一种签名私钥生成及数字签名方法

本发明公开的签名私钥生成及数字签名方法，签名私钥由客户端和服务端共同参与计算，其中，签名私钥由服务端根据客户端和服务端产生的中间数据，通过服务端计算得到。客户端通过对比服务端生成的签名公钥和自身生成的签名公钥，可以确定签名私钥是由客户端生成的中间数据生成，服务端不能独立生成签名私钥，在生成签名的过程中，客户端和服务端的计算结果合并成为完整的签名，实现客户端对签名过程的安全控制，从而确保签名私钥使用的安全性，实现了客户端能够参与签名私钥的生成和使用签名私钥进行签名的过程。 The invention discloses a signature private key generation and digital signature method. According to the signature private key generation and digital signature method, a signature private key is obtained by joint participation in calculation by a client and a server, wherein the signature private key is obtained through calculation by the server according to intermediate data generated by the client and the server. The client compares a signature public key generated by the server with a signature public key generated by the client, thus can determine that a signature private key is generatedby intermediate data generated by the client; the server cannot independently generate a signature private key; and in the signature generation process, the calculation results of the cl