Patent ID: 11943373
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 5:
6. The method according to claim 1, wherein the issuing the first identity certificate through the first-tier certificate authority node further comprises:
generating a public key and a private key of the first terminal by using the first-tier certificate authority node;
generating the first identity certificate for the first terminal, the first identity certificate comprising the public key of the first terminal; and
transmitting the first identity certificate and the private key of the first terminal to the first terminal; and
the receiving a second identity certificate issuance request that is from the first terminal and that is made by using the first identity certificate further comprises:
receiving the first identity certificate from the first terminal;
receiving the second identity certificate issuance request from the first terminal, the second identity certificate issuance request comprising registration information of the local taxation bureau and a signature signed to the registration information of the local taxation bureau by using the private key of the state taxation administration; and
performing, by using the public key of the state taxation administration in the first identity certificate, a verification on the signature in the second identity certificate issuance request.