The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2013
Filed:
Sep. 22, 2011
Sin-hyo Kim, Daejeon, KR;
Yun-kyung Lee, Daejeon, KR;
Byung-ho Chung, Daejeon, KR;
Hye-ran Mun, Gwangju, KR;
Sang-woo Lee, Daejeon, KR;
Sok-joon Lee, Daejeon, KR;
Jung-yeon Hwang, Suwon, KR;
Gun-tae Bae, Daejeon, KR;
Hyun-sook Cho, Daejeon, KR;
Sin-Hyo Kim, Daejeon, KR;
Yun-Kyung Lee, Daejeon, KR;
Byung-Ho Chung, Daejeon, KR;
Hye-Ran Mun, Gwangju, KR;
Sang-Woo Lee, Daejeon, KR;
Sok-Joon Lee, Daejeon, KR;
Jung-Yeon Hwang, Suwon, KR;
Gun-Tae Bae, Daejeon, KR;
Hyun-Sook Cho, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
The present invention relates to a content protection apparatus and method using binding of additional information to an encryption key. The content protection apparatus includes an encryption unit for creating an encryption key required to encrypt data requested by a user terminal and then generating encrypted data in which the data is encrypted. An additional information management unit manages additional information including authority information about the encrypted data. A White-Box Cryptography (WBC) processing unit generates a WBC table required to bind the encryption key corresponding to the encrypted data to the additional information. A bound data generation unit generates bound data in which the encrypted key is bound to the additional information, using a cipher included in the WBC table.