摘要
研究网络通信中的加密问题,提高网络通信安全性。针对保护网络通信信息安全,需要对通信报文信息进行密钥加密,但是当通信受到网络攻击时部分通信报文被截取并破译,加密和解密都使用同一密钥的传统AES加密算法,无法有效阻止网络攻击对报文的截取、破译,造成网络通信安全性不高的问题。为解决上述问题,提出一种改进的Rijndael算法,通过随机深度优先搜索算法,在初始节点与目的节点之间选择不同的路径标识不同加密数据,对加密和解密使用不同的密钥来降低报文的破译率,避免加密和解密共用一个密钥而造成的对网络攻击的抗击性不强的问题。实验表明,改进的算法对网络攻击的抗干扰能力得到了增强,并对加强网络安全提供了有效的保障。
Research network security encryption problem.In order to protect the security of network communication and information,the communication message information encryption is necessary.But when communication network is attacked,partial communication message is intercepted and vice versa.Traditional AES encryption algorithm in which encryption and decryption used the same keys,can not effectively prevent the cyber attacks and interceptions of messages,leading to the problem that network communication safety is not high.This paper put forward an improved Rijndael method,by using random depth first searching algorithm,different paths were chosen to identify different encrypted data.Different keys were used for encryption and decryption to reduce the rate of crack message,avoiding the problem that encryption and decryption share the same key will result weak ability of anti-attack.Experiments show that the improved algorithm has stronger anti-interference ability and can strengthen the network security effectively.
出处
《计算机仿真》
CSCD
北大核心
2011年第12期130-133,共4页
Computer Simulation
关键词
网络安全
加密算法
优先搜索
Network security
Encryption algorithm
Priority search
作者简介
李志刚（1971-），男（汉族），江苏太仓人，硕士研究生，主要研究领域为计算机网络与信息安全技术。
