ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,857, issued on Oct. 7, was assigned to Alipay (Hangzhou) Information Technology Co. Ltd. (Hangzhou, China) and Ant Blockchain Technology (Shanghai) Co. Ltd. (Shanghai).
"Method and apparatus for implementing secure multicast in blockchain network" was invented by Ke Zeng (Hangzhou, China), Chao Zeng (Hangzhou, China) and Lingtao Kong (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and an apparatus for implementing secure multicast in a blockchain network. The method includes: a first blockchain node generates and sends a security group creation message including a security group information structure corresponding to each tar...