This note describes a theoretical chosen-plaintext attack on the VAES3 mode for format-preserving encryption. VAES3 was specified under the name FF2 in Draft NIST Special Publication 800-38G.

Factor price equalization (FPE) is a central theme in trade theory, for which [Dixit, A.K., Norman, V., 1980. Theory of International Trade, Cambridge University Press, London] establish the necessary and sufficient condition (the Dixit–Norman condition). [Deardorff, A.V. 1994. The possibility of factor price equalization: revisited, Journal of International Economics 36, 167–175.] provides a m...

The construction of a quantal Kolmogorov entropy that tends to the classical Kolmogorov entropy in the limit h -t 0 is discussed. The approach is to use sets of functions rather than disjoint partitions and involves the use of pseudo-differential operators.

Let $A$ be a unital $C^{*}$-algebra which has a faithful state. If $varphi:Arightarrow A$ is a unital linear map which is bijective and invertibility preserving or surjective and spectral radius preserving, then $varphi$ is a Jordan isomorphism. Also, we discuss other types of linear preserver maps on $A$.

due to the rapid growth of data mining technology, obtaining private data on users through this technology becomes easier. association rules mining is one of the data mining techniques to extract useful patterns in the form of association rules. one of the main problems in applying this technique on databases is the disclosure of sensitive data by endangering security and privacy. hiding the as...

Asymptotic preserving (AP) schemes for multiscale kinetic and hyperbolic equations: a review Abstract. Kinetic and hyperbolic equations contain small scales (mean free path/time, Debye length, relaxation or reaction time, etc.) that lead to various different asymptotic regimes, in which the classical numerical approximations become prohibitively expensive. Asymptotic-preserving (AP) schemes are...

Kinetic and hyperbolic equations contain small scales (mean free path/time, Debye length, relaxation or reaction time, etc.) that lead to various different asymptotic regimes, in which the classical numerical approximations become prohibitively expensive. Asymptotic-preserving (AP) schemes are schemes that are efficient in these asymptotic regimes. The designing principle of AP schemes are to p...