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:
Feb. 03, 2015
Filed:
Dec. 21, 2009
Eun Jung Kwon, Daejeon, KR;
Han Seung Koo, Daejeon, KR;
Soon Choul Kim, Daejeon, KR;
Heejeong Kim, Daejeon, KR;
Young Ho Jeong, Daejeon, KR;
O Hyung Kwon, Daejeon, KR;
Soo IN Lee, Daejeon, KR;
Eun Jung Kwon, Daejeon, KR;
Han Seung Koo, Daejeon, KR;
Soon Choul Kim, Daejeon, KR;
Heejeong Kim, Daejeon, KR;
Young Ho Jeong, Daejeon, KR;
O Hyung Kwon, Daejeon, KR;
Soo In Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A mutual authentication method in a Downloadable Conditional Access System (DCAS) is provided. The mutual authentication method may receive authentication-related information about authentication between an authentication unit and a security module (SM) from a Trusted Authority (TA), generate an authentication session key using the authentication-related information, transmit the authentication session key by the authentication unit to the SM through a Cable Modem Termination System (CMTS), and control a Conditional Access System (CAS) software to be downloaded to the SM from the authentication unit, when the authentication is completed by the authentication session key.