Privacy-enhanced deniable authentication e-mail service

JuHee Ki, Jung Yeong Hwang, DaeHun Nyang, Dong Hoon Lee, Jong In Lim

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

4 Citations (Scopus)

Abstract

E-mail brings us lots of conveniences. Especially with help of PGP and S/MIME, it gives both confidentiality and message/origin authentication. However, in some cases for strong privacy, a message sender will not want to let others know even the fact that he sent a message to a recipient. Very recently, Harn and Ren proposed a fully deniable authentication scheme for E-mail where a sender can repudiate his or her signature. In this paper, however, their deniable authentication scheme is proved not to be fully deniable. To resolve this deniability problem, we suggest a designated verifier signature scheme to support strong privacy, and construct a privacy-enhanced deniable authentication E-mail scheme using the designated verifier signature scheme. Compared with the Harn and Ren's scheme, the proposed scheme has a simple cryptographic structure and can be easily realized with the existing secure E-mail systems.

Original languageEnglish
Title of host publicationCommunications in Computer and Information Science
Pages16-29
Number of pages14
Volume194 CCIS
DOIs
Publication statusPublished - 2011 Sep 2
EventInternational Conference on Digital Enterprise and Information Systems, DEIS 2011 - London, United Kingdom
Duration: 2011 Jul 202011 Jul 22

Publication series

NameCommunications in Computer and Information Science
Volume194 CCIS
ISSN (Print)18650929

Other

OtherInternational Conference on Digital Enterprise and Information Systems, DEIS 2011
CountryUnited Kingdom
CityLondon
Period11/7/2011/7/22

Keywords

  • Anonymity
  • authentication
  • Deniable Authentication
  • E-mail
  • Strong Designated Verifier Signature

ASJC Scopus subject areas

  • Computer Science(all)

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  • Cite this

    Ki, J., Yeong Hwang, J., Nyang, D., Lee, D. H., & Lim, J. I. (2011). Privacy-enhanced deniable authentication e-mail service. In Communications in Computer and Information Science (Vol. 194 CCIS, pp. 16-29). (Communications in Computer and Information Science; Vol. 194 CCIS). https://doi.org/10.1007/978-3-642-22603-8_2