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政大機構典藏 > 資訊學院 > 資訊科學系 > 期刊論文 > Item 140.119/79351

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/79351

Title:	Certificateless aggregate signature with efficient verification
Authors:	Tso, Raylin 左瑞麟
Contributors:	資訊科學系
Keywords:	signature;aggregate signature;certificateless cryptography;certificateless aggregate signature;verification;security
Date:	2015-09
Issue Date:	2015-11-05 18:28:48 (UTC+8)
Abstract:	Certificateless public key cryptography (CL-PKC) is a cryptosystem solving the key escrow problem of identity-based cryptography. One of the applications of CL-PKC is certificateless aggregate signature (CLAS) that in practice can be used to efficiently verify concealed data aggregation in wireless sensor networks. CLAS is referred to as an extension of certificateless signature, which in particular performs verification for many signatures efficiently. Therefore, not only plenty of CLAS schemes have been proposed but also the security models of CLAS were introduced in the literature. Recently, some CLAS schemes are extended from specific certificateless signature (CLS) schemes. However, we found that two certificateless signature (CLS) and their corresponding CLAS schemes are not secure. In this paper, we simplify the relation of security definitions of CLS and CLAS. Then, a new CLAS scheme is proposed, which leads to the advantages of both certificateless cryptography and aggregate signature. Moreover, our scheme only depends on constant pairing operations to verify a large number of signatures per time, because pairing is a complicated operation with high cost in computations. Copyright © 2014 John Wiley & Sons, Ltd.
Relation:	Security and Communication Networks,8(13),2232-2243
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1002/sec.1166
DOI:	10.1002/sec.1166
Appears in Collections:	[資訊科學系] 期刊論文

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