Analysis and improvement of authenticatable ring signcryption scheme

Fa Gen Li, Shirase Masaaki, Takagi Tsuyoshi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We show that the Zhang-Yang-Zhu-Zhang identity-based authenticatable ring signcryption scheme is not secure against chosen plaintext attacks. Furthermore, we propose an improved scheme that remedies the weakness of the Zhang-Yang-Zhu-Zhang scheme. The improved scheme has shorter ciphertext size than the Zhang-Yang-Zhu-Zhang scheme. We then prove that the improved scheme satisfies confidentiality, unforgeability, anonymity and authenticatability. Copyright.

Original languageEnglish
Pages (from-to)679-683
Number of pages5
JournalJournal of Shanghai Jiaotong University (Science)
Volume13 E
Issue number6
DOIs
Publication statusPublished - Dec 1 2008

All Science Journal Classification (ASJC) codes

  • General

Cite this

Analysis and improvement of authenticatable ring signcryption scheme. / Li, Fa Gen; Masaaki, Shirase; Tsuyoshi, Takagi.

In: Journal of Shanghai Jiaotong University (Science), Vol. 13 E, No. 6, 01.12.2008, p. 679-683.

Research output: Contribution to journalArticle

Li, Fa Gen ; Masaaki, Shirase ; Tsuyoshi, Takagi. / Analysis and improvement of authenticatable ring signcryption scheme. In: Journal of Shanghai Jiaotong University (Science). 2008 ; Vol. 13 E, No. 6. pp. 679-683.
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