一种USB加密狗的可靠性分析与设计

作者：徐敏，诸葛振荣 日期：2007-08-31/span> 浏览：3883 查看PDF文档

                                                     一种USB加密狗的可靠性分析与设计
                                                                   徐敏，诸葛振荣
                                             (浙江大学 电气工程学院，浙江 杭州 310027)

摘 要：讨论了使用单片机和USBN9603芯片所设计的USB加密狗。分析了破解技术、反破解技术，并提出了反软件模拟、反静态分析和反动态跟踪等方法；最后考虑将USB加密狗与CAD应用软件相结合，提出了保证数据交互的完整性的可靠措施以及固件程序设计的可靠性方案,并给出了实验结果。
关键词：加密狗；可靠性；通用串行总线；反破解

                                     Reliability analysis and design of a USB softdog
                                                 XU Min, ZHUGE Zhenrong
                (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: A USB softdog designed by MCU and USBN9603 chip was discussed. Illegal decryption technique and anti decryption methods were analyzed. such as anti software simulation, anti static anlysis and dynamic trace were proposed. Finally, according to combination of the USB softdog and CAD application software, integrity of interactive data as well as reliable firmware program design were also mentioned. And experiment result was given out.
Key words:softdog; reliability; universal serial bus (USB); anti decryption

参考文献(Reference)：
［1］毕进军，于志平，李 伦.通过USBN96O3／P89C51平台实现USB接口硬件加密［J］.微型机与应用，2004，23(4)：17-20.
［2］郑 超.基于USB/PCI接口加密平台设计与实现［D］.长沙:国防科学技术大学，2002.
［3］Semiconductor Corporation. USBN9603 Datasheet［EB］. National Semiconductor Corporation,2001.
［4］胡晓军，张爱成.USB接口开发技术：第1版［M］.西安：西安电子科技大学出版社，2005.
［5］李 明.一种USB软件加密狗的设计［J］.电子器件，2006，29(1)：205-208.