Information security – Prevention of unauthorized use of data including prevention... – Copy inactivation
Reexamination Certificate
2006-12-28
2011-12-06
Orgad, Edan (Department: 2439)
Information security
Prevention of unauthorized use of data including prevention...
Copy inactivation
C726S032000, C726S031000
Reexamination Certificate
active
08074290
ABSTRACT:
A content transfer system for transferring content between a source device transmitting the content and a sink device receiving the content, includes a content specifying unit for specifying the content to be transferred between the source device and the sink device, an authentication unit for performing an authentication exchange key process between the source device and the sink device, a content transfer unit for performing a content transfer process by encrypting and transferring the content specified by the content specifying unit from the source device to the sink device using the key exchanged by the authentication unit, and a content transfer finalizing unit for performing a content transfer finalizing process by validating the content at the sink device and invalidating the original content at the source device in response to the end of the content transfer process performed by the content transfer unit, the content thus being moved from the source device to the sink device.
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Nakano Takehiko
Shima Hisato
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Olion Brian
Orgad Edan
Sony Corporation
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