Cryptography – Key management – Key distribution
Reexamination Certificate
2005-11-08
2010-12-07
Dada, Beemnet W (Department: 2435)
Cryptography
Key management
Key distribution
Reexamination Certificate
active
07848526
ABSTRACT:
A method of receiving a session key in a home network and a method of reproducing content using the same. The method of receiving a session key from a home server in a home network, includes: (a) whenever one of members of the home network changes, receiving and storing the session key and a session version indicating a session key generation sequence; (b) receiving a license necessary for reproducing predetermined content; and (c) determining a session key necessary for reproducing the predetermined content based on an encoding session version (ESV), which is a session version extracted from the license, and the stored session version. A home server transmits a session key and a session version to a user device whenever a subscriber to a home network changes, and the user device determines a session key using the session version, thereby performing a variety of domain administration by freely transmitting content between user devices.
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Han Sung-hyu
Kim Bong-seon
Kim Myung-sun
Lee Jae-heung
Yoon Young-sun
Dada Beemnet W
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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