Signature scheme based on discrete logarithm without using one-way hash function

C. Y. Yeun; C. J. Mitchell; S. L. Ng

doi:10.1049/el:19981602

Signature scheme based on discrete logarithm without using one-way hash function

C. Y. Yeun, C. J. Mitchell, S. L. Ng

Electrical Engineering

University of London

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

1 Scopus citations

Abstract

Shao claims that an ElGamal variant is immune to homomorphism attack. The present work illustrates that contrary to this, the scheme is vulnerable to homomorphism attacks. The success of such an attack appears to be more likely than finding a discrete logarithm, as long as the random integer used to construct the signature is chosen at random.

Original language	British English
Pages (from-to)	2329-2330
Number of pages	2
Journal	Electronics Letters
Volume	34
Issue number	24
DOIs	https://doi.org/10.1049/el:19981602
State	Published - 1 Jan 1998

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title = "Signature scheme based on discrete logarithm without using one-way hash function",

abstract = "Shao claims that an ElGamal variant is immune to homomorphism attack. The present work illustrates that contrary to this, the scheme is vulnerable to homomorphism attacks. The success of such an attack appears to be more likely than finding a discrete logarithm, as long as the random integer used to construct the signature is chosen at random.",

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year = "1998",

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AU - Mitchell, C. J.

AU - Ng, S. L.

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N2 - Shao claims that an ElGamal variant is immune to homomorphism attack. The present work illustrates that contrary to this, the scheme is vulnerable to homomorphism attacks. The success of such an attack appears to be more likely than finding a discrete logarithm, as long as the random integer used to construct the signature is chosen at random.

AB - Shao claims that an ElGamal variant is immune to homomorphism attack. The present work illustrates that contrary to this, the scheme is vulnerable to homomorphism attacks. The success of such an attack appears to be more likely than finding a discrete logarithm, as long as the random integer used to construct the signature is chosen at random.

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DO - 10.1049/el:19981602

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JO - Electronics Letters

JF - Electronics Letters

IS - 24

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Signature scheme based on discrete logarithm without using one-way hash function

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