Invention Grant
- Patent Title: Search and access pattern hiding verifiable searchable encryption for distributed settings with malicious servers
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Application No.: US17127038Application Date: 2020-12-18
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Publication No.: US11645409B2Publication Date: 2023-05-09
- Inventor: Vipin Singh Sehrawat
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Fremont
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Fremont
- Agency: Kagan Binder, PLLC
- Main IPC: G06F21/62
- IPC: G06F21/62 ; G06F21/60 ; H04L9/08 ; G06F21/31

Abstract:
A method for distributed and private symmetric searchable encryption includes receiving encrypted data, creating a search index for one or more servers based on the encrypted data using a distributed point function (DPF), splitting the encrypted data into a number of portions based on the number of servers, and partitioning the servers into two or more groups. The method also includes updating the search index based on the splitting and the partitioning, transmitting the split encrypted data to the servers based on the updated search index, verifying the transmitted data using data not transmitted to the server, and determining, based on the verifying, whether any server deviated from an assigned protocol.
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Information query