蓝牙系统加密算法的改善方案  

Improvement of Encryption Algorithm in Bluetooth

作　　者：杨红丽[1] 郑之光[1] 

机构地区：[1]郑州大学信息工程学院,郑州450052

出　　处：《郑州大学学报（理学版）》2003年第2期42-45,共4页Journal of Zhengzhou University:Natural Science Edition

基　　金：河南省自然科学基金项目

摘　　要：首先从理论上分析了蓝牙技术中信息加密的关键问题即E0 流加密算法 ,得出了蓝牙技术在安全性方面存在的问题 .主要问题是E0 流加密所用的参数易被替换及E0 流加密算法本身存在有一定的缺陷 .针对这些问题提出用DES分组加密算法作为蓝牙系统加密算法的硬件和软件解决方案 .硬件加密方案采用低成本的可编程逻辑器件和现成的用于高级加密处理的智力产权 (IP)产品实现 .The key question of information encryption in Bluetooth,E 0 stream encryption, is firstly analyzed theoretically. The secure limitation of Bluetooth is gained. The parameters of E 0 stream encryption are replaced easily.There are some limitations in E 0 stream encryption. According to these problems, bring forward DES acts as encryption algorithm.At last,the hardware and software settlements are given. The hardware scheme is finished by using low costly programmable logical devices(PLD) and available intellective products (IP). These IPs can be used to process the advanced encryption. Therefore, the software settlement is realized by C language.

关 键 词：蓝牙系统 加密算法 蓝牙技术 E0流加密算法 DES分组加密算法 无线网络 密钥管理 网络安全 

分 类 号：TN92[电子电信—通信与信息系统] TP393.08[电子电信—信息与通信工程]