Abstract. GOST 28147-89 is a well-known block cipher and the official encryption standard of the Russian Federation. Its large key size of 256 bits at a particularly low implementa...
An important open question in complexity theory is whether the circuit complexity class TC0 is (strictly) weaker than LOGSPACE. This paper considers this question from the viewpoi...
In this primarily expository article, I describe geometric approaches to variants of P v. NP, present several results that illustrate the role of group actions in complexity theory...
The elementary theories of Shannon information and Kolmogorov complexity are cmpared, the extent to which they have a common purpose, and where they are fundamentally different. T...
Abstract. We consider two standard notions in formal security protocol analysis: message deducibility and static equivalence under equational theories. We present polynomial-time a...