基于AES算法改进的蓝牙安全机制研究  

Bluetooth Security Mechanisms Research Based on AES Algorithm Modification

作　　者：杨晓非[1] 赵婷[1] 

机构地区：[1]重庆邮电大学 电工理论与新技术实验室,重庆400065

出　　处：《电视技术》2013年第5期106-109,113,共5页Video Engineering

摘　　要：对蓝牙安全机制鉴权过程中的加密算法进行了研究。分析了目前采用的基于序列密码的加密算法存在的安全隐患,提出利用分组密码实现加密的思路。详细讨论了蓝牙鉴权过程中的各类攻击方式,从硬件和软件两个方面阐述了防范的措施。对128位AES加密算法进行了研究和改进,使之能够适用于运算速度相对较低、存储资源相对较少的蓝牙移动系统环境。测试表明,改进后的AES算法可以为蓝牙的鉴权过程提供更为可靠的安全保证。The encryption algorithm in the Bluetooth security mechanism authentication process is researched. Analysis of current security risks based on the sequence of password encryption algorithm is given,the idea of block cipher encryption is proposed. The various types of attacks in the Bluetooth authenti- cation process are discussed and two kinds of preventive measures are put forward by the hardware and software. 128-bit AES encryption algorithm is re- searched and improved so that it can be applied to relatively low computing speed and storage resources in a relatively small number of Bluetooth mobile systems. The test result shows that the AES algorithm can improve Bluetooth authentication process to provide a more reliable security guarantees.

关 键 词：蓝牙 鉴权过程 分组密码 AES 

分 类 号：TN918[电子电信—通信与信息系统]