New approach for selectively convertible undeniable signature schemes

Kaoru Kurosawa, Tsuyoshi Takagi

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

27 Citations (Scopus)

Abstract

In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows a more direct selective conversion than the previous schemes, and the security can be proved formally. Further, our disavowal protocols do not require parallelization techniques to reach a significant soundness probability. Also, our second scheme is the first selectively convertible scheme which is provably secure without random oracles.

Original languageEnglish
Title of host publicationAdvances in Cryptology - ASIACRYPT 2006 - 12th International Conference on the Theory and Application of Cryptology and Information Security, Proceedings
Pages428-443
Number of pages16
DOIs
Publication statusPublished - Dec 1 2006
Event12th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2006 - Shanghai, China
Duration: Dec 3 2006Dec 7 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4284 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other12th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2006
CountryChina
CityShanghai
Period12/3/0612/7/06

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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