基于Triple DES与RSA的文件加密系统

摘要

Comparing the characteristics of symmetric cryptography and asymmetric cryptography, this paper outlines the basic principles of the Triple DES algorithm and the RSA algorithm. On the basis of a detailed analysis of issues related to file security and in-depth study on . NET Framework encryption algorithm class, this paper proposes the file encryption scheme on the combination of the Triple DES algorithm and the RSA algorithm, designs the system' s overall structure and the basic process, then the system is realized with VB. NET. After practice, the results show that the system is simple and convenient for file encryption.%比较对称密码体制与非对称密码体制的特点,简述Triple DES算法与RSA算法的基本原理.在详细分析文件安全的相关问题和深入研究.NET Framework密码算法类的基础上,提出Triple DES算法与RSA算法结合运用的文件加密方案,设计系统的总体结构和基本流程,并以VB.NET实现了基于Triple DES与RSA的文件加密系统.实践表明,用本系统进行文件加密简单而方便.