Invention Grant
US09444618B1 Defense against attacks on ring oscillator-based physically unclonable functions
有权
防止对基于环形振荡器的物理不可克隆功能的攻击
- Patent Title: Defense against attacks on ring oscillator-based physically unclonable functions
- Patent Title (中): 防止对基于环形振荡器的物理不可克隆功能的攻击
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Application No.: US13867429Application Date: 2013-04-22
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Publication No.: US09444618B1Publication Date: 2016-09-13
- Inventor: Stephen M. Trimberger , Austin H Lesea
- Applicant: Xilinx, Inc.
- Applicant Address: US CA San Jose
- Assignee: XILINX, INC.
- Current Assignee: XILINX, INC.
- Current Assignee Address: US CA San Jose
- Agent LeRoy D. Maunu
- Main IPC: H04L9/00
- IPC: H04L9/00 ; H04L9/34
Abstract:
Circuits and methods are disclosed for defending against attacks on ring oscillator-based physically unclonable functions (RO PUFs). A control circuit that is coupled to the RO PUF is configured to detect out-of-tolerance operation of the RO PUF. In response to detecting out-of-tolerance operation of the RO PUF, the control circuit disables the RO PUF, and in response to detecting in-tolerance operation, the control circuit enables the RO PUF.
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