基于混沌序列的网络信息安全加密系统设计  

Design of network information security encryption system based on chaotic sequence

作　　者：姜明富 JIANG Mingfu(School of Information Engineering,Xinyang Agriculture and Forestry University,Xinyang 464006,China)

机构地区：[1]信阳农林学院信息工程学院,河南信阳464006

出　　处：《现代电子技术》2018年第23期76-80,共5页Modern Electronics Technique

基　　金：河南省科技厅科技攻关计划项目(172102210451):大数据下的混沌键控视频加密技术研究;河南省科技厅软科学项目(162400410469):基于视角无关的人体动作识别方法研究~~

摘　　要：为了提高网络信息安全性能,改进原系统得到一种基于混沌序列的网络信息安全加密系统设计。该系统设计包含硬件设计和软件设计两部分,使用DM9000型号的芯片设计系统控制器,使信息地址存放在具有可擦属性的只读存储器中,支持网络信息的加密传输。将该控制器添加在外围底板电路中,使电压安全转换。根据混沌序列加密原理,引入扰动混沌映射,保证输出的序列为理想状态下的加密序列。并设置新密钥管理机制,实现对网络信息的安全加密。为了验证系统设计的合理性,对其保密性进行实验验证分析,结果表明,吞吐量对传统系统的保密程度影响较大,与基于混沌序列系统保密程度最高值相差16%,最低值相差17%。在网络信息安全加密系统中引入扰动混沌映射方法,可提高系统的保密程度约20%,该系统具有较高的保密性和实用价值。The design of network information security encryption system based on chaotic sequence is obtained by improving the original system to improve the network information security performance.The system design includes hardware design and software design.The DM9000 chip is used to design the system controller,which makes the information address store in the read-only memory with erasable attribute,and supports the encrypted transmission of network information.The controller is added into the peripheral backplane circuit to ensure the voltage safe conversion.According to the chaotic sequence encryption principle,the disturbance chaotic mapping is introduced to output the ideal encryption sequence.A new secret key management mechanism is set to realize the security encryption of network information.In order to verify the rationality of the system design,the experimental verification and analysis are carried out for the confidentiality of the system.The experimental results show that the throughput has a significant impact on the confidentiality degree of the traditional system,the maximum confidentiality degree of the system based on chaotic sequence is 16%higher than that of the traditional system,and the minimum confidentiality degree of the system based on chaotic sequence is 17%higher than that of the traditional system.The disturbance chaotic mapping method introduced into the network information security encryption system can increase the system confidentiality about 20%.The system has high confidentiality and practical value.

关 键 词：混沌序列 网络信息 安全 加密 密钥 保密程度 

分 类 号：TN918.8-34[电子电信—通信与信息系统]