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Group authorization using threshold signatures for medical procedures
2017 9th International Conference on Communication Systems and Networks (COMSNETS), 2017Digitalisation of the health sector is being adopted by many countries to deliver reliable healthcare services. In healthcare organisations, frauds are rampant possessing a serious threat to good governance. To control such malpractices we present the design of a system for group authorization in healthcare organisations.
Preeti Nagar, Divyashikha Sethia
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Improved quantum (t, n) threshold group signature
Chinese Physics B, 2023Threshold signature is an important branch of the digital signature scheme, which can distribute signature rights and avoid the abuse of signature rights. With the continuous development of quantum computation and quantum information, quantum threshold signatures are gradually becoming more popular.
Yaodong Zhang, Feng Liu, Haixin Zuo
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A Group of Threshold Group-Signature Schemes with Privilege Subsets
2006Reference[9] proposed a threshold group-signature scheme in order to solve the problem so called “threshold group-signature scheme with privilege subsets” suggested by Feng Dengguo. We firstly show there exist some insufficiencies and potential hazard in the scheme mentioned above.
Chen Weidong, Feng Dengguo
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On/Off Threshold Group Signature Scheme
2009 International Conference on Networks Security, Wireless Communications and Trusted Computing, 2009On/Off threshold group signature scheme is proposed. Comparing to the existing threshold group signature schemes, the scheme not only can satisfy the properties of threshold group signature, but also has the advantages such as high real-time efficiency, withstanding conspiracy attack etc.
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Efficient democratic group signatures with threshold traceability
Journal of Shanghai Jiaotong University (Science), 2011zbMATH Open Web Interface contents unavailable due to conflicting licenses.
He, Guo-feng +3 more
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Quantum (t, n) threshold group signature based on Bell state
Quantum Information Processing, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huawang Qin +2 more
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Information Processing Letters, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hsu, C.L, Wu, T.S, Wu, T.C
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hsu, C.L, Wu, T.S, Wu, T.C
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First International Conference on Innovative Computing, Information and Control - Volume I (ICICIC'06), 2006
Wang et al proposed generalization of threshold signature and authenticated encryption for group communications (denoted as W-C-L scheme). It is shown here that their schemes are insecure. One is W-C-L scheme cant withstand equation attack that they claimed. The other is W-C-L scheme is not the real threshold shared verification. Recently, an improved
Honglie Zhang, Guoyin Zhang, Jiguo Li
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Wang et al proposed generalization of threshold signature and authenticated encryption for group communications (denoted as W-C-L scheme). It is shown here that their schemes are insecure. One is W-C-L scheme cant withstand equation attack that they claimed. The other is W-C-L scheme is not the real threshold shared verification. Recently, an improved
Honglie Zhang, Guoyin Zhang, Jiguo Li
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A New Threshold Ring Signature for Ad-hoc Group
2007 Second International Conference on Communications and Networking in China, 2007A number of peer to peer (P2P) systems as well as mobile ad-hoc networks (MANETs) fall into the category of ad hoc groups. Their needs for security have been widely recognized. Following this line, some signature schemes had introduced for ad hoc group. On the based of analyzing those scheme, we propose a threshold ring signature from bilinear pairings
Junfang Xiao, Guihua Zeng
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Distributed and dynamic threshold group signature scheme
2008 11th IEEE Singapore International Conference on Communication Systems, 2008A distributed and dynamic threshold group signature scheme without a designated group manager is proposed in this paper. The proposed scheme not only can satisfy the properties of threshold group signature, but also has distributed and dynamic properties, that is, the proposed scheme allows that any t or more group members collaboratively admit ...
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