| 基于可验证延迟函数的Hyperledger Fabric背书策略优化方案 |
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| 引用本文： | 陈楠,周赵斌,陈志德.基于可验证延迟函数的Hyperledger Fabric背书策略优化方案[J].计算机系统应用,2022,31(12):87-94. |
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| 作者姓名： | 陈楠 周赵斌 陈志德 |
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| 作者单位： | 福建师范大学 计算机与网络空间安全学院, 福州 350007;福建省网络安全与密码技术重点实验室(福建师范大学), 福州 350007 |
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| 基金项目： | 福建省自然科学基金(2020J01171); 国家自然科学基金(61841701) |
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| 摘 要： | 为了解决Hyperledger Fabric使用固定背书节点进行背书而引发的安全问题,提出了一种基于可验证延迟函数的Hyperledger Fabric背书策略优化方案.利用可验证延迟函数不可并行计算以及可高效验证的特点,设计了匿名化、随机化选取背书节点的Fabric交易模型,增强了Fabric交易背书的安全性.通过实验对比优化方案与原始方案,验证了优化方案在增强安全性的同时,在效率上也有一定的提升.
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| 关 键 词： | Hyperledger Fabric 背书策略 可验证延迟函数 交易模型 |
| 收稿时间： | 2022/3/17 0:00:00 |
| 修稿时间： | 2022/4/14 0:00:00 |
Optimization Scheme of Hyperledger Fabric Endorsement Policy Based on Verifiable Delay Function |
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| CHEN Nan,ZHOU Zhao-Bin,CHEN Zhi-De.Optimization Scheme of Hyperledger Fabric Endorsement Policy Based on Verifiable Delay Function[J].Computer Systems& Applications,2022,31(12):87-94. |
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| Authors: | CHEN Nan ZHOU Zhao-Bin CHEN Zhi-De |
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| Affiliation: | College of Computer and Cyberspace Security, Fujian Normal University, Fuzhou 350007, China;Fujian Provincial Key Laboratory of Network Security and Cryptology (Fujian Normal University), Fuzhou 350007, China |
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| Abstract: | To solve the security problem of Hyperledger Fabric caused by the use of fixed endorsement nodes for endorsement, this study proposes an optimization scheme based on a verifiable delay function for the endorsement policy of Hyperledger Fabric. Considering that the verifiable delay function cannot be calculated in parallel but can be efficiently verified, a Fabric transaction model that anonymously and randomly selects endorsement nodes is designed to enhance the security of Fabric transaction endorsement. The experimental comparison between the optimized scheme and the original one verifies that the optimized scheme not only enhances security but also improves efficiency. |
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| Keywords: | Hyperledger Fabric endorsement policy verifiable delay function transaction model |
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