【摘要】：在全球經(jīng)濟化浪潮下,國際競爭日益激烈。科技實力成為一個國家的發(fā)展重點。這就導致?lián)碛袆?chuàng)新意識和創(chuàng)新能力的高學歷人才備受關注。一份高學位文憑能夠帶來的利益可想而知,以至于國內外頻頻出現(xiàn)學位造假的現(xiàn)象。隨著全國各大高校的招生規(guī)模的擴大,高校畢業(yè)生的數(shù)量急劇上升。龐大的畢業(yè)生數(shù)量也使得學位信息的查詢驗證難度上升。目前,我國實行統(tǒng)一的電子注冊機制,由"學信網(wǎng)"來負責運行和維護。但是學位和學歷造假的現(xiàn)象依舊出現(xiàn)。隨著新興技術"區(qū)塊鏈"的出現(xiàn),其具有的去中心化,去信任化特性頗受關注。本文利用區(qū)塊鏈在數(shù)據(jù)安全方面的優(yōu)異表現(xiàn)設計了一種基于區(qū)塊鏈技術的可信學位查詢系統(tǒng),并對其中的關鍵技術進行設計和實現(xiàn)。本文首先參考安全穩(wěn)定運行的比特幣交易系統(tǒng)設計系統(tǒng)底層的P2P網(wǎng)絡;然后根據(jù)實際環(huán)境對已有共識機制進行修改,使其滿足學位發(fā)布環(huán)境的特定應用需求;接著設計了系統(tǒng)中的交易和區(qū)塊等數(shù)據(jù)的結構;根據(jù)相關實際規(guī)定,提出了一個有益于共享的學位數(shù)據(jù)表示規(guī)范;最后根據(jù)REST原則,設計了一個RESTful學位查詢驗證接口,以提供更好的可拓展性。本文利用Python語言實現(xiàn)了系統(tǒng)中的關鍵技術,利用實驗室服務器代替實際節(jié)點搭建了一個模擬的區(qū)塊鏈網(wǎng)絡。接著在本文搭建的模擬區(qū)塊鏈網(wǎng)絡中對系統(tǒng)進行測試運行。運行結果表明底層的區(qū)塊鏈層能夠初步完成設計的功能;在上層界面的操作也能與底層、與用戶進行交互,完成學生注冊,學位發(fā)布以及學位召回操作。本文設計實現(xiàn)的學位數(shù)據(jù)查詢接口能夠對合規(guī)的學位查詢請求進行響應并取得區(qū)塊鏈上相應的學位數(shù)據(jù)。
[Abstract]:Under the tide of global economy, the international competition is increasingly fierce. Scientific and technological strength has become the focus of a country's development. This leads to the awareness of innovation and innovative ability of high-educated talents have been concerned. A high-degree diploma can bring benefits can be imagined, so that the phenomenon of frequent degree fraud at home and abroad. With the expansion of the enrollment of universities in China, the number of college graduates has risen sharply. The large number of graduates also makes it more difficult to check and verify degree information. At present, our country implements the unified electronic registration mechanism, which is operated and maintained by Xuexin Network. But the fake degrees and academic qualifications still appear. With the emergence of emerging technology, block chain has the characteristics of decentralization and distrust. In this paper, a trusted degree query system based on block chain technology is designed based on the excellent performance of block chain in data security, and the key technologies are designed and implemented. In this paper, we first refer to the secure and stable Bitcoin trading system to design the P2P network at the bottom of the system, and then modify the existing consensus mechanism according to the actual environment to make it meet the specific application requirements of the degree publishing environment. Secondly, the paper designs the structure of transaction and block data in the system, and puts forward a specification of degree data representation which is beneficial to the sharing according to the relevant practical regulations. Finally, according to REST principle, a RESTful degree query verification interface is designed to provide better scalability. In this paper, the key technology of the system is realized by using Python language, and a simulated block chain network is built by using the laboratory server instead of the actual node. Then the system is tested and run in the simulated block chain network built in this paper. The running results show that the bottom layer of the block chain layer can perform the function of the design initially, and the operation of the upper interface can also interact with the bottom layer, and complete the student registration, degree release and degree recall operation. The degree data query interface designed in this paper can respond to the compliance degree query request and obtain the corresponding degree data on the block chain.
【學位授予單位】：大連海事大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP311.13

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