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- W4221143487 abstract "To fight against infectious diseases (e.g., SARS, COVID-19, Ebola, etc.), government agencies, technology companies and health institutes have launched various contact tracing approaches to identify and notify the people exposed to infection sources. However, existing tracing approaches can lead to severe privacy and security concerns, thereby preventing their secure and widespread use among communities. To tackle these problems, this paper proposes <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>CoAvoid</monospace> , an edge-based, privacy-preserved contact tracing system that features good dependability and usability. <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>CoAvoid</monospace> leverages the Google/Apple Exposure Notification (GAEN) API to achieve decent device compatibility and operating efficiency. It utilizes Bluetooth Low Energy (BLE) to detect close contact with other people and leverages GPS with fine-grained matching algorithms to verify user information. In addition, to enhance privacy protection, <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>CoAvoid</monospace> applies fuzzification and obfuscation measures to shelter sensitive data, making both servers and users agnostic to information of both low and high-risk populations. The evaluation demonstrates good efficacy and security of CoAvoid. Compared with four state-of-the-art contact tracing applications, <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>CoAvoid</monospace> can reduce the size of upload data by at least 90% and reduce the verification time by 92%. More importantly, <monospace xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>CoAvoid</monospace> can preserve user privacy and resist replay and wormhole attacks in all analysis scenarios." @default.
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- W4221143487 date "2022-11-01" @default.
- W4221143487 modified "2023-09-25" @default.
- W4221143487 title "CoAvoid: Secure, Privacy-Preserved Tracing of Contacts for Infectious Diseases" @default.
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- W4221143487 doi "https://doi.org/10.1109/jsac.2022.3211547" @default.
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