Security of the data transmission in the industrial control system
Journal Title: Bulletin of the Military University of Technology - Year 2015, Vol 64, Issue 4
Abstract
The theme of this paper is to present the data transmission security system between the stations of the industrial control system. The possible options for secure communications between process stations, as well as between process and operator station are described. Transmission security mechanism is based on algorithms for symmetric and asymmetric encryption. The authentication process uses a software token algorithm and a one-way hash function. The algorithm for establishing a secured connection between the stations, including the authentication process and encryption of data transmission is given. The process of securing the transmission consists of 4 sub-processes: (I) authentication; (II) asymmetric, public keys transmission; (III) symmetric key transmission; (IV) data transmission. The presented process of securing the transmission was realized in the industrial controller and emulator. For this purpose, programming languages in accordance with EN 61131 were used. The functions were implemented as user function blocks. This allows us to include a mixed code in the structure of the block (both: ST and FBD). Available function categories: support of the asymmetric encryption; asymmetric encryption utility functions; support of the symmetric encryption; symmetric encryption utility functions; support of the hash value calculations; utility functions of conversion.[b]Keywords[/b]: transmission security, encryption, authentication, industrial control system
Authors and Affiliations
Marcin Bednarek, Tadeusz Dąbrowski
Keywords
Related Articles
- EP ID EP77479
- DOI 10.5604/12345865.1186229
- Views 81
- Downloads 0
Analysis of influence of random distribution of assembly clearance on deflection and load capacity of folding beams
The article includes the analysis of influence of random distribution of assembly clearance of various sizes on deflections and the load capacity of the folding beam based on fixed supports. This analysis includes seven...
Diagnostics of low-capacity solar power station equipment with 2- and 3-valued logic
The paper outlines research issues relating to 2- and 3-valued logic diagnoses developed with the diagnostic system (DIA G 2) for the equipment installed at a low-capacity solar power station. The presentation is facilit...
Analiza stateczności prętów stalowych poddanych działaniu obciążenia uderzeniowego
W artykule przedstawiono wyniki analizy numerycznej reakcji sprężysto-plastycznej prętów ściskanych ze wstępną deformacją trwałą ich osi podłużnych pod działaniem wzdłużnego, nieusuwalnego obciążenia uderzeniowego. Rozpa...
Diagnosis of technical parameters of amplifiers used in sound warning systems
The article presents a method of diagnosing the technical conditions of a power amplifier which is used in a sound warning system (SWS). Fire Alarm Systems (FAS) and SWSs are electronic safety systems designed to protect...
Stabilny sterownik półprzewodnikowych laserowych diod impulsowych dla dalmierza laserowego
W artykule przedstawiono podstawowe metody sterowania impulsowymi diodamilaserowymi stosowanymi w układach nadajników dalmierzy laserowych wraz ze wskazaniem ich wadi zalet. Na podstawie tej analizy zaproponowano układ s...