公开(公告)号：US20200167490A1

公开(公告)日：2020-05-28

申请号：US16612978

申请日：2018-07-13

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

Inventor： Joshua Serratelli Schiffman ,  Luke T. Mather ,  Boris Balacheff

IPC: G06F21/60 ,  H04L29/06 ,  H04L9/08 ,  G06F9/48

Abstract: A method is described for enforcing a secure print policy, the method comprising providing a security policy, cryptographically binding the security policy to a print job to generate a secure print job, verify security properties of at least one of: a printer and an intermediary device using the security policy and a remote attestation protocol, and provided the security properties are verified, releasing the print job to the printer.

公开(公告)号：US20200153807A1

公开(公告)日：2020-05-14

申请号：US16629981

申请日：2017-07-18

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

Inventor： Joshua Serratelli Schiffman ,  Luke T. Mather

IPC: H04L29/06 ,  G06F21/60 ,  H04L9/08

Abstract: A method for registering the identity of a rendering apparatus, the method comprising generating a passphrase using a processor of the rendering apparatus, attesting to the validity of the passphrase at user equipment or submitting the passphrase to the user equipment, encrypting a rendering apparatus identity using a cryptographic session key agreed on the basis of the passphrase, and transferring the rendering apparatus identity from the user equipment to a user apparatus

公开(公告)号：US11270012B2

公开(公告)日：2022-03-08

申请号：US16076544

申请日：2017-04-21

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

Inventor： Nassir Mohammad ,  Jonathan Griffin ,  Gurchetan Grewal ,  Luke T. Mather ,  Joshua Serratelli Schiffman

IPC: G06F21/00 ,  G06F21/62 ,  G06F21/60 ,  G06F21/72

Abstract: In one example in accordance with the present disclosure, a computing device is described. The computing device includes an encryption device to encrypt, using an encryption key, a document to be rendered. A generating device generates multiple shares of a decryption key using a secret-sharing scheme. A threshold number of the multiple shares allows decryption of the document. A transmit device transmits different shares of the multiple shares to different devices. The document is rendered when the threshold number of multiple shares are rejoined at a rendering device.

公开(公告)号：US11137948B2

公开(公告)日：2021-10-05

申请号：US16628755

申请日：2018-07-13

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

Inventor： Joshua Serratelli Schiffman ,  Luke T. Mather ,  Boris Balacheff

IPC: G06F3/12 ,  G06F21/60

Abstract: User equipment, the user equipment to receive data representing identity information broadcast by a rendering apparatus over a passive non-contact short proximity data transport mechanism when the user equipment is proximate the rendering apparatus, and push the gathered identity information to a workstation, to enable the workstation to connect with the rendering apparatus.

公开(公告)号：US11354399B2

公开(公告)日：2022-06-07

申请号：US16077689

申请日：2017-07-17

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

Inventor： Joshua Serratelli Schiffman ,  Luke T. Mather ,  Christopher Charles Mohrman

IPC: G06F21/45 ,  G06F21/60 ,  G06F21/62 ,  H04L9/32

Abstract: A method for providing a set of certificates encoding authorisations, the method comprising processing respective ones of multiple authorisation requests at a trusted signing authority apparatus to verify respective digital signatures applied to the requests, the multiple authorisation requests received over a first communication link between the trusted signing authority apparatus and an administration apparatus, validating one or more authorisation request parameters of respective ones of the authorisation requests, generating a certificate encoding an authorisation at the trusted signing authority apparatus and transmitting the generated certificate to the administration apparatus or a requesting apparatus over a second communication link.

公开(公告)号：US11146406B2

公开(公告)日：2021-10-12

申请号：US16076232

申请日：2017-07-26

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

Inventor： Joshua Serratelli Schiffman ,  Christopher Charles Mohrman ,  Luke T. Mather

IPC: H04L9/32 ,  G06F21/62 ,  H04L29/06

Abstract: A method for managing entitlement of a device to access a service, the method comprising providing an authenticated identity for the device, the authenticated identity including a public encryption key pair associated with the device signed by a trusted authority, and generating a device entitlement certificate encoding an authorisation related to the service and including a public key of the public encryption key pair associated with the device, wherein the device entitlement certificate is signed by the trusted authority.