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Digital-circuit-based true random number generator

A true random number and generator technology, applied in the field of integrated circuits and information security, can solve the problems that analog circuit process parameters are sensitive to changes, affect circuit randomness, power supply noise and other problems, achieve strong anti-interference ability, simple implementation, Easy to integrate effects

Active Publication Date: 2013-06-12
成都三零嘉微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analog circuits are sensitive to changes in process parameters and cannot be reduced according to process changes, especially after entering 90nm.
In addition, the random number generator is generally integrated into the digital circuit system as a module, which is very susceptible to non-Gaussian system noise and power supply noise, which affects the randomness of the circuit.

Method used

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  • Digital-circuit-based true random number generator
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Embodiment Construction

[0031] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0032] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0033] The true random number generator proposed by the present invention includes an auxiliary oscillation sampling circuit group, a main oscillation sampling circuit group and a post-processing circuit, wherein the auxiliary oscillation sampling circuit group completes the first oscillation sampling, and the main oscillation sampling circuit group completes the second oscillation sampling .

[0034] figure 1 The basic structure of the true...

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Abstract

The invention discloses a digital-circuit-based true random number generator, relates to the technical fields of integrated circuits and the field of information safety, and aims to solve the problems of the conventional full-analogue or digital-analogue mixed circuit. Technical key points are that: the digital-circuit-based true random number generator comprises an auxiliary oscillation sampling circuit group, a main oscillation sampling circuit group and a post-processing circuit, wherein the auxiliary oscillation sampling circuit group comprises at least one basic oscillation sampling circuit; the main oscillation sampling circuit group comprises at least one basic oscillation sampling circuit; the output end of the basic oscillation sampling circuit in the auxiliary oscillation sampling circuit group is connected with the frequency control end of the basic oscillation sampling circuit in the main oscillation sampling circuit group; and the output end of the basic oscillation sampling circuit in the main oscillation sampling circuit group is connected with the input end of the post-processing circuit.

Description

technical field [0001] The present invention relates to the field of integrated circuit technology and the field of information security, in particular to a true random number generator based on the oscillation sampling method, the main structure of which is composed of digital units, which can be applied to encryption systems in various information security fields , used to generate a reliable sequence of truly random numbers. Background technique [0002] With the rapid development of communication, electronic information, computer Internet and other fields, information exchange is becoming more and more frequent and close, and information security issues are attracting more and more people's attention. As an important module in the security chip, the random number generator has important and extensive applications in the field of secure communication, and plays an important role in the generation of public key cryptographic parameters and symmetric algorithm keys. Theref...

Claims

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Application Information

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IPC IPC(8): G06F7/58
Inventor 冯睿胡杨川何卫国
Owner 成都三零嘉微电子有限公司
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