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:
Apr. 17, 2012
Filed:
Apr. 25, 2006
Myung-sun Kim, Uiwang-si, KR;
Young-sun Yoon, Suwon-si, KR;
Sun-nam Lee, Suwon-si, KR;
Bong-seon Kim, Seongnam-si, KR;
Jae-heung Lee, Suwon-si, KR;
Sung-hyu Han, Seoul, KR;
Myung-sun Kim, Uiwang-si, KR;
Young-sun Yoon, Suwon-si, KR;
Sun-nam Lee, Suwon-si, KR;
Bong-seon Kim, Seongnam-si, KR;
Jae-heung Lee, Suwon-si, KR;
Sung-hyu Han, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A method and apparatus for managing digital content, which can detect the leakage of an encryption key when the encryption key used for encrypting the digital content is leaked or cracked. When the encrypted digital content is decrypted by an illegal device, a module linked with the encrypted digital content is automatically driven and a digital content managing apparatus is then notified that the encrypted digital content has been decrypted by the illegal device such that the digital content managing apparatus can change the encryption key. Thus, it is possible to prevent the digital content from being continuously leaked due to the use of the same encryption key for encrypting subsequent digital content.