基于CC2430的无线数据安全传输

Wireless Data Transferring via Single-Chip of CC2430

无线网络安全是无线通信中的重要问题,也是连网嵌入式系统沉重的负担,但基于IEEE802.15.4标准的Zigbee无线通信单片机CC2430,内置了高级加密标准AES协处理器,方便了应用和设计.本文介绍了Zigbee的网络安全模型及高级加密标准AES,分析了CC2430的AES协处理器的编程接口,描述了AES各种模式下的信息处理过程,重点给出了CCM模式下的Zigbee网络认证的实现细节.

Wireless network security, a high overhead burden of an embedded system, is essential to wireless communications. The built-in AES coprocessor of CC2430 is applied easily and based on the protocol of Zigbee, compatible with IEEE 802.15.4. The security model of Zigbee and AES are introduced firstly. Next, the programming interface of AES coprocessor in CC2430 is described as well. The implementation details of various modes of AES, such as ECB, CBC, CFB, OFB, CTR and CBC-MAC, are primarily analyzed.