Electrical computers and digital processing systems: support – Data processing protection using cryptography
Reexamination Certificate
2011-07-12
2011-07-12
Jung, David Y (Department: 2431)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
C713S300000, C713S001000
Reexamination Certificate
active
07979721
ABSTRACT:
A pay-per-use computer, or other electronic device that uses local security, may use a security module or other circuit for monitoring and enforcement of a usage policy. To help prevent physical attacks on the security module, or the circuit board near the security module, a second circuit may be mounted over the security module to help prevent access to the security module. Both circuits may be mounted on a interposer and the interposer mounted to the circuit board, creating a stack including the first circuit, the interposer, the security module, and a main PC board. When the PC board includes dense signal traces under the security module a three dimensional envelope is created around the security module. When the first circuit is a high value circuit, such as a Northbridge, the risk/reward of attacking the security module is increased substantially and may deter all but the most determined hackers.
REFERENCES:
patent: 6690556 (2004-02-01), Smola et al.
patent: 2006/0055506 (2006-03-01), Nicolas
patent: 2006/0107328 (2006-05-01), Frank et al.
Reconfiguration security for hardware agents in testing; Dan Mois, George; Flonta, Stelian; Stefan, lulia; Enyedi, Szilard; Miclea, Liviu Cristian; Automation Quality and Testing Robotics (AQTR), 2010 IEEE International Conference on vol. 2; Publication Year: 2010 , pp. 1-5.
Reconfigurable security protection system based on NetFPGA and embedded soft-core technology ; Kai Zhang; Xiaoming Ding; Ke Xiong; Yunting Zhao; Computer Design and Applications (ICCDA), 2010 International Conference on vol. 5; Publication Year: 2010 , pp. V5-540-V5-544.
A Proof of concept on defending cold boot attack; Joo Guan Ooi; Kok Horng Kam; Quality Electronic Design, 2009. ASQED 2009. 1st Asia Symposium on; Publication Year: 2009 , pp. 330-335.
International Search Report for PCT/US2007/087960 mailed Apr. 22, 2008.
Written Opinion for PCT/US2007/087960 mailed Apr. 22, 2008.
Eren et al., “Fringe-Effect Capacitive Proximity Sensors for Tamper Proof Enclosures” In: Proceedings of 2005 Sensors for Industry Conference, Feb. 8-10, 2005, pp. 22-25.
Carpenter Todd L.
Drake Stephen Richard
Foster David James
Frank Alexander
Schmidt Shon
Jung David Y
Microsoft Corporation
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