US 11,943,373 B2
Method for issuing identity certificate to blockchain node and related apparatus
Mao Cai Li, Shenzhen (CN); Zong You Wang, Shenzhen (CN); Kai Ban Zhou, Shenzhen (CN); Chang Qing Yang, Shenzhen (CN); Hu Lan, Shenzhen (CN); Li Kong, Shenzhen (CN); Jin Song Zhang, Shenzhen (CN); Yi Fang Shi, Shenzhen (CN); Geng Liang Zhu, Shenzhen (CN); Qu Cheng Liu, Shenzhen (CN); and Qiu Ping Chen, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed on Jun. 2, 2021, as Appl. No. 17/337,029.
Application 17/337,029 is a continuation of application No. PCT/CN2020/075467, filed on Feb. 17, 2020.
Claims priority of application No. 201910173224.5 (CN), filed on Mar. 7, 2019.
Prior Publication US 2021/0288819 A1, Sep. 16, 2021
Int. Cl. H04L 9/32 (2006.01); H04L 9/00 (2022.01)
CPC H04L 9/3263 (2013.01) [H04L 9/321 (2013.01); H04L 9/3236 (2013.01); H04L 9/50 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A method for issuing an identity certificate to a blockchain node in a blockchain network, the blockchain node in the blockchain network comprising:
a first terminal;
a second terminal;
a third terminal; and
a certificate authority system comprising a first-tier certificate authority node, a second-tier certificate authority node, and a third-tier certificate authority node;
wherein the method, performed by the certificate authority system, comprises:
issuing a first identity certificate to the first terminal through the first-tier certificate authority node;
receiving a second identity certificate issuance request that is from the first terminal and that is made by using the first identity certificate, wherein the second identity certificate issuance request is generated in response to a registration request transmitted by the second terminal to the first terminal;
issuing a second identity certificate to the first terminal through the second-tier certificate authority node, wherein the first terminal forwards the second identity certificate to the second terminal;
receiving a third identity certificate issuance request that is from the second terminal and that is made by using the second identity certificate, the third identity certificate issuance request being generated in response to a registration request transmitted by the third terminal to the second terminal having the second identity certificate; and
issuing a third identity certificate to the second terminal through the third-tier certificate authority node, wherein the second terminal forwards the third identity certificate to the third terminal.