Patents Assigned to COINPLUS, INC.
  • Securing cryptographic data onto a physical medium
    Patent number: 11824983
    Abstract: The present invention relates to a method and a system for inscribing and securely storing cryptographic keys on a physical medium, and to a corresponding physical medium, comprising the following steps: from a first management entity (31), generating (1) a first pair of asymmetric cryptographic keys comprising a first user public key (pub1) and a first user private key (priv1), inscribing (2) the first user private key (priv1) onto a physical medium, and affixing (4) a first tamper-evident concealing element (hol1) to the physical medium in order to conceal the first user private key (priv1) and seal same, said first user private key (priv1) being accessible only by visibly breaking said first tamper-evident concealing element (hol1); from the second management entity (32), generating (6) a second pair of asymmetric cryptographic keys comprising a second user public key (pub2) and a second user private key (priv2), inscribing (7) the second user private key (priv2) onto the physical medium and affixing (9
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: November 21, 2023
    Assignee: COINPLUS, INC.
    Inventors: Yves-Laurent Kayan, Benoit Bertholon, Christian Bodt
  • SECURING CRYPTOGRAPHIC DATA ONTO A PHYSICAL MEDIUM
    Publication number: 20230027241
    Abstract: The present invention relates to a method and a system for inscribing and securely storing cryptographic keys on a physical medium, and to a corresponding physical medium, comprising the following steps: from a first management entity (31), generating (1) a first pair of asymmetric cryptographic keys comprising a first user public key (pub1) and a first user private key (priv1), inscribing (2) the first user private key (priv1) onto a physical medium, and affixing (4) a first tamper-evident concealing element (hol1) to the physical medium in order to conceal the first user private key (priv1) and seal same, said first user private key (priv1) being accessible only by visibly breaking said first tamper-evident concealing element (hol1); from the second management entity (32), generating (6) a second pair of asymmetric cryptographic keys comprising a second user public key (pub2) and a second user private key (priv2), inscribing (7) the second user private key (priv2) onto the physical medium and affixing (9
    Type: Application
    Filed: October 3, 2022
    Publication date: January 26, 2023
    Applicant: COINPLUS, INC.
    Inventors: Yves-Laurent KAYAN, Benoit BERTHOLON, Christian BODT
  • Method and system for securely registering cryptographic keys on a physical medium for cryptographic keys, and physical medium produced
    Patent number: 11463252
    Abstract: The present invention relates to a method and a system for inscribing and securely storing cryptographic keys on a physical medium, and to a corresponding physical medium, comprising the following steps: from a first management entity (31), generating (1) a first pair of asymmetric cryptographic keys comprising a first user public key (pub1) and a first user private key (priv1), inscribing (2) the first user private key (priv1) onto a physical medium, and affixing (4) a first tamper-evident concealing element (hol1) to the physical medium in order to conceal the first user private key (priv1) and seal same, said first user private key (priv1) being accessible only by visibly breaking said first tamper-evident concealing element (hol1); from the second management entity (32), generating (6) a second pair of asymmetric cryptographic keys comprising a second user public key (pub2) and a second user private key (priv2), inscribing (7) the second user private key (priv2) onto the physical medium and affixing (9
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 4, 2022
    Assignee: COINPLUS, INC.
    Inventors: Yves-Laurent Kayan, Benoît Bertholon, Christian Bodt