- 期刊
A Modified Homomorphic Encryption Method for Multiple Keywords Retrieval
摘要
Currently, many data owners choose to outsource the data storage to cloud service providers. Data owners store the local private data with plaintext form in the cloud server. It is difficult to guarantee the data privacy and security. So data owners usually encrypt the local private data and upload it into cloud server. The traditional multi-keyword ciphertext retrieval methods cannot take both accuracy and security into consideration. Therefore, we propose a modified homomorphic encryption method for multiple keywords retrieval in this paper. It can effectively solve the privacy leakage of search keywords problem. The retrieval performance is greatly improved in multi-keyword retrieval process. Experimental results show that this new scheme is more efficient and accurate than other cipher-text retrieval schemes.
延伸閱讀
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