Visible to the public Biblio

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2019-08-05
Headrick, W. J., Dlugosz, A., Rajcok, P..  2018.  Information Assurance in modern ATE. 2018 IEEE AUTOTESTCON. :1–4.

For modern Automatic Test Equipment (ATE) one of the most daunting tasks is now Information Assurance (IA). What was once at most a secondary item consisting mainly of installing an Anti-Virus suite is now becoming one of the most important aspects of ATE. Given the current climate of IA it has become important to ensure ATE is kept safe from any breaches of security or loss of information. Even though most ATE are not on the Internet (or even on a network for many) they are still vulnerable to some of the same attack vectors plaguing common computers and other electronic devices. This paper will discuss some of the processes and procedures which must be used to ensure that modern ATE can continue to be used to test and detect faults in the systems they are designed to test. The common items that must be considered for ATE are as follows: The ATE system must have some form of Anti-Virus (as should all computers). The ATE system should have a minimum software footprint only providing the software needed to perform the task. The ATE system should be verified to have all the Operating System (OS) settings configured pursuant to the task it is intended to perform. The ATE OS settings should include password and password expiration settings to prevent access by anyone not expected to be on the system. The ATE system software should be written and constructed such that it in itself is not readily open to attack. The ATE system should be designed in a manner such that none of the instruments in the system can easily be attacked. The ATE system should insure any paths to the outside world (such as Ethernet or USB devices) are limited to only those required to perform the task it was designed for. These and many other common configuration concerns will be discussed in the paper.

2018-06-11
Armstrong, D., Nasri, B., Karri, R., Shahrjerdi, D..  2017.  Hybrid silicon CMOS-carbon nanotube physically unclonable functions. 2017 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S). :1–3.

Physically unclonable functions (PUFs) are used to uniquely identify electronic devices. Here, we introduce a hybrid silicon CMOS-nanotube PUF circuit that uses the variations of nanotube transistors to generate a random response. An analog silicon circuit subsequently converts the nanotube response to zero or one bits. We fabricate an array of nanotube transistors to study and model their device variability. The behavior of the hybrid CMOS-nanotube PUF is then simulated. The parameters of the analog circuit are tuned to achieve the desired normalized Hamming inter-distance of 0.5. The co-design of the nanotube array and the silicon CMOS is an attractive feature for increasing the immunity of the hybrid PUF against an unauthorized duplication. The heterogeneous integration of nanotubes with silicon CMOS offers a new strategy for realizing security tokens that are strong, low-cost, and reliable.

2017-11-27
Pandey, R. K., Misra, M..  2016.  Cyber security threats \#x2014; Smart grid infrastructure. 2016 National Power Systems Conference (NPSC). :1–6.

Smart grid is an evolving new power system framework with ICT driven power equipment massively layered structure. The new generation sensors, smart meters and electronic devices are integral components of smart grid. However, the upcoming deployment of smart devices at different layers followed by their integration with communication networks may introduce cyber threats. The interdependencies of various subsystems functioning in the smart grid, if affected by cyber-attack, may be vulnerable and greatly reduce efficiency and reliability due to any one of the device not responding in real time frame. The cyber security vulnerabilities become even more evident due to the existing superannuated cyber infrastructure. This paper presents a critical review on expected cyber security threats in complex environment and addresses the grave concern of a secure cyber infrastructure and related developments. An extensive review on the cyber security objectives and requirements along with the risk evaluation process has been undertaken. The paper analyses confidentiality and privacy issues of entire components of smart power system. A critical evaluation on upcoming challenges with innovative research concerns is highlighted to achieve a roadmap of an immune smart grid infrastructure. This will further facilitate R&d; associated developments.

2017-04-20
Wakchaure, M., Sarwade, S., Siddavatam, I..  2016.  Reconnaissance of Industrial Control System by deep packet inspection. 2016 IEEE International Conference on Engineering and Technology (ICETECH). :1093–1096.

Industrial Control System (ICS) consists of large number of electronic devices connected to field devices to execute the physical processes. Communication network of ICS supports wide range of packet based applications. A growing issue with network security and its impact on ICS have highlighted some fundamental risks to critical infrastructure. To address network security issues for ICS a clear understanding of security specific defensive countermeasures is required. Reconnaissance of ICS network by deep packet inspection (DPI) consists analysis of the contents of the captured packets in order to get accurate measures of process that uses specific countermeasure to create an aggregated posture. In this paper we focus on novel approach by presenting a technique with captured network traffic. This technique is capable to identify the protocols and extract different features for classification of traffic based on network protocol, header information and payload to understand the whole architecture of complex system. Here we have segregated possible types of attacks on ICS.