On the proxy-protected property of Chen et al.'s proxy multisignature schemes

Pei Hui Huang, Hsiang An Wen, Chih Hung Wang, Tzone-Lih Hwang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Recently, Chen, Chung, and Huang proposed a traceable proxy multisignature scheme based on the elliptic curve cryptosystem. However, this paper shows that the original signers can produce a valid signature as the proxy signer does in the proxy protected scheme. Therefore, Chen et al.'s proxy-protected scheme cannot protect the proxy signer from being forged by the original signers. We further find that the early work of Chen et al. in 2003 suffers the same attack. To overcome this problem, an improved scheme will be presented.

Original languageEnglish
Pages (from-to)55-60
Number of pages6
JournalInformatica
Volume18
Issue number1
Publication statusPublished - 2007 Jan 1

Fingerprint

Multisignature
Cryptography
Elliptic Curve Cryptosystem
Signature
Attack
Valid

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Applied Mathematics

Cite this

Huang, Pei Hui ; Wen, Hsiang An ; Wang, Chih Hung ; Hwang, Tzone-Lih. / On the proxy-protected property of Chen et al.'s proxy multisignature schemes. In: Informatica. 2007 ; Vol. 18, No. 1. pp. 55-60.
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On the proxy-protected property of Chen et al.'s proxy multisignature schemes. / Huang, Pei Hui; Wen, Hsiang An; Wang, Chih Hung; Hwang, Tzone-Lih.

In: Informatica, Vol. 18, No. 1, 01.01.2007, p. 55-60.

Research output: Contribution to journalArticle

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