Method and device for comparing movement paths based on homomorphic encryption

    公开(公告)号:US11750365B2

    公开(公告)日:2023-09-05

    申请号:US17341824

    申请日:2021-06-08

    CPC classification number: H04L9/008 G06F21/6218 G06F21/6245

    Abstract: A method and device for comparing movement paths based on homomorphic encrypted is disclosed, where a server includes a processor configured to collect first encrypted movement path information of a comparison target encrypted by a common key, receive, from a user device, second encrypted movement path information of a user of the user device encrypted by a private key, compare the first encrypted movement path information and the second encrypted movement path information, decrypt a portion of a result of the comparison by the common key to generate a partially decrypted comparison result, and provide the partially decrypted result of the comparison to the user.

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