permission sets that represent the right to access various system resources.
- Enables code to demand that its callers have specific permissions.
- Enables code to demand that its callers possess a digital signature, thus allowing only callers from a particular organization or site to call the protected code.
- Enforces restrictions on code at run time by comparing the granted permissions of every caller on the call stack to the permissions that callers must have.
