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公开(公告)号:US10671546B2
公开(公告)日:2020-06-02
申请号:US15573597
申请日:2015-09-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Amro J. Awad , Pratyusa K. Manadhata , Stuart Haber , William G. Horne
Abstract: A technique includes receiving a request to initialize a region of a memory. Content that is stored in the region is encrypted based at least in part on a stored nonce value and a key. The technique includes, in response to the request, performing cryptographic-based initialization of the memory, including altering the stored nonce value to initialize the region of the memory.
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公开(公告)号:US20170163670A1
公开(公告)日:2017-06-08
申请号:US15116018
申请日:2014-04-30
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Pratyusa K Manadhata , William G. Horne
CPC classification number: H04L63/1425 , H04L61/1511 , H04L63/0227 , H04L63/101 , H04L63/1416 , H04L63/1441 , H04L67/42
Abstract: Systems and methods associated with packet logging are described. One example method includes testing a packet obtained from a packet stream against a whitelist and a blacklist. The method also includes dropping the packet when the packet tests positive against the whitelist. The method also includes providing the packet to a security manager when the packet tests positive against the blacklist. The method also includes logging the packet when the packet tests negative against the whitelist.
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公开(公告)号:US11240263B2
公开(公告)日:2022-02-01
申请号:US15420521
申请日:2017-01-31
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Pratyusa K. Manadhata , William G. Horne , Tomas Sander , Manish Marwah , Tomasz Jaroslaw Bania
IPC: H04L29/06
Abstract: In some examples, an alert relating to an issue in a computing arrangement is received. It is determined that the received alert is similar to a given alert in an information repository containing information of past processes performed to address respective issues, the determining comprising comparing a property associated with the received alert to a property of alerts associated with the past processes, and the information contained in the information repository comprising actions taken in the past processes to address the respective issues. Performance of a remediation action is triggered that comprises an action, identified by the information in the information repository, taken to respond to the given alert.
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公开(公告)号:US10778441B2
公开(公告)日:2020-09-15
申请号:US16260808
申请日:2019-01-29
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Stuart Haber , William G. Horne , Miaomiao Zhang
Abstract: In one implementation, a redactable document signature system includes an encoding engine, a reordering engine, and a signature engine. The encoding engine is to access a plurality of subdocuments of a document, to generate a plurality of commitment values from the plurality of subdocuments, and to generate a plurality of dummy values. Each dummy value is indistinguishable from a commitment value. The reordering engine is to define an order of the plurality of commitment values and the plurality of dummy values independent of an order of the subdocuments. The signature engine is to calculate a signature value for the document using the plurality of commitment values and the plurality of dummy values according to the order.
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公开(公告)号:US10649917B2
公开(公告)日:2020-05-12
申请号:US15577698
申请日:2015-09-17
Applicant: Hewlett Packard Enterprise Development LP
Inventor: William G. Horne , Amro J. Awad , Pratyusa K. Manadhata
IPC: G06F12/14 , H04L9/06 , G06F12/0895 , G06F12/0875 , H04L9/08
Abstract: Examples relate to efficient storage of initialization vectors in a system. One example facilitates determining an initialization vector for use in encrypting a first cache line of a first page of memory, wherein determining the initialization vector comprises concatenating a page-level counter with a first set of hierarchical counters. The first set of hierarchical counters includes a first counter associated with the first cache line; a first group counter associated with a first group of cache lines, the first group of cache lines comprising the first cache line; and a first cluster counter associated with a first cluster of cache line groups, the first cluster comprising the first group of cache lines.
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公开(公告)号:US20180219911A1
公开(公告)日:2018-08-02
申请号:US15420521
申请日:2017-01-31
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Pratyusa K. Manadhata , William G. Horne , Tomas Sander , Manish Marwah , Tomasz Jaroslaw Bania
IPC: H04L29/06
CPC classification number: H04L63/1441 , H04L63/1416 , H04L63/20
Abstract: In some examples, an alert relating to an issue in a computing arrangement is received. It is determined that the received alert is similar to a given alert in an information repository containing information of past processes performed to address respective issues, the determining comprising comparing a property associated with the received alert to a property of alerts associated with the past processes, and the information contained in the information repository comprising actions taken in the past processes to address the respective issues. Performance of a remediation action is triggered that comprises an action, identified by the information in the information repository, taken to respond to the given alert.
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公开(公告)号:US20180219875A1
公开(公告)日:2018-08-02
申请号:US15420417
申请日:2017-01-31
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Tomasz Jaroslaw Bania , William G. Horne , Renato Keshet , Pratyusa K. Manadhata , Manish Marwah , Brent James Miller , Barak Raz , Tomas Sander
IPC: H04L29/06
CPC classification number: H04L63/14 , H04L63/1416 , H04L63/1425 , H04L63/20
Abstract: In some examples, a plurality of alerts relating to issues in a computing arrangement are received, where the plurality of alerts generated based on events in the computing arrangement. A subset of the plurality of alerts is grouped into a bundle of alerts, the grouping being based on a criterion. The bundle of alerts is communicated to cause processing of the alerts in the bundle of alerts together.
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公开(公告)号:US10705745B2
公开(公告)日:2020-07-07
申请号:US15573582
申请日:2015-09-30
Applicant: Hewlett Packard Enterprise Development LP
Inventor: Amro J. Awad , Pratyusa K. Manadhata , William G. Horne
Abstract: A technique includes receiving, in a memory controller, a request to read data that is stored in the region of memory. The technique includes using the memory controller to manage access to the memory based on an initialization state indicator for the region of memory. Managing the access includes determining whether the region of memory is associated with the initialized state based on the indicator; and based at least in part on the determination, selectively bypassing accessing the memory and using the memory controller to provide data having a provide a predetermined data pattern.
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公开(公告)号:US10686817B2
公开(公告)日:2020-06-16
申请号:US15754282
申请日:2015-09-21
Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Inventor: Prasad V. Rao , Sandeep N. Bhatt , William G. Horne , Pratyusa K. Manadhata , Miranda Jane Felicity Mowbray
Abstract: Examples determine a number of hosts, within an enterprise, which are resolving a particular domain. Based on the number of hosts within the enterprise resolving the particular domain, the examples identify whether the particular domain is benign.
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公开(公告)号:US20180165225A1
公开(公告)日:2018-06-14
申请号:US15577698
申请日:2015-09-17
Applicant: Hewlett Packard Enterprise Development LP
Inventor: William G. Horne , Amro J. Awad , Pratyusa K. Manadhata
IPC: G06F12/14 , G06F12/0875 , H04L9/06 , H04L9/08
CPC classification number: G06F12/1408 , G06F12/0875 , G06F12/0895 , G06F2212/1052 , H04L9/065 , H04L9/08
Abstract: Examples relate to efficient storage of initialization vectors in a system. One example facilitates determining an initialization vector for use in encrypting a first cache line of a first page of memory, wherein determining the initialization vector comprises concatenating a page-level counter with a first set of hierarchical counters. The first set of hierarchical counters includes a first counter associated with the first cache line; a first group counter associated with a first group of cache lines, the first group of cache lines comprising the first cache line; and a first cluster counter associated with a first cluster of cache line groups, the first cluster comprising the first group of cache lines.
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