提出了一个新的强壮的密钥管理方案。该方案利用秘钥生成中心（KGC）与秘钥因子组合中心（KGCC）共同完成秘钥托管与秘钥的生成-Proposed a new strong key management program. The program draws on secret key generation center (KGC) and the secret key factors and Fabrication Center (KGCC) co-hosted with the secret key to the completion of secret key generation