Multi-party Contract Signing Protocol Based on Certificateless

Suzhen CAO; Fei WANG; Xiaoli LANG; Rui WANG; Xueyan LIU

doi:10.11999/JEIT190166

Volume 41 Issue 11

Nov. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(11): 2691-2698

Suzhen CAO, Fei WANG, Xiaoli LANG, Rui WANG, Xueyan LIU. Multi-party Contract Signing Protocol Based on Certificateless[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2691-2698. doi: 10.11999/JEIT190166

Citation:

Suzhen CAO, Fei WANG, Xiaoli LANG, Rui WANG, Xueyan LIU. Multi-party Contract Signing Protocol Based on Certificateless[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2691-2698. doi: 10.11999/JEIT190166

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Multi-party Contract Signing Protocol Based on Certificateless

doi: 10.11999/JEIT190166

1.
College of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China
2.
College of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China

Funds: The National Natural Science Foundation of China (61662071, 61662069, 61562077)

Received Date: 2019-03-21
Rev Recd Date: 2019-06-25

Available Online: 2019-07-09

Publish Date: 2019-11-01

Abstract

Abstract

Online contract signing is becoming more and more popular in e-commerce. It is not easy to sign a contract between two parties who do not trust each other. Many of these protocols involve the participation of third parties, but they are not advantageous in efficiency and prone to security problems. Currently, contract signing agreements with third-party participation are replaced by block chain technology, but the public verification of block chain challenges the sensitive information of both the signer and the contract to be signed. And most of the agreements are for the signing of contracts between the two parties. With the increase of the number of signatories, the communication cost and complexity of the agreements increase sharply. Combined with the existing protocols, this paper proposes an efficient multi-party contract signing protocol. In the protocol, an efficient aggregation signature scheme based on no certificate is used to improve the signature verification efficiency of the signer under the block chain, and only the temporary key of the signer is disclosed on the block chain to reduce the system overhead. The protocol satisfies the requirements of correctness, security, fairness, privacy and high efficiency.
- Aggregation verifiable signature,
- Privacy protection,
- Blockchain,
- Contract signing

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References(15)

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