公开(公告)号：US20210391992A1

公开(公告)日：2021-12-16

申请号：US17283367

申请日：2018-12-05

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Joshua Serratelli Schiffman ,  Remy Husson ,  Thalia May Laing

IPC: H04L9/32

Abstract: A method comprising: receiving, by a blockchain maintainer, a client request for a cryptographic token, the cryptographic token to allow the client to access a particular service from a service provider; processing, by the blockchain maintainer, the request using a blockchain smart contract to determine if the client request is valid; if the client request is determined to be valid, including the client request in the blockchain; generating, by a token issuer, the requested cryptographic token in response to inclusion of the valid client request in the blockchain; and issuing the generated cryptographic token to the client.

公开(公告)号：US11200314B2

公开(公告)日：2021-12-14

申请号：US16087712

申请日：2016-12-15

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Ellam ,  Adrian Baldwin ,  Remy Husson

IPC: G06F7/04 ,  G06F21/56 ,  G06F21/12 ,  G06F21/55 ,  G06F7/16

Abstract: Examples associated with ransomware attack monitoring are described. One example includes a monitor module to monitor files stored on the system for sequences of file accesses that match a predefined pattern of file accesses. An investigation module is activated when a number of sequences of file accesses that match the predefined pattern exceeds a first threshold. The investigation module logs actions taken by processes to modify files. A reaction module pauses a set of processes operating on the system when the number of sequences of file accesses that match the predefined pattern exceeds a second threshold. The reaction module then identifies processes associated with a suspected ransomware attack based on the logging performed by the investigation module, and resumes legitimate processes.

公开(公告)号：US20210034764A1

公开(公告)日：2021-02-04

申请号：US16980046

申请日：2018-04-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Helen Balinsky ,  Alberto Such Vicente ,  Chris Dalton ,  Remy Husson

IPC: G06F21/60 ,  G06F3/12 ,  H04L9/32

Abstract: In an example, print apparatus comprises a security services engine to perform cryptographic services. The security services engine may receive a request for a cryptographic service and validate that the request is an authorised request. On successful validation, the security services engine may perform the cryptographic service by acquiring a first key, acquire an associated first key identifier and may output the first key identifier.