Abstract

Existing approaches are inadequate to address the information flow in Java bytecode and the type systems verification often used in these approaches is imprecise. This paper presents a method to disclose Java bytecode information flow, in which the information dependence relationship among the variables in the bytecode is determined by data-flow analysis and information flow policy is verified by type-checking method. Since the analysis object is bytecode, this approach can be used for Java mobile code systems. The precision of verification can be improved because of this approach.

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