Abuse-resistant object distribution system and method
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United States of America Patent
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-
Mar 21, 1995
Grant Date -
N/A
app pub date -
Aug 16, 1993
filing date -
Aug 16, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Encrypted data objects are distributed via a broadcast communication channel or media. Relatively large access indicia may also be pre-distributed to any potential data object users and/or purchasers via an access communication channel or media. Subsequently, when a particular potential user or purchaser wishes to decrypt a given data object, he or she communicates to a data distribution point the identity of the desired data object and the identity of a valid access incidium. A relatively short decryption key is then furnished via a key distribution communication channel or media to permit decryption while at the same time permitting appropriate accounting operations to take place. The system is resistant to abuse in several ways but in part because such abuse would be approximately as difficult as would be re-distribution of the entire decrypted data object itself.
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