Cryptanalysis of Liaw's broadcasting cryptosystem

Yuh-Min Tseng, Jinn Ke Jan

Research output: Contribution to journalArticle

9 Citations (Scopus)


In 1999, Liaw proposed a new broadcasting cryptosystem, which requires smaller bandwidth as compared to the previously proposed broadcasting cryptosystems. However, this article will show that the proposed system is insecure enough by presenting a conspiracy attack on it. We will also point out some ambiguous problems in Liaw's paper. Moreover, we propose an improved broadcasting cryptosystem, which is a slight modification of the proposed system to overcome the conspiracy attack.

Original languageEnglish
Pages (from-to)1575-1578
Number of pages4
JournalComputers and Mathematics with Applications
Issue number12
Publication statusPublished - 2001 Jun 1


All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computational Theory and Mathematics
  • Computational Mathematics

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