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Writing Secure Code by Michael Howard and David LeBlanc

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Chapter 16. Securing RPC, ActiveX Controls, and DCOM

Remote procedure calls (RPC) have been a backbone communications mechanism since the early days of Microsoft Windows NT 3.1 (way back in 1993). There are two main variants on RPC: DCE (Distributed Computing Environment) RPC and ONC (Open Network Computing) RPC. Both are open standards, and both are implemented on several platforms. DCE RPC is the version Microsoft platforms use, although many ONC RPC applications also run on Windows platforms. DCE RPC is sometimes called Microsoft RPC, and ONC RPC is sometimes called Sun RPC. In the remainder of this chapter, RPC will refer to Microsoft’s implementation of DCE RPC, although some of the concepts apply to both types of RPC.

A large number of applications ...

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