基于区块链技术的审计系统的设计与实现_毕业论文.doc

中国农业大学学士学位论文 摘要 PAGE \* MERGEFORMATI 基于区块链技术的审计系统的设计与实现 信息与电气工程学院，电子信息工程（理科试验班） 摘要 区块链技术这项计算机网络技术是最近的研究热点，可以在多个领域里应用。其本质是一个去中心化的账本，具有开放，去信任，匿名，不可篡改，可追溯等特点，完全可以满足审计系统最本质的需求。因此本文提出了一种在云平台上搭建的基于区块链技术的审计系统。按照Chainpoint协议，通过笔者在文中构建的算法对数据进行Hash运算，形成Merkle Tree，并将Merkle Root发送到比特币网络中进行保存。在审计时通过数据Hash值，云平台保存的Merkle Proof以及比特币网络保存的Merkle Root三者共同验证数据的正确性以及完整性，完成审计工作。 关键词：区块链技术，审计系统，Chainpoint协议，Hash运算，Merkle Tree 中国农业大学学士学位论文 Abstract Abstract Block chain technology is a r recent research hotspot of a computer network technology, can be applied in a number of areas. Its essence is a decentralized account book, which has open, remove trust, anonymous, can’t be tampered, traceable and other characteristics. It can fully meet the most essential requirements of the audit system. Therefore, this paper presents an audit system, which is built on the cloud platform and based on the block chain technology. In accordance with the Chainpoint protocol, through the author in the text of the algorithm to build the data Hash operation, the formation of Merkle Tree, and then sent Merkle Root to the Bitcoin network to save. At the time of the audit, the data were evaluated by the data hash, the Merkle Proof saved by the cloud platform, and the Merkle Root, which was saved by the Bitcoin network, to verify the correctness and completeness of the data. Keyword: Block chain technology , Audit system , Chainpoint protocol , Hash operation , Merkle Tree PAGE \* MERGEFORMATIV 中国农业大学学士学位论文 目录 目录 TOC \o 3-3 \h \z \u \t 标题 1,1,标题 2,2 HYPERLINK \l _Toc 摘要 PAGEREF _Toc \h I HYPERLINK \l _Toc Abstract Ⅱ HYPERLINK \l _Toc 目录 Ⅲ HYPERLINK \l _Toc 第一章 前言 PAGEREF _Toc \h 1 HYPERLINK \l _Toc 第二章 基本技术理论和开发环境 PAGEREF _Toc \h 3 HYPERLINK \l _Toc 2.1 数据源 PAGEREF _Toc \h 3 HYPERLINK \l _Toc 2.2 区块链 PAGEREF _Toc \h 3 HYPERLINK \l _Toc 2.2.1 PoW PAGEREF _Toc \h 4 HYPERLINK \l _Toc 2.2.2 PoS PAGEREF _Toc \h 5 HYPERLINK \l _Toc 2.3 Merkle Tree PAGEREF _Toc \h 6 HYPERLINK \l _Toc 2.3.1 Has