【摘要】：在全球經(jīng)濟(jì)化浪潮下,國(guó)際競(jìng)爭(zhēng)日益激烈�？萍紝�(shí)力成為一個(gè)國(guó)家的發(fā)展重點(diǎn)。這就導(dǎo)致?lián)碛袆?chuàng)新意識(shí)和創(chuàng)新能力的高學(xué)歷人才備受關(guān)注。一份高學(xué)位文憑能夠帶來(lái)的利益可想而知,以至于國(guó)內(nèi)外頻頻出現(xiàn)學(xué)位造假的現(xiàn)象。隨著全國(guó)各大高校的招生規(guī)模的擴(kuò)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(xué)位信息的查詢驗(yàn)證難度上升。目前,我國(guó)實(shí)行統(tǒng)一的電子注冊(cè)機(jī)制,由"學(xué)信網(wǎng)"來(lái)負(fù)責(zé)運(yùn)行和維護(hù)。但是學(xué)位和學(xué)歷造假的現(xiàn)象依舊出現(xiàn)。隨著新興技術(shù)"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(guān)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(shè)計(jì)了一種基于區(qū)塊鏈技術(shù)的可信學(xué)位查詢系統(tǒng),并對(duì)其中的關(guān)鍵技術(shù)進(jìn)行設(shè)計(jì)和實(shí)現(xiàn)。本文首先參考安全穩(wěn)定運(yùn)行的比特幣交易系統(tǒng)設(shè)計(jì)系統(tǒng)底層的P2P網(wǎng)絡(luò);然后根據(jù)實(shí)際環(huán)境對(duì)已有共識(shí)機(jī)制進(jìn)行修改,使其滿足學(xué)位發(fā)布環(huán)境的特定應(yīng)用需求;接著設(shè)計(jì)了系統(tǒng)中的交易和區(qū)塊等數(shù)據(jù)的結(jié)構(gòu);根據(jù)相關(guān)實(shí)際規(guī)定,提出了一個(gè)有益于共享的學(xué)位數(shù)據(jù)表示規(guī)范;最后根據(jù)REST原則,設(shè)計(jì)了一個(gè)RESTful學(xué)位查詢驗(yàn)證接口,以提供更好的可拓展性。本文利用Python語(yǔ)言實(shí)現(xiàn)了系統(tǒng)中的關(guān)鍵技術(shù),利用實(shí)驗(yàn)室服務(wù)器代替實(shí)際節(jié)點(diǎn)搭建了一個(gè)模擬的區(qū)塊鏈網(wǎng)絡(luò)。接著在本文搭建的模擬區(qū)塊鏈網(wǎng)絡(luò)中對(duì)系統(tǒng)進(jìn)行測(cè)試運(yùn)行。運(yùn)行結(jié)果表明底層的區(qū)塊鏈層能夠初步完成設(shè)計(jì)的功能;在上層界面的操作也能與底層、與用戶進(jìn)行交互,完成學(xué)生注冊(cè),學(xué)位發(fā)布以及學(xué)位召回操作。本文設(shè)計(jì)實(shí)現(xiàn)的學(xué)位數(shù)據(jù)查詢接口能夠?qū)弦?guī)的學(xué)位查詢請(qǐng)求進(jìn)行響應(yīng)并取得區(qū)塊鏈上相應(yīng)的學(xué)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(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP311.13

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