Invention Grant
- Patent Title: Countermeasure against fault injection attacks
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Application No.: US17853612Application Date: 2022-06-29
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Publication No.: US12111931B2Publication Date: 2024-10-08
- Inventor: Uri Weinrib , Barak Cherches , Clive David Bittlestone
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Xianghui Huang; Frank D. Cimino
- Main IPC: G06F13/24
- IPC: G06F13/24 ; G06F21/52 ; G06F21/56

Abstract:
A method includes programming first and second values and a first compare enable command into respective first operand, second operand, and first compare enable command registers in a hardware comparator circuit. The method includes determining that a first match exists corresponding to the first and second values, programming a third value into the first operand register and a fourth value into the second operand register, and programming a second compare enable command into a second compare enable command register in the hardware comparator circuit. In response to a determination that a second match exists corresponding to the third and fourth values, the method includes asserting a success interrupt signal, programming a fifth value into the first operand register and a sixth value into the second operand register and programming a second compare enable command into a second compare enable command register in the hardware comparator circuit.
Public/Granted literature
- US20230214490A1 COUNTERMEASURE AGAINST FAULT INJECTION ATTACKS Public/Granted day:2023-07-06
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