Cryptanalysis of Chang-Wu's group-oriented authentication and key exchange protocols

Hung Yu Chien, Tzong Chen Wu, Jinn Ke Jan, Yuh Min Tseng

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In 1998, Chang and Wu proposed a group-oriented authentication mechanism with key exchange [Computer Communications21 (1998) 485-497]. The authors show that the Chang-Wu protocols are vulnerable to the impersonation attack. They also give improvements that can not only eliminate the security flaw, but also reduce the redundant messages inherent in the original protocols.

Original languageEnglish
Pages (from-to)113-117
Number of pages5
JournalInformation Processing Letters
Issue number2
Publication statusPublished - 2001 Oct 31

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Signal Processing
  • Information Systems
  • Computer Science Applications

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