无线卫星通信协议盲识别的关键技术研究
发布时间：2018-10-25 11:23
【摘要】：随着卫星事业的不断发展、卫星通信协议的研究和应用日益广泛,对无线卫星协议报文特征盲分析技术的研究迫在眉睫。协议报文特征盲分析技术在信息获取、网络安全与监控等技术领域具有非常广泛的应用,已经成为这些领域研究的重点。面向无线卫星通信的协议报文盲分析是一个新的研究课题,所以对该技术进行的研究具有重要的理论意义和实用价值。在网络安全与信息对抗领域,目前为止人们更多的研究倾向于传输层以上的协议识别。数据链路层位于OSI模型的物理层和传输层之间,起到了承上启下的作用。当物理层侦查认知获取目标数据流之后,对数据链路层的协议识别显得尤为重要,只有识别出数据链路层的协议类型才能确定目标所采用的应用协议类型。所以本文重点对空间数据链路层中的无线卫星通信协议识别中的关键技术进行研究。本文主要对三个问题进行研究:(1)协议报文结构的盲识别。挖掘同一报文序列中的报文格式,包括协议特征字段内容、协议特征字段出现频率、协议特征字段的位置信息等。提出一种基于遗传学算法的协议报文结构盲识别方法。(2)无线卫星通信协议类型的盲识别。通过分析并仿真协议,归纳总结不同协议的特征,建立协议的特征规则库,提出DVB-S、DVB-S2、DVB-RCS三种无线卫星通信协议的识别方法。(3)无线卫星通信协议参数的盲识别。本文所做的无线卫星通信协议参数的盲识别,主要是针对扰码参数的盲识别。提出一种基于m序列与卷积相关攻击算法的扰码盲识别方法,并与现有的几种扰码盲识别技术进行对比实验分析。
[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.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN927.2
，
本文编号：2293563
[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.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN927.2
，
本文编号：2293563
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