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@article{204389,
        author = {D.S.V Geethika},
        title = {SECURE SHARING OF CLIENT-ENCRYPTED PERSONAL HEALTH RECORDS VIA PROXY RE-ENCRYPTION},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {13},
        number = {1},
        pages = {2317-2322},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=204389},
        abstract = {Cloud-based health sharing systems are essential for modern e-health and medical collaboration, yet they remain highly sensitive to privacy leakage methods, such as untrusted cloud monitoring and unauthorized key exposure. Because client-side encryption and dynamic access control both focus on protecting health records, recent research has hypothesized that traditional centralized key management might naturally generalize to secure PHR sharing without needing expensive client-side re-encryption or pairing-based cryptography. This study tests that hypothesis using the SeSPHR framework. Within this framework, Setup and Re-encryption Server (SRS) and Web Crypto API architectures were evaluated across both portion-level and file-level sharing scenarios. Standard cryptographic metrics (encryption, re-encryption, and decryption latency) were used to evaluate the performance of the system. These operations were executed on various medical document sizes and tested on realistic healthcare workloads. Our results show that symmetric file encryption scaled solely on file sizes produces linear computational latency. On the other hand, the SRS proxy shows significantly greater execution consistency than local device re-encryption when exposed to changing viewer permissions when explicitly performing key re-wrapping. In the conclusion, this study shows that active key transformation and passive ciphertext storage are really separate concerns that require separate handling.},
        keywords = {Access control, Browser-side Cryptography, Personal health records, Proxy re-encryption.},
        month = {June},
        }