Secure Session Resumption
    1.
    发明申请

    公开(公告)号:US20230093749A1

    公开(公告)日:2023-03-23

    申请号:US17932979

    申请日:2022-09-16

    Applicant: Apple Inc.

    Abstract: Techniques are disclosed relating to resuming a communication session. In some embodiments, a first computing device stores a session resumption token that includes metadata usable to resume a communication session. The first computing device provides a request to resume the communication session with a second computing device and receives, from the second computing device, an output of a verifiable random function (VRF) associated with the request. In response to the request, the first computing device performs a verification of the output and determines, based on the verification, whether to provide the session resumption token to the second computing device.

    Secure accessory connections
    2.
    发明授权

    公开(公告)号:US12206799B2

    公开(公告)日:2025-01-21

    申请号:US17805335

    申请日:2022-06-03

    Applicant: Apple Inc.

    Abstract: Techniques are disclosed relating to securely authenticating communicating devices. In various embodiments, a computing device receives, via a network connection with a network, a first certificate for a first public key pair of the computing device. The computing device provides the first certificate to an offline accessory device and receives a second certificate for a second public key pair maintained by the offline accessory device. The computing device performs a verification of the second certificate and, responsive to the verification being successful, interacts with the offline accessory device. In some embodiments, prior to providing the first certificate, the computing device determines an ordering in which the first and second certificates are to be exchanged by the first computing device and the offline accessory device, and the first certificate is provided to the offline accessory device in accordance with the determined ordering.

    PRIVACY PRESERVING LOGGING
    6.
    发明申请

    公开(公告)号:US20220391534A1

    公开(公告)日:2022-12-08

    申请号:US17659079

    申请日:2022-04-13

    Applicant: Apple Inc.

    Abstract: A server system implemented by a service provider may store health data of a user according to a multi-node data structure. The server system may generate transaction records based on requests to access the health data. Responsive to requests for the transaction records, the server system may query a database that includes the health data and generate a data package based on the querying. The data package may be sent to a requesting system. The data package may be usable by the requesting system to identify which patient profiles were accessed by which physicians.

    Indirect branch predictor security protection

    公开(公告)号:US11321095B2

    公开(公告)日:2022-05-03

    申请号:US16663621

    申请日:2019-10-25

    Applicant: Apple Inc.

    Abstract: Techniques are disclosed relating to protecting branch prediction information. In various embodiments, an integrated circuit includes branch prediction logic having a table that maintains a plurality of entries storing encrypted target address information for branch instructions. The branch prediction logic is configured to receive machine context information for a branch instruction having a target address being predicted by the branch prediction logic, the machine context information including a program counter associated with the branch instruction. The branch prediction logic is configured to use the machine context information to decrypt encrypted target address information stored in one of the plurality of entries identified based on the program counter. In some embodiments, the branch prediction logic decrypts the encrypted target address information by performing a cipher to encrypt the machine context information and performing a Boolean exclusive-OR operation of the encrypted machine context information and the encrypted target address information.

    Secure Accessory Connections
    8.
    发明申请

    公开(公告)号:US20220393885A1

    公开(公告)日:2022-12-08

    申请号:US17805335

    申请日:2022-06-03

    Applicant: Apple Inc.

    Abstract: Techniques are disclosed relating to securely authenticating communicating devices. In various embodiments, a computing device receives, via a network connection with a network, a first certificate for a first public key pair of the computing device. The computing device provides the first certificate to an offline accessory device and receives a second certificate for a second public key pair maintained by the offline accessory device. The computing device performs a verification of the second certificate and, responsive to the verification being successful, interacts with the offline accessory device. In some embodiments, prior to providing the first certificate, the computing device determines an ordering in which the first and second certificates are to be exchanged by the first computing device and the offline accessory device, and the first certificate is provided to the offline accessory device in accordance with the determined ordering.

    Synchronizing content
    9.
    发明授权

    公开(公告)号:US11182349B2

    公开(公告)日:2021-11-23

    申请号:US16428914

    申请日:2019-05-31

    Applicant: Apple Inc.

    Abstract: The subject technology may be implemented by a device that includes at least one processor configured to encrypt a data object based at least in part on an encryption key. The at least one processor may be further configured to sign the encrypted data object with a private key and transmit the signed encrypted data object to a server for retrieval by another device. The at least one processor may be further configured to generate a sharing object corresponding to the data object, wherein the sharing object includes an encryption key and a public key that corresponds to the private key. The at least one processor may be further configured to encrypt the sharing object using a key of the other device and transmit, over a secure channel, the encrypted sharing object to the other device for subsequent retrieval and verification of the signed data object from the server.

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