文章在研究椭圆曲线密码体制的基础上,针对无线局域网计算能力有限的特点,改进了椭圆曲线数字签名算法,并对其进行了正确性验证和安全性分析。将改进算法与传统算法对比,结果表明,改进算法签名方不需要进行求逆运算,比传统算法具有更少的时间复杂度。 Based on the research of elliptic curve cryptosystem, this paper improves the elliptic curve digital signature algorithm based on the limited computing power of wireless local area network, and verifies and analyzes the correctness of the algorithm. Comparing the improved algorithm with the traditional one, the results show that the improved algorithm does not need to perform the inverse operation on the signed side, and has less time complexity than the traditional one.