公开(公告)号：US20240028759A1

公开(公告)日：2024-01-25

申请号：US18478977

申请日：2023-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kun Cheng ,  Liang Guo ,  Jinwei Zhu

IPC: G06F21/62 ,  G06F21/60 ,  G06F21/31

CPC classification number: G06F21/6227 ,  G06F21/602 ,  G06F21/31

Abstract: A database access method and apparatus are disclosed, to ensure data security during interaction between a user and a database, and effectively reduce performance overheads. The method includes: receiving an encrypted data computation request sent by a database kernel, where the encrypted data computation request requests to perform computation on encrypted data of a user, and the database kernel runs in a non-secure execution environment; receiving encrypted data sent by the database kernel, where the encrypted data is all encrypted data in a user query request; performing decryption and computation on the encrypted data in response to the encrypted data computation request, to obtain a computation result; encrypting the computation result to obtain an encrypted computation result; and sending the encrypted computation result to the database kernel.