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    Trustworthiness Improvement of Integrated Circuits against Hardware Trojans

    , Ph.D. Dissertation Sharif University of Technology Farajipour Ghohroud, Najmeh (Author) ; Hessabi, Shaahin (Supervisor)
    Abstract
    Most hardware manufacturers outsource the fabrication of their integrated circuits (ICs) to third party foundries in order to reduce the cost of silicon chip fabrication. This increases the vulnerability to malicious activities. Third party foundries may modify the circuit’s design or its physical parameters. These modifications are known as Hardware Trojan Horses (HTHs). An adversary can insert a Trojan in the design to disable and/or destroy a system, or leak information to the adversary. Several Methods are proposed for HTH Detection, and Design for Hardware Trust (DfHT) in the last decade. However, the lack of a comprehensive approach in this area is sensed. Moreover, the previously... 

    A Scan Chain-Based Aging Monitoring Scheme for Detection of Recycled Chips

    , M.Sc. Thesis Sharif University of Technology Ostovar, Atanaz (Author) ; Hesabi, Shahin (Supervisor)
    Abstract
    Today's latest technology integrated circuits are manufactured for a wide range of applications. With the constant increase in the usage rate of integrated circuits, designing a high reliable system is of utmost importance. The avoidance of counterfeit components is a major challenge of hardware security and trust. Counterfeit components cause lower performance and reduced life span. They are of great concern to the manufacturers and consumers of electronic systems, impacting the security and reliability of these systems. If these parts end up in critical applications like medical systems, satellites, aerospace, or power plants, the results could be catastrophic. So far, there are different... 

    FPGA-based protection scheme against hardware trojan horse insertion using dummy logic

    , Article IEEE Embedded Systems Letters ; Volume 7, Issue 2 , 2015 , Pages 46-50 ; 19430663 (ISSN) Khaleghi, B ; Ahari, A ; Asadi, H ; Bayat-Sarmadi, S ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2015
    Abstract
    Hardware trojan horses (HTH) have recently emerged as a major security threat for field-programmable gate arrays (FPGAs). Previous studies to protect FPGAs against HTHs may still leave a considerable amount of logic resources to be misused by malicious attacks. This letter presents a low-level HTH protection scheme for FPGAs by filling the unused resources with the proposed dummy logic. In the proposed scheme, we identify the unused resources at the device layout-level and offer dummy logic cells for different resources. The proposed HTH protection scheme has been applied on Xilinx Virtex devices implementing a set of IWLS benchmarks. The results show that by employing the proposed HTH...