【摘要】：“無所不在的計(jì)算“是21世紀(jì)網(wǎng)絡(luò)信息技術(shù)發(fā)展的趨勢,移動(dòng)互聯(lián)網(wǎng)是該領(lǐng)域最具影響力的技術(shù)之一。隨著移動(dòng)互聯(lián)網(wǎng)用戶的日益增長,移動(dòng)互聯(lián)網(wǎng)的安全也受到越來越多的重視。QR碼是二維碼的一種,其作為移動(dòng)互聯(lián)網(wǎng)信息的傳播載體,有著十分廣泛的應(yīng)用:從網(wǎng)頁鏈接、身份信息等內(nèi)容的傳遞到移動(dòng)終端認(rèn)證登錄都有著QR碼的身影。對(duì)于QR碼而言,移動(dòng)互聯(lián)網(wǎng)開放式的傳播環(huán)境會(huì)對(duì)其產(chǎn)生諸多威脅,QR碼攜帶的敏感信息存在泄漏或被竊取的風(fēng)險(xiǎn)。因此,必須對(duì)QR碼的傳播安全進(jìn)行保護(hù);另外,對(duì)移動(dòng)互聯(lián)網(wǎng)中的各種服務(wù)來說,身份認(rèn)證服務(wù)的安全性是最基本的,現(xiàn)有認(rèn)證技術(shù)采用的較多方式是靜態(tài)口令技術(shù),這種方式存在一定的安全隱患,容易被盜取、撞庫、猜測和窮舉攻擊。所以,設(shè)計(jì)一種較為安全的移動(dòng)終端身份認(rèn)證方案顯得至關(guān)重要。論文以QR碼作為研究對(duì)象入手,針對(duì)QR碼在移動(dòng)互聯(lián)網(wǎng)中的傳播安全及智能終端使用QR碼進(jìn)行認(rèn)證登錄的安全兩個(gè)問題進(jìn)行了研究分析。首先,分析總結(jié)了當(dāng)前QR碼傳播過程中存在的一些安全問題,為避免現(xiàn)有安全問題所帶來的威脅,提出了一種基于Z-映射的QR碼加密機(jī)制,該機(jī)制利用混沌加密算法對(duì)QR碼圖像進(jìn)行加密,從而保證QR碼攜帶內(nèi)容的安全性。通過實(shí)驗(yàn)驗(yàn)證和理論分析,該機(jī)制不僅可以有效保證QR碼的傳播安全,而且具有較高的可靠性和實(shí)用性。其次,研究分析了現(xiàn)有的移動(dòng)終端身份認(rèn)證技術(shù)和方案,總結(jié)了其中存在的一些問題;有別于常用的靜態(tài)口令登錄方式,提出了一種基于QR碼的移動(dòng)互聯(lián)網(wǎng)智能終端身份認(rèn)證方案,該方案綜合了QR碼、混沌加密、時(shí)間戳和雙向認(rèn)證等方式,增強(qiáng)了用戶身份認(rèn)證過程中信息的安全性。實(shí)驗(yàn)結(jié)果表明該方案有著較強(qiáng)的實(shí)用性。論文的研究工作表明,QR碼加密機(jī)制能有效保護(hù)QR碼所攜帶的信息內(nèi)容,論文所設(shè)計(jì)的基于QR碼的移動(dòng)互聯(lián)網(wǎng)智能終端身份認(rèn)證方案具有較強(qiáng)的安全性和實(shí)用性。論文重點(diǎn)研究內(nèi)容互相遞進(jìn)、補(bǔ)充,對(duì)保護(hù)移動(dòng)互聯(lián)網(wǎng)環(huán)境下智能終端的安全有一定的參考價(jià)值。
[Abstract]:Ubiquitous computing is the trend of the development of network information technology in the 21st century. Mobile Internet is one of the most influential technologies in this field. With the increasing of mobile Internet users, the security of mobile Internet is paid more and more attention to. QR code is a kind of QR code. As a carrier of mobile Internet information, it has a very wide application: link from web page. Identity information and other content to the mobile terminal authentication login have QR code figure. For QR codes, the open communication environment of mobile Internet will cause many threats to QR codes. The sensitive information carried by QR codes is at risk of being leaked or stolen. Therefore, the transmission security of QR code must be protected. In addition, the security of identity authentication service is the most basic for all kinds of services in the mobile Internet. There are some security risks in this way, easy to be stolen, hit the storehouse, guess and exhaustive attack. Therefore, it is very important to design a more secure mobile terminal authentication scheme. In this paper, QR code is taken as the research object, and two problems about the transmission security of QR code in mobile Internet and the security of authentication and login using QR code in intelligent terminal are studied and analyzed. Firstly, some security problems in the process of QR code propagation are analyzed and summarized. In order to avoid the threat brought by the existing security problems, a QR code encryption mechanism based on Z-mapping is proposed. This mechanism uses chaotic encryption algorithm to encrypt QR code image, so as to ensure the security of QR code carrying content. Through experimental verification and theoretical analysis, this mechanism can not only effectively guarantee the propagation security of QR code, but also has high reliability and practicability. Secondly, the existing mobile terminal identity authentication technology and scheme are studied and analyzed, and some problems are summarized, which are different from the usual static password login mode. A mobile internet intelligent terminal identity authentication scheme based on QR code is proposed. The scheme combines QR code, chaotic encryption, time stamp and bidirectional authentication to enhance the security of information in the process of user identity authentication. The experimental results show that the scheme has strong practicability. The research work of this paper shows that the encryption mechanism of QR code can effectively protect the information content carried by QR code. The scheme of mobile Internet intelligent terminal identity authentication based on QR code designed in this paper has strong security and practicability. This paper focuses on the content of each other, complementary to the mobile Internet environment to protect the security of intelligent terminals have a certain reference value.
【學(xué)位授予單位】：重慶郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TP391.44;TP309

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