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    USER AUTHENTICATION
    1.
    发明申请
    USER AUTHENTICATION 有权

    公开(公告)号：US20220138304A1

    公开(公告)日：2022-05-05

    申请号：US17415231

    申请日：2020-06-23

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

    Inventor： Gaetan Wattiau ,  Joshua Serratelli Schiffman ,  Thalia Laing ,  Boris Balacheff

    IPC: G06F21/34

    Abstract: In an example there is provided a method of authenticating a user. An authentication challenge is received in response to a request to authenticate a user. The challenge is distributed to each device from a subset of a set of registered devices. At each device a share of an authentication token is accessed and a partial response to the challenge is generated based on an authentication token and challenge. A response to the challenge is generated by combining the partial responses from the subset of devices, and is communicated to an authenticator. The user is authenticated when the subset of devices is an authorised subset. Every authorised subset of the set of registered devices comprises at least one device from the first group of devices.

    GROUP ATTESTATIONS
    2.
    发明申请
    GROUP ATTESTATIONS 有权

    公开(公告)号：US20220108014A1

    公开(公告)日：2022-04-07

    申请号：US17414488

    申请日：2019-06-26

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

    Inventor： Joshua Serratelli Schiffman ,  Thalia Laing ,  Gaetan Wattiau

    IPC: G06F21/57

    Abstract: In an example, a method includes requesting, from a node associated with a group comprising a plurality of computing devices associated with an access structure defining a set within the group of computing devices, an attestation of a capability of the set; receiving the attestation; and implementing, based on the received attestation, a procedure according to a device capability policy.

    DEVICE REGISTRATION
    3.
    发明申请
    DEVICE REGISTRATION 有权

    公开(公告)号：US20220385480A1

    公开(公告)日：2022-12-01

    申请号：US17755889

    申请日：2019-12-20

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

    Inventor： Thalia Laing ,  Joshua Serratelli Schiffman ,  Mark Ryan

    IPC: H04L9/32

    Abstract: In an example there is provided a method for a set of registered devices that are registered to participate in an authentication protocol, where each registered device has a share of an authentication key. The method comprises generating share data for a share of the authentication key. The share data is communicated from an authorised subset of the registered devices to a device. The share of the authentication key is generated at the device, on the basis of the share data. The share of the authentication key combines with shares of the registered devices to allow the device to participate in the authentication protocol.

    NETWORK PRINTING
    4.
    发明申请
    NETWORK PRINTING 有权

    公开(公告)号：US20210312063A1

    公开(公告)日：2021-10-07

    申请号：US17058153

    申请日：2018-10-25

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

    Inventor： Thalia Laing ,  Joshua Serratelli Schiffman ,  Gaetan Wattiau

    IPC: G06F21/60 ,  G06F3/12 ,  H04L9/08

    Abstract: A network printing system comprising a user device to encrypt a print job using a public key of a user and to transmit the encrypted print job to a print server. The system may further comprise the print server to re-encrypt the encrypted print job using the re-encryption key. The system may further comprise the printer to decrypt the re-encrypted print job using a private key of the printer and print the decrypted print job.

    KEY ENCRYPTION KEY WRAPPING
    6.
    发明申请
    KEY ENCRYPTION KEY WRAPPING 有权

    公开(公告)号：US20210377007A1

    公开(公告)日：2021-12-02

    申请号：US16606462

    申请日：2018-06-01

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

    Inventor： Joshua Serratelli Schiffman ,  Thalia Laing ,  Shivaun Albright

    IPC: H04L9/08 ,  G06F21/60 ,  G06F21/31 ,  G06F3/12

    Abstract: In an example, a method of encryption is described to include generation of a content encryption key and a key encryption key. In that example, the content encryption key is wrapped based on a key wrap operation using the key encryption key and the wrapped content encryption key is encrypted using a policy encryption key. Further in that example, the policy encryption key is encrypted using a public key corresponding to a print apparatus. In an example, a method of decryption is described. The example method of decryption performs recovery of a policy object using a private key corresponding to a print apparatus. In that example, the policy object includes a wrapped key that is unwrapped using a key encryption key to recover a content encryption key usable to decrypt an encrypted electronic document.

    REMOTE COMMANDS
    7.
    发明申请
    REMOTE COMMANDS 有权

    公开(公告)号：US20220173910A1

    公开(公告)日：2022-06-02

    申请号：US17416533

    申请日：2019-08-16

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

    Inventor： Joshua Serratelli Schiffman ,  Thalia Laing ,  Valiuddin Ali ,  Gaëtan Wattiau

    IPC: H04L9/32 ,  G06F21/64 ,  H04W12/04 ,  H04W12/06 ,  H04L9/40

    Abstract: In an example there is provided a method of issuing a command. A request is received from a device in a set of registered devices, the request comprising a command for execution at a remote device. The request is communicated to the set of registered devices. A response to the request is received from each device in a subset of the set of registered devices. A further request to execute the command, is communicated to the remote device on the basis of the responses. The command executes on the remote device when the subset of devices is an authorised subset of the registered devices.

    APPARATUS AND METHOD FOR DYNAMIC SHARDING OF CONCURRENT BLOCKCHAINS
    9.
    发明申请
    APPARATUS AND METHOD FOR DYNAMIC SHARDING OF CONCURRENT BLOCKCHAINS 有权

    公开(公告)号：US20210314154A1

    公开(公告)日：2021-10-07

    申请号：US17058149

    申请日：2018-10-17

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

    Inventor： Remy Husson ,  Joshua Serratelli Schiffman ,  Thalia Laing

    IPC: H04L9/32 ,  G06F16/903

    Abstract: An apparatus, being a network entity of a computer network is provided. The apparatus comprises a communication module to receive and to send information on a blockchain. Moreover, the apparatus comprises a query module to obtain from a master chain of the blockchain a rule for a first shard and a second shard of the blockchain with respect to a smart contract. Furthermore, the query module is to obtain information on the smart contract from the first shard or from the second shard depending on the rule. Moreover, the query module is to output the information on the smart contract.

    Key encryption key wrapping
    10.
    发明授权
    Key encryption key wrapping 有权

    公开(公告)号：US11689357B2

    公开(公告)日：2023-06-27

    申请号：US16606462

    申请日：2018-06-01

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

    Inventor： Joshua Serratelli Schiffman ,  Thalia Laing ,  Shivaun Albright

    IPC: H04L9/08 ,  G06F3/12 ,  G06F21/31 ,  G06F21/60

    CPC classification number: H04L9/0822 ,  G06F3/1222 ,  G06F3/1238 ,  G06F21/31 ,  G06F21/608 ,  H04L9/0863

    Abstract: In an example, a method of encryption is described to include generation of a content encryption key and a key encryption key. In that example, the content encryption key is wrapped based on a key wrap operation using the key encryption key and the wrapped content encryption key is encrypted using a policy encryption key. Further in that example, the policy encryption key is encrypted using a public key corresponding to a print apparatus. In an example, a method of decryption is described. The example method of decryption performs recovery of a policy object using a private key corresponding to a print apparatus. In that example, the policy object includes a wrapped key that is unwrapped using a key encryption key to recover a content encryption key usable to decrypt an encrypted electronic document.

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