The purpose of algebraic attacks on stream and block ciphers is to recover the secret key by solving an overdefined system of multivariate algebraic equations. They become very eff...
This paper is an attempt to answer the following question: how much improvement can be obtained in logic decomposition by using Boolean divisors? Traditionally, the existence of t...
In this paper dense families of database relations are introduced. We characterize dependencies and keys of relation instances in terms of dense families. Key functions are also in...