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Security device including physical unclonable function cells and operation method thereof

A technology of safety device and operation method, which is applied in the direction of safety communication device, computer safety device, electrical components, etc., and can solve the problems of reduced reliability of semiconductor devices or safety devices, etc.

Pending Publication Date: 2020-11-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This bug leads to a reduction in the reliability of semiconductor devices or security devices with PUFs

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

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Embodiment Construction

[0021] Hereinafter, embodiments of the inventive concept may be described in detail and clearly so that those of ordinary skill in the art can easily implement the inventive concept.

[0022] Components described in the detailed description with reference to the terms 'part', 'unit', 'module', 'layer', etc. and functional blocks shown in the drawings may be implemented in the form of software, hardware or a combination thereof. In an embodiment, software may 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, or combinations thereof.

[0023] Also, unless defined differently, all terms (including technical terms or scientific terms) used herein have the same meaning as understood by those skilled in the art to which the present inventi...

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PUM

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Abstract

A security device includes a physical unclonable function (PUF) cell array including a plurality of PUF cells, and a controller configured to control the PUF cell array to generate a security key. Thecontroller includes a receiver configured to receive raw data from the plurality of PUF cells, a mapping table generator configured to extract stable data from the received raw data by discarding unstable data of the received raw data, and generate a mapping table based on stable PUF cells corresponding to the extracted stable data, among the plurality of PUF cells, a PUF cell controller configured to read sensing data from the stable PUF cells, based on the generated mapping table, and a bit determiner configured to generate the security key, based on the read sensing data.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims Korean Patent Application No. 10-2019-0053945 filed with the Korean Intellectual Property Office on May 8, 2019 and Korean Patent Application No. 10 filed with the Korean Intellectual Property Office on August 6, 2019 - Priority of 2019-0095660, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Devices and methods consistent with the embodiments relate to security devices, and more particularly, to security devices including physical unclonable function (PUF) units and methods of operation thereof. Background technique [0004] Technologies for security and encryption are used in communications and mobile devices. Since keys generated in software can be compromised by hackers, a hardware-based security approach is now being developed. [0005] For example, semiconductor devices with physically unclonable functions (PUFs) are b...

Claims

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Application Information

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IPC IPC(8): G06F21/60H04L9/32
CPCG06F21/602H04L9/3278H04L9/0866H04L2209/12G06F21/73H04L9/0877
Inventor 郭成雄
Owner SAMSUNG ELECTRONICS CO LTD
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