Preface: Volume 6

The second International Workshop on Coding and Cryptography (WCC 2001) was held in January 8-12, 2001 at the “Cercle National des Armées”, Paris, France. It was jointly organized by INRIA (French National Institute for Research in Computer Science and Control) and the research center of the “Écoles de Coëtquidan”. m was to bring together researchers coming from coding theory and cryptography. More than 140 participants (77 academics, 27 studients, 19 researchers from industry …) coming from 31 countries attended the workshop -- France (54), United States (13), Russia (13), Sweden (8), Germany (6), Norway (6), Spain (4), Italy (4), Irland (3), South Korea (3), United Kingdom (3), Canada, Finland, Lituania, The Netherlands, Denmark, Belgium, Bulgaria, Libanon, Israel, Malawi, India, Japan, Mexico, Australia, Singapore, Hong Kong… A wide range of topics were addressed during the meeting, from the more fundamental, as finite fields theory (dicrete logarithm) and designs to subjects closer to industrial applications as cryptography, convolutional coding or decoding of block codes. Algebraic coding theory was treated in all its variety, from the classical problems as code classification or parameter determination to more recent concerns as codes over rings. Cryptography was also represented in all its components. Let us mention also that some of the talks have treated of the interactions between coding and cryptography. ogram committee was composed of: g, Bell Laboratories, USA tros, ENST Paris, France teaut, INRIA Rocquencourt, France let, INRIA Rocquencourt and Université Paris 8, France (Chair) fey, University of Michigan, USA en, ENST Paris, France g, Hong Kong University of Science and Technology, China bertin, German Information Security Agency, Germany unekov, Institute of Mathematics, Sofia, Bulgaria rsma, University of Illinois at Urbana-Champaign, USA zpatrick, University of Cork, Ireland idulin, MIPT, Russia ault, France Telecom / CNET, France coun, Ecole Polytechnique de Montréal, Canada ari, Université de Toulon, France oldt, Technical University of Denmark, Denmark ansson, Lund University, Sweden atianski, IITP, Russian Academy of Sciences, Russia y-dit-Véhel, ENSTA, France derreiter, Austrian Academy of Sciences, Austria erg, NOKIA, Finland ss, University of Illinois at Chicago, USA é, I3S CNRS, Université de Nice--Sophia-Antipolis, France ia-Recillas, Univ. Autonoma Metropolitana-Iztapalapa, Mexico Tillich, Université de Paris XI, France fmann, Université de Toulon, France chosen 56 papers among 92 submissions, all of very good scientific level. All 92 submitted abstracts have been reviewed by two referees. For some papers, the members of the program committee have received help from other researchers: Mehdi-Laurent Akkar, Daniel Augot, Thierry Berger, Pascale Charpin, Pierrick Gaudry, Olav Geil, Henri Gilbert, Philippe Guillot, Johan P. Hansen, Fredrik Jönsson, Torleiv Kloeve, Pierre Loidreau, Subhamoy Maitra, Jean-François Misarsky, Cyril Prissete, Nicolas Sendrier, Christian Thommesen, Jacques Traoré and Gerardo Vega-Hernandez. ition we had four outstanding invited talks given by T. Ericson, J. Massey, F. Morain and T. Helleseth. lectronic book contains all extended abstracts of accepted contributed talks and the abstract of Tor Hellesethʹs invited talk.