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Secure logic system with physically unclonable function

A technology of safety logic and system function, applied in the field of safety logic system using physical unclonable functions

Inactive Publication Date: 2019-05-17
IMQ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although physical unclonable functions can provide the basis for system security, how to effectively and cheaply apply physical unclonable functions to the system to ensure information security is still an issue to be discussed

Method used

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  • Secure logic system with physically unclonable function
  • Secure logic system with physically unclonable function
  • Secure logic system with physically unclonable function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 It is a schematic diagram of a security logic system 100 according to an embodiment of the present invention. The secure logic system 100 includes a physical unclonable function (PUF) device 110, a physical unclonable function register 120, and an encryption circuit 130.

[0036] The physical unclonable function device 110 may establish an encrypted string P1 according to at least a part of the random physical characteristics of the physical unclonable function device 110. The slight variation in the silicon manufacturing process enables the physical unclonable function device 110 to generate a unique encrypted string P1, and the encrypted string P1 can help provide in-depth security protection. For example, the secure logic system 100 can ensure the confidentiality of information by entangled the encrypted string P1 generated by the physical unclonable function device 110 with the seemingly ordinary and concise logical structure, so that each device All have uni...

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PUM

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Abstract

The invention disclose a secure logic system, and the secure logic system includes a physically unclonable function, a physically unclonable function configuration register, and an encryption circuit.The physically unclonable function establishes an encryption string according to at least partial random physical characteristics of the physically unclonable function. The physically unclonable function configuration register is coupled to the physically unclonable function, and load the encryption string from the physically unclonable function. The encryption circuit is coupled to the physically unclonable function configuration register, and manipulates a system string with the encryption string to generate encrypted data.

Description

Technical field [0001] The present invention relates to a safety logic system, especially a safety logic system using a physical unclonable function. Background technique [0002] With the automation of reverse engineering of physical intellectual property, physical attacks and side-channel attacks have become more powerful and more economical, making sensitive information exposed. With the promotion. In order to prevent valuable technologies from being plagiarized by competitors and at the same time to prevent private devices from being accessed by unauthorized persons, process and device masters often need to spend a lot of time and money to develop anti-monitoring methods to avoid threats. [0003] In order to protect the system from external attacks and increase the difficulty of reverse engineering, the characteristics of the physical unclonable function (PUF) integrated circuit make it a feasible method. [0004] An integrated circuit with a physically unclonable function can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCH04L9/004H04L9/0866G06F21/72H04L9/3278
Inventor 马腾桂李轩昂黄仁成
Owner IMQ TECH INC