基于软件保护之研究——以分析某软件为例  

Study of Software Protection——In The Case Of Certain Software

作　　者：李卫华[1] 

机构地区：[1]同济大学软件学院

出　　处：《福建师大福清分校学报》2015年第2期16-25,共10页Journal of Fuqing Branch of Fujian Normal University

摘　　要：结合数学理论与软件技术来讨论RSA加密算法在计算机软件保护中的弊端。很多软件的开发者为保护自己的程序不被非法使用做出软件注册机,在软件中嵌入了保护算法对软件进行使用限制,RSA就是众多加密解密算法中的佼佼者。作为典型的非对称加解密算法,它具有不可比拟的优越性。软件以RSA算法进行保护,并不能保证软件本身安全性,有时操作不当可能产生其它安全性问题。这里,我们以一软件为例子,说明该软件以RSA算法保护下,仍能以偷天换日技巧,间接更改RSA参数,文中将演示这一攻击过程。To protect their codes from being illegally used, many software developers embed protection al- gorithms in their software to limit the usage. Among various encryption and decryption algorithms RSA stands out as an incomparable asymmetric encryption algorithm thus it naturally becomes one of the most promising candidates for protecting misuse of proprietary software. However, in this paper we point out that the superiority of RSA in encryption and decryption may not necessarily empower it to provide adequate software protection. Improper use of RSA may even jeopardize the integrity of the software. To justify our claim we discuss the shortcomings of the RSA eneryption algorithm for protecting computer software by applying software technologies combined with mathematical theory.

关 键 词：破解软件 PATCH RSA RSA注册机 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]