An evaluation of the Java security model

Java is a new programming language that has been developed by Sun Microsystems. They claim that Java has a number of advantages over traditional programming languages. One of these advantages is the ability to execute untrusted programs in a secure environment. After a brief introduction to the Java language this paper investigates the problems that would arise when running untrusted programs without providing a secure environment and several possible solutions to this problem. It then takes a close look at the solution provided by the Java security model in theory as well as in current implementations and evaluates their efficiency and flexibility for present and future ranges of application