Method for enhancing system reliability based on physical unclonable function

A technology to enhance system and reliability, applied in the field of information security, can solve the problems of reduced server work efficiency, increased server load, less applicable scenarios, etc., to achieve good uniqueness, reduce data storage, and reduce costs.

A technology to enhance system and reliability, applied in the field of information security, can solve the problems of reduced server work efficiency, increased server load, less applicable scenarios, etc., to achieve good uniqueness, reduce data storage, and reduce costs.

CN111865617AActive Publication Date: 2020-10-30SHANGHAI JIAO TONG UNIV
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  • Method for enhancing system reliability based on physical unclonable function
  • Method for enhancing system reliability based on physical unclonable function
  • Method for enhancing system reliability based on physical unclonable function

Examples

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Embodiment Construction

[0037] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. A preferred embodiment of the application is shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0038] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commo...

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Abstract

The invention discloses a method for enhancing system reliability based on a physical unclonable function. The method comprises the following steps thata client requests data transmission with a server; the server randomly selects a plurality of MOS devices in the MOS array and acquires position information of the MOS devices; the server calculates the time constants of the defects in the MOS devices according to the stored intrinsic parameters of the defects in the MOS devices, then calculates the probability physical unclonable function that the defects in the MOS devices are occupied by carriers, and builds a probability model; the server randomly generates detection time according to the probability model and sends the detection time and the position information to a client; and the server judges the probability that the defects in the plurality of MOS devices are occupied under the detection time according to the probability model and generates a theoretical value secret key, wherein the theoretical value secret key comprises a theoretical authentication bit and a theoretical uncertain bit.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a method for enhancing system reliability by using a physical unclonable function. Background technique [0002] PUF (Physical Unclonable Function) refers to a multiple-input multiple-output system based on the intrinsic characteristics of hardware devices. Because MOS (Metal Oxide Semiconductor, Metal Oxide Semiconductor) devices will have random differences in the process of doping, aging, etc., and the devices will also show inconsistent behavior with each other, a series of CRPs ( Challenge Response Pairs, incentive response pairs), so as to encrypt the information system. After the first optical system-based PUF hardware was realized, various PUFs based on MOS devices were gradually proposed and applied. Because PUF is completely dependent on the underlying physical characteristics, the response function of the device cannot be derived mathematically. In addit...

Claims

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Application Information

Patent Timeline
30 Oct 2020
Publication
CN111865617A
IPC
H04L9/32
CPC
H04L9/3278; H03K19/17768; H03K19/00315; G11C2029/4402; G11C2029/5002; G11C29/50; G11C7/24; G11C5/146
Inventors
纪志罡; 薛永康