A Privacy-Preserving Data Transmission Scheme Based on Oblivious Transfer and Blockchain Technology in the Smart Healthcare

【Author】 Yang, Huijie; Shen, Jian; Lu, Junqing; Zhou, Tianqi; Xia, Xueya; Ji, Sai

【Source】SECURITY AND COMMUNICATION NETWORKS

【影响因子】1.968

【Abstract】With the development of the Internet of)ings and the demand for telemedicine, the smart healthcare system has attracted much attention in recent years. As a platform for medical data interaction, the smart healthcare system is demanded to ensure the privacy of both the receiver and the sender, as well as the security of data transmission. In this paper, we propose a privacy-preserving data transmission scheme where both secure ciphertext conversion and malicious users identification are supported. In particular, the (OT)(m)(n) protocol is introduced to guarantee the two-way privacy of communication parties. Meanwhile, we adopt proxy reencryption algorithm to support secure ciphertext conversion so as to ensure the confidentiality of data in many-to-many communication pattern. In addition, by taking advantage of the concept of blockchain technology, a novel (OT)(m)(n) protocol is proposed to prevent data from being tampered with and effectively identify malicious users.)eoretical and experimental analyses indicate that the proposed scheme is practical for smart healthcare with high security and efficiency.

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【发表时间】2021 2022-09-03

【收录时间】2022-01-02

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