Abstract. In this paper we introduce the method of bi-linear cryptanalysis (BLC), designed specifically to attack Feistel ciphers. It allows to construct periodic biased character...
Extractors (defined by Nisan and Zuckerman) are procedures that use a small number of truly random bits (called the seed) to extract many (almost) truly random bits from arbitrar...
Semistructured data occur in situations where information lacks a homogeneous structure and is incomplete. Yet, up to now the incompleteness of information has not been re ected b...
We study how constraint-based static analysis can be applied to the automated and systematic debugging of program errors. Strongly moding and constraint-based mode analysis are tur...
We show that characteristic formulae for nite-state systems up to bisimulationlike equivalences (e.g., strong and weak bisimilarity) can be given in the simple branching-time temp...