Roland Gillard

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The parallelization of two applications in symmetric cryptography is considered: block ciphering and a new method based on random sampling for the selection of basic substitution boxes (S-box) with good algebraic properties. While both consists mainly in loops with independent computations and possibly early termination, they are subject to changing(More)
In this document we present a new way to bound the probability of occurrence of an n-round differential in the context of differential cryptanalysis. Hence this new model allows us to claim proof of resistance against impossible differential cryptanalysis, as defined by Bi-ham and al. in 1999. This work will be described through the example of CS-Cipher, to(More)
Problem: The National Institutes of Health estimates that 20.8 million Americans are afflicted with diabetes. Due to the prevalence of the disease, The Institute of Medicine has identified diabetes as one of its twenty priority areas for national action. Evidence: Diabetes is a significant health problem in southeastern PA. In Lehigh County, PA, the death(More)
"The philosophy of Community Care has resulted in the closure of several mental hospitals in this country. The ethos of the Worcester Development Project saw the closure of St Wulstan's and Powick Hospitals, and their replacement by a community-based service. This paper briefly describes the outcome of a three-year retrospective study completed in 1988(More)
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