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公开(公告)号：US20240396731A1
公开(公告)日：2024-11-28
申请号：US18670151
申请日：2024-05-21
Applicant: Apple Inc.
Inventor： Paul A. Baker , Michael W. Murphy , Mark P. Colosky , James E. Zmuda , Jangwon Lee , Kevin C. Gotze , Peter Louis Bielawski
IPC: H04L9/32
Abstract: Various techniques related to authenticating and verifying the integrity of data received by a computer system from an external source (such as a sensor) are disclosed. Hardware circuits are disclosed that, along with the computer processor, allow for error-checking and authentication of data received by the computer system. For instance, the hardware circuits may generate a separate authentication code that can be compared to the authentication code in the data itself to determine whether or not the message is authentic and whether or not there is an error in the data. The disclosed techniques reduce the processing requirements of a computer system and can be implemented using simple hardware circuit designs.
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公开(公告)号：US20230093992A1
公开(公告)日：2023-03-30
申请号：US17934642
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Birju N. Shah , James E. Zmuda , Jangwon Lee
Abstract: Securely communicating traffic between control units interconnected by a network. An electronic control unit (ECU) receives a signed manifest identifying public keys for a group of ECUs authorized to communicate over the network. The ECU performs an authentication exchange with the ECUs in the group. The authentication exchange uses public keys identified in the manifest. Based on the authentication exchange, the ECU distributes a group key to authenticated ones of the ECUs that communicate messages authenticated using the group key.
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公开(公告)号：US12015710B2
公开(公告)日：2024-06-18
申请号：US17374456
申请日：2021-07-13
Applicant: Apple Inc.
Inventor： Paul A. Baker , Michael W. Murphy , Mark P. Colosky , James E. Zmuda , Jangwon Lee , Kevin C. Gotze , Peter Louis Bielawski
IPC: H04L9/32
CPC classification number: H04L9/32
Abstract: Various techniques related to authenticating and verifying the integrity of data received by a computer system from an external source (such as a sensor) are disclosed. Hardware circuits are disclosed that, along with the computer processor, allow for error-checking and authentication of data received by the computer system. For instance, the hardware circuits may generate a separate authentication code that can be compared to the authentication code in the data itself to determine whether or not the message is authentic and whether or not there is an error in the data. The disclosed techniques reduce the processing requirements of a computer system and can be implemented using simple hardware circuit designs.
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Patent Agency Ranking
公开(公告)号：US20230028255A1
公开(公告)日：2023-01-26
申请号：US17937659
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Birju N. Shah , Tristan F. Schaap , James E. Zmuda , Manfred von Willich
Abstract: Techniques are disclosed relating to time synchronization in a network. In some embodiments, an apparatus includes a first circuit having a first clock configured to maintain a local time value for a node coupled to a network. The first circuit is configured to send a first message to a second circuit. The first message includes a first nonce. The second circuit has a second clock that maintains a reference time value for the network. The first circuit receives a second message from the second circuit, the second message including a second nonce and is associated with a timestamp identifying the reference time value. The first circuit compares the first nonce to the second nonce to determine whether the timestamp is valid and, in response to determining that the timestamp is valid, uses the timestamp to synchronize the first clock with the second clock.
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公开(公告)号：US20230019372A1
公开(公告)日：2023-01-19
申请号：US17374456
申请日：2021-07-13
Applicant: Apple Inc.
Inventor： Paul A. Baker , Michael W. Murphy , Mark P. Colosky , James E. Zmuda , Jangwon Lee , Kevin C. Gotze , Peter Louis Bielawski
Abstract: Various techniques related to authenticating and verifying the integrity of data received by a computer system from an external source (such as a sensor) are disclosed. Hardware circuits are disclosed that, along with the computer processor, allow for error-checking and authentication of data received by the computer system. For instance, the hardware circuits may generate a separate authentication code that can be compared to the authentication code in the data itself to determine whether or not the message is authentic and whether or not there is an error in the data. The disclosed techniques reduce the processing requirements of a computer system and can be implemented using simple hardware circuit designs.
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公开(公告)号：US20190245690A1
公开(公告)日：2019-08-08
申请号：US16329743
申请日：2017-09-08
Applicant: Apple Inc.
Inventor： Birju N. Shah , Tristan F. Schaap , James E. Zmuda , Manfred von Willich
CPC classification number: H04L9/12 , G06F21/64 , G06F2221/2151 , H04J3/0667 , H04L9/00 , H04L9/3234 , H04L9/3242 , H04L63/00 , H04L63/123 , H04L2209/12
Abstract: Techniques are disclosed relating to time synchronization in a network. In some embodiments, an apparatus includes a first circuit having a first clock configured to maintain a local time value for a node coupled to a network. The first circuit is configured to send a first message to a second circuit. The first message includes a first nonce. The second circuit has a second clock that maintains a reference time value for the network. The first circuit receives a second message from the second circuit, the second message including a second nonce and is associated with a timestamp identifying the reference time value. The first circuit compares the first nonce to the second nonce to determine whether the timestamp is valid and, in response to determining that the timestamp is valid, uses the timestamp to synchronize the first clock with the second clock.
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公开(公告)号：US12155760B2
公开(公告)日：2024-11-26
申请号：US17937659
申请日：2022-10-03
Applicant: Apple Inc.
Inventor： Birju N. Shah , Tristan F. Schaap , James E. Zmuda , Manfred von Willich
Abstract: Techniques are disclosed relating to time synchronization in a network. In some embodiments, an apparatus includes a first circuit having a first clock configured to maintain a local time value for a node coupled to a network. The first circuit is configured to send a first message to a second circuit. The first message includes a first nonce. The second circuit has a second clock that maintains a reference time value for the network. The first circuit receives a second message from the second circuit, the second message including a second nonce and is associated with a timestamp identifying the reference time value. The first circuit compares the first nonce to the second nonce to determine whether the timestamp is valid and, in response to determining that the timestamp is valid, uses the timestamp to synchronize the first clock with the second clock.
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公开(公告)号：US11463253B2
公开(公告)日：2022-10-04
申请号：US16329743
申请日：2017-09-08
Applicant: Apple Inc.
Inventor： Birju N. Shah , Tristan F. Schaap , James E. Zmuda , Manfred von Willich
Abstract: Techniques are disclosed relating to time synchronization in a network. In some embodiments, an apparatus includes a first circuit having a first clock configured to maintain a local time value for a node coupled to a network. The first circuit is configured to send a first message to a second circuit. The first message includes a first nonce. The second circuit has a second clock that maintains a reference time value for the network. The first circuit receives a second message from the second circuit, the second message including a second nonce and is associated with a timestamp identifying the reference time value. The first circuit compares the first nonce to the second nonce to determine whether the timestamp is valid and, in response to determining that the timestamp is valid, uses the timestamp to synchronize the first clock with the second clock.
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