Fast cryptanalysis of the Matsumoto-Imai public key scheme

P. Delsarte, Y. Desmedt, A. Odlyzko, P. Piret

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

The Matsumoto-Imai public key scheme was developed to provide very fast signatures. It is based on substitution polynomials over GF(2m). This paper shows in two ways that the Matsumoto-Imai public key scheme is very easy to break. In the faster of the two attacks the time to cryptanalyze the scheme is about proportional to the binary length of the public key. This shows that Matsumoto and Imai greatly overestimated the security of their scheme.

Original languageEnglish (US)
Title of host publicationAdvances in Cryptology
Subtitle of host publicationProceedings of EUROCRYPT 1984 - A Workshop on the Theory and Application of Cryptographic Techniques
EditorsIngemar Ingemarsson, Norbert Cot, Thomas Beth
PublisherSpringer Verlag
Pages142-149
Number of pages8
ISBN (Print)9783540160762
DOIs
StatePublished - 1985
EventWorkshop on the Theory and Application of Cryptographic Techniques, EUROCRYPT 1984 - Paris, France
Duration: Apr 9 1984Apr 11 1984

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume209 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

OtherWorkshop on the Theory and Application of Cryptographic Techniques, EUROCRYPT 1984
CountryFrance
CityParis
Period4/9/844/11/84

Bibliographical note

Publisher Copyright:
© 1985, Springer-Verlag Berlin Heidelberg.

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