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Security device including physical unclonable function cells and operation method thereof

A technology for safety equipment and functions, which is applied in safety communication devices, electrical components, electrical digital data processing, etc., and can solve problems such as reducing the reliability of safety equipment.

Pending Publication Date: 2022-02-18
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the PUF generates a random key based on PVT variation, an error may occur at the key due to various environmental factors, resulting in reduced reliability of the semiconductor device and / or security device having the PUF

Method used

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  • Security device including physical unclonable function cells and operation method thereof
  • Security device including physical unclonable function cells and operation method thereof
  • Security device including physical unclonable function cells and operation method thereof

Examples

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Embodiment Construction

[0030] Some example embodiments of the inventive concepts may be described in detail below with reference to the accompanying drawings to help clearly explain the inventive concepts.

[0031] Components described in the detailed description with reference to the terms "part", "unit", "module", "layer", etc. and / or functional blocks shown in the drawings may be implemented in the form of software, hardware and / or a combination thereof accomplish. For example, software can be machine code, firmware, embedded code, and application software. For example, hardware may include circuits, electronic circuits, processors, computers, integrated circuits, integrated circuit cores, pressure sensors, inertial sensors, microelectromechanical systems (MEMS), passive components, and / or combinations thereof.

[0032] Also, unless otherwise defined, all terms (including technical terms or scientific terms) used herein have the same meanings as understood by those skilled in the art to which th...

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PUM

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Abstract

A security device includes a physical unclonable function (PUF) cell array including PUF cells connected with word lines and bit lines; first decoder circuitry connecting a first bit line connected to a target PUF cell with a first data line and a second bit line connected with a reference PUF cell to a second data line; a digital-to-analog converter (DAC) control circuit outputting first and second digital codes; a first DAC between a power supply voltage and the first data line, the first DAC generating a first analog output in response to the first digital code; a second DAC between the power supply voltage and the second data line, the second DAC generating a second analog output in response to the second digital code; and a sense amplifier comparing the first analog output and the second analog output and outputting a comparison result.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2020-0098799 filed in the Korean Intellectual Property Office on Aug. 6, 2020, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Example embodiments of the inventive concepts described herein relate to a security device, and more particularly, to a security device including a Physical Unclonable Function (PUF) unit and an operating method thereof. Background technique [0004] Among technologies for mobile devices and communication technologies, technologies associated with security and encryption have become important. Since keys generated in software can be compromised through hacking and / or spoofing, hardware-based security approaches are being developed today. [0005] For example, semiconductor devices with physically unclonable functions (PUFs) are being developed. PUF refers to the function ...

Claims

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Application Information

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IPC IPC(8): G06F21/73G11C7/12G11C7/16G11C8/08G11C8/10
CPCG06F21/73G11C7/16G11C7/12G11C8/08G11C8/10G11C7/06G11C2029/4402G11C2029/5002G11C29/50H04L9/3278H04L2209/12G06F21/72H03M1/765G06F21/107H04L9/0866H03M1/66H03M1/662
Inventor 申晧荣郭成雄金志星姜信旭
Owner SAMSUNG ELECTRONICS CO LTD