Results 241 to 250 of about 10,619,315 (293)

An efficient threshold group signature scheme

Applied Mathematics and Computation, 2005
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Yuan-Lung Yu, Tzer-Shyong Chen
openaire   +2 more sources

A threshold group signature scheme suitable for the Internet of Things

Concurrency and Computation: Practice and Experience, 2021
SummaryWith the development of information technology, the Internet of Things terminals are vulnerable to threats such as eavesdropping, tampering, and counterfeiting. The application of threshold group signature technology can effectively ensure the security of the system in applications such as battlefield intelligent decision‐making, connected ...
Bei Gong, Xinyi Zhang, Yang Cao 0022, Zheng Li 0033, Jia Yang, Wei Wang   +5 more
openaire   +2 more sources

Threshold Signatures in Dynamic Groups

Future Generation Communication and Networking (FGCN 2007), 2007
In this paper we present the efficient solution for the dynamical groups with the variable threshold bound. In fact we consider the more general situation, when there is a family of dynamical groups instead of one group. We were able to handle this more general situation by joining the secret sharing idea together with the certification system device ...
Jacek Pomykala, Tomasz Warchol
openaire   +1 more source

Short Threshold Dynamic Group Signatures

2020
Traditional group signatures feature a single issuer who can add users to the group of signers and a single opening authority who can reveal the identity of the group member who computed a signature. Interestingly, despite being designed for privacy-preserving applications, they require strong trust in these central authorities who constitute single ...
Camenisch, Jan, Drijvers, Manu, Lehmann, Anja, Neven, Gregory, Towa, Patrick   +4 more
openaire   +2 more sources

Cryptanalysis and improvement of a (t, n) threshold group signature scheme

Quantum Information Processing, 2022
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Ren Guo, Xiaogang Cheng
openaire   +1 more source

Quantum threshold group signature

Science in China Series G: Physics, Mechanics and Astronomy, 2008
In most situations, the signer is generally a single person. However, when the message is written on behalf of an organization, a valid message may require the approval or consent of several persons. Threshold signature is a solution to this problem.
YuGuang Yang, QiaoYan Wen
openaire   +1 more source

Democratic group signatures with threshold traceability

Journal of Shanghai Jiaotong University (Science), 2009
This paper presents a concrete democratic group signature scheme which holds (t, n)-threshold traceability. In the scheme, the capability of tracing the actual signer is distributed among n group members. It gives a valid democratic group signature such that any subset with more than t members can jointly reconstruct a secret and reveal the identity of
Xiang-xue Li, Hai-feng Qian, Jian-hua Li
openaire   +1 more source

A secure threshold group signature scheme

Journal of Electronics (China), 2003
The threshold group signature is an important kind of signature. So far, many threshold group signature schemes have been proposed, but most of them suffer from conspiracy attack and are insecure. In this paper, a secure threshold group signature scheme is proposed.
Xiaoming Wang, Fangwei Fu
openaire   +1 more source

Identity Based Threshold Ring Signature [PDF]

Lecture Notes in Computer Science, 2005
In threshold ring signature schemes, any group of t entities spontaneously conscript arbitrarily n - t entities to generate a publicly verifiable t-out-of-n signature on behalf of the whole group, yet the actual signers remain anonymous.
Sherman S M Chow, Lucas C K Hui
exaly   +3 more sources

Improvement of Threshold Group Signature Scheme

2011 International Symposium on Computer Science and Society, 2011
A (t,n) threshold group signature scheme allows a singer to determine a (t,n) threshold strategy and only t or more signers of the group can sign messages on behalf of the group. Recently, Li et al. proposed a new threshold group signature scheme based on discrete logarithm problem, which is not only threshold-signing but also threshold-verifying ...
Tong Lu, Baoyuan Kang
openaire   +1 more source