Protecting cloud-based personal health records (PHRs) is critical to- ensuring privacy and data security for individuals in an era of rapidly growing digital healthcare systems. Traditional encryption methods face challenges in balancing computational efficiency with robust data protection. Proxy-based certificateless cryptography offers a promising solution by eliminating the need for certificate management while enabling seamless secure communication. In this work, a Proxy-Encryption Based Rabin Certificateless Signcryption (PERSC) scheme is proposed to enhance the security and efficiency of cloud-stored PHRs. The proposed method integrates proxy encryption with Rabin-based certificateless cryptography, leveraging its quadratic residue properties to secure key exchanges. A hybrid signcryption mechanism ensures data integrity and confidentiality while providing resistance against various attacks, including man-in-the-middle and key exposure attacks. This approach minimizes computational overhead, particularly on resource-constrained devices. Experimental results demonstrate that PERSC reduces encryption time by 38% compared to traditional certificateless cryptographic methods and achieves a 98.5% success rate in preventing unauthorized access. Additionally, PERSC’s decryption latency is reduced by 30%, making it suiTable.for real-time applications in cloud environments. The proposed framework ensures a balance between performance and security while providing a scalable solution for managing sensitive PHR data in the cloud. These findings underscore the feasibility of adopting advanced cryptographic techniques for cloud-based healthcare systems to meet increasing demands for secure and efficient data sharing.
J. Mala
Sri Ramakrishna Institute of Technology, India
Cloud Data Protection, Personal Health Records, Rabin Certificateless Cryptography, Proxy Encryption, Signcryption
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| Published By :
ICTACT
Published In :
ICTACT Journal on Communication Technology
( Volume: 15 , Issue: 4 , Pages: 3325 - 3331 )
Date of Publication :
December 2024
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