比特幣的興起，帶起了背後技術區塊鏈的探討與研究，區塊鏈技術在其他領域上有越來越多的應用被開發，如銀行、電子商務、法律、影音媒體以及醫療等行業上。區塊鏈技術具有許多商業價值，本篇論文以生活上的旅宿租房應用結合區塊鏈技術與智能合約的方式進行實作與研究。
本論文實作的目的是開發一個旅宿租屋模式以區塊鏈與智能合約為基底實作出來的應用，並以網頁的形式提供屋主與使用者操作，以響應式設計網頁，讓屋主與使用者也可以透過手機或平板進行操作。在實作上利用以太坊提供的Geth軟體建置私有區塊鏈，利用Solidity IDE進行合約內容的編寫與測試，在合約的編譯與佈署上透過Truffle開發套件進行，使用Node.js的插件Web3進行網頁以及物聯網設備與區塊鏈系統的連接。最後我們與其他應用進行合約成本的比較，來探討本論文實作的可行性。

The rise of Bitcoin has brought about the discussion and research of the technology behind the blockchain. There are more and more applications of blockchain technology being developed in other fields, such as banking, e-commerce, law, audio-visual media, and medical industries. As mentioned above, blockchain technology has many commercial values. This paper studies the implementation of blockchain smart contracts on the application of living accommodation and rental housing.
The purpose of this implementation is to develop an application based on blockchain and smart contracts for the lodging model, and to provide homeowners and users with operations in the form of web pages, and to design web pages in a responsive manner. Homeowners and users can also operate via mobile phones or tablets. In practice, the implementation uses the Geth software provided by Ethereum to build a private blockchain, uses the Solidity IDE to write and test contract content, and uses the Truffle development kit for contract compilation and deployment, and uses the Node.js plug-in Web3 to connect web pages and IoT devices with the blockchain system. Finally, we compare the contract costs with other applications to explore the feasibility of the implementation of this paper.

第一章 緒論　　1
1-1 研究背景　　1
1-2 研究動機與目的　　2
1-3 論文架構　　3
第二章 文獻探討與相關研究　　4
2-1 區塊鏈(BlockChain)　　4
2-1-1區塊鏈網路的構成要素　　4
2-1-2區塊鏈中的加密技術　　8
2-2 以太坊(Ethereum)　　10
2-3 相關應用　　13
第三章 系統架構與設計　　15
3.1 系統架構　　15
3-1-1區塊鏈環境建置　　15
3-1-2系統設計方法　　17
3-1-3身份與合約的建置與管理　　17
3-1-4權限賦予與物聯網設備新增　　19
3-1-5門鎖設備解鎖　　20
3.2 實作合約說明　　21
3-2-1使用者註冊合約(AM)　　21
3-2-2管理合約(MC)　　22
3-2-3權限控制合約(RC)　　25
3.3 運作流程　　29
3.4 實驗環境與配置　　31
第四章 系統實作　　32
4.1 使用者註冊及登入　　32
4.2 管理者頁面　　32
4-2-1管理合約(MC)創建　　33
4-2-2權限控制合約(RC)創建　　34
4-2-3設備身份新增　　35
4-2-4交易訊息檢視　　36
4.3 使用者頁面　　37
4-3-1房間預約　　37
4-3-2預約資訊　　38
4.4 Raspberry Pi 門鎖模擬　　39
4.5 小結　　41
第五章 結論與未來工作　　44
5.1 結論　　44
5.2 未來工作　　45
第六章 參考文獻　　46

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