An Improved Nominative Proxy Signature for Mobile Communication

Jianhong ZHANG; Qianhong WU

doi:10.1093/ietisy/e88-d.7.1697

An Improved Nominative Proxy Signature for Mobile Communication

Jianhong ZHANG, Qianhong WU

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As a specific signature, the nominative proxy signature scheme is a method in which the designated proxy signer generates a nominative signature and transmits it to a verifier, instead of the original signer. Recently, Seo et al. proposed a nominative proxy signature scheme for mobile communication and claimed that the scheme hash non-repudiation. However, after analyzing the scheme, we show that the scheme is insecure and cannot provide non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification version of the scheme to repair the security flaw.

Publication: IEICE TRANSACTIONS on Information Vol.E88-D No.7 pp.1697-1699

Publication Date: 2005/07/01

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Online ISSN

DOI: 10.1093/ietisy/e88-d.7.1697

Type of Manuscript: PAPER

Category: Application Information Security

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Jianhong ZHANG, Qianhong WU, "An Improved Nominative Proxy Signature for Mobile Communication" in IEICE TRANSACTIONS on Information, vol. E88-D, no. 7, pp. 1697-1699, July 2005, doi: 10.1093/ietisy/e88-d.7.1697.
Abstract: As a specific signature, the nominative proxy signature scheme is a method in which the designated proxy signer generates a nominative signature and transmits it to a verifier, instead of the original signer. Recently, Seo et al. proposed a nominative proxy signature scheme for mobile communication and claimed that the scheme hash non-repudiation. However, after analyzing the scheme, we show that the scheme is insecure and cannot provide non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification version of the scheme to repair the security flaw.
URL: https://global.ieice.org/en_transactions/information/10.1093/ietisy/e88-d.7.1697/_p

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@ARTICLE{e88-d_7_1697,
author={Jianhong ZHANG, Qianhong WU, },
journal={IEICE TRANSACTIONS on Information},
title={An Improved Nominative Proxy Signature for Mobile Communication},
year={2005},
volume={E88-D},
number={7},
pages={1697-1699},
abstract={As a specific signature, the nominative proxy signature scheme is a method in which the designated proxy signer generates a nominative signature and transmits it to a verifier, instead of the original signer. Recently, Seo et al. proposed a nominative proxy signature scheme for mobile communication and claimed that the scheme hash non-repudiation. However, after analyzing the scheme, we show that the scheme is insecure and cannot provide non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification version of the scheme to repair the security flaw.},
keywords={},
doi={10.1093/ietisy/e88-d.7.1697},
ISSN={},
month={July},}

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TY - JOUR
TI - An Improved Nominative Proxy Signature for Mobile Communication
T2 - IEICE TRANSACTIONS on Information
SP - 1697
EP - 1699
AU - Jianhong ZHANG
AU - Qianhong WU
PY - 2005
DO - 10.1093/ietisy/e88-d.7.1697
JO - IEICE TRANSACTIONS on Information
SN -
VL - E88-D
IS - 7
JA - IEICE TRANSACTIONS on Information
Y1 - July 2005
AB - As a specific signature, the nominative proxy signature scheme is a method in which the designated proxy signer generates a nominative signature and transmits it to a verifier, instead of the original signer. Recently, Seo et al. proposed a nominative proxy signature scheme for mobile communication and claimed that the scheme hash non-repudiation. However, after analyzing the scheme, we show that the scheme is insecure and cannot provide non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification version of the scheme to repair the security flaw.
ER -