Research on the POP of encryption key as certificate updating
证书更新时加密私钥拥有证明研究

To deal with the POP of encryption key as certificates update, all walys about the POP were researched, and the scheme similar to the indirect method based on LDAP was proposed, the Schema could link PoP with the private key as certificates update. This way could solve the POP well. At last a example was given to describle the management process of the POP with the LDAP server.