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dc.contributor.advisor | 劉志文(Chih-Wen Liu) | |
dc.contributor.author | Yu-Tse Lee | en |
dc.contributor.author | 李育澤 | zh_TW |
dc.date.accessioned | 2021-06-17T08:30:39Z | - |
dc.date.available | 2024-08-18 | |
dc.date.copyright | 2019-08-18 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-12 | |
dc.identifier.citation | [1] E. S. Cahn, ”Time Dollars: The New Currency That Enables Americans to Turn Their Hidden Resource-Time-Into Personal Security and Community Renewal,”1992, Pennsylvania: Rodale Press.
[2] E. S. Cahn, ”No More Throw-Away People: The Co-Production Imperative,” 2000 [3] What is the CES? (2019, May 16). Retrieved from https://www.communityexchange.org/home/what-is-the-ces/ [4] S. Nakamoto, “Bitcoin: a peer-to-peer electronic cash system”, [Online]. Available: https://bitcoin.org/bitcoin.pdf. [5] V. Buterin, ”Ethereum: a next generation smart contract and decentralized application platform,” [Online]. Available: https://github.com/ethereum/wiki/wiki/White-Paper. [6] E. Androulaki, A. Barger, V. Bortnikov, C. Cachin, K. Christidis, A. D. Caro et al. ”Hyperledger fabric: A distributed operating system for permissioned blockchains,”Proceedings of the 13th ACM SIGOPS European Conference on Computer Systems, 2018 [7] I. Ashlagi, A. Nikzad, P. Strack, ”Matching in Dynamic Imbalanced Markets,”arXiv:1809.06824v1[econ.TH], Sep. 2018 [8] M. Akbarpour, S. Li, S. O. Gharan, ”Thickness and Information in Dynamic Matching Markets,”arXiv:1402.3643,Feb. 2014 [9] M. Baccara, S. Lee, and L. Yariv, ”Optimal dynamic matching,” Available at SSRN2641670, 2015. [10] W. J. Lai, Y. C. Hsieh, C. W. Hsieh, J. L. Wu, ”DATE: A Decentralized, Anonymous, and Transparent E-voting System,” Proceedings of 2018 1st IEEE International Conference on Hot Information-Centric Networking, 2018, pp.24-29. [11] C. K. Adiputra, R. Hjort and H. Sato, ”A Proposal of Blockchain-Based Electronic Voting System,” 2018 Second World Conference on Smart Trends in Systems, Security and Sustainability (WorldS4), London, 2018, pp. 22-27. [12] F. Þ. Hjálmarsson, G. K. Hreiðarsson, M. Hamdaqa and G. Hjálmtýsson, ”Blockchain-Based E-Voting System,” 2018 IEEE 11th International Conference on Cloud Computing (CLOUD), San Francisco, CA, 2018, pp. 983-986. [13] S. Bistarelli, et al. ”An end-to-end voting-system based on bitcoin.” Proceedings of the Symposium on Applied Computing. ACM, 2017 [14] Rivest, R.; Shamir, A.; Adleman, L., ”A Method for Obtaining Digital Signatures and Public-Key Cryptosystems”, Communications of the ACM., 1978, pp. 120–126 [15] Paillier, Pascal, ”Public-Key Cryptosystems Based on Composite Degree Residuosity Classes”, Eurocrypt, 1999, pp. 223–238 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/74340 | - |
dc.description.abstract | 本論文建構了基於區塊鏈技術的時間銀行系統,採用了Hyperledger Fabric 這個認許制區塊鏈鏈架構,過去在時間銀行的實現方面都還是採用人工的方式來紀錄每個人提供的服務,並且由人工來處理服務配對的工作,不但非常的耗時耗力並且缺乏安全性,本論文提出的時間銀行系統,能讓所有提供的服務都能存在區塊鏈上,並且能夠直接由智能合約來完成配對工作,除此之外,採用區塊鏈作為時間銀行的架構也方便進行時間幣的交易,我們同時也設計了一個在服務交易後的評分系統,使服務提供者或受取者更有意願提高服務品質亦或以更好的態度接受服務,促進整個系統的良性發展。 | zh_TW |
dc.description.abstract | This thesis designs and realizes a Blockchain-based Time Bank system on the basis of Hyperledger Fabric framework which is one of the permissioned blockchain networks. All of the services provided by existing Time Bank systems were recorded and conducted manually in the past. Also, jobs for matching these services were also managed by people. This way of running
Time Bank costs lots of time and human resources and lacks security.This thesis proposes a Time Bank system enabling all the services being executed and recorded on the blockchain. The matching tasks can directly be done through autonomous smart contracts. In addition, building a Time Bank system on blockchain benefits the transaction of”Time Credit”which plays the role of digital currencies on the system. Our Time Bank also retains a grading system allowing its members to give each other a grade for reflecting their degree of satisfaction about the results provided the system. This grading system can incentivize the members to provide a better quality of service and adopt a nicer attitude for receiving a service, which may positively endorse the development of a worldwide Time Bank system. | en |
dc.description.provenance | Made available in DSpace on 2021-06-17T08:30:39Z (GMT). No. of bitstreams: 1 ntu-108-R05921105-1.pdf: 4193008 bytes, checksum: 271c9575c72b239d85f7aeda1d035a58 (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 口試委員會審定ii
誌謝iii 摘要iv Abstract v 1 Introduction 1 2 Background and Related Work 4 2.1 Blockchain Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Hyperledger Fabric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Real World Time Bank based on blockchain . . . . . . . . . . . . . . . . 9 2.3.1 Chronobank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.2 Seva Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 System Overview 10 3.1 Application Scenario Overview . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 System Architecture Overview . . . . . . . . . . . . . . . . . . . . . . . 11 3.3 Specification of Channel Structure . . . . . . . . . . . . . . . . . . . . . 13 3.4 Basic Assumptions about our Time Bank System . . . . . . . . . . . . . 13 4 The Proposed Time Bank System 15 4.1 System Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 4.2 Phase 1: Service Posting and Matching . . . . . . . . . . . . . . . . . . 16 4.2.1 Application Scenarios of Phase 1 . . . . . . . . . . . . . . . . . 16 4.2.2 Information Flow in Phase 1 . . . . . . . . . . . . . . . . . . . . 17 4.2.3 Enrollment Processes . . . . . . . . . . . . . . . . . . . . . . . . 17 4.2.4 Service Posting . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.2.5 Service Matching . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.2.6 The Cross-Channel Chaincode-Interaction’s Constraint . . . . . 21 4.3 Phase 2: Token Transferring . . . . . . . . . . . . . . . . . . . . . . . . 22 4.3.1 Application Scenarios of Phase 2 . . . . . . . . . . . . . . . . . 22 4.3.2 The Detailed Information Flow in Phase 2 . . . . . . . . . . . . . 23 4.3.3 Token Transferring . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.3.4 Reward Function . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.4 Phase 3: Grading System . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.4.1 Scenario of Phase 3 . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.4.2 Introduction to our Grading System . . . . . . . . . . . . . . . . 26 4.4.3 Related Work for Data Hiding on blockchain . . . . . . . . . . . 27 4.4.4 The Detailed Information Flow in Phase 3 . . . . . . . . . . . . . 29 4.4.5 Grade Submission and Average Grade Calculation . . . . . . . . 29 4.4.6 Cryptographic Encryption Scheme . . . . . . . . . . . . . . . . . 32 5 Experimental Results 36 5.1 Environmental Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 5.2 Operation in Phase One . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 5.3 Operations in Phase Two . . . . . . . . . . . . . . . . . . . . . . . . . . 39 5.4 Operations in Phase Three . . . . . . . . . . . . . . . . . . . . . . . . . 40 6 Discussion 43 7 Conclusion and Future Work 45 References 47 | |
dc.language.iso | en | |
dc.title | 基於Hyperledger Fabric 區塊鏈技術框架的時間銀行系統設計 | zh_TW |
dc.title | A Time Bank System Design on the Basis of Hyperledger
Fabric Framework | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.coadvisor | 吳家麟(Ja-Ling Wu) | |
dc.contributor.oralexamcommittee | 許永真(Yung-Jen Hsu),傅立成(Li-Chen Fu) | |
dc.subject.keyword | 區塊鏈,超級帳本,時間銀行,服務,密碼學, | zh_TW |
dc.subject.keyword | Blockchain,Hyperledger Fabric,Time Bank,Service,Cryptographic, | en |
dc.relation.page | 48 | |
dc.identifier.doi | 10.6342/NTU201902677 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2019-08-12 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
Appears in Collections: | 電機工程學系 |
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ntu-108-1.pdf Restricted Access | 4.09 MB | Adobe PDF |
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