Multi-keyword plaintext and ciphertext retrieving method and device oriented to cloud storage
A keyword and cloud storage technology, applied in the field of information security, can solve problems such as insecure key management schemes, low execution efficiency, and destroying data sequence relationships, achieving high retrieval efficiency and accuracy, increasing user experience, and security high effect
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[0070] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of the present invention is not limited in any way.
[0071] In an embodiment of the present invention, it is a cloud storage-oriented multi-keyword plaintext retrieval system, which includes: a cloud storage server and several clients, and the clients communicate with the cloud storage server through the network Connection; it can be connected through traditional Internet and mobile Internet, or through local area network and wide area network;
[0072] The client includes user management components, encryption and decryption components, key management components, client metadata management components, client ciphertext index creation components, client plain ciphertext query components, file preprocessing components and word segmentation components, each of which The function description is as follows:
[0073] 1) The u...
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