Implementation of security policies in computer systems by means of Aspect-Oriented Programming

Aspect-Oriented Programming is considered as the mean to implement security policies. Short description of AspectJ programming language is given along with security aspect implementation example. The notions of Object-Oriented Programming and Meta-Object Protocol are introduced showing the way of implementing Aspect-Oriented Programming by means of Meta-Object Protocol. AspectTalk programming language which was implemented by author is briefly introduced. Simple security policy implementation in AspectTalk is given and commented.