Patent ID: 8671402
Filing Date: 2014-03-11
Classification: G06F

Abstract:
1. A method comprising: coupling to a first computer a removable non-transitory computer-readable storage medium, wherein said removable non-transitory computer-readable storage medium is already storing data representing images at a time of an initial coupling; sending, from the first computer to a second computer, an identification information of the first computer and a request for identification information of an authorized image version the first computer is authorized to maintain; receiving, at the first computer from the second computer, identification information of the authorized image version; determining, by the first computer, whether said data already stored by the removable non-transitory computer-readable medium at the time of the initial coupling includes the authorized image version; preventing any data representing an unauthorized image version to be loaded by the first computer from the removable non-transitory computer-readable storage medium; responsive to the first computer determining that said data stored by the removable non-transitory computer-readable medium includes the authorized image version, loading, by the first computer, the data representing the authorized image version from the removable non-transitory computer-readable storage medium to a logically protected region of the first computer; and responsive to determining that no data representing the authorized image version is stored on the non-transitory removable computer-readable storage medium, outputting data indicating that no data representing the image version exists on the removable non-transitory computer-readable storage medium.