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Random number generating device and method thereof

A technology for a generating device and a generating method, which is applied in the field of random number generating devices, can solve problems such as encryption failure, and achieve the effects of simple structure, easy implementation, and simple and feasible method

Active Publication Date: 2015-01-21
北京中星天视科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a pseudo-random number is generated, it is meaningless. If it is used in encryption, it will cause encryption to fail

Method used

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  • Random number generating device and method thereof
  • Random number generating device and method thereof
  • Random number generating device and method thereof

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Experimental program
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Embodiment Construction

[0029] See figure 1 As shown, an embodiment of the present invention relates to a random number generator 100, which includes a first clock source 110, a second clock source 120, a timer 130, and a counter 140. The first clock source 110 is connected to the counter 140. The second clock source 120 is respectively connected to the counter 130 and the timer 140 (in other embodiments, the timer may also be connected to the first clock source or connected to another clock source, which is not limited).

[0030] When running, please refer to figure 2 Shown. The second clock source 120 inputs a square wave clock pulse signal to the counter 140 and the timer 130 to activate the two elements 210. The first clock source inputs a square wave clock pulse signal 220 to the counter. The counter samples the square wave clock signal input by the first clock source according to the square wave clock pulse signal input by the second clock source, and counts 230 according to the sampling result...

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Abstract

The invention discloses a random number generating device and a method thereof. The device comprises a first clock source, a second clock source, a counter and a timer; wherein the first clock source is connected with the counter and inputs a square wave clock pulse signal to the counter; and the second clock source is connected with the timer and the counter and inputs the square wave clock pulse signal to the counter and the timer. The timer carries out sampling and counting on the square wave clock pulse signal input by the first clock source according to the square wave clock pulse signal input by the second clock source. The timer can inform the counter of stopping counting after the set time is reached. The random number generating device has simple structure and convenient implementation. The method is simple and feasible and has strong operability. The invention can generate random number in the true sense.

Description

Technical field [0001] The invention relates to a random number generating device and method, in particular to a device and method for generating random numbers using different clock sources. Background technique [0002] With the development and wide application of electronic systems, random numbers used in electronic systems have also become more and more widely used. In these applications, especially in encryption algorithms to ensure security, the generation of random numbers is crucial. There are many methods for generating random numbers. For example, they can be generated by software programming. Specifically, the program can be written in programming languages ​​such as java and VB, and then the program can be run to generate random numbers. This type of method is relatively simple. [0003] Using software programming to generate random numbers is simple, but one problem is that if the program is executed repeatedly, the same random numbers can be obtained. If so, the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/58
Inventor 党朝张文斌
Owner 北京中星天视科技有限公司