Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-10-03
2006-10-03
Song, HoSuk (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C380S277000
Reexamination Certificate
active
07117362
ABSTRACT:
Contents and its key are supplied in different procedures. License management program authenticates telephone-integrated terminal device and authenticates first server or second server. Server LCM controls the reception of contents and key transmission requests and of data for identifying first server or second server. If data for identifying first server are received, contents and its key are received from first server in a procedure corresponding to first server. If data for identifying said server are received, contents and its key are received from second server in a procedure corresponding to second server. Server LCM controls the transmission of contents and its key to telephone-integrated terminal device.
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Eberhard von Faber et al., “The Secure Distribution of Digital Contents,” IEEE Proceedings, Annual Computer Security Applications Conference, XP-002141599, Dec. 8, 1997, pp. 16-22.
Go Naomi
Kurihara Akira
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Song HoSuk
Sony Corporation
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