一种基于.Net Framework文件加密方案的构建

Construction of A File Encryption Scheme Based on .Net Framework

本文介绍了一种简明高效的文件加密方案,先用两种对称加密算法组合加密明文,再用公钥加密算法对对称算法的密钥进行数字签名。该方案结合了对称加密算法的加密速度和公钥加密算法对密钥管理和分发的优势,可以大幅度提高抵御已知明文攻击的能力,有效保证信息交互安全和效率。与传统加密不同,该方案是基于.NET平台突出的安全体系结构上,大大降低了数据安全方面的投入,减少了来自数据安全的压力。

This paper introduces a concise and efficient file encryption scheme, which uses two types of symmetrical encryption algorithm together to encrypt dada, then, makes digital signature for the key of symmetrical encryption algorithms by a public key encryption algorithm. This scheme, combining the speed of symmetrical encryption algorithms with the advantage of public key encryption algorithm for managing and distributing keys, can improve the capability of defending data from attack greatly and guarantee data transferring security and efficiency. Different from the traditional one, this scheme is based on the outstanding security framework of . net platform, thus obviously reduces the investment and relieves the pressure of dada security.