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:
Dec. 29, 2009
Filed:
Jul. 20, 2009
Young-soon Cho, Pyungtaek, KR;
Myeong-joon Kang, Pyungtaek, KR;
Jae-young Kim, Seoul, KR;
Han Jung, Seoul, KR;
Young-Soon Cho, Pyungtaek, KR;
Myeong-Joon Kang, Pyungtaek, KR;
Jae-Young Kim, Seoul, KR;
Han Jung, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A device and method for decrypting digital contents are discussed. According to an embodiment, a method for decrypting digital content at a target device, includes receiving the digital content without a source encryption key from a source device connected to the target device, the digital content having been encrypted with the source encryption key in the source device, wherein the source device is configured to perform an authenticating operation with the target device by using an identifier (ID) associated with at least one of the target device and a storage medium of the target device; performing an addition operation by using a target internal key and the ID, the target internal key being associated with the target device; generating a target encryption key based on an output of the addition operation; and decrypting the encrypted digital content by using the target encryption key.