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Title SECURE DATA AGGREGATION AND DISSEMINATION USING BATCH KEYING IN INTERNET OF MEDICAL THINGS

Author(s) Javeria Rasheed

Abstract The Internet of Medical Things (IoMT) is a new fastest growing technology that consist of wearable medical sensors to collect patient’s medical data and transmit it to the cloud repository for storage. It enables real time analysis of patient data and allow doctors to take preventive measures accordingly. The security of sensitive medical data is mandatory while transferring it via the Internet. The existing base scheme emphasizes on reducing the transmission costs and maintains the security of IoMT system. The value of the secret key is null at the initial phase while sending data from sensor node (SN) to head node (HN). Due to the null value, the risks of security attacks by intruders are increased. The Proposed Batch Key based Secure Data Aggregation (BK-SDA) scheme focus on minimizing the risks of security attacks and reducing the transmission cost by improving the algorithms. In Batch Key based Secure Data Aggregation at Head Node (BKSDA-HN) algorithm, it chooses a random number for secret key rather than null value at the initial phase. It also applies batch verification on received data to ensure its authenticity and then performs aggregation at HN. On the other Batch Key based Secure Data Extraction at Fog Server (BKSDE-FS) algorithm, the batch verification is also applied on received data before starting the process of data extraction. The BK-SDA scheme is implemented on NS 2.35 simulation tool to check the performance of proposed algorithms. In NS 2.35, the TCL files is used for nodes placement and C++ language to control the functionality of nodes and AWK files to extract results. The performance of BK-SDA is evaluated under three performance evaluation metrics like communication cost, computational cost, and energy consumption cost. The experimental result show that the performance of BK SDA scheme is better than other existing schemes to reduce communication cost and energy consumption cost but it consumes more computational cost as compare to others. The proposed BK-SDA scheme reduce the data transmission costs in terms of communication and energy consumption cost and improve the security algorithm to make the system more efficient and secure for data communication.

Type Thesis/Dissertation MS

Faculty Engineering and Computer Science

Department Computer Science

Language English

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