A Searchable Encryption Method Supporting Dynamic Update and Multi-keyword Secure Sorting
A multi-keyword, encryption method technology, applied in the field of network information security, can solve the problems of not supporting the sorting of search results, unable to meet user search needs, low efficiency, etc., to achieve the effect of solving the problem of dynamic update
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[0036] A non-limiting embodiment is given below in conjunction with the accompanying drawings to further illustrate the present invention. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention. The searchable encryption method supporting dynamic update and multi-keyword security sorting of the present invention comprises the following steps:
[0037] (1) Initialization
[0038] After the algorithm is initialized, public parameters and keys are generated.
[0039] (2) Generate an unencrypted index
[0040] 2a) According to the keywords of each file in the collection, a dictionary is established, and the dictionary is a collection of keywords after deduplication of all files.
[0041] 2b) According to the keyword of the dictio...
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