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1.发明申请SYSTEM AND METHOD FOR WIPING ENCRYPTED DATA ON A DEVICE HAVING FILE-LEVEL CONTENT PROTECTION 有权用于在具有文件级内容保护的设备上擦写加密数据的系统和方法公开(公告)号：US20130339715A1
公开(公告)日：2013-12-19
申请号：US13941373
申请日：2013-07-12
Applicant: Apple Inc.
Inventor： Dallas Blake De Atley , Gordon Freedman , Thomas Brogan Duffy, Jr. , Tahoma Madrone Toelkes , Michael John Smith , Paul William Chinn , David Rahardja
IPC: G06F21/60
CPC classification number: G06F9/4406 , G06F9/4401 , G06F21/602 , H04L9/0816 , H04L9/0891 , H04L9/0894 , H04L9/12 , H04L9/30 , H04L9/3226 , H04L2209/80 , H04W12/02 , H04W12/04 , H04W12/06
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.
Abstract translation: 这里公开了用于擦除存储在文件系统中的用户数据的系统，方法和非暂时的计算机可读存储介质。 该方法包括在具有每个文件和每个类基础上加密的文件系统的设备上破坏包含加密密钥的所有密钥袋，擦除和重建与用户数据相关联的文件系统的至少一部分，以及创建新的默认密钥袋， 加密密钥。 本文还公开了一种擦除存储在以每个文件和每个类为基础加密的远程文件系统中的用户数据的方法。 该方法包括向远程设备发送闭塞指令，这导致远程设备破坏包含远程设备上的加密密钥的所有密钥袋，擦除并重建与用户数据相关联的文件系统的至少一部分，并在远程设备上创建 一个包含加密密钥的新的默认密钥袋。
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公开(公告)号：US11336294B2
公开(公告)日：2022-05-17
申请号：US15491740
申请日：2017-04-19
Applicant: Apple Inc.
Inventor： Derek R. Kumar , Thomas Brogan Duffy, Jr.
Abstract: A method and apparatus of a device that compresses an object stored in memory is described. In an exemplary embodiment, the device receives an indication that the object is to be compressed. The device further selects one of a plurality of compression algorithms based on at least a characteristic of the object. In addition, the device compresses the object in-memory using the selected compression algorithm.
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3.发明授权公开(公告)号：US10025597B2
公开(公告)日：2018-07-17
申请号：US14992798
申请日：2016-01-11
Applicant: Apple Inc
Inventor： Dallas Blake De Atley , Gordon Freedman , Thomas Brogan Duffy, Jr. , Tahoma Madrone Toelkes , Michael John Smith , Paul William Chinn , David Rahardja
IPC: H04L9/00 , G06F9/4401 , H04L9/08 , H04L9/12 , H04L9/32 , G06F21/60 , H04L9/30 , H04W12/04 , H04W12/02 , H04W12/06
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.
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Patent Agency Ranking
公开(公告)号：US09813389B2
公开(公告)日：2017-11-07
申请号：US15217674
申请日：2016-07-22
Applicant: Apple Inc.
Inventor： Conrad Sauerwald , Vrajesh Rajesh Bhavsar , Kenneth Buffalo McNeil , Thomas Brogan Duffy, Jr. , Michael Lambertus Hubertus Brouwer , Matthew John Byom , Mitchell David Adler , Eric Brandon Tamura
CPC classification number: H04L63/0428 , G06F11/1458 , G06F11/1464 , H04L9/0637 , H04L9/0822 , H04L9/0825 , H04L9/0863 , H04L9/0894 , H04L63/0435 , H04L63/061 , H04L2463/062 , H04W12/04 , H04W12/08
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for wireless data protection utilizing cryptographic key management on a primary device and a backup device. A system encrypts a file with a file key and encrypts the file key twice, resulting in two encrypted file keys. The system encrypts each file key differently and stores a first file key on the primary device and transmits one of the encrypted file keys in addition to the encrypted file to a backup device for storage. On the backup device, the system associates the encrypted file key with a set of backup keys protected by a user password. In one embodiment, the system generates an initialization vector for use in cryptographic operations based on a file key. In another embodiment, the system manages cryptographic keys on a backup device during a user password change.
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5.发明授权公开(公告)号：US09237016B2
公开(公告)日：2016-01-12
申请号：US14299359
申请日：2014-06-09
Applicant: Apple Inc
Inventor： Dallas Blake De Atley , Gordon Freedman , Thomas Brogan Duffy, Jr. , Tahoma Madrone Toelkes , Michael John Smith , Paul William Chinn , David Rahardja
IPC: H04L9/30 , H04L9/12 , H04L9/08 , G06F11/30 , H04L9/32 , G06F21/60 , G06F9/44 , H04W12/04 , H04W12/02 , H04W12/06
CPC classification number: G06F9/4406 , G06F9/4401 , G06F21/602 , H04L9/0816 , H04L9/0891 , H04L9/0894 , H04L9/12 , H04L9/30 , H04L9/3226 , H04L2209/80 , H04W12/02 , H04W12/04 , H04W12/06
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.
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6.发明授权公开(公告)号：US11263020B2
公开(公告)日：2022-03-01
申请号：US16017940
申请日：2018-06-25
Applicant: Apple Inc.
Inventor： Dallas Blake De Atley , Gordon Freedman , Thomas Brogan Duffy, Jr. , Tahoma Madrone Toelkes , Michael John Smith , Paul William Chinn , David Rahardja
IPC: G06F9/4401 , H04L9/08 , H04W12/04 , H04L9/12 , H04L9/32 , H04W12/082 , G06F21/60 , H04L9/30 , H04W12/02 , H04W12/06
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.
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公开(公告)号：US11113113B2
公开(公告)日：2021-09-07
申请号：US15853239
申请日：2017-12-22
Applicant: Apple Inc.
Inventor： Derek R. Kumar , Thomas Brogan Duffy, Jr.
Abstract: Systems, apparatuses, and methods for efficiently selecting compressors for data compression are described. In various embodiments, a computing system includes at least one processor and multiple codecs such as one or more hardware codecs and one or more software codecs executable by the processor. The computing system receives a workload and processes instructions, commands and routines corresponding to the workload. One or more of the tasks in the workload are data compression tasks. Current condition(s) are determined during the processing of the workload by the computing system. Conditions are determined to be satisfied based on comparing current selected characteristics to respective thresholds. In one example, when the compressor selector determines a difference between a target compression ratio and an expected compression ratio of the first codec exceeds a threshold, the compressor selector switches from hardware codecs to software codecs.
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8.发明授权System and method for wiping encrypted data on a device having file-level content protection 有权用于在具有文件级内容保护的设备上擦除加密数据的系统和方法公开(公告)号：US08756419B2
公开(公告)日：2014-06-17
申请号：US13941373
申请日：2013-07-12
Applicant: Apple Inc.
Inventor： Dallas Blake De Atley , Gordon Freedman , Thomas Brogan Duffy, Jr. , Tahoma Madrone Toelkes , Michael John Smith , Paul William Chinn , David Rahardja
CPC classification number: G06F9/4406 , G06F9/4401 , G06F21/602 , H04L9/0816 , H04L9/0891 , H04L9/0894 , H04L9/12 , H04L9/30 , H04L9/3226 , H04L2209/80 , H04W12/02 , H04W12/04 , H04W12/06
Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for erasing user data stored in a file system. The method includes destroying all key bags containing encryption keys on a device having a file system encrypted on a per file and per class basis, erasing and rebuilding at least part of the file system associated with user data, and creating a new default key bag containing encryption keys. Also disclosed herein is a method of erasing user data stored in a remote file system encrypted on a per file and per class basis. The method includes transmitting obliteration instructions to a remote device, which cause the remote device to destroy all key bags containing encryption keys on the remote device, erase and rebuild at least part of the file system associated with user data, and create on the remote device a new default key bag containing encryption keys.
Abstract translation: 这里公开了用于擦除存储在文件系统中的用户数据的系统，方法和非暂时的计算机可读存储介质。 该方法包括在具有每个文件和每个类基础上加密的文件系统的设备上破坏包含加密密钥的所有密钥袋，擦除和重建与用户数据相关联的文件系统的至少一部分，以及创建新的默认密钥袋， 加密密钥。 本文还公开了一种擦除存储在以每个文件和每个类为基础加密的远程文件系统中的用户数据的方法。 该方法包括向远程设备发送闭塞指令，这导致远程设备破坏包含远程设备上的加密密钥的所有密钥袋，擦除并重建与用户数据相关联的文件系统的至少一部分，并在远程设备上创建 一个包含加密密钥的新的默认密钥袋。
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