Patents by Inventor Shiho KODERA

Shiho KODERA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Information management device to set expiration dates of bloom filters
    Patent number: 10965471
    Abstract: According to one embodiment, an information management device includes a Bloom filter generator configured to generate a Bloom filter based on information on a revoked certificate; a data distributor configured to send the Bloom filter to an authentication device, the authentication device authenticates a device with a certificate provided by the device; and an examiner configured to determine, when an examination request is received from the authentication device, whether an certificate designated by the examination request has been revoked based on revocation management information that contains information on the revoked certificate, and to send an examination result indicating whether the designated certificate has been revoked to the authentication device.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: March 30, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shiho Kodera, Keisuke Minami, Daisuke Ajitomi
  • INFORMATION MANAGEMENT DEVICE, AUTHENTICATION DEVICE, INFORMATION MANAGEMENT SYSTEM, INFORMATION MANAGEMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM
    Publication number: 20190280882
    Abstract: According to one embodiment, an information management device includes a Bloom filter generator configured to generate a Bloom filter based on information on a revoked certificate; a data distributor configured to send the Bloom filter to an authentication device, the authentication device authenticates a device with a certificate provided by the device; and an examiner configured to determine, when an examination request is received from the authentication device, whether an certificate designated by the examination request has been revoked based on revocation management information that contains information on the revoked certificate, and to send an examination result indicating whether the designated certificate has been revoked to the authentication device.
    Type: Application
    Filed: September 12, 2018
    Publication date: September 12, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shiho KODERA, Keisuke MINAMI, Daisuke AJITOMI