Author/Authors :
Schnyder, Reto University of Zurich - Institute of Mathematics, Switzerland , López-Ramos, Juan Antonio University of Almeria - Department of Mathematics, Spain , Rosenthal, Joachim University of Zurich - Institute of Mathematics, Switzerland , Schipani, Davide University of Zurich - Institute of Mathematics, Switzerland
Abstract :
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 attack is presented assuming malicious control of the communications of the last two users for the duration of only the key exchange.
