@article{MA84C42AE,
title = "A Study on the Blockchain-Based Access Control
Using Random-List in Industrial Control System",
journal = "The Transactions of the Korea Information Processing Society",
year = "2022",
issn = "null",
doi = "https://doi.org/10.3745/KTCCS.2022.11.5.147",
author = "Kang Myung Joe/Kim Mi Hui",
keywords = "Blockchain, Smart Contract, Industrial Control System, Access Control",
abstract = "Industrial control systems that manage and maintain various industries were mainly operated in closed environment without external
connection, but with the recent development of the Internet and the introduction of ICT technology, the access to the industrial control
system of external or attackers has become easier. Such incorrect approaches or attacks can undermine the availability, a major attribute
of the industrial control system, and violation of availability can cause great damage. In this paper, when issuing commands in an industrial
control system, a verification group is formed using a random list to verify and execute commands, and a trust score technique is introduced
that applies feedback to the verification group that conducted verification using the command execution result. This technique can reduce
overhead generated by random generation in the process of requesting command verification, give flexibility to the verification process,
and ensure system availability. For the performance analysis of the system, we measured the time and gas usage when deploying a smart
contract, gas usage when verifying a command. As a result, we confirmed that although the proposed system generates a random list
compared to the legacy system, there was little difference in the time when it took to deploy smart contract and that the gas used to
deploy smart contract increased by about 1.4 times in the process of generating a random list. However, the proposed system does not
perform random operations even though the operation of command verification and confidence score technique is performed together
during the command verification process, thus it uses about 9% less gas per verification, which ensures availability in the verification process."
}