国密SM2数字签名算法与ECDSA算法对比分析研究

国密算法的公布是大势所趋，2010年12月公布了SM2椭圆曲线公钥密码算法与SM3哈希算法，国密算法将接受全面的验证，走出国门成为可能。本文首先对ECDSA算法与国密SM2椭圆曲线数字签名算法进行了介绍，接着对ECDSA-SM2算法的数字模型进行了正确性证明。最后，本文就对待签名信息的预处理、ECDLP、哈希函数选择、安全性方面对ECDSA与ECDSA—SM2进行了对比分析研究。

The Comparision between Digital Signature based on SM2 and ECDSA

The development of information science and information construction of public security information to get a more extensive space for the development of the public security information work,constantly enrich the content,so the need for public security intelligence concept transformation and value exploration re-sorted. The public secudty intelligence concept transformation includes information,information network,intelligence and information chain,public security intelligence value exploration including speculative information, cultural information,information management and the information science.