Unlock instant, AI-driven research and patent intelligence for your innovation.

A two-state physical unclonable function circuit

A functional circuit and physical technology, applied in the field of two-state physical unclonable functional circuits

Active Publication Date: 2022-05-13
HUNAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, several typical PUFs currently proposed, such as Static Random-Access Memory (SRAM) PUF, oscillator PUF, and glitch PUF are susceptible to response flipping due to environmental factors, and their reliability needs to be enhanced in practical applications.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A two-state physical unclonable function circuit
  • A two-state physical unclonable function circuit
  • A two-state physical unclonable function circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms without being limited by the embodiments set forth herein.

[0044] In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to the technical field of physical unclonable functions, in particular to a two-state physical unclonable function circuit, the circuit comprising: a signal drive circuit converting received serial excitation signals and serial configuration signals into parallel signals; several Two-state physical unclonable function circuit unit, each unit obtains a response according to the excitation signal and configuration signal; the timing control circuit ensures that the circuit works according to the designed timing; the parallel / serial converter circuit realizes the serial output of multi-bit responses. Each two-state physical unclonable function circuit unit includes: the state configuration circuit switches the working state of the circuit according to the configuration signal; the amplifier chain circuit amplifies the signal with process deviation; the response readout circuit selects the unit according to the excitation signal and outputs response. A highly reliable key is generated by setting this circuit.

Description

technical field [0001] The invention relates to the technical field of physical unclonable circuits, in particular to a two-state physical unclonable function circuit. Background technique [0002] Silicon-based physical unclonable function (Silicon-PUF), as a new hardware security primitive, depends on the deviation of integrated circuit process, can determine the "stimulus-response" mapping relationship, and inherits the randomness and uncontrollability of process deviation and uniqueness. Compared with traditional cryptography schemes, PUF has the characteristics of no key storage, ready-to-use and low overhead, and is more suitable for scenarios with limited equipment resources such as the Internet of Things and edge computing. Existing PUFs can be classified into strong PUFs and weak PUFs according to the size of the stimulus-response pair (CRPs) space. Strong PUFs possess a large number of CRPs and are widely used for IoT device authentication. Although limited CRPs...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32
CPCH04L9/3278
Inventor 张吉良陈卓俊李文商关振宇
Owner HUNAN UNIV