Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 23, 2022
Patent Application Number
17408851
Date Filed
August 23, 2021
Patent Citations
Patent Citations Received
Patent Primary Examiner
An encrypted search uses hash vectorization (HV) models, which are secure, one-way hash indices that are produced by a compression process, such as a modeling phase of Lempel-Ziv (LZ) parsing. Each HV model includes a hash filter and a chain vector. The hash filter is a Boolean quotient filter similar to Bloom filters, and allows for the quick elimination of negative query assessments. The hash filter is followed by a chain vector, which provides spatial modeling of hashed elements throughout the compressed and encrypted data, thereby providing increased levels of accuracy, efficiency, and query expressiveness as compared with known techniques.
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