一种USB软件加密狗的设计  

Design of a USB Software Dog

作　　者：李明 沈汀[1] 

机构地区：[1]中国科学院研究生院

出　　处：《电子器件》2006年第1期205-208,共4页Chinese Journal of Electron Devices

摘　　要：软件加密狗作为保护商用软件知识产权的重要方式,近几年取得了快速发展。简单介绍了软件加密狗的几个发展阶段,具体说明了加密狗的软、硬件原理,并分析了软件加密狗与信息加密的异同,详细介绍了Cypress公司EZUSBFX2系列CY7C68013芯片的内部结构,并给出了基于此芯片的加密狗的硬件实现,给出加密狗内软件程序流程图,并简要介绍了驱动程序和高级应用程序的制作。最后分析了本加密狗在软、硬件的技术优势。As an important protection method for commercial software knowledge property, software dog has developed rapidly in recent years. This paper briefly introduced the development phases of software dog, expatiated on the software dog＇s software and hardware principles, and analyzed the sameness and difference between software dog and encrypted information. Based on the particular introduction of the inner architecture of CY7C68013 chip which belongs to Cypress corporation＇s EZ-USB FX2 series, the paper gave the hardware implementation of software dog, presented the program flow chart of software dog, and introduced the making process of both dflving program and super application program. The technical advantages in software and hardware aspects of this software dog were also discussed in the end.

关 键 词：加密 USB 软件加密狗 

分 类 号：TP331[自动化与计算机技术—计算机系统结构]