Blockchain-based two-party fair contract signing scheme

Zhang, Liang; Zhang, Hanlin; Yu, Jia; Xian, Hequn

doi:10.1016/j.ins.2020.05.054

Cited by 30 publications

(42 citation statements)

References 21 publications

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“…In the Ethereum platform, aiming at the problem that the centralized TTP may leak the contract content, Zhang et al [ 46 ] proposed a fair contract signing scheme for both parties based on Ethereum smart contract. In the process of contract signing, automatic smart contract is used instead of the original TTP agreement, which ensures the fairness of signing to a certain extent, however, the signature verification process cannot be accomplished directly through the smart contract.…”

Section: Research On the Application Status Of Smart Contractmentioning

confidence: 99%

A survey of application research based on blockchain smart contract

et al. 2022

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Nowadays, blockchain technology and industry has developed rapidly all over the world, which is inseparable from continuous innovation and improvement on smart contract technology. Therefore, by summarizing the working principle and application research status of blockchain smart contract, this paper analyzes the development and challenges of smart contract. Firstly, we introduce the model and operation principle of blockchain smart contract for the overall architecture, analyze the deployment process of smart contract with Ethereum, Hyperledger Fabric and EOSIO, and make a comparative analysis from the technical level. And taking Byteball, InterValue and IOTA platforms as examples, we introduce the deployment process and application potential for DAG-based blockchain smart contract. Additionally, we also summarize the application research of smart contract for international and Blockchain Oracle, and discuss its innovative application and development trend in the future. Secondly, we introduce the application status of smart contract with Ethereum and Hyperledger Fabric platforms from the aspects of financial transactions, Internet of things, medical applications, and supply chain, and further discuss EOS (enterprise operation system), Blockchain Oracle and other application fields. Furthermore, we introduce the application advantages and challenges to smart contract for industrial Internet from the fields of manufacturing, food industry, industrial Internet of things and industry 4.0. Finally, we discuss the challenges faced by smart contract with technical issues, analyzes the impact on large-scale applications and mining system on the sustainable development of smart contract, and looks forward to the future research direction of blockchain smart contract.

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Section: Research On the Application Status Of Smart Contractmentioning

confidence: 99%

A survey of application research based on blockchain smart contract

et al. 2022

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“…The last scheme analyzed is that of [18]. This scheme uses a verifiable encryption signature to achieve the privacy of the contract.…”

Section: Related Workmentioning

confidence: 99%

A Multi-Party Contract Signing Solution Based on Blockchain

Ferrer-Gomila

Hinarejos

2021

Electronics

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Fair digital signature of contracts and agreements is an essential process in any electronic commerce scenario, and therefore also in data marketplaces, where the relationships and agreements among the different parties (consumers and providers) are more dynamic. In multi-party contract signing, N parties wish to sign a contract in a such a way that either all signatories obtain evidence of the signing or none obtains conflicting evidence regarding the honest signatories; the exchange must be fair. In this paper, we propose a blockchain-based multi-party contract signing protocol. This solution does not require the existence or potential intervention of a trusted third party (TTP), thus avoiding the difficulty of N signatories agreeing upon a TTP. In addition, this proposal meets the necessary requirements: fairness, timeliness, non-repudiation of origin, and non-repudiation of receipt. Furthermore, confidentiality can be easily achieved. To minimize costs associated with the use of blockchain, it should be invoked in the case of exception (analogous to optimistic solutions with a TTP) and by only one of the N signatories. However, when the use of blockchain is required, we show that its cost is within perfectly manageable margins.

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“…Due to the above-mentioned tremendous benefits of cloud computing, designing secure and efficient outsourcing algorithms for various of computation-extensive tasks, such as large-scale linear algebraic operations [3,14], modular exponentiations and modular inverse operations in cryptography [18,27,45,56], large-scale graph operations [54], heavy computations in artificial intelligence (AI) and internet of things (IoT) [28,51,52], has become a popular topic. Out of which, the outsourcing of matrix-related operations is closely related with our work.…”

Section: A Related Workmentioning

confidence: 99%

Securely and Efficiently Computing the Hermite Normal Form of Integer Matrices via Cloud Computing

Wei

Tian

et al. 2020

IEEE Access

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The prevalence of cloud computing greatly promotes the traditional computing paradigm. With the assistance of a cloud, the light-weight device can achieve computation-intensive tasks which may not be done on its own. While, computing the Hermite Normal Form (HNF), which is a standard form of integer matrices, not only is inescapable when solving the linear system of equations over integers, but also has lots of applications in many other fields, such as integer programming and latticebased cryptography. However, the fast blowup phenomenon of intermediate numbers makes the HNF computation time-consuming. In this paper, we initialize the study of the cloud-assisted HNF computation and design an efficient outsourcing algorithm that enables the resource-constrained client to securely delegate this heavy computation to a resource-abundant yet maybe untrusted cloud server. The main idea involved in our algorithm is a novel matrix encryption method based on random permutation, unimodular matrix transformation and triangular matrix transformation, which makes our algorithm protect the client's input/output information with the one-way notion and enable the client to detect the cloud's deception with the optimal probability 1. Besides, rigorous theoretical analysis and extensive experimental evaluation validate the efficiency and the practical performance of our design, and the substantial client-side savings are remarkable as the problem size increases.

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Blockchain-based two-party fair contract signing scheme

Cited by 30 publications

References 21 publications

A survey of application research based on blockchain smart contract

A survey of application research based on blockchain smart contract

A Multi-Party Contract Signing Solution Based on Blockchain

Securely and Efficiently Computing the Hermite Normal Form of Integer Matrices via Cloud Computing

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