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公开(公告)号：US20200089614A1
公开(公告)日：2020-03-19
申请号：US16130082
申请日：2018-09-13
Applicant: Seagate Technology LLC
Inventor： Chee Hou Peng , Mun Kai Lye , WenXiang Xie , Vincent Uy
IPC: G06F12/0891 , G06F12/0888 , G06F12/0868
Abstract: A method writing data received from a host device includes determining whether command data of a write command includes metadata, flushing the command data out of a volatile write cache according to a first caching policy responsive to a determination that the command data does includes metadata, and flushing the command data out of the volatile write cache according to a second different caching policy responsive to a determination that the command data does not include metadata.
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公开(公告)号：US10725925B2
公开(公告)日：2020-07-28
申请号：US16130082
申请日：2018-09-13
Applicant: Seagate Technology LLC
Inventor： Chee Hou Peng , Mun Kai Lye , WenXiang Xie , Vincent Uy
IPC: G06F12/0891 , G06F12/0868 , G06F12/0888
Abstract: A method writing data received from a host device includes determining whether command data of a write command includes metadata, flushing the command data out of a volatile write cache according to a first caching policy responsive to a determination that the command data does includes metadata, and flushing the command data out of the volatile write cache according to a second different caching policy responsive to a determination that the command data does not include metadata.
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公开(公告)号：US11245527B2
公开(公告)日：2022-02-08
申请号：US16669307
申请日：2019-10-30
Applicant: Seagate Technology LLC
Inventor： Vincent Uy , Nino Wicaksono , Saravanan Nagarajan , Kwong Heng Alphonsus John Kwok , Kian Beng Lim
Abstract: Secure distribution of data objects using a unique quantum-safe cryptographic key provided to a user requesting the data object that has been authenticated using a zero-knowledge authentication. A user may access the system by way of the zero-knowledge authentication to request access to a data object of a data library. The system may generate and associate a unique quantum-safe cryptographic key for the instance of the data library to be provided to the authenticated user. The data object is encrypted using the unique quantum-safe cryptographic key. The encrypted data object and the unique quantum-safe cryptographic key are provided to the authenticated user. Other instances of the data object may also be encrypted with other unique quantum-safe cryptographic keys. In turn, access to a unique quantum-safe cryptographic key may not be useful in decrypting other instances of the data object, and other data objects may not be decrypted using a given unique key for a given data object instance.
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公开(公告)号：US20210132826A1
公开(公告)日：2021-05-06
申请号：US16676068
申请日：2019-11-06
Applicant: Seagate Technology LLC
Inventor： Kwong Heng Alphonsus John Kwok , Kian Beng Lim , Wei Siong Teo , Vincent Uy , Nino Wicaksono
Abstract: Apparatus and method for local authentication of a collection of processing devices, such as but not limited to storage devices (e.g., SSDs, etc.). In some embodiments, each of the processing devices stores an internal token value as a unique ID value associated with the corresponding processing device. A host controller circuit performs a local authentication of the collection by accessing a distributed ledger as a data structure in a memory that lists the internal token values of the respective processing devices. The distributed ledger may take the form of a blockchain. The processing devices may each further store an external token value as the internal token value of a selected one of the other processing devices in the collection. A newly added device may be initially authenticated using a remote server. Once authenticated, the device is added to the collection and thereafter authenticated locally.
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