High speed true random number generator

A true random number generator technology, applied in the field of high-speed true random number generators, can solve the problems of slow speed and poor random number quality, and achieve the effect of small power consumption and area

Inactive Publication Date: 2005-03-02
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Some of the domestically developed random number generators are pseudo-random number generators designed with digital circuits; while true random number generators designed with analog circuits are often slower, and the quality of random numbers generated is not good

Method used

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Embodiment Construction

[0015] The present invention will be described in detail below according to the accompanying drawings.

[0016] like figure 1 As shown, the high-speed true random number generator of the present invention is divided into an analog circuit part and a digital circuit part. The main function of the analog circuit is to generate a random number for each clock cycle, and has the function of anti-saturation; the main function of the digital circuit is to post-process the random number output by the analog part, so that the output random number has better statistical characteristics .

[0017] The analog circuit of the high-speed true random number generator of the present invention is as figure 2 As shown, it can be divided into three parts: the operation circuit, the sample-and-hold circuit and the anti-saturation circuit; among them, the operation circuit includes a comparator U1, an operational amplifier U2, a controller U4 that generates two reference voltage sources V2+, V2-...

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Abstract

The invention discloses a kind of high speed true random number generator; The including imitates the telephone and digital circuits, the simulation telephone is from the operation telephone, sample the hold circuit and defend the saturated telephone constitutive enzyme; The digit anti is separately the reversible shuffle telephone of right and wrong. Should be top speed and really take place the machine and can generate the speed as true random numbers of the high mass of the 20 Mbpses random.The random numbers availability generate in the cipher key of the born cipher code, cipher algorithm, the aetio of the customer of bank starts the cipher code, cipher, the cipher code, cipher of the automatic consign machine etc, but its true random is important scure of the information safety.

Description

technical field [0001] The invention relates to a true random number generator. In particular, it relates to a high-speed true random number generator for generating keys of cryptographic algorithms, initial passwords of bank customers and passwords of automatic deposit machines. Background technique [0002] There are two types of random numbers: pseudo-random numbers and true random numbers. Pseudo-random numbers have certain rules to follow, and the period length is a finite random number, so pseudo-random numbers are predictable. True random numbers are generally generated by a true random number generator composed of analog circuits. Due to the introduction of noise in the circuit, true random numbers have no rules to follow and are completely unpredictable. [0003] Since most of the existing encryption algorithms are public, the guarantee of information security depends on the protection of the key, and the generation of the key generally requires the use of random ...

Claims

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Application Information

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IPC IPC(8): G06F7/58
Inventor 严晓浪沈海斌楼久怀胡国兴
Owner ZHEJIANG UNIV
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