Research On Implementation And Designed Of Texts Filtering On FPGA

With the rapid development of Internet, the problem of network security has become more and more important. It is more emergency to advance texts filtering security equipment and technology that adapt to internet growth.but there are some texts filtering technology in software which velocity is slower than in hardware the scope of project.The subject is to solve above question. The paper focuses on those questions to design and research FPGA,the details is the following :In the first part, the paper introduces the development of texts information filtering technology and the background of the project. It is necessisary to filter texts on internet .theories of text filtering , including definition, existence technology, rules module and intelligence network card module etc, are discussed.Then the traits of FPGA is analyse in details .both the logical architecture and the special traits are introduced .mainly logical element is designed to looking-table .In chapter 4, the paper discusses text filtering that is implemented with text filtering matched rules and with the intelligence network card designed .and then CAM,TCAM,dynamic FPGA are designed by ram .by the tool that is IP express in the isplever projecton navigator..Then this paper presents a new steganalysis method for designed of texts filtering on FPGA .It is talked about how to imply to CAM,TCAM and dynamic FPGA with RAM. the essay take IP filter for example to analyse by the IP data that was splited into five parts. We will analysis the designed on FPGA in chapter 5,and tell the difference from the both existence designed and just designed .