Jilin University Zhengyuan Information Technologies Co., Ltd. provides commercial cryptography technology and network security solutions in China. It offers infrastructure products, such as public key infrastructure, hardware security module, and directory management system; security support services, including digital signature and timestamp server, authentication gateway, and audit query system; and security applications comprising rock terminal security and electronic signature systems. The company also offers LTE network security application solution; construction of national PKI certification system; PKI technology solution for customs business platform; and security solution of tax electronic bill based on PKI/CA. In addition, it provides security system planning, risk assessment, and penetration testing services; and security consulting and integration, and industry application development services. The company was founded in 1999 and is based in Beijing, China. Address: Building B, Zhonghai Times Square, Beijing, China, 100043