Abstract
With the advancement of modern medicine, human whole genome sequencing technology has become more and more efficient and accurate. Genomic data are characterized by large data volume, privacy, and ease of being tampered with. Genomic data are usually stored in different data centers, and it is not easy to share the data. We propose a blockchain-based dual-verifiable cloud storage solution BBAC with the features of traceability and non-comparability of blockchain. First, we use homomorphic encryption technology to encrypt data and upload it to the cloud to ensure transmission security and data privacy protection. At the same time, the aggregated ciphertext and uploader information is stored on the blockchain to avoid the risk of data tampering by illegal users effectively and enable the traceability of malicious users, realizing double verification of data integrity in the cloud. Security analysis proves BBAC is more secure and reliable than similar schemes.
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Acknowledgement
This work was supported in part by the National Key Research and Development Program of China (No. 2020YFB1805400); in part by the National Natural Science Foundation of China (No. 42071431); in part by the Provincial Key Research and Development Program of Hubei, China (No. 2020BAB101).
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Qin, P., Zhang, T., Fang, C., Wang, L. (2023). BBAC: Blockchain-Based Access Control Scheme for EHRs with Data Sharing Support. In: Yang, X., et al. Advanced Data Mining and Applications. ADMA 2023. Lecture Notes in Computer Science(), vol 14180. Springer, Cham. https://doi.org/10.1007/978-3-031-46677-9_33
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DOI: https://doi.org/10.1007/978-3-031-46677-9_33
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