Achieving confidentiality in electronic health records using cloud systems

Автор: Robert French-Baidoo, Dominic Asamoah, Stephen Opoku Oppong

Журнал: International Journal of Computer Network and Information Security @ijcnis

Статья в выпуске: 1 vol.10, 2018 года.

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Currently, existing methods for enforcing access to records in an Electronic Health Record system relies on a single Trusted Server which stores health records and mediates access. Such Trusted Severs employ either a Ciphertext-Policy Attribute-Based Encryption (CP-ABE) or Key-Policy Attribute-Based Encryption (KP-ABE) method for storing and controlling access. However, Trusted Server storage of health records is susceptible to single-point-of-threat attack and a successful attack invariably leads to compromising the integrity of records on the server. In this research work. This paper presents a methodology that defines and creates simple Access Structures and eliminates need for private keys during encryption and/or decryption of health records which is the Enhanced Ciphertext-Policy Attribute-Based Encryption (ECP-ABE). The ECP-ABE yields high cryptographic performance creates simple Access Structures, eliminates need for private keys and presents an implementation architecture that makes cloud-based EHR system secure and confidential. The ECP-ABE also performs cryptographic functions using less CPU time, minimal computer memory and produces high encryption and decryption throughput especially with increasing file sizes.

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Trusted Authority, Advance Encryption System 256, Secure Hashing Algorithm 256, Virtual Electronic Medical Records, Public Key Infrastructure, Public Key Generator, Random Access Memory

Короткий адрес: https://sciup.org/15015567

IDR: 15015567   |   DOI: 10.5815/ijcnis.2018.01.03

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