A study on efficient group-oriented signature schemes for realistic application environment

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Please use this identifier to cite or link to this item: http://140.128.103.80:8080/handle/310901/21650

Title:	A study on efficient group-oriented signature schemes for realistic application environment
Authors:	Chung, Y.-F., Chen, T.-L., Chen, T.-S., Chen, C.-S.
Contributors:	Department of Electrical Engineering, Tunghai University
Keywords:	Digital signature;Elliptic curve cryptosystem;Group signature;Ring signature;Signcryption;Threshold group signature
Date:	2012
Issue Date:	2013-05-15T09:03:44Z (UTC)
Abstract:	Rapid development of data processing systems has made digital signatures an essential application. A digital signature basically associates a signer with the message. Its important characteristics are easy verification, unforgeability and undeniability. However, conventional digital signature schemes generally consider only single signer situations; this is impractical, because the authorized signatory in the business world is generally composed of signatures of several people. Therefore, to enable co-signatories on a document, several group signature schemes are hereby proposed in this paper, including threshold group signature, anonymous ring signature, and group signature that incorporates ring signature technology. Since the aforementioned signature schemes are all based on Elliptic Curve Cryptosystem (ECC), they have short key size, low computation load, and little bandwidth requirement. Therefore, all the above schemes are considerably efficient. Finally, analyses are carried out to prove that the proposed schemes can withstand signature forgery attack and are signer undeniable, and thus meet the security requirements. ? 2012 ICIC International.
Relation:	International Journal of Innovative Computing, Information and Control 8 (4) , pp. 2713-2727
Appears in Collections:	[Department of Electrical Engineering ] Periodical Articles

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