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

Claim 9:
10. The method according to claim 1, wherein the issuing a third identity certificate to the second terminal through the third-tier certificate authority node further comprises:
performing authentication on the registration information of the grassroots unit by using the third-tier certificate authority node;
generating a public key and a private key of the third terminal for the third terminal when the authentication succeeds;
generating the third identity certificate for the third terminal, the third identity certificate comprising the public key of the third terminal; and
transmitting the third identity certificate and the private key of the third terminal to the second terminal, so that the second terminal forwards the third identity certificate and the private key of the third terminal to the third terminal, the third identity certificate and the private key of the third terminal being used for communication between the third terminal and another blockchain node in the blockchain network.