A new perturbed Matsumoto-Imai signature scheme

Wenbin Zhang, Chi How Tan

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

3 Citations (Scopus)

Abstract

Two new modification methods, triangular perturbation and dual perturbation, are proposed for multivariate signature schemes to enhance the security with almost no loss of efficiency. A new multivariate signature scheme is then constructed by applying the two new methods together to the well-known Matsumoto-Imai cryptosystem. This new signature scheme has a specially designed structure making it have several competitive advantages: 1) the public map remains surjective (this property is important for a signature scheme), 2) it is almost as efficient as the original scheme and 3) it can resist all current known structure-based attacks to MPKC and behave like a random system against direct attacks. A new efficient and effective modification method is thus provided for multivariate signature schemes.

Original languageEnglish
Title of host publicationASIAPKC 2014 - Proceedings of the 2nd ACM Workshop on ASIA Public-Key Cryptography
PublisherAssociation for Computing Machinery
Pages43-47
Number of pages5
ISBN (Print)9781450328012
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2nd ACM Asia Public-Key Cryptography Workshop, AsiaPKC 2014 - Kyoto, Japan
Duration: 3 Jun 20143 Jun 2014

Publication series

NameASIAPKC 2014 - Proceedings of the 2nd ACM Workshop on ASIA Public-Key Cryptography

Conference

Conference2nd ACM Asia Public-Key Cryptography Workshop, AsiaPKC 2014
Country/TerritoryJapan
CityKyoto
Period3/06/143/06/14

Keywords

  • digital signature
  • multivariate public key cryptosystem
  • post-quantum cryptography

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