Back to results
US 9,430,678 B2Granted
Charge distribution control for secure systems
AssigneeChaologix, Inc.
InventorsDaniel F. Yannette, Brent Arnold Myers
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeChaologix, Inc.
InventorsDaniel F. Yannette, Brent Arnold Myers
Estimating the term…
Advantageous analog and/or digital logic cells and methods of powering circuit blocks using the same are provided. A digital logic cell can include a charge storage device, a logic block, and connections to a power supply. The charge storage device may be a capacitor. The capacitor or other charge storage device can be disconnected from the logic block and a power supply to discharge the capacitor, and then connected to the power supply, via the power supply connections, to charge the capacitor. The capacitor can be disconnected from a ground connection of the power supply while the capacitor is discharged. After being charged via the power supply, the capacitor can also be disconnected from the power supply (including ground) and connected to the logic block to power the logic block.
A method of protecting against at least one side channel attack from the group consisting of differential power analysis, simple power analysis, leakage current analysis, differential electromagnetic field analysis, timing analysis, heat, acoustic analysis, fault injection and differential fault analysis, the method comprising:
A secure system comprising:
A secure system, comprising a charge storage device controllably connected to a power connection of a power supply by at least a first transistor connected in series with a second transistor and controllably connected to a ground connection of the power supply by at least a third transistor connected in series with a fourth transistor.
Dependencies are inferred from the claim text.