Chaotic oscillator and application thereof as random bit generator

An oscillator and chaotic technology, which is applied in the fields of information technology and communication security, can solve problems such as high cost, insufficient chaotic degree of chaotic signals, complex circuits, etc., and achieve the effect of low cost, high practical value, and good balance performance

Inactive Publication Date: 2011-09-14
SOUTHWEST UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the currently proposed circuits are generally more complex and costly, and the degree of chaos generated by the chaotic signal is not enough, so it is easy to crack. Therefore, it is necessary to propose an easy-to-implement, low-cost, new type of Simulate a chaotic oscillator, and use this chaotic oscillator to realize the development of a random bit generator

Method used

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  • Chaotic oscillator and application thereof as random bit generator
  • Chaotic oscillator and application thereof as random bit generator
  • Chaotic oscillator and application thereof as random bit generator

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Embodiment Construction

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0024] Such as figure 1 As shown, the chaotic oscillator of the present invention includes a negative transconductance sinusoidal oscillator circuit and a differential amplifier circuit unit; after the output signal of the sinusoidal oscillator circuit is amplified by the differential amplifier circuit unit as output, continuous Chaotic oscillator signal.

[0025] In this embodiment, the negative transconductance sinusoidal oscillator circuit includes two NPN bipolar transistors I T1 and transistor II T2, the base of the transistor II T2 is connected with the collector of the transistor IT1, and the transistor II T2 The collector of the transistor I T1 is connected w...

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Abstract

The invention discloses a chaotic oscillator, which comprises a negative transconductance sinusoidal oscillator circuit and a differential amplification circuit unit, wherein an output signal of the sinusoidal oscillator circuit is amplified by the differential amplification circuit unit, and the amplified signal is taken as output to obtain a continuous chaotic oscillation signal. Meanwhile, the invention discloses the application of the chaotic oscillator as a random bit generator. A sinusoidal oscillator provided by the invention is suitable to be realized on a single integrated circuit chip, and has a compact structure, low manufacturing cost, very high output frequency, high balance performance and high source suppression and noise immunity functions. The random bit generator designed according to the sinusoidal oscillator inherits the advantages. As a design scheme of a real random bit generator, the invention has a very high practical value.

Description

technical field [0001] The invention relates to the fields of information technology and communication security, in particular to a chaotic oscillator and the application of the chaotic oscillator as a random bit generator. Background technique [0002] With the remarkable development of advanced information and communication security, the protection of information has become very important. Random bit generators are widely used in computer simulation, numerical analysis, algorithm evaluation, statistical sampling, image identification, encryption, digital watermarking and many other fields. [0003] At present, there are mainly two methods for generating random numbers: arithmetic method and physical method. Arithmetic random numbers are obtained through repeated calculations, which may have periodicity, which hinders their application in cryptographic systems. On the other hand, physical random numbers are generated through random physical phenomena, and since there is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B5/18
Inventor 王丽丹段书凯
Owner SOUTHWEST UNIV
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