基于ECC数字签名的实现及优化

为满足无线传感器网络对信源端身份认证的需求，在TelosB硬件节点上实现椭圆曲线加密机制（ECC）数字签名算法，并对ECC的点乘运算模块进行优化。改进算法的运算复杂度和实际节点运行情况都优于已有的功能软件。实验结果表明，在硬件平台和加密强度相同的情况下，改进后的ECC算法可以有效提高数字签名的运算速度。

Implementation and Optimization of ECC-based Digital Signature

In order to meet the requirements of Wireless Sensor Network(WSN) to information source ID authentication, the Ellipse Curve Cryptography(ECC) digital signature algorithm is implemented on TelosB hardware nodes. The dot product module of ECC is optimized. Compared with existed functional softwares, the operation complexity and practical nodes operation situations are better. Experimental results show this improved ECC algorithm can promote the operation speed effectively with the same hardware platform and cryptography intensity.