一种采用多种加密算法的文件加密方法  

A FILE ENCRYPTION METHOD USING MULTIPLE ENCRYPTION ALGORITHMS

作　　者：姚峰[1] 何成万[1] 胡宏银[1] 

机构地区：[1]武汉工程大学计算机科学与工程学院,湖北武汉430073

出　　处：《计算机应用与软件》2009年第11期272-273,285,共3页Computer Applications and Software

摘　　要：针对传统文件加密系统中加密算法单一、加密文件格式简单、安全性相对较低等问题,结合对称密码算法中的DES、RC2、Trip leDES、AES和单向散列算法SHA-256等算法,提出了一种采用多种加密算法的文件加密方案。详细地论述了加密文件格式的设计、多种加密算法动态产生的方法、加密解密过程,以及数据完整性和安全性。通过实验论证了其实用性,同时分析了其优点与不足。To solve the problems of single encryption algorithm, simple file format and lower security in traditional file encryption systems, an encryption solution is proposed with muhiple encryption algorithms which integrate symmetric encryption methods such as DES, RC2, TripleDES, AES and hash algorithms such as SHA-256. The design of encryption file format, the dynamic production approach of multiple encryption algorithms, encryption/decryption process, data integrity and security are discussed in detail. Its practicability is demonstrated by experiment, at the same time some strongpoints and shortages about this solution are discussed as well

关 键 词：对称加密算法 文件加密 散列算法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP393.08[自动化与计算机技术—计算机科学与技术]