發(fā)布時(shí)間：2018-09-02 07:38

【摘要】：隨著移動(dòng)通信技術(shù)的快速增加,業(yè)務(wù)類型越來(lái)越豐富,除了傳統(tǒng)的語(yǔ)音和數(shù)據(jù)業(yè)務(wù),手機(jī)購(gòu)物、打車、購(gòu)票、訂餐等各種新興移動(dòng)業(yè)務(wù)正快速興起,使得傳統(tǒng)的蜂窩網(wǎng)絡(luò)面臨著巨大的挑戰(zhàn),如網(wǎng)絡(luò)擁塞嚴(yán)重。另外,大量敏感的數(shù)據(jù)暴露在無(wú)線信道上傳輸,極大地限制移動(dòng)通信的發(fā)展。由此,通過(guò)組通信來(lái)和允許終端之間進(jìn)行通信的D2D(Device-to-Device)技術(shù)應(yīng)運(yùn)而生。D2D通信在減輕蜂窩網(wǎng)絡(luò)負(fù)擔(dān)、擴(kuò)大通信范圍以及傳輸速率等方面具有巨大優(yōu)勢(shì)。如何對(duì)用戶的通信內(nèi)容進(jìn)行保護(hù),防止個(gè)人隱私信息泄露,抵御非法用戶攻擊,保障用戶的合法權(quán)益,是組通信的重要研究?jī)?nèi)容之一。因此,本課題針對(duì)網(wǎng)絡(luò)擁塞問(wèn)題和通信過(guò)程中的存在的安全隱患,結(jié)合4G MTC(Machine Type Communication)設(shè)備和D2D通信中設(shè)備的特點(diǎn),以加密技術(shù)為基礎(chǔ),按照用戶的需求和組通信特點(diǎn),提出了有效的安全認(rèn)證和密鑰協(xié)商方案。研究?jī)?nèi)容如下:(1)對(duì)比分析4G組通信中幾種組認(rèn)證和密鑰協(xié)商的特點(diǎn),首先,總結(jié)群組通信相比傳統(tǒng)通信在大規(guī)模MTC設(shè)備訪問(wèn)核心網(wǎng)絡(luò)時(shí)存在的優(yōu)劣勢(shì)。然后,簡(jiǎn)要介紹了本文所用的密碼理論,數(shù)學(xué)理論以及無(wú)證書認(rèn)證體制,接著,闡述了D2D通信的特點(diǎn),安全威脅和安全需求,為后文的理論研究奠定基礎(chǔ)。(2)研究基于多群組和設(shè)備側(cè)密鑰分發(fā)的安全認(rèn)證和密鑰協(xié)商。現(xiàn)有的4G組認(rèn)證存在處理的設(shè)備有限,安全性不足等局限性。針對(duì)此問(wèn)題,本文研究了多群組的設(shè)備側(cè)認(rèn)證和密鑰協(xié)商策略,結(jié)合聚合簽名技術(shù),實(shí)現(xiàn)認(rèn)證信息的聚合,數(shù)據(jù)的認(rèn)證性和完整性。此外,本文還考慮了4G通信中系統(tǒng)存在的蓄意、攻擊節(jié)點(diǎn)的破壞行為。理論分析和仿真結(jié)果表明,該方案可以有效地減少帶寬的消耗,減輕核心網(wǎng)的網(wǎng)絡(luò)擁塞,提升4G鏈路建立的安全性。(3)研究D2D通信中基于ECC的無(wú)證書的安全組認(rèn)證。現(xiàn)有的安全組通信研究未充分考慮大量D2D用戶設(shè)備組通信,用戶設(shè)備的處理能力等問(wèn)題,針對(duì)此問(wèn)題,該方案基于D2D的安全組通信,采用無(wú)證書認(rèn)證和橢圓曲線加密兩種技術(shù)。為了避免D2D用戶的動(dòng)態(tài)加入和離開(kāi),D2D組需要執(zhí)行密鑰的更新。該方案在密鑰更新方面,相對(duì)已有的方案復(fù)雜度較低,有效地抵抗常見(jiàn)的攻擊,如前向攻擊,后向攻擊,可以充分地保證系統(tǒng)的安全性。本文研究工作在解決網(wǎng)絡(luò)日益擁塞的瓶頸問(wèn)題以及確保安全認(rèn)證和密鑰協(xié)商方面具有十分重要的理論意義和使用價(jià)值。
[Abstract]:With the rapid increase of mobile communication technology, the types of business are becoming more and more abundant. Besides the traditional voice and data services, mobile phone shopping, taxi, ticketing, ordering and other new mobile services are rising rapidly. Traditional cellular networks are facing enormous challenges, such as severe network congestion. In addition, a large number of sensitive data are exposed to the wireless channel transmission, greatly limiting the development of mobile communications. As a result, D2D (Device-to-Device) technology, which uses group communication and allows communication between terminals, has great advantages in reducing the burden of cellular network, expanding communication range and transmission rate. How to protect the user's communication content, prevent the personal privacy information from leaking, resist the illegal user attack, protect the user's legitimate rights and interests, is one of the important research contents of the group communication. Therefore, this subject aims at the network congestion problem and the hidden danger in the communication process, combining the characteristics of 4G MTC (Machine Type Communication) equipment and D2D communication equipment, based on encryption technology, according to the needs of users and the characteristics of group communication. An effective security authentication and key agreement scheme is proposed. The research contents are as follows: (1) the characteristics of group authentication and key agreement in 4G group communication are analyzed. Firstly, the advantages and disadvantages of group communication compared with traditional communication in accessing the core network of large-scale MTC devices are summarized. Then, the cryptographic theory, mathematical theory and certification-free authentication system used in this paper are briefly introduced. Then, the characteristics, security threats and security requirements of D2D communication are described. (2) Security authentication and key agreement based on multi-group and device-side key distribution are studied. The existing 4G group authentication has some limitations such as limited processing equipment, insufficient security and so on. In order to solve this problem, this paper studies the device side authentication and key agreement strategy of multi-group, and combines the technology of aggregate signature to realize the aggregation of authentication information, the authentication and integrity of data. In addition, this paper also considers the vandalism of the system in 4G communication. Theoretical analysis and simulation results show that the proposed scheme can effectively reduce bandwidth consumption, reduce network congestion in core networks, and improve the security of 4G link establishment. (3) the authentication of secure group without certificates based on ECC in D2D communication is studied. The existing research on security group communication has not fully considered a large number of D2D user equipment group communication, user equipment processing ability and so on. In view of this problem, this scheme is based on D2D secure group communication, adopting two kinds of techniques: certificate free authentication and elliptic curve encryption. In order to avoid D2D users joining and leaving D2D group dynamically, we need to perform key update. Compared with the existing schemes, the proposed scheme has lower complexity and can effectively resist common attacks, such as forward attack and backward attack, which can fully guarantee the security of the system. The research work in this paper is of great theoretical significance and practical value in solving the bottleneck problem of increasing network congestion and ensuring secure authentication and key agreement.
【學(xué)位授予單位】：南京郵電大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN918.4

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本文編號(hào)：2218698