| 摘要 |
One embodiment of the present invention provides a system for verifying the legitimacy of a digital media file, including an analysis module for determining control information associated with the digital media file and for computing a known hash value that uniquely identifies the digital media file, and a verification module for computing a verification hash value from the analyzed digital media file received, and for comparing that verification hash value to the known hash value to verify the analyzed digital media file received has not been compromised. Another embodiment of the present invention provides a method for verifying the legitimacy of a digital media file previously established as legitimate.
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