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Hardware circuit safety detection method and device

A detection device and security technology, applied in the field of computer hardware security detection, can solve problems such as unfavorable redundant circuit extraction and equivalent state, security detection method failure and the like

Active Publication Date: 2019-02-22
北京中科睿芯科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the integration level of the circuit is getting higher and higher, the state of the circuit will become more and more, which is not conducive to the extraction of redundant circuits and the conversion of equivalent states, making the method of safety detection invalid
[0004] For the above-mentioned detection failure problem in the prior art, there is an urgent need for a method and device for hardware circuit safety detection to adapt to circuit safety detection with different integration levels

Method used

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  • Hardware circuit safety detection method and device
  • Hardware circuit safety detection method and device
  • Hardware circuit safety detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In a specific embodiment, combined with figure 1 As shown, the safety detection device of the present invention can be realized in the following ways:

[0044] The device includes: a signal generation component, a storage component, a drive component, an interface component, a monitoring window component, an interface component 1, an interface component 2, and an analysis component;

[0045] The signal generation component is connected to the storage component, the storage component is connected to the drive component, and the drive component is connected to the interface component one;

[0046] The second interface component is connected to a monitoring window component, and the monitoring window component is connected to an analysis component;

[0047] The first interface part is connected to the input of the circuit module to be tested, and the second interface part is connected to the output of the circuit module to be tested.

[0048]It should be pointed out here...

Embodiment 2

[0063] The invention designs a set of hardware circuit safety detection method and device for hardware circuits with different integration degrees. By obtaining the internal signal and output signal of the circuit, it is analyzed for safety detection. After the circuit is connected and operated with the inventive device, the output generated by the device is counted to obtain the safety result of the circuit. In a specific embodiment, the device provided by the present invention can be as figure 1 The way shown is achieved:

[0064] The whole device includes seven components. Driven by the clock, the execution of the device passes through the signal generation component, the storage component, the drive component, the interface component, the monitoring window and the detection component in sequence. in:

[0065] The signal generating part is mainly composed of a seed signal generator and a mode selector. The mode selector selects the way to generate the signal value, incl...

Embodiment 3

[0081] Hereinafter, the detection method of the present invention will be described in detail through a specific example. First illustrate that the circuit selected in the present invention can be any RTL level circuit, and the general block diagram of safety detection is as follows: figure 2 As shown, the input acts on the detection device and the circuit module, and a safety detection result is generated after a specific time. The specific process is described as follows, the process is as follows image 3 Shown:

[0082] Step 1: If Figure 4 As shown, assume that the signal generation component only generates 7 groups of signal values, that is, set the number of generated groups to 7, the seed mode uses an incremental form, and the signal value generated for the first time is I 1 , the signal value generated for the second time is I 2 , until the signal value generated for the 7th time is I 7 ;

[0083] Step 2, the signal value I produced by step 1 1 ~ I 7 It is st...

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Abstract

The invention provides a hardware circuit safety detection method and device which are suitable for circuit safety detection with different integrated levels. The device comprises seven components. The execution of the device is driven by the clock component so as to successively pass through a signal generating component, a storage component, a driving component, an interface component, a monitoring window, and an analyzing component. The technical scheme has the characteristics of full automation, portability, flexible configuration and the like and the method and the device are suitable forthe different scales of integrated circuits.

Description

technical field [0001] The invention relates to the field of computer hardware security detection methods, in particular to a computer hardware circuit security detection method and device. Background technique [0002] With the development of computer technology, more and more attention has been paid to information technology and security. As the cornerstone of information systems, integrated circuits have received more and more research on their potential safety hazards. Security testing for hardware circuits is divided into pre-silicon hardware security testing and post-silicon hardware security testing. Pre-silicon hardware security detection is mainly aimed at codes in the integrated circuit design process, including RTL level, netlist level, and layout level, etc., to find hidden malicious codes. Post-silicon hardware security testing is aimed at post-manufactured integrated circuits, including FPGAs and three-dimensional integrated circuits, to discover malicious cir...

Claims

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Application Information

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IPC IPC(8): G01R31/3181
CPCG01R31/3181
Inventor 吴欣欣黄俊英李易叶笑春范东睿
Owner 北京中科睿芯科技集团有限公司