Current source for cryptographic processor

Details Current source for cryptographic processor Current source for cryptographic processor

2003-08-29

2009-08-04

Zand, Kambiz (Department: 2434)

Information security

Protection of hardware

Via power supply

C380S001000

Reexamination Certificate

active

07571492

ABSTRACT:
To provide increased security against differential power analysis attacks, a data processing device is provided with a current converter that draws current from an external supply and cyclically apportions drawn current between a charge storage device and a processor such that the drawn current varies independently of the instantaneous power demand of the processor. The data processing device includes: a processor; a charge storage device coupled to the processor; and a current source for supplying the processor with operating current, and adapted to vary its output current independently of the instantaneous power demand of the processor.

REFERENCES:
patent: 6848619 (2005-02-01), Leydier
patent: 7146509 (2006-12-01), Marinet et al.
patent: 1 113 386 (2001-07-01), None
patent: WO 99/49416 (1999-09-01), None
patent: WO 01/08088 (2001-02-01), None

Affiliated with

Also associated with

Rating

Current source for cryptographic processor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current source for cryptographic processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current source for cryptographic processor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4129706