Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-12-18
2007-12-18
Zand, Kambiz (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S155000, C713S156000, C713S175000, C726S028000, C726S010000, C705S059000
Reexamination Certificate
active
09945273
ABSTRACT:
A content distribution system allowing user authentication to be performed to identify a user in content transaction, thereby permitting the content to be used. The content is distributed with a secure container. The secure container includes the content enciphered with a content key and container information in which the content transaction condition is set. The container information includes an identification certificate identifier list. An identification certificate contains a template serving as personal identification data of a user who is to receive the content and it is identified in accordance with the list. A service provider, a user device, or the like authenticates the user in accordance with the identified certificate, and then permits the content to be used.
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Futamura Ichiro
Ishibashi Yoshihito
Kon Masashi
Matsuyama Shinako
Watanabe Hideaki
Simitoski Michael J
Sonnenschein Nath & Rosenthal LLP
Sony Corporation
Zand Kambiz
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