A forward-secure e-mail protocol without certificated public keys

Jeong Ok Kwon, Ik Rae Jeong, Dong Hoon Lee

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Forward secrecy in an e-mail system means that compromising of the long-term secret keys of the mail users and mail servers does not affect the confidentiality of the e-mail messages. Previous forward-secure e-mail protocols used the certified public keys of the users using PKI (Public Key Infrastructure). In this paper, we propose a password-based authenticated e-mail protocol providing forward secrecy. The proposed protocol does not require certified public keys and is sufficiently efficient to be executed on resource-restricted mobile devices.

Original languageEnglish
Pages (from-to)4227-4231
Number of pages5
JournalInformation Sciences
Issue number24
Publication statusPublished - 2009 Dec 15

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2008-314-D00412).

Copyright 2009 Elsevier B.V., All rights reserved.


  • Diffie-Hellman key exchange
  • E-mail
  • Forward secrecy
  • Mobile network
  • Password

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Theoretical Computer Science
  • Computer Science Applications
  • Information Systems and Management
  • Artificial Intelligence


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