【摘要】：近些年來(lái),隨著3G網(wǎng)絡(luò)、4G網(wǎng)絡(luò)和無(wú)線局域網(wǎng)等移動(dòng)通信技術(shù)的高速發(fā)展,無(wú)線通信在人們生活中的作用越來(lái)越重要,其應(yīng)用也越來(lái)越廣泛。無(wú)線自組織網(wǎng)絡(luò)是一種不需要中心控制節(jié)點(diǎn)的無(wú)線通信網(wǎng)絡(luò),這類網(wǎng)絡(luò)無(wú)需基站、路由器和無(wú)線接入點(diǎn)等基礎(chǔ)設(shè)施,無(wú)線終端通過(guò)自動(dòng)組網(wǎng)來(lái)互聯(lián)互通,因此能夠更加快速、便捷、高效地部署及通信,適合于一些緊急場(chǎng)合的通信需要。然而無(wú)線自組織網(wǎng)絡(luò)無(wú)線傳輸?shù)奶匦砸约盁o(wú)線自組織網(wǎng)絡(luò)節(jié)點(diǎn)能源有限易毀的特點(diǎn)會(huì)使得通信數(shù)據(jù)丟失嚴(yán)重且通信數(shù)據(jù)容易被敵手截取、解讀、篡改、利用等。因此,為保證無(wú)線自組織網(wǎng)絡(luò)中通信的安全性,要在無(wú)線自組織網(wǎng)絡(luò)中應(yīng)用加密算法。本文的工作如下。1.介紹了Grain系列算法中的Grain 128算法的基本原理。并針對(duì)無(wú)線自組織網(wǎng)絡(luò)的特點(diǎn)對(duì)Grain 128算法進(jìn)行了改進(jìn):將加密后的消息進(jìn)行分段,每段加入標(biāo)識(shí)序列號(hào),在解密時(shí)根據(jù)每段的標(biāo)識(shí)序列號(hào)來(lái)判斷是否有數(shù)據(jù)丟失,從而將接收到的信息正確解密,實(shí)現(xiàn)同步解密。2.將改進(jìn)后的Grain 128算法運(yùn)用到無(wú)線自組織網(wǎng)絡(luò)中,并對(duì)Grain 128算法的應(yīng)用情況進(jìn)行了相應(yīng)的測(cè)試,主要包括加解密正確性測(cè)試、數(shù)據(jù)丟失測(cè)試和效率測(cè)試。經(jīng)過(guò)測(cè)試得出以下結(jié)論:Grain 128可正確的加解密信息;在發(fā)生數(shù)據(jù)丟失時(shí),該算法可以將沒(méi)有數(shù)據(jù)丟失的分組正確解密;當(dāng)發(fā)送100MB數(shù)據(jù)時(shí),由于Grain 128加密算法的引入而導(dǎo)致的通信延遲為2.54%。
[Abstract]:In recent years, with the rapid development of 3G network, 4G network and wireless local area network and other mobile communication technologies, wireless communication plays a more and more important role in people's lives, and its application is more and more extensive. Wireless ad hoc network is a kind of wireless communication network which does not need central control node. this kind of network does not need infrastructure such as base station, router and wireless access point. Wireless terminals are connected through automatic networking, so they can be connected more quickly. Convenient and efficient deployment and communication, suitable for some emergency communication needs. However, the characteristics of wireless transmission in wireless ad hoc networks and the limited and easy to destroy the energy of wireless ad hoc network nodes will make the communication data lose seriously and the communication data can be easily intercepted, interpreted, tampered with and utilized by adversaries. Therefore, in order to ensure the security of communication in wireless ad hoc networks, encryption algorithm should be applied in wireless ad hoc networks. The work of this paper is as follows. The basic principle of Grain 128 algorithm in Grain series algorithm is introduced. According to the characteristics of wireless ad hoc network, the Grain 128 algorithm is improved: the encrypted message is segmented, each segment is added with the identification serial number, and whether there is data loss is judged according to the identification serial number of each segment when decrypting. Thus, the received information is decrypted correctly and the synchronous decryption is realized. 2. The improved Grain 128 algorithm is applied to wireless ad hoc networks, and the application of Grain 128 algorithm is tested, including encryption and decryption correctness test, data loss test and efficiency test. The following conclusions are drawn from the test: Grain 128 can encrypt and decrypt the information correctly, and when the data loss occurs, the algorithm can decrypt the packets without data loss correctly. When sending 100MB data, the communication delay caused by the introduction of Grain 128 encryption algorithm is 2.54%.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN918.1

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相關(guān)博士學(xué)位論文 前1條

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本文編號(hào)：2488447