本文選題：隱私保護 + 教育直播平臺��； 參考：《浙江工商大學(xué)》2017年碩士論文

【摘要】：隨著我國信息技術(shù)的發(fā)展與科技的進(jìn)步,各種直播平臺層出不窮,目前直播平臺已經(jīng)滲透到我們生活中的方方面面。而除了娛樂直播和商務(wù)類直播持續(xù)火熱之外,教育直播這一新興領(lǐng)域也逐漸受到資本市場和平臺機構(gòu)的青睞,不少直播平臺相繼推出教育直播。教育直播以其互動性強、自主性高和高效性等特點受到廣大受教育人群和在線教育機構(gòu)的熱烈歡迎。雖然教育直播平臺的蓬勃發(fā)展給我們帶來很多便利,同時也給用戶的隱私帶來了很多威脅,這些直播平臺對用戶隱私信息的保護嚴(yán)重缺失,平臺中用戶的隱私信息被竊取后可能會造成嚴(yán)重后果。在此背景下,設(shè)計并實現(xiàn)考慮用戶隱私的視頻直播平臺,無論在理論研究還是在實際應(yīng)用中都具有重要意義。本文首先闡述了考慮用戶隱私的視頻直播平臺的研究背景與意義,并對隱私保護領(lǐng)域的主要研究方向及其國內(nèi)外研究現(xiàn)狀做了詳細(xì)介紹。其次本文結(jié)合視頻直播平臺的設(shè)計,研究了一些密碼學(xué)中的關(guān)鍵技術(shù)。文章闡述了密碼學(xué)中的一些加密算法,并對他們的優(yōu)缺點進(jìn)行分析。文章還研究了 JavaFX瀏覽器框架,它能夠?qū)⒈疚闹杏蒍ava編寫的密碼學(xué)算法邏輯組件的生成結(jié)果嵌入到Web頁面進(jìn)行提交,并將信息處理組件以注入的形式與其交互,適合用于實現(xiàn)本文中的視頻直播平臺。接著針對目前教育類直播平臺普遍存在的隱私泄露問題,本文詳細(xì)闡述了考慮用戶隱私的視頻直播平臺的設(shè)計,針對教育類用戶,將班級設(shè)置為標(biāo)簽并對傳遞在用戶和權(quán)限管理服務(wù)器之間的數(shù)據(jù)進(jìn)行加密保護。本文提出對多標(biāo)簽支持和主動匹配的方案;本文還考慮到用戶之間的關(guān)注關(guān)系會發(fā)生變化的需求,我們提出的權(quán)限撤回方案進(jìn)一步滿足對用戶隱私保護的需求。本文實現(xiàn)了考慮用戶隱私的視頻直播平臺。平臺設(shè)計的核心是基于RSA盲簽名的OPRF算法。整個平臺中對信息所有的加密和解密操作都是在用戶的本地客戶端進(jìn)行的,而平臺權(quán)限管理服務(wù)器對用戶加密后的標(biāo)簽信息會進(jìn)行盲匹配。學(xué)生用戶和教師用戶在發(fā)布和驗證關(guān)注請求時,雙方不需要同步在線,并且所有的加解密操作都是在平臺用戶的客戶端上自動完成的,用戶在平臺上的操作像在其它平臺上的操作一樣簡單方便。最后我們對平臺進(jìn)行分析和實驗測試,并對實驗結(jié)果進(jìn)行仔細(xì)分析。經(jīng)過實驗和分析對比,平臺的安全性和性能完全符合我們的預(yù)期,在滿足安全性的同時,平臺完全符合實際應(yīng)用的需要。
[Abstract]:With the development of information technology and the progress of science and technology in our country, all kinds of live broadcast platforms emerge in endlessly. At present, live broadcast platforms have penetrated into every aspect of our life.In addition to entertainment and business live broadcast continues to be hot, the emerging field of live education is also gradually favored by the capital market and platform organizations, many live broadcast platforms have launched educational live broadcasting.Because of its strong interaction, high autonomy and high efficiency, direct education is warmly welcomed by the masses of educated people and online educational institutions.Although the vigorous development of educational broadcasting platform brings us a lot of convenience, but also brings a lot of threats to the privacy of users, these platforms have a serious lack of protection of users' privacy information.The privacy information of the user in the platform may have serious consequences when it is stolen.In this context, it is of great significance to design and implement a live video platform considering user privacy, both in theoretical research and in practical applications.In this paper, the research background and significance of the video broadcasting platform considering user privacy are introduced, and the main research directions in the field of privacy protection and the current research situation at home and abroad are introduced in detail.Secondly, based on the design of live video platform, some key techniques in cryptography are studied.This paper describes some encryption algorithms in cryptography and analyzes their advantages and disadvantages.This paper also studies the JavaFX browser framework, which can embed the generated result of the cryptographic algorithm logic component written by Java in this paper into the Web page for submission, and interacts with the information processing component in the form of injection.Suitable for the implementation of the video live platform in this paper.Then, aiming at the problem of privacy divulging in the current educational live broadcast platform, this paper elaborates the design of the video broadcast platform considering user privacy, aiming at the educational users.Set the class to label and encrypt the data passed between the user and the rights management server.In this paper, we propose a scheme of multi-label support and active matching, and consider the need of changing the relationship of concern between users, and we propose a scheme to withdraw authority to further satisfy the need of privacy protection.In this paper, a video broadcasting platform considering user privacy is implemented.The core of platform design is OPRF algorithm based on RSA blind signature.All the encryption and decryption operations of the information in the whole platform are carried out in the local client of the user, and the user's encrypted label information will be blindly matched by the platform privilege management server.Students and teachers do not need to synchronize online when issuing and verifying concern requests, and all encryption and decryption operations are done automatically on the client side of the platform user.The user's operation on the platform is as simple and convenient as the operation on other platforms.Finally, we analyze and test the platform, and analyze the experimental results carefully.Through experiment and analysis and comparison, the security and performance of the platform completely meet our expectations, while satisfying the security, the platform completely meets the needs of practical application.
【學(xué)位授予單位】：浙江工商大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP309;TP393.092

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