摘要
提出了一种运用整数运算代替浮点运算的数字混沌保密改进算法,并将该方法用于USB软件加密狗的设计。该文分析了基于混沌技术的USB软件加密狗工作原理和工作过程,着重说明了PC主机与加密狗之间交换数据的详细过程。最后,通过对几种常见的破解方法的分析,表明了该加密狗较强的反解密性能。
A improved digital chaos algorithm in which float point arithmetic is replaced by integeral arithmetic is introduced, and the chaotic sequence is applied to the USB software dog. This paper analyzes the principle and process of the digital chaos USB software dog. This dissertation elaborated the data exchange between PC computer and USB software dog. At last the anti-circumvention performance of this design can be seen in the paper by analyzing the principle of a few typical decryption technology.
出处
《微计算机信息》
北大核心
2005年第06X期15-17,共3页
Control & Automation
关键词
混沌
单片机
软件狗
加密
解密
Chaos
Single-chip computer
Software dog
Encryption
Decryption
