Patent ID: 11876891
Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method, comprising:
requesting, in a distributed network including a network node, from a key manager of the distributed network, a public encryption key;
publishing the public key to a blockchain ledger of the distributed network;
receiving from a plurality of other network nodes of the distributed network, localized model parameters, the localized model parameters having been encrypted using the public key, and the localized model parameters having been derived from training a machine learning model common to the network node and the other network nodes using local training data present at each of the other network nodes;
merging the encrypted localized model parameters from each of the other network nodes into a single encrypted merged model parameter;
transmitting the single encrypted merged model parameter to one of the other network nodes, the one of the other network nodes having been elected to act as a decryptor,
receiving, from the decryptor, a decrypted version of the single merged model parameter; and
transmitting the decrypted version of the single merged model parameter to each of the other network nodes for application to refine the common machine learning model at each of the other network nodes.