【摘要】：隨著衛(wèi)星事業(yè)的不斷發(fā)展、衛(wèi)星通信協(xié)議的研究和應(yīng)用日益廣泛,對(duì)無(wú)線衛(wèi)星協(xié)議報(bào)文特征盲分析技術(shù)的研究迫在眉睫。協(xié)議報(bào)文特征盲分析技術(shù)在信息獲取、網(wǎng)絡(luò)安全與監(jiān)控等技術(shù)領(lǐng)域具有非常廣泛的應(yīng)用,已經(jīng)成為這些領(lǐng)域研究的重點(diǎn)。面向無(wú)線衛(wèi)星通信的協(xié)議報(bào)文盲分析是一個(gè)新的研究課題,所以對(duì)該技術(shù)進(jìn)行的研究具有重要的理論意義和實(shí)用價(jià)值。在網(wǎng)絡(luò)安全與信息對(duì)抗領(lǐng)域,目前為止人們更多的研究?jī)A向于傳輸層以上的協(xié)議識(shí)別。數(shù)據(jù)鏈路層位于OSI模型的物理層和傳輸層之間,起到了承上啟下的作用。當(dāng)物理層偵查認(rèn)知獲取目標(biāo)數(shù)據(jù)流之后,對(duì)數(shù)據(jù)鏈路層的協(xié)議識(shí)別顯得尤為重要,只有識(shí)別出數(shù)據(jù)鏈路層的協(xié)議類型才能確定目標(biāo)所采用的應(yīng)用協(xié)議類型。所以本文重點(diǎn)對(duì)空間數(shù)據(jù)鏈路層中的無(wú)線衛(wèi)星通信協(xié)議識(shí)別中的關(guān)鍵技術(shù)進(jìn)行研究。本文主要對(duì)三個(gè)問(wèn)題進(jìn)行研究:(1)協(xié)議報(bào)文結(jié)構(gòu)的盲識(shí)別。挖掘同一報(bào)文序列中的報(bào)文格式,包括協(xié)議特征字段內(nèi)容、協(xié)議特征字段出現(xiàn)頻率、協(xié)議特征字段的位置信息等。提出一種基于遺傳學(xué)算法的協(xié)議報(bào)文結(jié)構(gòu)盲識(shí)別方法。(2)無(wú)線衛(wèi)星通信協(xié)議類型的盲識(shí)別。通過(guò)分析并仿真協(xié)議,歸納總結(jié)不同協(xié)議的特征,建立協(xié)議的特征規(guī)則庫(kù),提出DVB-S、DVB-S2、DVB-RCS三種無(wú)線衛(wèi)星通信協(xié)議的識(shí)別方法。(3)無(wú)線衛(wèi)星通信協(xié)議參數(shù)的盲識(shí)別。本文所做的無(wú)線衛(wèi)星通信協(xié)議參數(shù)的盲識(shí)別,主要是針對(duì)擾碼參數(shù)的盲識(shí)別。提出一種基于m序列與卷積相關(guān)攻擊算法的擾碼盲識(shí)別方法,并與現(xiàn)有的幾種擾碼盲識(shí)別技術(shù)進(jìn)行對(duì)比實(shí)驗(yàn)分析。
[Abstract]:With the development of satellite industry, the research and application of satellite communication protocol is becoming more and more extensive. It is urgent to study the blind analysis technology of wireless satellite protocol packet. Blind analysis of protocol packet features has been widely used in the fields of information acquisition, network security and monitoring, and has become the focus of research in these fields. The analysis of protocol packet illiteracy for wireless satellite communication is a new research topic, so the research on this technology has important theoretical significance and practical value. In the field of network security and information confrontation, more research has been focused on protocol identification above transport layer. The data link layer lies between the physical layer and the transport layer of the OSI model. When the physical layer detects the target data stream, the protocol identification of the data link layer is particularly important. Only by identifying the protocol type of the data link layer can the application protocol type used by the target be determined. Therefore, this paper focuses on the key technologies of wireless satellite communication protocol identification in spatial data link layer. This paper mainly studies three problems: (1) Blind recognition of protocol message structure. Mining the message format in the same message sequence, including the content of the protocol feature field, the frequency of the protocol feature field, the location information of the protocol feature field, etc. A genetic algorithm based blind recognition method for protocol packet structure is proposed. (2) Blind recognition of protocol types for wireless satellite communication. By analyzing and simulating protocols, the characteristics of different protocols are summarized, the feature rule base of protocols is established, and the identification methods of three kinds of wireless satellite communication protocols of DVB-S,DVB-S2,DVB-RCS are proposed. (3) Blind identification of parameters of wireless satellite communication protocols. Blind identification of wireless satellite communication protocol parameters is mainly aimed at scrambling code parameters. A scrambling code blind recognition method based on m sequence and convolution correlation attack algorithm is proposed and compared with several existing scrambling code blind recognition techniques.
【學(xué)位授予單位】：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)】：TN927.2
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本文編號(hào)：2293563