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Based on FPGA technology network encryption card

Author: WangJianBin
Tutor: WangDaYong；SunWeiChi
School: Fudan University
Course: Software Engineering
Keywords: Network encryption card Stream ciphers FPGA TCP / IP protocol stack
CLC: TN791
Type: Master's thesis
Year: 2008
Downloads: 183
Quote: 1
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Abstract


With the process of promoting the rapid development of the Internet and the global information the consequent network security issues are also increasingly intensified. Hardware security solutions based on programmable logic devices not only provide the ability to parallel processing , but also has a number of advantages of flexible design , high reliability, and good scalability . This article is for specific research and implementation of FPGA-based network encryption card technology , the master network transmission agreement , on the basis of the principle of data transmission and network encryption technology , the network encryption card hardware and software design . The thesis work has a certain practical significance to promote the research and development of network encryption products . Firstly, starting from the overall architecture of the network card in between the PCI and the chip card design FPGA encryption chip , the FPGA encryption chip by the PCI interface , ISA interface , the control logic module , the encryption chip module and a data encryption / decryption module constitutes . Wherein the control module is responsible for data distribution and data encryption / decryption module control ; encryption chip is responsible for generating the key sequence ; data encryption / decryption module is responsible for the encryption of the plaintext data . In this thesis, the control module and data encryption / decryption module functional design using VHDL language to programming and encryption chip signal transmission between the control module and data encryption / decryption module has been optimized . On the software side , the first use of the C language NIC initialization procedure , the completion of the initialization settings of the network card ; Then, the network card to send, the receiving process and the TCP / IP protocol stack programming , while addressing the multi-threaded data transmission problems. On this basis , the use of Borland C Builder completed the display and control interface design . Good man-machine interface , the successful completion of the whole process of the data communication experiment .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Digital circuits > Logic circuits
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