Framework for Industrial Control System Honeypot Network Traffic Generation

Defending critical infrastructure assets is an important but extremely difficult and expensive task. Historically, decoys have been used very effectively to distract attackers and in some cases convince an attacker to reveal their attack strategy. Several researchers have proposed the use of honeypots to protect programmable logic controllers, specifically those used to support critical infrastructure. However, most of these honeypot designs are static systems that wait for a would-be attacker. To be effective, honeypot decoys need to be as realistic as possible. This paper introduces a proof-of-concept honeypot network traffic generator that mimics genuine control systems. Experiments are conducted using a Siemens APOGEE building automation system for single and dual subnet instantiations. Results indicate that the proposed traffic generator is capable of honeypot integration, traffic matching and routing within the decoy building automation network

Causes and prevalence of traumatic injuries to the permanent incisors of school children aged 10-14 years in Maseru, Lesotho

Magister Scientiae Dentium - MSc(Dent)The aim of this study was to investigate the prevalence, etiology and types of injuries to permanent incisors among schoolchildren aged 10-14 years from Maseru, Lesotho. Upper and lower permanent incisors were examined for dental injuries.South Afric

Design and implementation of automated buffer cycling for applied material (AMAT) chemical vapor deposition (CVD) process producer tool

In the semiconductor manufacturing industry, qualification of the tool is the most important thing to do before the tool is being released to run for production. By doing that, the desired quality and specification of the product is achieved. The tool qualification is need to be done whenever the tool is completed with corrective maintenance or preventive maintenance. The maintenance time of the tool is directly affecting to the quantity of the product output. So the need for the minimum time taken for those corrective maintenance or preventive maintenance is crucial which can lead to more output of products. This project is to design and implementation of automated buffer cycling for Applied Material (AMAT) Chemical Vapor Deposition (CVD) process tool which will reduce time taken and man hours’ requirement. The design was verified and tested with a few tools. And the results were successfully achieved to the requirements. So, the implementation was done across all the tools. Overall, this report is about how the silicon wafers are processed in the chemical vapor deposition (CVD) tools, how the qualification is done before processing the actual wafers as well as how to design and implement according the requirements.Bachelor of Engineering (Electrical and Electronic Engineering

Robust vector quantization for image transmission

Prove the performance improvement of the image quality over the noisy channel using the checksums embedded method.Master of Science (Signal Processing

Generating honeypot traffic for industrial control systems

Part 3: INDUSTRIAL CONTROL SYSTEM SECURITYInternational audienceDefending critical infrastructure assets is an important, but extremely difficult and expensive task. Historically, decoys have been used very effectively to distract attackers and, in some cases, convince attackers to reveal their attack strategies. Several researchers have proposed the use of honeypots to protect programmable logic controllers, specifically those used in the critical infrastructure. However, most of these honeypots are static systems that wait for would-be attackers. To be effective, honeypot decoys need to be as realistic as possible. This chapter introduces a proof-of-concept honeypot network traffic generator that mimics a genuine control system in operation. Experiments conducted using a Siemens APOGEE building automation system for single and dual subnet instantiations indicate that the proposed traffic generator supports honeypot integration, traffic matching and routing in a decoy building automation network

Large dynamic range pressure sensor based on two semicircle-holes microstructured fiber

Abstract This paper presents a sensitive and large dynamic range pressure sensor based on a novel birefringence microstructured optical fiber (MOF) deployed in a Sagnac interferometer configuration. The MOF has two large semicircle holes in the cladding and a rectangular strut with germanium-doped core in the center. The fiber structure permits surrounding pressure to induce large effective index difference between the two polarized modes. The calculated and measured group birefringence of the fiber are 1.49 × 10−4, 1.23 × 10−4, respectively, at the wavelength of 1550 nm. Experimental results shown that the pressure sensitivity of the sensor varied from 45,000 pm/MPa to 50,000 pm/MPa, and minimum detectable pressure of 80 Pa and dynamic range of better than 116 dB could be achieved with the novel fiber sensor. The proposed sensor could be used in harsh environment and is an ideal candidate for downhole applications where high pressure measurement at elevated temperature up to 250 °C is needed