具公正性抽獎機制與隱私防護之問卷平台;A Blockchain-based Survey Platform with Fair Lottery Mechanisms and Privacy Protection

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题名:	具公正性抽獎機制與隱私防護之問卷平台;A Blockchain-based Survey Platform with Fair Lottery Mechanisms and Privacy Protection
作者:	徐翊婷;Hsu, I-Ting
贡献者:	資訊管理學系在職專班
关键词:	區塊鏈;ERC20;智慧合約;IPFS;FIDO;非對稱式加密
日期:	2023-06-14
上传时间:	2023-10-04 16:07:12 (UTC+8)
出版者:	國立中央大學
摘要:	問卷調查是收集意見的一種重要方式，用於了解各種觀點與感受。也因為科技進步，線上問卷的產生，讓資料搜集更方便快速，還可以在短時間內獲得大量樣本。而目前線上問卷存在一些挑戰。例如，填答者擔心個資被儲存在第三方平台會被洩漏或被不當利用，導致面對敏感問題時會猶豫不決，影響參與意願。另外，調查結果可能為了迎合特定目的而遭篡改或操控，影響可靠性與準確性。同時部分問卷發放者可能會為了吸引更多填答者，會利用抽獎活動作為獎勵措施，但這些活動在很多情況下是不公開、透明的，甚至可能根本沒有真正的抽獎環節。面對這樣的挑戰，我們開始關注區塊鏈技術。區塊鏈是一種分散式、去中心化的技術，具有安全、透明及可追溯的特性。所以認為將區塊鏈技術運用在問卷調查系統上，有望解決傳統問卷調查所面臨的困難，提升問卷調查的品質和效果。基於以上原因，本篇論文將開發出一個基於區塊鏈技術的問卷平台，並使用 ERC20 代幣作為交易的媒介，該平台將透過智慧合約實現自動分配獎勵、自動抽獎等功能，並利用非對稱加密技術保護用戶隱私和問卷答案的機密性。除此之外，還使用了 IPFS 技術來儲存大量資料以降低將資料儲存於區塊鏈中的高昂成本，並透過 FIDO 技術實現無密碼登入的功能。 ;Survey research is a significant way for gathering opinions to understand various perspectives and feelings. Due to the progress of technology, online survey makes search data easier and more convenient and shorten time to acquire great quantity of samples. However, online survey faces some challenges nowadays, for instance, participants would hesitate answering sensitive questions if they worry about private information being leaked or used inappropriately. In addition, survey result could be revised or manipulated for catering specific purpose and influence reliability and accuracy. Moreover, distributors may use raffle as award to attract more participants, yet these activities may not be public or transparent under certain conditions or even have no real draw. To deal with such challenges, we start focusing on Blockchain, which is a distributed and decentralized technology with safe, transparent and traceable features. So the application of Blockchain technology on questionnaire survey system is predictably available to resolve the difficulty on traditional survey and elevate its quality and effect. Based on above reason, this paper will develop a survey platform in view of Blockchain technology with ERC20 token as the intermedium of transaction. Through intelligent contract, this platform will realize functions such as award distribution and raffle to be executed automatically, and protect participants′ privacy and questionnaires′ confidentiality by asymmetric encryption technology. On the other hand, the platform also equipped with technologies like IPFS to save quantum data for reducing expensive cost on saving it within Blockchain, and FIDO to realize password-unnecessary login function.
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