Dummy write operations

Details Dummy write operations Dummy write operations

2011-08-23

2011-08-23

Nguyen, Hiep T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

08006045

ABSTRACT:
A dummy write operation is disclosed that mimics an actual write operation to a memory array. In some implementations, a dummy write operation mimics an actual write operation by starting a charge pump, selecting a correct data line in the memory array, and by following the sequencing of an actual write operation. By mimicking an actual write operation, an attacker cannot use power analysis to distinguish between dummy and actual write operations. For example, PIN comparison operations would present the same or substantially the same power trace for both positive and negative comparisons, making it difficult for an attacker to determine if a retry count was written to NVM.

REFERENCES:
patent: 7206907 (2007-04-01), Poulton et al.
patent: 7301831 (2007-11-01), Ware

Affiliated with

Also associated with

Rating

Dummy write operations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dummy write operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dummy write operations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2749758