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2006•Journal of Computational Methods in Sciences and EngineeringRequires access

A comparative study of ElGamal based digital signature algorithms

Ramzi A. Haraty, Abdul-Nasser El-Kassar, Bilal M. Shebaro

Open publisher page 5 citations

Abstract

A powerful and practical public-key and digital signature scheme was produced by ElGamal. ElGamal public-key and digital signature scheme were modified from the domain of natural integers, Z, to the domains of Gaussian integers, Z[i], and polynomials over finite fields, F[x]. We implement the classical and modified ElGamal digital signature scheme to compare and to test their functionality, reliability and security. To test the security of the algorithms we use a famous attack algorithm called Baby-Step-Giant algorithm which works in the domain of natural integers. We enhance the Baby-Step-Giant algorithm to work with the modified ElGamal digital signature algorithms.

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What this paper is about

A powerful and practical public-key and digital signature scheme was produced by ElGamal. ElGamal public-key and digital signature scheme were modified from the domain of natural integers, Z, to the domains of Gaussian integers, Z[i], and polynomials over finite fields, F[x]. We implement the classical and modified ElGamal digital signature scheme to compare and to test their functionality, reliability and security. To test the security of the algorithms we use a famous attack algorithm called Baby-Step-Giant algorithm which works in the domain of natural integers. We enhance the Baby-Step-Giant algorithm to work with the modified ElGamal digital signature algorithms.

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Available abstract

A powerful and practical public-key and digital signature scheme was produced by ElGamal. ElGamal public-key and digital signature scheme were modified from the domain of natural integers, Z, to the domains of Gaussian integers, Z[i], and polynomials over finite fields, F[x]. We implement the classical and modified ElGamal digital signature scheme to compare and to test their functionality, reliability and security. To test the security of the algorithms we use a famous attack algorithm called Baby-Step-Giant algorithm which works in the domain of natural integers. We enhance the Baby-Step-Giant algorithm to work with the modified ElGamal digital signature algorithms.

Key concepts: ElGamal encryption, Digital Signature Algorithm, ElGamal signature scheme, Computer science, Signature (topology), Digital signature, Algorithm, Mathematics

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