Cryptographic processing device and method for adapting to...

Details Cryptographic processing device and method for adapting to... Cryptographic processing device and method for adapting to...

2009-08-27

2011-11-15

Song, Hosuk (Department: 2435)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C713S192000, C713S193000

Reexamination Certificate

active

08060754

ABSTRACT:
Embodiments of a cryptograph processing device and method for adapting to shared-cache attacks are generally described herein. Other embodiments may be described and claimed. In some embodiments, the cryptographic processing device comprises first and second processing units, and a cache that is shared by the first and second processing units. The first processing unit may monitor a number of cache misses that occur during the performance of a first cryptographic process and may switch to performing a second cryptographic process after the number of cache misses exceeds a threshold.

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patent: 2007/0067840 (2007-03-01), Young
“U.S. Appl. No. 11/216,487, Non Final Office Action mailed Jan. 21, 2009”, 9 pgs.
“U.S. Appl. No. 11/216,487, Notice of Allowance mailed Jun. 16, 2009”, 7 pgs.
“U.S. Appl. No. 11/216,487, Response filed Apr. 3, 2009 to Non Final Office Action mailed Jan. 21, 2009”, 14 pgs.
Percival, Colin, “Cache Missing for Fun and Profit”,Proc. of BSDCan 2005, http://www.daemonology.net/papers/cachemissing.pdf, (2005), 1-13.

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