一次一密加密系统设计与实现  

Design and Realization of Once a Secret Key Encrypt System

作　　者：邢书宝[1] 李刚[1] 薛惠锋[1] 

机构地区：[1]西北工业大学

出　　处：《计算机技术与发展》2007年第3期150-152,155,共4页Computer Technology and Development

基　　金：西安科技大学科研培育基金项目(200649)

摘　　要：文中在VC++6.0环境下设计并实现了一次一密文件加密系统。针对文件加密的特点:在文件的头部和尾部有相同或类似关于文件类型的信息,为了防止这部分信息对文件加密产生的影响,提出了相应的加密方法,并通过穷举法和分析破译法对加密有效性进行验证。同时设计并实现安全的随机密钥产生系统,通过特定算法,使密钥序列更接近随机序列。用户可以输入密钥序号系统自动采用相应密钥进行文件加密,也可以自定义密钥,密钥定期更新,以保证系统具有较高的安全性。Once a secret key encrypt system in VC＋ ＋ 6.0 environment is designed and realized. Aiming at the characteristic of file encrypting： there are the same or similar information about file type in the document＇s head and bottom, in order to prevent the infection which product those information to file encrypt, it put forward a specifically encrypting method aim at system, moreover, the encrypting＇ s validity put up validate using the method of unlimit enumerate and analyse decrypt. At the same time designed and realized secret key producing system, through the especially arithmetic, make the serial number of secret key is more close to random serial number. User can enter secret key＇s serial number, the system automatically use the correspond secret key encrypt to the file, and also can user- definde secret key,updated the secret key in a period of time, insure the system possess upper security.

关 键 词：加密技术 一次一密 随机密钥 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]