摘要
DES算法是最早、最著名的对称密钥加密算法,它是由IBM公司在上个世纪70年代发展起来的。几十年来,DES一直活跃在国际保密通信的舞台上,扮演了十分重要的角色,被广泛应用在ATM、智能卡和USBKey等很多领域。介绍了DES算法产生的背景以及算法流程,并讲述了在TMS320VC33中的实现和优化的问题,并对优化前和优化后的效率进行了比较。
DES algorithm is the earliest and best-known symmetric encryption algorithm developed by IBM in the 1970s last century. For decades, DES, always active on the international arena of secure communication, has played an important rule. It is widely used in ATM, smart card and USBKEY etc. This article describes first the background of DES algorithm and the algorithm flow, then the implementation and optimization in TMS320VC33. It also compares the algorithm efficiency before and after optimization.
出处
《信息安全与通信保密》
2010年第10期64-66,共3页
Information Security and Communications Privacy
