公开(公告)号：US20190297101A1

公开(公告)日：2019-09-26

申请号：US15927617

申请日：2018-03-21

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Chandirasekaran Dhakshinamoorthy ,  Basavaraju Vasamurthy ,  Rod Stein

IPC: H04L29/06 ,  G06F21/62 ,  G06N99/00

Abstract: A method of securing data in an industrial processing facility (IPF) includes creating a private blockchain (PB) using a OPC UA standard functionality and storing the PB in an OPC UA address space adding it to an OPC UA communication protocol framework including edge-nodes coupled to a cloud-based or edge-located data storage. The edge-nodes are PB participant nodes, and a regulator or leader assigns them a single role as a blockmaker, block voter, or observer. The hash in the public ledger is updated once a new block is validated by a majority of the block voters, and the new block is propagated to all PB participant nodes. The regulator, leader or observer utilizes a time bound majority voting consensus to determine whether the PB participant nodes come to a consensus on a current state in the storage medium, and if a consensus the new block added to the public ledger.

公开(公告)号：US10819722B2

公开(公告)日：2020-10-27

申请号：US15927617

申请日：2018-03-21

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Chandirasekaran Dhakshinamoorthy ,  Basavaraju Vasamurthy ,  Rod Stein

IPC: H04L29/06 ,  G06F21/62 ,  G06N20/00

Abstract: A method of securing data in an industrial processing facility (IPF) includes creating a private blockchain (PB) using a OPC UA standard functionality and storing the PB in an OPC UA address space adding it to an OPC UA communication protocol framework including edge-nodes coupled to a cloud-based or edge-located data storage. The edge-nodes are PB participant nodes, and a regulator or leader assigns them a single role as a blockmaker, block voter, or observer. The hash in the public ledger is updated once a new block is validated by a majority of the block voters, and the new block is propagated to all PB participant nodes. The regulator, leader or observer utilizes a time bound majority voting consensus to determine whether the PB participant nodes come to a consensus on a current state in the storage medium, and if a consensus the new block added to the public ledger.