.NET Framework Security

Different Sources of Evidence

I mentioned earlier that evidence is a collection of information. This was meant very literally. Evidence is represented by the System.Security.Policy.Evidence class, and this class implements the System.Collections.ICollection interface. This means that it is a container class for instances of other classes. Actually, each evidence object has two separate collections to cover two different sources of evidence:

• Host-provided evidence

• Assembly-provided evidence

TIP

To gain a more practical understanding of what evidence looks like on an assembly, compile and run the program from Listing 5.1. It simply looks at the Evidence property on a System.Reflection.Assembly object.

Listing 5.1. Program That Prints Out Its Own ...