基于混沌序列动态加密的网络密码安全模型  

NETWORK PASSWORD SECURITY MODEL BASED ON CHAOTIC SEQUENCE DYNAMIC ENCRYPTION

作　　者：黄小龙[1] 

机构地区：[1]百色学院数学与计算机工程系,广西百色533000

出　　处：《计算机应用与软件》2013年第7期209-212,共4页Computer Applications and Software

基　　金：广西教育厅科研项目(201010LX498);广州大学-百色学院合作科学研究项目(GBK2010010)

摘　　要：网络密码传递事务非常频繁,其安全问题一直接倍受关注。试图构建一个网络密码的安全模型,模型在RSA加密算法和流密码的基础上,利用符号动力系统的Logistic映射来产生混沌序列,并生成随机的RSA密钥流和密码源,然后通过RSA密钥流来动态加密密码源。该模型有效提高了密码的加密强度和加密速度,保证密码能在网络快速传递的同时提高其安全性。Network password transfer transactions are very frequent, so its security issue has always been highly concerned about. In this paper we try to build a security model for network password. Based on RSA encryption algorithm and stream cipher, the model uses Logistic map in symbolic dynamical system to generate chaotic sequence, and to generate random password for RSA key stream and the password source, and then through the RSA secret key stream to encrypt the password source. The model effectively improves the strength and speed of encryption, ensures the password to be transferred quickly in network while raising its security.

关 键 词：混沌序列 RSA算法 大素数 MD5算法 流密码 动态密钥流 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]