Invention Grant
- Patent Title: Protection against side-channel attacks by balancing cell drive polarity
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Application No.: US16952119Application Date: 2020-11-19
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Publication No.: US11799627B2Publication Date: 2023-10-24
- Inventor: Ziv Hershman
- Applicant: NUVOTON TECHNOLOGY CORPORATION
- Applicant Address: TW Hsin-chu
- Assignee: NUVOTON TECHNOLOGY CORPORATION
- Current Assignee: NUVOTON TECHNOLOGY CORPORATION
- Current Assignee Address: TW Hsin-Chu
- Agency: KLIGLER & ASSOCIATES PATENT ATTORNEYS LTD
- Main IPC: H04L9/00
- IPC: H04L9/00 ; G06F21/75 ; H03K19/00

Abstract:
An electronic circuit includes a driving cell, one or more driven cells and one or more inverters. The driving cell has two or more inputs and at least one output and is configured to toggle the output between first and second logic states in response to the inputs. Each driven cell has two or more inputs, of which at least one input is configured to be driven by the output of the driving cell. The one or more inverters are placed in a signal network that connects the driving cell to the driven cells. The inverters are configured to balance, over the signal network, (i) a first capacitive load charged by electrical currents caused by transitions from the first logic state to the second logic state and (ii) a second capacitive load charged by electrical currents caused by transitions from the second logic state to the first logic state.
Public/Granted literature
- US20220158817A1 Protection Against Side-Channel Attacks by Balancing Cell Drive Polarity Public/Granted day:2022-05-19
Information query