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712 results on '"Shetty, Sachin"'

216. Robust Certificateless Authentication Protocol for the SAE J1939 Commercial Vehicles Bus

Author

Palaniswamy, Basker, Ansari, Keyvan, Reddy, Alavalapati Goutham, Das, Ashok Kumar, and Shetty, Sachin

Abstract

Authentication for controller area network (CAN) buses in an intra-vehicular network involving electronic control units (ECUs) is a challenging factor. The Society of Automotive Engineers standard (SAE J1939) incorporating the ISO 11898-1 specification for the data link and physical layers of the standard CAN and CAN-flexible data rate (CAN-FD) handles communication among ECUs. The SAE J1939 is vulnerable to replay, masquerading and machine-in-the-middle (MITM) attacks. To prevent such attacks, there exist protocol suites for resource-constrained and resource-unconstrained nodes proposed in the literature which are not formally analysed. We formally analyse one of the comprehensive protocol suites using the state-of-the-art Tamarin automated validation tool. To mitigate the identified attacks, we propose two new authentication protocols. At first, we propose one pass authentication protocol for computationally restricted nodes. For nodes that are not restricted computationally, we present a certificateless signature-based authentication protocol. Additionally, we present a new certificateless key insulated manageable signature (CL-KIMS) scheme for signature-based authentication protocol. CL-KIMS ensures key insulation and random access key update properties, and assures self-healing property. The security of the proposed protocol suite and signature scheme is formally analysed using the random oracle model (ROM). Especially, CL-KIMS scheme is provably secure in the ROM against Type-I and Type-II adversaries. A detailed performance comparison and simulation study show that the proposed protocol suite has lesser communication overhead and ensures robust security as compared to the existing protocol suites.

Published
2023
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217. 6G enabled smart infrastructure for sustainable society

Author

Imoize, Agbotiname Lucky, Adedeji, Oluwadara, Tandiya, Nishta, and Shetty, Sachin (Dr.)

Abstract

The 5G wireless communication network is currently faced with the challenge of limited data speed exacerbated by the proliferation of billions of data-intensive applications. To address this problem, researchers are developing cutting-edge technologies for the envisioned 6G wireless communication standards to satisfy the escalating wireless services demands. Though some of the candidate technologies in the 5G standards will apply to 6G wireless networks, key disruptive technologies that will guarantee the desired quality of physical experience to achieve ubiquitous wireless connectivity are expected in 6G. This article first provides a foundational background on the evolution of different wireless communication standards to have a proper insight into the vision and requirements of 6G. Second, we provide a panoramic view of the enabling technologies proposed to facilitate 6G and introduce emerging 6G applications such as multi-sensory–extended reality, digital replica, and more. Next, the technology-driven challenges, social, psychological, health and commercialization issues posed to actualizing 6G, and the probable solutions to tackle these challenges are discussed extensively. Additionally, we present new use cases of the 6G technology in agriculture, education, media and entertainment, logistics and transportation, and tourism. Furthermore, we discuss the multi-faceted communication capabilities of 6G that will contribute significantly to global sustainability and how 6G will bring about a dramatic change in the business arena. Finally, we highlight the research trends, open research issues, and key take-away lessons for future research exploration in 6G wireless communication.

Published
2021

218. Bilateral Ocular Tuberculosis in a Child with Negative Tuberculin Skin Test (TST): A Diagnostic Dilemma.

Author

Agrawal, Tina, Multani, Priyansha, Shetty, Sachin B., and Sen, Alok

Subjects
TUBERCULIN test, SKIN tests, TUBERCULOSIS, GRAM-negative bacteria, ASYMPTOMATIC patients
Abstract

To report a case of bilateral ocular tuberculosis (OTB) in a child with negative Tuberculin skin test (TST). Case report. A 12-year-old malnourished systemically asymptomatic boy presented with sudden profound loss of vision in both eyes. Dense vitritis precluded fundus visualization in right eye (RE). In left eye, fundus findings of extensive vasculitis associated with multifocal retinochoroiditis were suggestive of OTB. However, negative TST, normal chest X-ray, and gram negative bacteriuria led to confusion between endogenous endophthalmitis and OTB. Based on strong clinical suspicion and high-resolution chest tomography (HRCT) of thorax which was suggestive of TB-pneumonitis, a diagnosis of presumed OTB was made. A good response to anti-tubercular-treatment and corticosteroids, with resolution of retinochoroiditis lesions, vasculitis, and vitritis, further supported our diagnosis. This case highlights the importance of keeping a high index of suspicion for TB-associated uveitis in children, based on clinical findings. [ABSTRACT FROM AUTHOR]

Published
2022
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219. A Proposed Framework for the Governance of Blockchain Technology.

Author

Zhang, Justin, WuHe, Shetty, Sachin, Yuming He, and Xin Tian

Subjects
BLOCKCHAINS, ORGANIZATION management, EVIDENCE gaps, DIGITAL technology, DRIVERS' licenses
Abstract

Despite rapid growth in blockchains, there was limited discussion about non-technical and technical factors on the governance of blockchain in organizations. This paper contributes to the literature by proposing a framework of factors affecting the adoption, governance, and scale-up of blockchain technologies. The factors we identified can be either drivers or obstacles to further blockchain development, depending on the circumstances. Our proposed framework can help researchers identify potential research gaps or concerns on the adoption of blockchain technology as well as its implementation, governance, and assessment in organization. [ABSTRACT FROM AUTHOR]

Published
2022

235. Detection of Rouge Drones based on Radio Frequency Classification

Author

Gosai, Akash V. and Shetty, Sachin

Abstract

The current classification of RF signals from the drone is achieved by leveraging raw signal information of a specific band. The modulation scheme that was found prevailing in commercial drones is Orthogonal Frequency Division Multiplexing (OFDM). OFDM can demodulated to provide information about a raw drone signal. This extracted data is coupled with a machine learning algorithm that is used to classify the signal. Testing of this research is needed to identify better equipment and an optimized test scenario that captures quality data that can be used to train a machine learning algorithm.

Published
2020
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243. Klebsiella Cluster Endophthalmitis following Intravitreal Bevacizumab: Role of Early Detection, Pars Plana Vitrectomy, and Intracameral Moxifloxacin.

Author

Kohli, Gaurav Mohan, Shenoy, Pratik, Malhotra, Pawan Puneet, Tripathi, Shubhi, Shetty, Sachin, and Sen, Alok

Abstract

To report the clinical profile, outcomes of early vitrectomy for cluster endophthalmitis developing after intravitreal Bevacizumab (IVB), and discuss the role of prophylactic intracameral moxifloxacin for eyes undergoing combined cataract surgery with IVB. Single center, retrospective analysis of 35 consecutive eyes developing post-IVB inflammation. Of the 35 eyes that were administered IVB (27 eyes 'IVB alone' and 8 eyes 'IVB with cataract surgery'). Endophthalmitis developed in 28 eyes, 6 eyes were managed with Intravitreal antibiotic (IVAB) alone, while 22 eyes required early vitrectomy. Only one eye undergoing a combined phacoemulsification with IVB developed endophthalmitis. Majority(26/28) of the eyes achieved visual acuity equal to/greater than pre-IVB injection vision over a period of 3.15 ± 3.2 months. Early detection and prompt PPV were effectual for achieving good functional outcomes in our cluster of post-IVB Klebsiella endophthalmitis. Intracameral moxifloxacin was protective in cases undergoing combined cataract surgery with IVB. [ABSTRACT FROM AUTHOR]

Published
2022
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