Method of and apparatus for reproducing information, and security module
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Abstract
An information reproducing apparatus of the present invention includes a secure module and a main memory. The information in the secure module can not be accessed from outside. The secure module reads, using a direct access method, information relating to software stored in the main memory. The secure module checks a falsification of the software by comparing the information read with the information stored in advance in the secure module.
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Citations
52 Claims
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1-40. -40. (canceled)
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41. An information reproducing apparatus, comprising:
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a secure module that stores a first information, wherein the secure module can not be accessed from outside the information reproducing apparatus;
a memory that stores a second information, wherein the memory can be accessed from outside the information reproducing apparatus; and
a storage control unit that is loaded on the secure module, wherein the storage control unit changes original software information so that a software code changes but functionality of the software code as a whole is maintained, as the second information in the memory. - View Dependent Claims (42, 43, 44, 45, 46)
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47. A secure module mounted to an information reproducing apparatus, comprising:
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a reading unit for reading a second information from a memory mounted to a information reproducing apparatus, by direct access, the memory being accessible from outside the information reproducing apparatus;
a falsification checking unit for comparing the second information with a first information store in the secure module, and checking a falsification of the second information based on a result of the comparison; and
a storage control unit that changes original information, and stores the changed information as the second information into the memory, wherein the storage control unit encrypts the original information using a key that exists in the secure module, and stores the encrypted original information as the second information in the memory. - View Dependent Claims (48, 49, 50, 51, 52)
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Specification