以DES为基础的蓝牙加密算法的研究与实现

Studies and Implements of Bluetooth Encryption Algorithm Based on DES

在分析蓝牙技术标准采用的加密算法所存在问题的基础上 ,指出影响蓝牙通信安全性的一个主要问题是 E0 流加密所用的参数易被替换及 E0 流加密算法本身存在的固有缺陷 .在标准的 DES算法的基础上设计了一个适用于蓝牙设备特点的加密算法 (BT- DES) ,给出了该加密算法的软硬件解决方案 .算法 BT- DES在计算复杂度、速度等方面具有较大的优势 .

On the analysis of the questions of encryption algorithm that is adopted by Bluetooth standard, it is suggested that the main problem of security in the Bluetooth Communications is the inherent deficiencies of E 0 encryption algorithm, e.g. parameters of E 0 encryption algorithm are easy to be exchanged. The BT -DES was designed based on the standard DES. The solutions of hardware and software of BT -DES were also given. BT -DES has great advantages of rapidity and computing complexity.