文档介绍：华北电力大学(北京) 硕士学位论文网络加密卡的研究与设计姓名:孔祥莉申请学位级别:硕士专业:信息与通信工程;信号与信息处理指导教师:赵莲清 201103 华北电力大学硕十学付论文摘要随着互联网的飞速发展和全球信息化进程的推进,网络安全问题也日益加剧。而密码技术是保证信息安全的重要手段,是信息安全的核心。在各种密码算法中,分组密码具有加解密速度快、易于标准化和便于软硬件实现等优点,通常是信息安全中实现数据加密、数字签名和密钥管理的核心体制。AES算法是分组密码算法中具有代表性的一个算法。论文详细的介绍了AES算法的实现原理和加密过程,并针对FPGA具有设计灵活、可靠性高、扩展性好等一系列优点,论文利用VHDL语言在FPGA中实现了AES算法。并且论文给出了算法在FPGA中的字节替换与行变换合并、列混合和逆列混合运算等的优化,从而在实现上大大减少了硬件使用面积,较大提高了硬件加/解密速度,在面积和速度综合考虑上达到了一个较好的平衡。基于FPGA的AES算法的优化实现为网络加密卡的设计搭建了一个良好的平台。在掌握网络传输协议、数据传输原理的基础上,论文首先从网卡的总体架构设计开始,在PCI和网卡芯片之问,设计加入了FPGA加密芯片。该FPGA 加密芯片由PCI接口、数据加解密模块构成,其中数据加解密模块就是应用了前面的优化实现。关键词:加密;优化;网络;AES;FPGA 华北电力大学硕十学位论文 Abstract With the fastdevelopment ofIntemet and theadvancement ofglobal information process,the issues work security are also aggravating cryptograph ictechnology is an important way to ensure information security,and itis the kernel ofinformation allkinds ofencryption algorithms,the block cipher has many advantages,such as highspeed ofencryption and decryption,easy to standardize and convenient to implement by both software and iS always the crucial standard toimplement dataencryption,digital signature and key algorithm is arespective one among block algorithms. This paper introduces the implementation principle and encryption process of AES algorithm indetail,and does the implementation of AES algorithm by using VHDL due tothe advantages ofFPGA,such as flexibledesign,high reliability and good ’S more,this paper makes some optimization such as merger of Sub Byt6s and ShiftRows,Mix Columns/Inverse Mix Columns optimization,which reduce hardware area to a large extent,increases the hardware speed of encryption/decryption,and achieve a tradeofr between throughput with area and optimized implementation ofAES algorithm based on FPGA builds agood platform for the design work encryption the basis of work transmission protocol and data transmission principle,the paper designs the overall arch