A Practical Searchable Symmetric Encryption Scheme for Smart Grid Data
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Outsourcing data storage to remote cloud can be an economical solution to enhance data management in smart grid ecosystem. To protect the privacy of data, the utility company may choose to encrypt the data before uploading them to the cloud. However, while encryption provides confidentiality to data, it also sacrifices the data owners' ability to query special segment in their data. Searchable symmetric encryption is a technology that enables user to store document in ciphertext form while keeping the functionality to search keywords in the documents. However, most state-of-the-art SSE algorithms are only focusing on general document storage, which may become unsuitable when applying them to smart grid applications. In this paper, we propose a simple, practical SSE scheme that aims to protect the privacy of data generated in smart gird. We also implement a prototype over the statistical data of advanced meter infrastructure to show the effectiveness of our approach.
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