ENCRYPTED INFORMATION RETRIEVAL
    11.
    发明公开

    公开(公告)号:US20240104234A1

    公开(公告)日:2024-03-28

    申请号:US18008554

    申请日:2022-06-14

    Applicant: Google LLC

    CPC classification number: G06F21/6218

    Abstract: Encrypted information retrieval can include generating a database that is partitioned into shards each having a shard identifier, and database entries in each shard that are partitioned into buckets having a bucket identifier. A batch of client-encrypted queries are received. The batch of client-encrypted queries are processed using a set of server-encrypted data stored in a database. The processing includes grouping the client-encrypted queries according to shard identifiers of the client-encrypted queries, executing multiple queries in the group of client-encrypted queries for the shard together in a batch execution process, and generating multiple server-encrypted results to the multiple queries in the group of client-encrypted queries. The multiple server-encrypted results for each shard are transmitted to the client device.

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