The certificate is produced directly in USB Key and the private key does not leave the hardware, which guaranting the private key security. The certificate authentication center is the core of certificate authentication system.

• 本文描述系统遵守国家标准,按双中心(证书认证中心与密钥管理中心)构建,证书直接产生在USB Key中,私钥不出硬件,保证了私钥的安全性。