What is the idea behind IIdentity and IPrincipal in .NET

Question

So, what is the purpose for existence of both IIdentity and IPrincipal, and not some IIdentityMergedWithPrincipal? When is it not enough t

Answer 1

As MSDN site says:

The identity object encapsulates information about the user or entity being validated. At their most basic level, identity objects contain a name and an authentication type.

whereas

The principal object represents the security context under which code is running.

Refer to the above link for a lot more info.

HTH