基于DSP协处理器的蓝牙安全传输方案设计

摘要

深入分析蓝牙安全机制，结合蓝牙芯片的特点，提出了一种蓝牙安全传输方案，该方案通过重新分配片内资源，用DSP协处理器处理相对复杂的密码运算，解决了通过外部增加硬件增强蓝牙安全性而带来的信息“落地”、硬件复杂等问题。实验结果表明，方案能在不影响蓝牙数据传输速率的情况下增强蓝牙通信安全，且能有效降低蓝牙安全产品成本，实现方便，可靠性高。%The Bluetooth security mechanism and the structure of the Bluetooth chip are analyzed, and then a Bluetooth security transmission scheme is proposed in this paper. By redistributing the in-chip resources, DSP coprocessor is used to deal with the comparative complex cryptographic algorithm. Contrasting with adding extra chip hardware, the proposed scheme solves the problem of information leakage and hardware complexity. Experimental results demonstrate that the scheme can not only enhance the communication security of Bluetooth and reduce the cost of Bluetooth security products, but also shows high reliability without influencing the Bluetooth transmission speed.