Results 101 to 110 of about 93,479 (169)

Cryptanalysis of Several Linkable Ring Signature Schemes

2010 Second International Conference on Networks Security, Wireless Communications and Trusted Computing, 2010
The notion of linkable ring signature, introduced by Liu et al. in 2004, provides signer anonymity and spontaneity, but at the same time, allows anyone to determine whether two signatures have been issued by the same group member (linkability).In 2006,Liu-Wong capture stronger notions of signer anonymity and linkability than the original ones proposed ...
Huaqun Wang, Shuping Zhao
openaire   +1 more source

Local Energy Trading Platform Based on Privacy-Preserving Blockchain with Linkable Ring Signature

International Conference on Data Intelligence and Security, 2022
The growing renewable energy source technologies and distributed communication infrastructure call for local energy trading (LET) platform in smart grid to assist prosumers and consumers to trade energy locally and efficiently.
Z. L. Jiang, Yijian Pan, Maoshun Fan, Lin Yao, Yang Liu, Yulin Wu, S. Yiu, Xuan Wang, Jun-bin Fang   +8 more
semanticscholar   +1 more source

Short Linkable Ring Signatures Revisited

2006
Ring signature is a group-oriented signature in which the signer can spontaneously form a group and generate a signature such that the verifier is convinced the signature was generated by one member of the group and yet does not know who actually signed.
Man Ho Au, Sherman S. M. Chow, Willy Susilo, Patrick P. Tsang   +3 more
openaire   +1 more source

Certificate Based (Linkable) Ring Signature

2007
In this paper, we propose a new notion called Certificate Based Ring Signature (CBRS) that follows the idea of Certificate Based Encryption (CBE) presented by Gentry in EuroCrypt 2003. It preserves the advantages of CBE such as implicit certificate and no private key escrow.
Au, Man Ho Allen, Liu, Joseph K., Susilo, Willy, Yuen, Tsz Hon   +3 more
openaire   +2 more sources

On the Security of a Lattice-based Linkable Ring Signature for Cloud-Assisted EMRs

International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery
Recent advances in lattice-based cryptography have seen Chen et al. introduce a linkable ring signature scheme (LLRS) for cloud-assisted electronic medical record systems, claiming dual security properties of linkability and unforgeability (IEEE Trans ...
Jianhong Zhang, Lixia Jiang, Chenghe Dong   +2 more
semanticscholar   +1 more source

Ring Signature with Designated Linkability

2006
Ring signatures enable a user to sign a message so that a ring of possible signers is identified, without revealing exactly which member of that ring actually generated the signature. This concept has been used to construct new cryptographic applications, such as designated signatures, concurrent signatures, etc.
Joseph K. Liu, Willy Susilo, Duncan S. Wong   +2 more
openaire   +1 more source

FS-LLRS: Lattice-Based Linkable Ring Signature With Forward Security for Cloud-Assisted Electronic Medical Records

IEEE Transactions on Information Forensics and Security
Ring signatures have been extensively researched for Cloud-assisted Electronic Medical Records (EMRs) sharing, aiming to address the challenge of “medical information silos” while safeguarding the privacy of patients’ personal information and the ...
Xue Chen, Shiyuan Xu, Shang Gao, Yu Guo, S. Yiu, Bin Xiao   +5 more
semanticscholar   +1 more source

Separable Linkable Threshold Ring Signatures

2004
A ring signature scheme is a group signature scheme with no group manager to setup a group or revoke a signer. A linkable ring signature, introduced by Liu, et al. [20], additionally allows anyone to determine if two ring signatures are signed by the same group member (a.k.a. they are linked). In this paper, we present the first separable linkable ring
Patrick P. Tsang, Victor K. Wei, Tony K. Chan, Man Ho Au, Joseph K. Liu, Duncan S. Wong   +5 more
openaire   +1 more source

On Tightly-Secure (Linkable) Ring Signatures

2021
Tight security is increasingly gaining importance in real-world cryptography, as it allows to deploy the cryptosystem without compensating the security loss of a reduction with larger parameters. In this paper, we point out the difficulties of creating tightly-secure ring signatures (RS) and linkable ring signatures (LRS), then present solutions to ...
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Many-Time Linkable Ring Signatures

Linkable ring signatures (Liu et al., ACISP’04) is a ring signature scheme with a linking mechanism for detecting signatures from the same signer. This functionality has found many practical applications in electronic voting, cryptocurrencies, and whistleblowing systems. However, existing linkable ring signature schemes impose a fundamental limitation:
Nam Tran, Khoa Nguyen, Dongxi Liu, Josef Pieprzyk, Willy Susilo   +4 more
openaire   +1 more source