GmSSL是一个开源的密码工具箱，支持SM2/SM3/SM4/SM9等国密(国家商用密码)算法、SM2国密数字证书及基于SM2证书的SSL/TLS安全通信协议，支持国密硬件密码设备，提供符合国密规范的编程接口与命令行工具，可以用于构建PKI/CA、安全通信、数据加密等符合国密标准的安全应用。(GmSSL is an open source code toolbox, support SM2/SM3/SM4/SM9 in dense (national commercial cipher) algorithm, SM2's Secret digital certificate and security communication protocol based on SSL/TLS SM2 certificate, to support the country encryption hardware cryptographic equipment, provide programming interface and a command-line tool in dense code, can be used to build PKI/CA, communication, security the safe application of data encryption standard density.)