Patent ID: 11968307
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processors to perform a method, the method comprising:
sending, by an operator for a global total order broadcast domain, an operation out of band to nodes of participating parties in a partition,
wherein the global total order broadcast domain is a blockchain network with a globally accessible ledger,
wherein the operator controls a first node on the global total order broadcast domain and manages permissions on the global total order broadcast domain;

receiving, by the operator, a certificate and a signature on an operation identifier corresponding to the operation for each of the participating parties;
aggregating, by the operator, the signatures on the operation identifier into a single party packet;
generating a random symmetric encryption key;
sending the random symmetric encryption key to the participating parties;
encrypting the single party packet with the random symmetric encryption key;
generating a pseudo random string as an identifier for the partition by:

calculating a sequence number based on an operator serial number, an upper bounds limit for operations in the partition, and a current operation count for the operator; and
running the sequence number through a pseudo random generator to get the pseudo random string;
recording, by the operator, information for the partition on the global total order broadcast domain,
wherein information for the partition includes the operation identifier, the encrypted single party packet, and the pseudo random string; and, identifying the partition with the pseudo random string.