CO-SIGNING DELEGATIONS
    13.
    发明公开

    公开(公告)号:US20230169812A1

    公开(公告)日:2023-06-01

    申请号:US18101823

    申请日:2023-01-26

    Applicant: ASSA ABLOY AB

    Inventor: Frans LUNDBERG

    CPC classification number: G07C9/215 G07C9/00309 H04L9/3247 G07C2009/00428

    Abstract: It is provided a method for controlling access to a physical space using a co-sign delegation. The method is performed in a lock device and comprises the steps of: receiving an access request from an electronic key; obtaining a plurality of delegations, wherein each delegation is a delegation from a delegator to a delegatee, the plurality of delegations collectively forming a chain of delegations; determining that a delegation is a co-sign delegation, indicating that all further delegations need to be cryptographically signed by both the delegator of the respective delegation and by an access controller; and granting access to the physical space when the chain of delegations start in an owner of the lock device and ends in the electronic key; and when all delegations in the chain of delegations after the co-sign delegation are cryptographically signed by both the delegator of the respective delegation and by the access controller.

    CO-SIGNING DELEGATIONS
    15.
    发明公开

    公开(公告)号:US20240021035A1

    公开(公告)日:2024-01-18

    申请号:US18476732

    申请日:2023-09-28

    Applicant: ASSA ABLOY AB

    Inventor: Frans Lundberg

    CPC classification number: G07C9/215 G07C9/00309 H04L9/3247 G07C2009/00428

    Abstract: It is provided a method for controlling access to a physical space using a co-sign delegation. The method is performed in a lock device and comprises the steps of: receiving an access request from an electronic key; obtaining a plurality of delegations, wherein each delegation is a delegation from a delegator to a delegatee, the plurality of delegations collectively forming a chain of delegations; determining that a delegation is a co-sign delegation, indicating that all further delegations need to be cryptographically signed by both the delegator of the respective delegation and by an access controller; and granting access to the physical space when the chain of delegations start in an owner of the lock device and ends in the electronic key; and when all delegations in the chain of delegations after the co-sign delegation are cryptographically signed by both the delegator of the respective delegation and by the access controller.

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