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