14 citations · 30 across the 5 of their papers we have counts for
9 papers
Efficient Description of some Classes of Codes using Group Algebras
Henry Chimal-Dzul, Niklas Gassner, Joachim Rosenthal +1
Circulant matrices are an important tool widely used in coding theory and cryptography. A circulant matrix is a square matrix whose rows are the cyclic shifts of the first row. Suc…
Irreducible compositions of degree two polynomials over finite fields have regular structure
Andrea Ferraguti, Giacomo Micheli, Reto Schnyder
Let be an odd prime power and be the set of monic irreducible polynomials in which can be written as a composition of monic degree two polynomials. In this…
An Application of Group Theory in Confidential Network Communications
Juan Antonio Lopez-Ramos, Joachim Rosenthal, Davide Schipani +1
A new proposal for group key exchange is introduced which proves to be both efficient and secure and compares favorably with state of the art protocols.
On sets of irreducible polynomials closed by composition
Andrea Ferraguti, Giacomo Micheli, Reto Schnyder
Let be a set of monic degree polynomials over a finite field and let be the compositional semigroup generated by . In this paper we establish a nec…
An active attack on a distributed Group Key Exchange system
Mohamed Baouch, Juan Antonio López-Ramos, Reto Schnyder +1
In this work, we introduce an active attack on a Group Key Exchange protocol by Burmester and Desmedt. The attacker obtains a copy of the shared key, which is created in a collabor…
An Active Attack on a Multiparty Key Exchange Protocol
Reto Schnyder, Juan Antonio Lopez-Ramos, Joachim Rosenthal +1
The multiparty key exchange introduced in Steiner et al.\@ and presented in more general form by the authors is known to be secure against passive attacks. In this paper, an active…