Remarks on a new key authentication scheme based on discrete logarithms

Da Zhi Sun; Zhen Fu Cao; Yu Sun

doi:10.1016/j.amc.2004.07.021

Remarks on a new key authentication scheme based on discrete logarithms

Da Zhi Sun^*
, Zhen Fu Cao
, Yu Sun

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

To provide non-repudiation of the user's public key, Lee et al. proposed an improved public key authentication scheme for cryptosystems based on discrete logarithms in 2003. However, we demonstrate that a dishonest user can forge the public key via the verification equation. Therefore, this scheme cannot achieve the non-repudiation service like its previous versions.

Original language	English
Pages (from-to)	572-575
Number of pages	4
Journal	Applied Mathematics and Computation
Volume	167
Issue number	1
DOIs	https://doi.org/10.1016/j.amc.2004.07.021
State	Published - 5 Aug 2005
Externally published	Yes

Keywords

Key authentication
Non-repudiation
Public key

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10.1016/j.amc.2004.07.021

Cite this

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title = "Remarks on a new key authentication scheme based on discrete logarithms",

abstract = "To provide non-repudiation of the user's public key, Lee et al. proposed an improved public key authentication scheme for cryptosystems based on discrete logarithms in 2003. However, we demonstrate that a dishonest user can forge the public key via the verification equation. Therefore, this scheme cannot achieve the non-repudiation service like its previous versions.",

keywords = "Key authentication, Non-repudiation, Public key",

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year = "2005",

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AU - Sun, Da Zhi

AU - Cao, Zhen Fu

AU - Sun, Yu

PY - 2005/8/5

Y1 - 2005/8/5

N2 - To provide non-repudiation of the user's public key, Lee et al. proposed an improved public key authentication scheme for cryptosystems based on discrete logarithms in 2003. However, we demonstrate that a dishonest user can forge the public key via the verification equation. Therefore, this scheme cannot achieve the non-repudiation service like its previous versions.

AB - To provide non-repudiation of the user's public key, Lee et al. proposed an improved public key authentication scheme for cryptosystems based on discrete logarithms in 2003. However, we demonstrate that a dishonest user can forge the public key via the verification equation. Therefore, this scheme cannot achieve the non-repudiation service like its previous versions.

KW - Key authentication

KW - Non-repudiation

KW - Public key

UR - https://www.scopus.com/pages/publications/24944572292

U2 - 10.1016/j.amc.2004.07.021

DO - 10.1016/j.amc.2004.07.021

M3 - 文章

AN - SCOPUS:24944572292

SN - 0096-3003

VL - 167

SP - 572

EP - 575

JO - Applied Mathematics and Computation

JF - Applied Mathematics and Computation

IS - 1

ER -

Remarks on a new key authentication scheme based on discrete logarithms

Abstract

Keywords

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