Elgamal digital signature scheme with integrated CFEA-technique
One of the four security goals is authentication. Authentication is a mechanism to ensure that we are communicating with the intended party. If Alice and Bob want to communicate securely, then the authentication mechanism will be able to ensure that Alice is truly communicating with Bob, and Bob...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
UTM Press
2016
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| Online Access: | https://eprints.ums.edu.my/id/eprint/19475/1/Elgamal%20digital%20signature%20scheme%20with%20integrated%20CFEA.pdf https://eprints.ums.edu.my/id/eprint/19475/7/ELGAMAL%20DIGITAL%20SIGNATURE%20SCHEME%20WITH.pdf https://eprints.ums.edu.my/id/eprint/19475/ https://jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/8972/5324 |
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| Summary: | One of the four security goals is authentication. Authentication is a mechanism to ensure
that we are communicating with the intended party. If Alice and Bob want to
communicate securely, then the authentication mechanism will be able to ensure that
Alice is truly communicating with Bob, and Bob is truly communicating with Alice. This
mechanism can be provided by the cryptography. One of the most established
cryptography schemes is ElGamal cryptosystem. The original version of this cryptosystem is
to provide confidentiality through encryption and decryption procedures. By manipulating
these procedures, the authentication mechanism can be carried out. Thus, ElGamal Digital
Signature Scheme emerges as one of the most popular authentication mechanisms. In
order to provide good level of security, proper parameters must be used in this scheme.
This includes the size of the parameters. Larger parameters will provide a better level of
security. As a consequence, the performance of the scheme becomes an issue in real life
application. In this paper, we proposed the enhancement of the ElGamal Digital Signature
Scheme by integrating the Continued-Fraction-Euclidean-Algorithm (CFEA) technique. This
technique is able to reduce the number of data to be processed in the signing and
verification procedures. By integrating the CFEA-technique into the ElGamal Digital
Signature Scheme, any number of documents can be compressed becomes a pair of
documents. Therefore, the signing and verification procedures can be done in smaller
number of steps. |
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