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Apparatus and method for preventing file access by nodes of a protected system

  • US 10,205,726 B2
  • Filed: 03/27/2017
  • Issued: 02/12/2019
  • Est. Priority Date: 06/03/2016
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one interface configured to be coupled to a storage device; and

    at least one processing device configured to;

    detect the storage device;

    determine whether the storage device has been checked-in for use with at least the apparatus;

    grant access to the storage device in response to determining that the storage device has been checked-in for use with at least the apparatus;

    block access to the storage device in response to determining that the storage device has not been checked-in for use with at least the apparatus;

    after granting access to the storage device, determine whether a file on the storage device has been checked-in for use with at least the apparatus;

    grant meaningful access to the file on the storage device in response to determining that the file has been checked-in for use with at least the apparatus; and

    block meaningful access to the file on the storage device in response to determining that the file has not been checked-in for use with at least the apparatus;

    wherein, to determine whether the storage device has been checked-in, the at least one processing device is configured to determine whether at least one component of a file system of the storage device has been modified using an encryption method and a locally-stored certificate or private key; and

    wherein, when the at least one component of the file system of the storage device has been modified using the encryption method and the locally-stored certificate or private key, nodes outside of a protected system cannot recognize the file system of the storage device.

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