Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2011-08-23
2011-08-23
Worjloh, Jalatee (Department: 3685)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S050000, C705S051000, C705S052000, C705S057000, C705S058000, C726S026000, C726S027000, C726S028000, C726S029000, C726S030000, C380S200000, C380S201000, C380S202000, C380S203000
Reexamination Certificate
active
08005758
ABSTRACT:
A method and apparatus for encrypting or decrypting digital content are provided. In the method, a binding range is selected from a plurality of binding ranges of content use based on license information of the content, and the content is encrypted based on the selected binding range so that the content can be used only within the selected binding range. Accordingly, it is possible to limit content use to a plurality of binding ranges of use of the content, using license information of the content.
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Choi Moon-young
Han Sung-hyu
Kim Bong-seon
Kim Myung-sun
Lee Jae-Heung
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
Worjloh Jalatee
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