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Registered METHOD AND APPARATUS FOR DETECTING DOWNLOADABLE CONDITIONAL ACCESS SYSTEM HOST WITH DUPLICATED SECURE MICRO

복제된 보안 모듈을 갖는 다운로더블 제한 수신 호스트를 감지하는 방법 및 그 장치
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Inventors
Jeong Young Ho, Lee Soo In, Kwon O Hyung
Application No.
12256599 (2008.10.23)
Publication No.
20090158395 (2009.06.18)
Registration No.
8490155 (2013.07.16)
Country
UNITED STATES
Project Code
07MR3400, The Development of Downloadable Conditional Access System, Kwon O Hyung
Abstract
A method where a Downloadable Conditional Access System Provisioning Server (DPS) detects a duplicated secure micro is provided. A method of detecting a duplicated secure micro, the method including: generating authentication time difference information associated with a value of a difference between a time when a host is finally authenticated in a first address and a time when the host is authenticated in a second address; comparing the authentication time difference information with a first reference value and a second reference value, the second reference value being less than the first reference value; and determining whether the secure micro is duplicated based on a result of the comparing.
KSP Keywords
Conditional access system, Reference value, System host, conditional access, time difference