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Random current type anti-detection device and anti-detection method

An anti-detection, current-type technology, applied in the field of information security, to achieve the effect of protecting information, avoiding leakage, and improving security

Inactive Publication Date: 2016-05-25
福建睿矽微电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of detection method has the possibility of being broken. When the time setting value and current output value are obtained, this detection method will be broken.

Method used

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  • Random current type anti-detection device and anti-detection method
  • Random current type anti-detection device and anti-detection method
  • Random current type anti-detection device and anti-detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 , is a schematic diagram of a random current type anti-detection device using an output current source in the present invention, the current source, the voltage detection module, the random number generator, the current source control module, the time setting module, the detection and judgment module and the resistor. The random number generator and the time setting module are respectively connected to the current source control module and the detection and judgment module, the current source control module is connected to the current source, the detection and judgment module is connected to the voltage detection module, and the current source and the voltage detection module are connected to the resistor through the connecting wire and then to the power ground.

[0024] The functions of each component are as follows: current source, used to output or input current of different sizes; voltage detection module, used to detect its voltage when the trigger sig...

Embodiment 2

[0028] Such as figure 2 , is a schematic diagram of a random current type anti-detection device using an input type current source in the present invention, replacing the output type current source in Embodiment 1 with an input type current source can also achieve the above-mentioned anti-detection purpose of the invention, and its work The principle is also similar to that in Embodiment 1, and will not be repeated here.

Embodiment 3

[0030] Such as image 3 , is a schematic diagram of a mutually exclusive combined random current type anti-detection device using an input current source and an output type current source according to the present invention, including a set of random current type anti-detection devices using an output type current source and an input type current source The random current type anti-detection device of the current source forms a mutually exclusive combination between the two, and can set the inflow or outflow current when using the input type current source or the output type current source at the same time, and when using the input type current source or the output type current source Type current source detects the detection voltage at the same time; in addition, if there is a short circuit between the connecting lines, it will also cause an out-of-range difference between the detection voltage and the set voltage, and will also trigger a system alarm signal. In addition to the...

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PUM

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Abstract

The invention relates to a random current type anti-detection device. The random current type anti-detection device is characterized by comprising a current source, a voltage detection module, a random number generator, a current source control module, a time setting module, a detection judgment module and a resistor, wherein the random number generator and the time setting module are respectively connected with the current source control module and the detection judgment module; the current source control module is connected with the current source; the detection judgment module is connected with the voltage detection module; and the current source and the voltage detection module are connected with the resistor through a connection line and then connected to a power supply or a power ground. By adoption of a high-safety random current type anti-detection device and a high-safety random current type anti-detection method, which are used on the basis of an information safety chip or an information safety terminal, different current outputs can be randomly generated, the invention is applicable to metal grids or touch switches, attacks in physical modes such as disassembly, drilling and laser can be prevented, and the internal information of a chip or the internal information of a terminal product can be effectively protected.

Description

technical field [0001] The invention relates to the field of information security, in particular to an anti-detection device and an anti-detection method based on an information security chip and an information security terminal. Background technique [0002] At present, the current anti-detection method based on the information security chip and the information security terminal mainly adopts the time setting method, and the current output is fixed. This kind of detection method has the possibility of being broken, and when the time setting value and current output value are obtained, this detection method is broken. Contents of the invention [0003] The purpose of the present invention is to overcome the above defects and provide a highly secure random current type anti-detection device and anti-detection method based on information security chips or information security terminals, which can generate different current outputs randomly and be applied to metal grids or T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/70
Inventor 汪孝晃叶明统宋慰云林峰陈挺立
Owner 福建睿矽微电子科技有限公司