Systems and methods for data access authentication using searchable encryption
US10951708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Mar 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer implemented method of a network connected data storage system, the method including receiving, via the network, and storing a data set including a plurality of data items encrypted using an index-based searchable encryption scheme, wherein the searchable encryption scheme has associated a server index and a client index; receiving, via the network, and storing a set of hashed information for each of a plurality of queries of the data set, each item of hashed information including a hash of a query and a hash of an expected result of executing the query using the server index; receiving, via the network, a query from a data requester to retrieve a set of data items from the data store and a hash of an expected result of executing the received query using the server index; generating a result of the received query for the data set based on the server index; and responsive to a comparison of a hash of the generated result, the received hash of the expected result, and the hashes of expected results in the set of hashed information, granting access for the requester to the data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.