哈希签名与验证，代码编写模拟实现，运行需要安装openssl，并进行各种库文件安全证书的导入-Hash signature and verification, coding to achieve simulation run need to install openssl, and conduct a variety of library security certificate import

一种基于复合混沌映射的单向Hash函数构造-One-way Hash function construction based on composite chaotic map