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:
Jul. 31, 2012
Filed:
May. 30, 2008
Bong-seon Kim, Seongnam-si, KR;
Yong-kuk You, Seoul, KR;
Chang-sup Ahn, Seoul, KR;
So-young Lee, Suwon-si, KR;
Ji-young Moon, Hwaseong-si, KR;
Bong-seon Kim, Seongnam-si, KR;
Yong-kuk You, Seoul, KR;
Chang-sup Ahn, Seoul, KR;
So-young Lee, Suwon-si, KR;
Ji-young Moon, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
Provided is a method of preventing digital content from being used despite the presence of copy control information. In the method, a security apparatus capable of restricting use of contents generates a nonce with respect to a storage device and stores the nonce in the storage device and a memory separated from the storage device when content is stored in the storage device; updates the nonces stored in the memory and storage device when movement of the content occurs; and permits use of the content only when the nonce of the storage device, which is stored in the memory, is equal to the nonce stored in the storage device if the content is requested for use, thereby preventing a disk cloning attack.