A secure e-auction scheme based on group signatures

Lee, Cheng‐Chi; Ho, Pi-Fang; Hwang, Min‐Shiang

doi:10.1007/s10796-008-9094-3

Cited by 20 publications

(15 citation statements)

References 15 publications

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“…Lee et al proposed a securely sealed-bid auction scheme that uses the group signature scheme with the function of authenticated encryption. It was claimed to achieve the following goals: secrecy of bidding price, anonymity, verifiability, nonrepudiation, and better performance [10]. Cao tried bit commitment and blind signature technology to design an e-auction scheme based on untrusted third parties.…”

Section: Related Studiesmentioning

confidence: 99%

A Blockchain-Based Sealed-Bid e-Auction Scheme with Smart Contract and Zero-Knowledge Proof

Xue

2021

Security and Communication Networks

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e-Auction improves the efficiency of bid transaction. However, the protection of bidders’ privacy, transaction fairness and verifiability, transaction data security, high cost of third-party auction center, and other issues have attracted more attention. According to the transaction process and basic principles of the sealed auction, we explored the problems existing in the current sealed-bid e-auction schemes. Based on the blockchain technology, we proposed a sealed-bid e-auction scheme with smart contract technology, Bulletproofs zero-knowledge proof protocols, and Pedersen commitment algorithm. The proposed scheme constructed an auction mechanism without the third-party auctioneer so as to restrict the behaviors of auction parties for the sake of auction security, reliability, fairness, and privacy protection. Compared with the related sealed e-auction schemes based on blockchain technologies in six metrics, we conducted the experiment to show that the proposed scheme protected the bid information from leakage well and successfully verified the winning bid price and the related bidder by all transaction participants without the third-party auctioneer.

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Section: Related Studiesmentioning

confidence: 99%

A Blockchain-Based Sealed-Bid e-Auction Scheme with Smart Contract and Zero-Knowledge Proof

Xue

2021

Security and Communication Networks

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“…e works in [3][4][5][6] solve the data access control for data sharing in various scenarios and the proposals in [7][8][9][10] focus on the data integrity verification and public auditing. However, as the scale of data and services in the cloud grows, the multiple group data sharing emerges as a promising application for data sharing between users in different groups [11][12][13], such as multiple health study organizations and multiple businesses.…”

Section: Introductionmentioning

confidence: 99%

Blockchain-Based Fine-Grained Data Sharing for Multiple Groups in Internet of Things

Teng

Zhang

Lin

et al. 2021

Security and Communication Networks

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Cloud-based Internet of Things, which is considered as a promising paradigm these days, can provide various applications for our society. However, as massive sensitive and private data in IoT devices are collected and outsourced to cloud for data storage, processing, or sharing for cost saving, the data security has become a bottleneck for its further development. Moreover, in many large-scale IoT systems, multiple group data sharing is practical for users. Thus, how to ensure data security in multiple group data sharing remains an open problem, especially the fine-grained access control and data integrity verification with public auditing. Therefore, in this paper, we propose a blockchain-based fine-grained data sharing scheme for multiple groups in cloud-based IoT systems. In particular, we design a novel multiauthority large universe CP-ABE scheme to guarantee the fine-grained access control and data integrity across multiple groups by integrating group signature into our scheme. Moreover, to ease the need for a trusted third auditor in traditional data public auditing schemes, we introduce blockchain technique to enable a distributed data public auditing. In addition, with the group signature, our scheme also realizes anonymity and traitor tracing. The security analysis and performance evaluation show that our scheme is practical for large-scale IoT systems.

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“…Until now, there are many kinds of signatures proposed to achieve different purposes [1-4, 18, 22, 34]. In 1991, Chaum and Heyst [7] proposed a group signature which is allow individual members to make signatures on behalf of the group and has the following properties [5,6,14,15,19,32]:…”

Section: Introductionmentioning

confidence: 99%