METHOD AND APPARATUS TO PROTECT SENSITIVE INFORMATION ON MEDIA PROCESSING DEVICES

    公开(公告)号:US20190278539A1

    公开(公告)日:2019-09-12

    申请号:US15914683

    申请日:2018-03-07

    Abstract: Methods and apparatus to protect sensitive information on media processing devices are disclosed. An example media processing device includes a processing engine configured to process a media processing instruction received at the media processing device, wherein the media processing instruction includes a command and data to cause a component of the media processing device to perform a function; and a data protector configured to determine whether the command is a data protection command; and when the command is the data protection command, modify the function to provide protection to the data.

    Sensor Data Authentication
    3.
    发明公开

    公开(公告)号:US20230299970A1

    公开(公告)日:2023-09-21

    申请号:US17697648

    申请日:2022-03-17

    CPC classification number: H04L9/3247 H04L9/3263 H04L9/0825

    Abstract: In some implementations, a device may transmit, to an authentication server, a certificate signing request (CSR) based on a private key stored on a data logger, wherein the data logger is integrated with a sensor within the device. The device may receive, via the data logger and from the authentication server, a signed device certificate based on the CSR. Additionally, the device may receive, via the data logger and from the authentication server, a signed owner certificate associated with a controller. The device may receive, via the data logger and from the controller, a command signed using the owner certificate. Accordingly, the device may store, in the data logger, measurements from the sensor based on the command. The device may generate a data structure including the stored measurements, wherein the data structure is signed using the signed device certificate. The device may transmit, to the authentication server, the data structure.

    Methods and apparatus to renew digital certificates

    公开(公告)号:US12301731B2

    公开(公告)日:2025-05-13

    申请号:US16456663

    申请日:2019-06-28

    Abstract: An example disclosed method for use in a device configured to communicate using digital certificates includes, in response to a request, receiving a digital certificate for use in secure communications between the device and another device; evaluating, using a logic circuit, the digital certificate to determine a validity of the digital certificate; when the digital certificate is valid, allowing use of the digital certificate by the device; and when the digital certificate is invalid, preventing use of the digital certificate by the device.

    Provisioning system for cloud-connected printers

    公开(公告)号:US11336466B1

    公开(公告)日:2022-05-17

    申请号:US17118046

    申请日:2020-12-10

    Abstract: A method, in a provisioning server, of provisioning a printer, includes: receiving a provisioning request from the printer, the provisioning request containing (i) a printer identifier, and (ii) an account identifier associated with the printer; obtaining, from a digital certificate issuer, a unique string; sending the unique string to the printer; receiving from the printer, in response to sending the unique string, a certificate signing request containing (i) the printer identifier, (ii) the account identifier, and (iii) an authentication token including the unique string signed with a private key of the printer; validating the certificate signing request; passing the validated certificate signing request to the digital certificate issuer; receiving, from the digital certificate issuer, a digital certificate encoding the printer identifier and the account identifier; and providing the digital certificate to the printer for storage.

    Provisioning System for Cloud-Connected Printers

    公开(公告)号:US20250080361A1

    公开(公告)日:2025-03-06

    申请号:US18265943

    申请日:2021-11-11

    Abstract: A method, in a provisioning server, of provisioning a printer, includes: receiving a provisioning request from the printer, the provisioning request containing (i) a printer identifier, and (ii) an account identifier associated with the printer; obtaining, from a digital certificate issuer, a unique string; sending the unique string to the printer; receiving from the printer, in response to sending the unique string, a certificate signing request containing (i) the printer identifier, (ii) the account identifier, and (iii) an authentication token including the unique string signed with a private key of the printer; validating the certificate signing request; passing the validated certificate signing request to the digital certificate issuer; receiving, from the digital certificate issuer, a digital certificate encoding the printer identifier and the account identifier; and providing the digital certificate to the printer for storage.

Patent Agency Ranking