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    Method for securing user data with DRM keys
    71.
    发明授权
    Method for securing user data with DRM keys 有权

    公开(公告)号：US10686767B2

    公开(公告)日：2020-06-16

    申请号：US15274999

    申请日：2016-09-23

    Applicant: Apple Inc.

    Inventor： Mitchell D. Adler ,  Andrew Roger Whalley

    IPC: H04L29/06 ,  G06F21/10 ,  H04L9/08 ,  G06F21/31 ,  G06F21/78 ,  G06F21/35 ,  G06F21/62

    Abstract: Some embodiments provide convenient auto-authentication for user data on a primary device, while still providing a significant level of security, by taking advantage of existing security and cryptographic measures used to communicate with a secondary device. The primary device of some embodiments encrypts the user data on the primary device using a cryptographic key based on a set of keys received from the secondary device. In some embodiments, the primary device encrypts authentication data, or a local key generated from the authentication data, using a remote key received from the secondary device, and encrypts the user data with the local key. In some embodiments, the keys received from the secondary device are an existing set of keys for establishing an encrypted channel of communication for transmitting digital rights management (DRM) protected content according to a DRM protection scheme.

    Cryptographic separation of users
    73.
    发明授权
    Cryptographic separation of users 有权

    公开(公告)号：US10423804B2

    公开(公告)日：2019-09-24

    申请号：US15275273

    申请日：2016-09-23

    Applicant: Apple Inc.

    Inventor： Wade Benson ,  Conrad Sauerwald ,  Mitchell D. Adler ,  Michael Brouwer ,  Timothee Geoghegan ,  Andrew R. Whalley ,  David P. Finkelstein ,  Yannick L. Sierra

    IPC: G06F21/72 ,  H04L9/08 ,  H04L9/14 ,  G06F21/32

    Abstract: Techniques are disclosed relating to securely storing data in a computing device. In one embodiment, a computing device includes a secure circuit configured to maintain key bags for a plurality of users, each associated with a respective one of the plurality of users and including a first set of keys usable to decrypt a second set of encrypted keys for decrypting data associated with the respective user. The secure circuit is configured to receive an indication that an encrypted file of a first of the plurality of users is to be accessed and use a key in a key bag associated with the first user to decrypt an encrypted key of the second set of encrypted keys. The secure circuit is further configured to convey the decrypted key to a memory controller configured to decrypt the encrypted file upon retrieval from a memory.

    Combined authorization process
    75.
    发明授权
    Combined authorization process 有权

    公开(公告)号：US10270597B2

    公开(公告)日：2019-04-23

    申请号：US15273622

    申请日：2016-09-22

    Applicant: Apple Inc.

    Inventor： Yannick L. Sierra ,  Mitchell D. Adler

    IPC: H04L9/30 ,  H04L9/32 ,  H04L9/08 ,  H04L9/14 ,  H04L29/06 ,  H04W12/08

    Abstract: Some embodiments provide a method for a first device to join a group of related devices. The method receives input of a password for an account with a centralized entity and a code generated by a second device in the group. When the second device determines that the code input on the first device matches the generated code, the method receives an authentication code from the second device for authorizing the first device with the entity as a valid device for the account. The method uses the password and information regarding the first device to generate an application to the group. After sending the application to the second device, the method receives information from the second device that enables the first device to add itself to the group. The second device verifies the generated application, and the method uses the information received from the second device to join the group.

    Keychain syncing
    76.
    发明授权
    Keychain syncing 有权

    公开(公告)号：US10218685B2

    公开(公告)日：2019-02-26

    申请号：US14937830

    申请日：2015-11-10

    Applicant: Apple Inc.

    Inventor： Michael Brouwer ,  Dallas B. De Atley ,  Mitchell D. Adler

    IPC: H04L29/06 ,  G06F17/30 ,  H04L29/08 ,  H04L12/44 ,  H04W84/18

    Abstract: Some embodiments provide non-transitory machine-readable medium that stores a program which when executed by at least one processing unit of a device synchronizes a set of keychains stored on the device with a set of other devices. The device and the set of other devices are communicatively coupled to one another through a peer-to-peer (P2P) network. The program receives a modification to a keychain in the set of keychains stored on the device. The program generates an update request for each device in the set of other devices in order to synchronize the set of keychains stored on device with the set of other devices. The program transmits through the P2P network the set of update requests to the set of other devices over a set of separate, secure communication channels.

    Accessory authentication for electronic devices
    77.
    发明授权
    Accessory authentication for electronic devices 有权

    公开(公告)号：US10049206B2

    公开(公告)日：2018-08-14

    申请号：US15671012

    申请日：2017-08-07

    Applicant: Apple Inc.

    Inventor： Jonathan J. Rubinstein ,  Anthony M. Fadell ,  Jesse Lee Dorogusker ,  Mitchell D. Adler ,  John Wesley Archibald

    IPC: G06F21/44 ,  G06F21/60

    Abstract: Improved techniques to control utilization of accessory devices with electronic devices are disclosed. The improved techniques can use cryptographic approaches to authenticate electronic devices, namely, electronic devices that interconnect and communicate with one another. One aspect pertains to techniques for authenticating an electronic device, such as an accessory device. Another aspect pertains to provisioning software features (e.g., functions) by or for an electronic device (e.g., a host device). Different electronic devices can, for example, be provisioned differently depending on different degrees or levels of authentication, or depending on manufacturer or product basis. Still another aspect pertains to using an accessory (or adapter) to convert a peripheral device (e.g., USB device) into a host device (e.g., USB host). The improved techniques are particularly well suited for electronic devices, such as media devices, that can receive accessory devices. One example of a media device is a media player, such as a hand-held media player (e.g., music player), that can present (e.g., play) media items (or media assets).

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