Lecture Notes in Computer Science Edited by G Goos, J Hartmanis and J van Leeuwen 1977 Springer Berlin Heidelberg New York Barcelona Hong Kong London Milan Paris Singapore Tokyo Bimal Roy Eiji Okamoto (Eds.) Progress in Cryptology INDOCRYPT 2000 First International Conference in Cryptology in India Calcutta, India, December 10-13, 2000 Proceedings Springer Series Editors Gerhard Goos, Karlsruhe University, Germany Juris Hartmanis, Cornell University, NY, USA Jan van Leeuwen, Utrecht University, The Netherlands Volume Editors Bimal Roy Indian Statistical Institute Calcutta, India E-mail: bimal@isical.ac.in Eiji Okamoto University of Wisconsin Department of Computer Science Milwaukee, Wisconsin, USA E-mail: okamoto@cs.uwm.edu Cataloging-in-Publication Data applied for Die Deutsche Bibliothek - CIP-Einheitsaufnahme Progress in cryptology : proceedings / INDOCRYPT 2000, First International Conference in Cryptology in India, Calcutta, India, December 10 - 13, 2000 Bimal Roy ; Eiji Okamoto (ed.) - Berlin ; Heidelberg ; New York ; Barcelona ; Hong Kong ; London ; Milan ; Paris ; Singapore ; Tokyo : Springer, 2000 (Lecture notes in computer science ; Vol 1977) ISBN 3-540-41452-5 CR Subject Classification (1998): E.3, G.2.1, D.4.6, K.6.5, F.2.1-2, C.2, J.l ISSN 0302-9743 ISBN 3-540-41452-5 Springer-Verlag Berlin Heidelberg New York This work is subject to copyright All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9,1965, in its current version, and permission for use must always be obtained from Springer-Verlag Violations are liable for prosecution under the German Copyright Law Springer-Verlag Berlin Heidelberg New York a member of BertelsmannSpringer Science+Business Media GmbH © Springer-Verlag Berlin Heidelberg 2000 Printed in Germany Typesetting: Camera-ready by author Printed on acid-free paper SPIN 10781218 06/3142 10 Preface The field of Cryptology witnessed a revolution in the late seventies Since then it has been expanded into an important and exciting area of research Over the last two decades, India neither participated actively nor did it contribute significantly towards the development in this field However, recently a number of active research groups engaged in important research and developmental work have crystalized in different parts of India As a result, their interaction with the international crypto community has become necessary With this backdrop, it was proposed that a conference on cryptology - INDOCRYPT, be organized for the first time in India The Indian Statistical Institute was instrumental in hosting this conference INDOCRYPT has generated a large amount of enthusiasm amongst the Indians as well as the International crypto communities An INDOCRYPT steering committee has been formed and the committee has plans to make INDOCRYPT an annual event For INDOCRYPT 2000, the program committee considered a total of 54 papers and out of these 25 were selected for presentation The conference program also included two invited lectures by Prof Adi Shamir and Prof Eli Biham These proceedings include the revised versions of the 25 papers accepted by the program committee These papers were selected from all the submissions based on originality, quality and relevance to the field of Cryptology Revisions were not checked and the authors bear the full responsibility for the contents of the papers in these proceedings The selection of the papers was a very difficult and challenging task I wish to thank all the Program Committee members who did an excellent job in reviewing the papers and providing valuable feedback to the authors Each submission was reviewed by at least three (only a few by two) reviewers The program committee was assisted by many colleagues who reviewed submissions in their areas of expertise The list of external reviewers has been provided separately My thanks go to them all My sincere thanks goes to Springer-Verlag, in particular to Mr Alfred Hofmann, for the inclusion of the seminar proceedings in their prestigious series Lecture Notes in Computer Science I am also indebted to Prof Jacques Stern, Prof Jennifer Seberry, and Prof Cunsheng Ding for giving their valuable advise and suggestions towards making the publication of the proceedings of INDOCRYPT 2000 possible I gratefully acknowledge financial support from diffferent organizations towards making INDOCRYPT 2000 a success The contributors were AgniRoth (California, USA), Tata Conusltancy Service (Calcutta, India), CMC Limited (New Delhi, India), Cognizant Technology Solutions (Calcutta, India), Gemplus (Bangalore, India), Ministry of Information Technology (Govt, of India), and IDRBT (Hyderabad, India) I once again thank them all In organizing the scientific program and putting together these proceedings I have been assisted by many people In particular I would like to thank Subhamoy Maitra, Sarbani Palit, Arindom De, Kishan Chand Gupta, and Sandeepan Chowdhury VI Preface Finally I wish to thank all the authors who submitted papers, making this conference possible, and the authors of successful papers for updating their papers in a timely fashion, making the production of these proceedings possible December 2000 Bimal Roy Program Co-chairs Bimal Roy Eiji Okamoto Indian Statistical Institute, India University of Wisconsin-Milwaukee, USA General Co-chairs Cunsheng Ding R Balasubramaniam Hong Kong University of Science & Technolo Hong Kong Institute of Mathematical Sciences, India Organizing Committee Chair Rajeev L Karandikar Indian Statistical Institute, India Program Committee R Balasubramaniam Rana Barua Don Beaver Thomas A Berson Paul Camion Cunsheng Ding K Gopalakrishnan Tor Helleseth Thomas Johansson Charanjit S Jutla Rajeev L Karandikar Kwang Jo Kim Andrew M Klapper Arjen Lenstra Tsutomu Matsumoto Alfred Menezes Ron Mullin Phong Nguyen Eiji Okamoto Tatsuaki Okamoto Dingyi Pei Radha Poovendran Bart Preneel Bimal Roy Palash Sarkar P K Saxena Jennifer Seberry K Sikdar Jacques Stern C E Veni Madhavan M Vidyasagar Michael Wiener Institute of Mathematical Sciences, India Indian Statistical Institute, India Certco, USA Anagram Laboratories, USA CNRS, France Hong Kong University of Science & Tecnolog Hong Kong East Carolina University, USA University of Bergen, Norway University of Lund, Sweden IBM, T J Watson Lab, USA Indian Statistical Institute, India Information & Communications University, Korea University of Kentucky, USA Citibank, USA Yokohama National University, Japan University of Waterloo, Canada University of Waterloo, Canada ENS, France University of Wisconsin-Milwaukee, USA NTT Labs, Japan Chinese Academy of Science, China University of Maryland, USA COSIC, Belgium Indian Statistical Institute, India Indian Statistical Institute, India SAG, India University of Wollongong, Australia Indian Statistical Institute, India ENS, France Indian Institute of Sciences, India Tata Consultancy Services, India Entrust Technologies, Canada VIII Organization Organizing C o m m i t t e e Aditya Bagchi V P Gulati Rajeev L Karandikar Subhamoy Maitra Mandar Mitra Sarbani Palit Bimal Roy M Vidyasagar K S Vijayan Indian Statistical Institute, IDRBT, India Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute, Tata Consultancy Services, Indian Statistical Institute, India India India India India India India India List of External Reviewers Aditya Bagchi S S Bedi A K Bhateja Carlo Blundo Johan Borst Antoon Bosselaers Dr Chris Charnes Suresh Chari Patrik Ekdahl Shai Halevi Fredrik Jnsson Mike Just Meena Kumari Subhamoy Maitra Nasir D Memon Serge Mister Mandar Mitra Anish Ch Mukherjee Pinakpani Pal Sarbani Palit Matthew Parker Enes Pasalic Rajesh Pillai David Pointcheval Havard Raddum Pankaj Rohatgi Reihaneh Safavi-Naini Yuriy Tarannikov Serge Vaudenay Frederik Vercauteren Robert Zuccherato Indian Statistical Institute, India SAG,India SAG, India Universita di Salerno, Italy Katholieke Universiteit Leuven, Belgium Katholieke Universiteit Leuven, Belgium University of Melbourne, Australia IBM, T J Watson Lab, USA Lund UniversityLund, Sweden IBM, T J Watson Lab, USA Lund UniversityLund, Sweden Entrust Technologies, Canada SAG, India Indian Statistical Institute, India Polytechnic University, New York, USA Entrust Technologies, Canada Indian Statistical Institute, India Indian Statistical Institute, India Indian Statistical Institute, India Indian Statistical Institute, India University of Bergen, Norway Lund UniversityLund, Sweden SAG, India ENS, France University of Bergen, Norway IBM, T J Watson Lab, USA University of Wollongong, Australia Moscow State University, Russia EPFL, France Katholieke Universiteit Leuven, Belgium Entrust Technologies, Canada Table of Contents Stream Ciphers and Boolean Functions The Correlation of a Boolean Function with Its Variables Dingyi Pei and Wenliang Qin On Choice of Connection-Polynomials for LFSR-Based Stream Ciphers Jamhunathan K On Resilient Boolean Functions with Maximal Possible Nonlinearity Yuriy V Tarannikov 19 Cryptanalysis I : Stream Ciphers Decimation Attack of Stream Ciphers Eric Filiol Cryptanalysis of the A / GSM Stream Cipher Eli Biham and Orr Dunkelman 31 43 Cryptanalysis II : Block Ciphers On Bias Estimation in Linear Cryptanalysis AH Ay dm Selguk On the Incomparability of Entropy and Marginal Guesswork in BruteForce Attacks John O Pliam Improved Impossible Differentials on Twofish Eli Biham and Vladimir Furman 52 67 80 Electronic Cash & Multiparty Computation An Online, Transferable E-Cash Payment System R Sai Anand and C.E Veni Madhavan 93 Anonymity Control in Multi-bank E-Cash System Ik Rae Jeong and Dong Hoon Lee 104 Efficient Asynchronous Secure Multiparty Distributed Computation K Srinathan and C Pandu Rang an 117 Tolerating Generalized Mobile Adversaries in Secure Multiparty Computation K Srinathan and C Pandu Rangan 130 ... Roy Eiji Okamoto (Eds.) Progress in Cryptology INDOCRYPT 2000 First International Conference in Cryptology in India Calcutta, India, December 10-13, 2000 Proceedings Springer Series Editors Gerhard... Vijayan Indian Statistical Institute, IDRBT, India Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute, Indian Statistical Institute,... Cataloging -in- Publication Data applied for Die Deutsche Bibliothek - CIP-Einheitsaufnahme Progress in cryptology : proceedings / INDOCRYPT 2000, First International Conference in Cryptology in India,