Mutual authentication with pseudo random numbers

    公开(公告)号:US11895251B2

    公开(公告)日:2024-02-06

    申请号:US17025111

    申请日:2020-09-18

    申请人: ASSA ABLOY AB

    IPC分类号: H04L9/32 H04L9/08

    摘要: A verifier device of an authentication system comprises physical layer circuitry and processing circuitry coupled to the physical layer circuitry. The processing circuitry is configured to encode an authentication command for sending to a credential device; decode a response communication received from the credential device, wherein the response communication includes a first random number; encrypt the first random number, a second random number, and verifier keying material for sending to the credential device; decrypt encrypted information received from the credential device, wherein the encrypted information includes the first random number, the second random number, and receiver keying material; and calculate a session encryption key using the verifier keying material and the receiver keying material.

    Wearable device with multibiometry
    12.
    发明授权

    公开(公告)号:US11887459B2

    公开(公告)日:2024-01-30

    申请号:US18101874

    申请日:2023-01-26

    申请人: ASSA ABLOY AB

    发明人: Peter Stenlund

    摘要: It is provided a wearable device for determining when a user has fallen down. The wearable device comprises: a first biometric sensor for obtaining first biometric data of the user, wherein the first biometric sensor is a first accelerometer configured to measure acceleration of a part of a first limb of the user; a second biometric sensor for obtaining second biometric data of the user comprising a finger pressure parameter; and a third biometric sensor for obtaining third biometric data, the third biometric sensor being a second accelerometer configured to measure acceleration of a body part of the user being distinct from the first limb. The wearable device is configured to determine an identity of the user is based on the first biometric data, the second biometric data and the third biometric data, the identity being used to control access to a physical space, and to determine when the user has fallen down.

    Protecting data from brute force attack

    公开(公告)号:US11874935B2

    公开(公告)日:2024-01-16

    申请号:US17064922

    申请日:2020-10-07

    申请人: ASSA ABLOY AB

    摘要: Securely storing data includes encrypting the data using a random key to provide obfuscated data, scrambling the obfuscated data to provide scrambled obfuscated data, generating a scramble schema indicating how to unscramble the scrambled obfuscated data, encrypting the scrambled obfuscated data to provide encrypted scrambled obfuscated data, splitting the scramble schema, and distributing separate portions of the scramble schema and separate portions of the encrypted scrambled obfuscated data to separate entities. The data may be private key data. Securely storing data may also include concatenating the random key on to the obfuscated data prior to scrambling the obfuscated data, wherein the random key is scrambled together with the obfuscated data. Scrambling the obfuscated data may use a Fisher Yates Shuffle mechanism. Securely storing data may also include generating and distributing a symmetric authentication key that is used to authenticate a first entity to a second entity.

    Emergency delegation
    16.
    发明授权

    公开(公告)号:US11790717B2

    公开(公告)日:2023-10-17

    申请号:US17298259

    申请日:2019-12-17

    申请人: ASSA ABLOY AB

    摘要: It is provided a method for controlling access to a physical space using an emergency 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 wherein when two delegations are chained together, the delegatee of one delegation is the delegator of the next delegation; determining that a delegation in the chain of delegations is an emergency delegation, the emergency delegation indicating that access should only be granted when an emergency situation occurs; determining when an emergency situation occurs; and granting access to the physical space when the chain of delegations starts in the lock device and ends in the electronic key; and when the emergency situation occurs.

    SYSTEM AND METHOD FOR MAINTAINING USAGE RECORDS IN A SHARED COMPUTING ENVIRONMENT

    公开(公告)号:US20230327879A1

    公开(公告)日:2023-10-12

    申请号:US18334584

    申请日:2023-06-14

    申请人: ASSA ABLOY AB

    摘要: A method for maintaining a log of events in a shared computing environment is provided. One example of the disclosed method includes receiving one or more data streams from the shared computing environment that include transactions conducted in the shared computing environment by a first entity and a second entity that is different from the first entity. The method further includes creating a first blockchain entry for a first transaction conducted in the shared computing environment for the first entity, creating a second blockchain entry for a second transaction conducted in the shared computing environment for the second entity, where the second blockchain entry includes a signature that points to the first blockchain entry, and then causing the first and second blockchain entries to be written to a common blockchain data structure in a database that is made accessible to both the first entity and the second entity.

    ARRANGEMENT FOR LOCK DEVICE, AND LOCK DEVICE COMPRISING ARRANGEMENT

    公开(公告)号:US20230323702A1

    公开(公告)日:2023-10-12

    申请号:US18022941

    申请日:2021-08-25

    申请人: ASSA ABLOY AB

    发明人: Johan VON MATERN

    IPC分类号: E05B47/00 E05B47/06 E05B15/04

    摘要: An arrangement (10) for a lock device (88a, 88b), the arrangement (10) comprising an input member (12, 106); a coupling member (26) movable between an uncoupled position (34) and a coupled position (80); an electromechanical actuator (28) comprising an actuating member (42) linearly movable between an uncoupling actuating position (44) and a coupling actuating position (78); and a torsion spring (30) having a first leg (62) and a second leg (64) movable away from each other against a deformation of the torsion spring (30), wherein the actuating member (42) is arranged to engage the first leg (62) and the second leg (64) is arranged to engage the coupling member (26) when the coupling member (26) is in the uncoupled position (34) and the actuating member (42) moves from the uncoupling actuating position (44) to the coupling actuating position (78). A lock device (88a, 88b) comprising an arrangement (10) is also provided.