Cryptography – Video cryptography
Reexamination Certificate
2008-01-29
2008-01-29
Zand, Kambiz (Department: 2134)
Cryptography
Video cryptography
C380S037000, C380S270000, C380S280000, C713S161000, C713S168000, C713S170000, C713S171000, C726S027000, C726S028000, C726S029000, C726S030000
Reexamination Certificate
active
09934674
ABSTRACT:
Between a transmitting device and a receiving device, a first authentication and key exchange procedure depending on a radio link layer network is carried out, and then a whole or a part of a second authentication and key exchange procedure depending on the copyright protected contents data is carried out by using the cipher communication using a first encryption key that is shared between the transmitting device and the receiving device by the first authentication and key exchange procedure, so that the contents data transfer by the cipher communication using a second encryption key can be carried out only between legitimate pair of the transmitting device and the receiving device that can successfully complete the first authentication.
REFERENCES:
patent: 6282656 (2001-08-01), Wang
patent: 6418421 (2002-07-01), Hurtado et al.
patent: 6510236 (2003-01-01), Crane et al.
patent: 6587680 (2003-07-01), Ala-Laurila et al.
patent: 6611812 (2003-08-01), Hurtado et al.
patent: 6839744 (2005-01-01), Kloba et al.
patent: 6889321 (2005-05-01), Kung et al.
patent: 2001/0042043 (2001-11-01), Shear et al.
patent: 2003/0093669 (2003-05-01), Morais et al.
patent: 0 915 590 (1999-05-01), None
patent: 2000-174797 (2000-06-01), None
Bluetooth Specification, Version 1.0 B, vol. 1 (CORE), Part B, pp. 149-178, XP-002213095, “Bluetooth Security”, Dec. 1, 1999.
DTCP, Revision 1.0 ‘Online’, pp. 1-13, XP-002213172, “5C Digital Transmission Content Protection White Paper”, Jul. 14, 1998.
J. Yoshida, et al., The Electronics Design, Technology & News Network, ‘Online’, Communications Design Conference, pp. 1-5, XP-002214265, “Hollywood Objections Threaten Content-Protection Scheme”, Oct. 18, 1999.
U.S. Appl. No. 09/934,674, filed Aug. 23, 2001, Saito.
U.S. Appl. No. 10/729,964, filed Dec. 9, 2003, Isozaki et al.
U.S. Appl. No. 09/404,547, filed Sep. 24, 1999, pending.
U.S. Appl. No. 10/352,128, filed Jan. 28, 2003, Saito et al.
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Tran Tongoc
Zand Kambiz
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