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    GENERATING PRIME NUMBERS
    11.
    发明申请
    GENERATING PRIME NUMBERS 有权

    公开(公告)号：US20220400005A1

    公开(公告)日：2022-12-15

    申请号：US17761712

    申请日：2019-10-16

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

    Inventor： Joshua Serratelli Schiffman ,  Thalia May Laing ,  David Plaquin

    IPC: H04L9/08

    Abstract: In an example a method includes retrieving, from a persistent memory, a previously-identified counter value corresponding to an iteration of a prime number generation procedure that previously produced a verified prime number. The method further includes re-generating, using processing circuitry implementing a deterministic prime number calculator and with the previously-identified counter value as an input to the deterministic prime number calculator, the verified prime number.

    GENERATION OF SIGNING KEYS
    12.
    发明公开
    GENERATION OF SIGNING KEYS 审中-公开

    公开(公告)号：US20240187218A1

    公开(公告)日：2024-06-06

    申请号：US18554888

    申请日：2022-01-24

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

    Inventor： Chee Keat Fong ,  Shefali Jain ,  Joshua Serratelli Schiffman ,  Thalia May Laing

    IPC: H04L9/08

    CPC classification number: H04L9/0825 ,  H04L9/085

    Abstract: An apparatus, machine-readable instructions and a system to provision partial signing keys to approver devices are provided. A first plurality of partial signing keys is provisioned to a set of first approver devices. A request to execute a command is received and forwarded to multiple ones of the first approver devices. Responsive to the forwarded request, a threshold number of distinct partial signatures are received indicating approval for execution of the command, the approval being verifiable by combining of the threshold number of different partial signatures to generate a complete signature. The apparatus provisions a further partial signing key to a further approver device subsequent to execution of the approved command.

    ISSUING SECRET SHARES
    15.
    发明公开
    ISSUING SECRET SHARES 审中-公开

    公开(公告)号：US20230327860A1

    公开(公告)日：2023-10-12

    申请号：US18042445

    申请日：2020-08-28

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

    Inventor： Yong Qi Wang ,  Thalia May Laing ,  Joshua Serratelli Schiffman

    IPC: H04L9/08 ,  H04L9/30

    CPC classification number: H04L9/085 ,  H04L9/3093

    Abstract: Example implementations provide machine readable storage storing machine executable instructions, arranged, when processed by a processor, for a succeeding generation player device accessing an unassigned share in a secret the instructions comprising C instructions to: (a.) receive an intermediate generation share of a set of intermediate shares, the intermediate generation share being arranged to facilitate access to the unassigned share and the intermediate generation share having been derived by an intermediate generation player device from shares of further shares provided by a set of preceding generation player devices; (b.) receive, from a set of other intermediate generation player devices, a set of other intermediate generation shares of the set of intermediate shares, to facilitate access by the succeeding generation player device to the unassigned share in conjunction with the intermediate generation share; and (c.) access the unassigned share using the intermediate generation share and the set of other intermediate generation shares.

    AUTHENTICATION SYSTEM
    18.
    发明申请
    AUTHENTICATION SYSTEM 有权

    公开(公告)号：US20230011095A1

    公开(公告)日：2023-01-12

    申请号：US17783166

    申请日：2020-01-15

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

    Inventor： Adrian John Baldwin ,  Thalia May Laing ,  Katherine Wilson ,  Roberto Jordaney

    IPC: H04L9/40

    Abstract: In an example there is provided a method for initiating an auxiliary access protocol in an authentication session. The method comprises providing attestation data attesting to a cause of an outcome of an authentication attempt in an authentication session, accessing a policy to initiate an auxiliary access protocol, determining if the attestation data fulfils a criterion according to the policy and initiating the auxiliary access protocol on the basis of said determination.

    CRYPTOGRAPHIC DEVICES AND SYSTEMS
    20.
    发明申请
    CRYPTOGRAPHIC DEVICES AND SYSTEMS 有权

    公开(公告)号：US20250038962A1

    公开(公告)日：2025-01-30

    申请号：US18716456

    申请日：2021-12-17

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

    Inventor： Thalia May Laing ,  Maugan Cedric Villatel

    IPC: H04L9/08 ,  H04L9/32

    Abstract: Examples relate to machine readable storage storing instructions arranged, when processed, to realise a cryptographic machine readable instructions for signing a message; the instructions comprising: instructions to receive, from a plurality of participating devices of a set of devices, a threshold number of shares of a private key, sk; the shares having been created using a (t,n)-threshold secret sharing scheme, where n>=t and t>n/2; instructions to receive respective state indicia from the plurality of participating devices; the respective state indicia being indicative of the number of messages having been signed using the private key, sk; instructions to recover the private key, sk, using the received shares; instructions to sign a message using a hash-based signature scheme subject to assessing a state indicium indicating the highest number of messages that have been signed using the private key. sk; and instructions to establish a state indicium indicating the highest number of messages, m, that have been signed using the private key, sk.

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