Abstract
Electronic Health Records (EHRs: digital compilations of patient health status and diagnosis) are typically shared, analyzed, and stored on cloud servers. One operational challenge is to guarantee the accurate storage of EHRs, for instance, by utilizing Provable Data Possession (PDP). When a portion of one hospital’s EHRs needs to be transferred to another, outsourcing the computational costs of data transfer to the cloud and ensuring the integrity of the data transferred off-site becomes a problematic issue. In this article, to tackle these two problems, we put forward a certificateless provable data possession scheme with outsourced data transmission on secure cloud storage. Our scheme achieves the following functions: ensuring the data integrity for the transferred data; only the data owner or the data recipient themselves can verify the integrity of their own remote data; delegating most of the computations to the public cloud server to enable data transferability. Finally, we analyze the security and efficiency of the concrete scheme. The analysis demonstrates that our scheme is demonstrably secure and efficient.
Published Version
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