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Real random number generation method and its device

A generation method and random number technology, applied in the field of true random number generation method and device based on quantization process noise amplification, can solve frequency limitation and other problems, achieve fast random number output code rate, small requirements, and small area effects

Active Publication Date: 2015-11-25
SHENZHEN STATE MICRO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this principle, existing true random number generators usually use jittered clock sampling, but the code rate of random number output based on the jittered clock sampling method will be limited by the frequency of the sampling clock

Method used

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  • Real random number generation method and its device
  • Real random number generation method and its device
  • Real random number generation method and its device

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Embodiment Construction

[0026] Such as figure 1 As shown, a true random number generation method proposed by the present invention is a random number generation method based on noise amplification. As we all know, ordinary noise sources are very small in magnitude and must pass through an amplification process before they can be detected. Therefore true random number generating method of the present invention comprises the following steps:

[0027] Step 1. Amplify the noise signal Vn introduced from the noise generation module by k times after passing through the summation module, and then send it to the sample and hold module. In order to avoid the output of the amplification module or the sample and hold module exceeding The maximum range of the analog-to-digital converter, wherein the value of the amplification factor k is less than 2 N , and greater than 1, the value of N is at least 2, the larger the value of k, the shorter the delay time of random number output;

[0028] Step 2. Output the a...

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Abstract

The invention discloses a method and a device for generating true random numbers. The method comprises the following steps of summing and amplifying a process of amplifying quantization errors in the process of analog-to-digital conversion and digital-to-analog conversion and thermal noise introduced into a circuit, and generating the random numbers. According to the method and the device, the symmetrical distribution of noise is converted into random characters of output random sequences '0' and '1', so that the high-quality true random numbers are generated.

Description

technical field [0001] The present invention relates to the security field, the communication field or other fields that require the use of random numbers, in particular to a method and device for generating true random numbers based on quantization process noise amplification. Background technique [0002] In security applications such as digital communications, electronic transactions, and digital signatures, a high-quality random number source is required to generate keys, and then use symmetric or asymmetric algorithms to complete authentication or identification. Or in occasions such as dynamic element matching (DEM), a random number generator is also required. [0003] A well-designed random number is characterized by the unpredictability of the code stream, especially in the field of security, where an attacker cannot make any valuable predictions about the random number based on the design of the random number generator, which requires the noise of the random number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/58
Inventor 吴晓勇王新亚
Owner SHENZHEN STATE MICRO TECH CO LTD