Browsing by Author "Irvine, Sean A."

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  • Jumble Java Byte Code to Measure the Effectiveness of Unit Tests

    Irvine, Sean A.; Pavlinic, Tin; Trigg, Leonard E.; Cleary, John G.; Inglis, Stuart J.; Utting, Mark (IEEE Computer Society, 2007)
    Jumble is a byte code level mutation testing tool for Java which inter-operates with JUnit. It has been designed to operate in an industrial setting with large projects. Heuristics have been included to speed the checking ...
  • On the insecurity of arithmetic coding

    Cleary, John G.; Irvine, Sean A.; Rinsma-Melchert, Ingrid (1994-06)
    Arithmetic coding is a technique which converts a given probability distribution into an optimal code and is commonly used in compression schemes. The use of arithmetic coding as an encryption scheme is considered. The ...
  • The subset sum problem and arithmetic coding

    Irvine, Sean A.; Cleary, John G.; Rinsma-Melchert, Ingrid (University of Waikato, Department of Computer Science, 1995-03)
    The security offered by symmetric cryptosystems based on the arithmetic coding algorithm is examined. It is shown that this can be reduced naturally to the subset sum problem. The subset sum problem is NP-complete, however, ...