An Efficient and Secure Dynamic Group Signature Scheme

2005 ◽  
Vol 16 (4) ◽  
pp. 609 ◽  
Author(s):  
Ye-Feng HE
Keyword(s):  
Group Signature ◽  
Signature Scheme ◽  
Dynamic Group

scholarly journals An efficient fully dynamic group signature with message dependent opening from lattice

Cybersecurity ◽  
2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Yiru Sun ◽  
Yanyan Liu
Keyword(s):  
Group Size ◽  
Communication Complexity ◽  
Group Signature ◽  
Signature Scheme ◽  
Zero Knowledge ◽  
Dynamic Group ◽  
Logarithmic Relationship ◽  
Better Than

AbstractMessage-dependent opening is one of the solutions to solve the problem of the tracing manager owns excessive power. In this paper, we present a new lattice-based fully dynamic group signature scheme with message-dependent opening by combining an improved version of the fully dynamic group signature scheme proposed by Ling et al and the double encryption paradigm. In addition, we propose an improved underlying zero knowledge protocol, it has a soundness error $\frac {1}{\max (n,p)+1}$ 1 max ( n , p ) + 1 that is better than the Stern-like protocol, which helps to bring down the communication complexity of the protocol and hence the signature scheme. Our scheme constrains the power of group managers by adding an admitter, and the signature size has a logarithmic relationship with the group size.

scholarly journals An efficient full dynamic group signature scheme over ring

Cybersecurity ◽  
2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Yiru Sun ◽  
Yanyan Liu ◽  
Bo Wu
Keyword(s):  
Group Signature ◽  
Signature Scheme ◽  
Dynamic Group

scholarly journals Efficient Dynamic Group Signature Scheme with Verifier Local Revocation and Time-Bound Keys using Lattices

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Abhilash M H ◽  
Amberker B B
Keyword(s):  
Large Fraction ◽  
Group Signature ◽  
Signature Scheme ◽  
Expiry Date ◽  
Signature Schemes ◽  
Significant Saving ◽  
Dynamic Group ◽  
Speed Up ◽  
Verification Process ◽  
Group Member

Revocation is an important feature of group signature schemes. Verifier Local Revocation (VLR) is a popular revocation mechanism which involves only verifiers in the revocation process. In VLR, a revocation list is maintained to store the information about revoked users. The verification cost of VLR based schemes islinearly proportional to the size of recvocation list. In many applications, the size of revocation list grows with time, which makes the verification process expensive. In this paper, we propose a lattice based dynamic group signature using VLR and time bound keys to reduce the size of revocation list to speed up the verification process. In the proposed scheme, an expiration date is fixed for signing key of each group member, and verifiers can find out (at constantcost) if a signature is generated using an expired key. Hence revocation information of members who are revoked before signing key expiry date (premature revocation) are kept in revocation list, and other members are part of natural revocation. This leads to a significant saving on the revocation check by assuming natural revocation accounts for large fraction of the total revocation. This scheme also takes care of non-forgeability of signing key expiry date.

A Dynamic Group Signature Scheme for Blockchain-Based Traceability Bulletin Board

2021 ◽  
pp. 499-511
Author(s):  
Manman Hou ◽  
Kaiyi Zhao ◽  
Ruizhi Sun ◽  
Gang Yuan
Keyword(s):  
Group Signature ◽  
Bulletin Board ◽  
Signature Scheme ◽  
Dynamic Group

A new dynamic group signature scheme

2006 ◽  
Vol 11 (6) ◽  
pp. 1693-1696
Author(s):  
He Yefeng
Keyword(s):  
Group Signature ◽  
Signature Scheme ◽  
Dynamic Group

Short Dynamic Group Signature Scheme Supporting Controllable Linkability

2015 ◽  
Vol 10 (6) ◽  
pp. 1109-1124 ◽  
Author(s):  
Jung Yeon Hwang ◽  
Liqun Chen ◽  
Hyun Sook Cho ◽  
DaeHun Nyang
Keyword(s):  
Group Signature ◽  
Signature Scheme ◽  
Dynamic Group
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