AMERICA:Beothuk and Micmac.Frank G. Speck

Memory Efficient Speck Based Coders

Alexandre Almeida Frank - Olme Speck

The aim of this work is to describe main aspects of the modern theory of fractional differential equations, to present elements of classification of fractional differential equations, to formulate basic components of investigations related to fractional differential equations, to pose some open problems in the study of fractional differential equations. A survey of results by S.G. Samko on diff...

Linear cryptanalysis of reduced-round SPECK

Article history: Received 15 September 2015 Accepted 5 November 2015 Available online 2 December 2015 Communicated by S.M. Yiu

Rotational-XOR Cryptanalysis of Reduced-round SPECK

In this paper we formulate a SAT/SMT model for Rotational-XOR (RX) cryptanalysis in ARX primitives for the first time. The model is successfully applied to the block cipher family Speck, and distinguishers covering more rounds than previously are found, as well as RX-characteristics requiring less data to detect. In particular, we present distinguishers for 10, 11 and 12 rounds for Speck32/64 w...

G-Frames, g-orthonormal bases and g-Riesz bases

G-Frames in Hilbert spaces are a redundant set of operators which yield a representation for each vector in the space. In this paper we investigate the connection between g-frames, g-orthonormal bases and g-Riesz bases. We show that a family of bounded operators is a g-Bessel sequences if and only if the Gram matrix associated to its denes a bounded operator.