Can you Trust your Data?

Peter Ørbæk


A new program analysis is presented, and two compile time methods for this analysis are given. The analysis attempts to answer the question: “Given some trustworthy and some untrustworthy input, can we trust the value of a given variable after execution of some code”. The analyses are based on an abstract interpretation framework and a constraint generation
framework, respectively. The analyses are proved safe with respect to an instrumented semantics. We explicitly deal with a language with pointers and possible aliasing problems.
The constraint based analysis is related directly to the abstract interpretation and therefore indirectly to the instrumented semantics.

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ISSN: 0909-0878 

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