01-07-2021 дата публикации
Номер: US20210203657A1
Принадлежит:
SafeNet, Inc.
A set of users who may authenticate is predefined and is associated, each, with a reference secret share. A first subset of users who has, each, to authenticate is predefined. The device defines a second subset of the users who has, each, to authenticate while further satisfying, each, to be physically proximate to the device and an authentication condition(s). The second user subset is comprised within the first user subset comprised within the user set. The device verifies whether each user of the second user subset satisfies to be physically proximate to the device and the authentication condition(s), if yes, requests, to each user device, the secret share and receives, from each user device relating to at least the first user subset, the secret share. The device reconstructs a secret with each received secret share, verifies whether the reconstructed matches the reference and, if yes, authenticates the user set. 1. A method for authenticating a set of at least two users to a device , wherein , the set of the at least two users who may authenticate being predefined , each user of the user set being associated with a predefined share of a predetermined reference secret , a first subset of the at least two users who has , each , to authenticate being predefined , the first user subset being comprised within the user set , the method comprises:defining, by the device, a second subset of the at least two users who has, each, to authenticate while further satisfying, each, to be physically proximate to the device and at least one predetermined first authentication condition, the second user subset being comprised within the first user subset;verifying, by the device, whether each user of the second user subset does or does not satisfy to be physically proximate to the device and the at least one first authentication condition;requesting, by the device, to each user device relating to the user set, the associated secret share, only if each user of the second user ...
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