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True random number generator and electronic equipment

A true random number and generator technology, applied in the field of information security, which can solve the problems of metastable generation and difficulty in use.

Active Publication Date: 2020-12-01
HYGON INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The random number generated by the random number generator based on the metastable state has high randomness, but in practice, the noise of the power supply, the drift of the temperature and the deviation of the CMOS process have a great influence on the delay circuit, and the generation of the metastable state and not easy to use

Method used

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  • True random number generator and electronic equipment
  • True random number generator and electronic equipment
  • True random number generator and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In order to realize the generation of random numbers based on metastable states, an embodiment of the present application provides a true random number generator.

[0035] see figure 1 As shown, the true random number generator provided by the embodiment of the present application includes two parts: a signal acquisition device and an oscillator.

[0036] It should be noted that the signal acquisition device used in the embodiment of the present application includes a data acquisition port (D port), a clock port (CLK port) and an output port (Q port). Among them, when the signal acquisition device is in the normal working state (that is, in the non-metastable state), the output port will output the corresponding output value according to the input level value of the input port, and the clock port is used to trigger the "output port According to the input level value of the input port, output the corresponding output value". That is, when a valid signal is input to the...

Embodiment 2

[0079] In this embodiment, on the basis of the first embodiment, a specific true random number generator structure is used to further illustrate the solution of the present application.

[0080] see Figure 8 The true random number generator shown,

[0081] 101 and 102 are delay links.

[0082] 103 is a delay link (fast dly) with a higher frequency (smaller delay period) than 104 .

[0083] 104 is a delay link (slow dly) with a slower frequency (larger delay period) than 103 .

[0084] 105 is two-way selector (MUX2), when the S=1 that D flip-flop 109 outputs, MUX2 sends the data of 1 port to output, when the S=0 that D flip-flop 109 outputs, MUX2 sends the data of 0 port sent to the output.

[0085] 106 is a D flip-flop (DFF). Its CLK port (clock port) and D port (data acquisition port) will receive a rising edge signal at the same time.

[0086] 107 is an output port of DFF106, which is a port for generating random numbers when DFF106 is in a metastable state.

[0087]...

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Abstract

The invention provides a true random number generator and electronic equipment, and the generator comprises a signal collection device which comprises a data collection port, a clock port, and an output port, and is in a metastable state when the rising edge of a signal at the data collection port and the rising edge of a signal at the clock port are aligned at a preset position; an oscillator which is respectively connected with the data acquisition port, the clock port and the output port, and the oscillator is used for generating an oscillation signal, respectively inputting the oscillationsignal to the data acquisition port and the clock port, and adjusting the period of the generated oscillation signal according to the signal output by the output port, wherein the circuit delay fromthe oscillator to the data acquisition port and the clock port is different. According to the true random number generator, the signal acquisition device can be dynamically stabilized in a metastablestate, a reliable random number is provided, and generation of the random number based on the metastable state is achieved.

Description

technical field [0001] The present application relates to the technical field of information security, and in particular, to a true random number generator and electronic equipment. Background technique [0002] With the increasing demand for information security, information encryption and cracking technology has been greatly developed. In order to ensure the confidentiality, integrity, availability, controllability and non-repudiation of information, information encryption technology is widely used at present. And almost all information encryption technologies need to use a key, so how to obtain a safe, reliable and difficult-to-crack key has become a key point of information encryption technology. As we all know, any password that can be cracked will have a certain law to be found. As long as this law is found, it can be cracked in reverse, and a true random number is a random number generated by purely physical phenomena. The advantages of uniqueness and difficulty of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58H04L9/08
CPCG06F7/588H04L9/0869
Inventor 黄瑞锋杨昌楷王建龙
Owner HYGON INFORMATION TECH CO LTD
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