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A random number acquisition device and cryptographic chip

A collection device and random number technology, applied to random number generators, etc., can solve problems such as application limitations, achieve the effects of wide application, reduce difficulty, and improve design convenience

Active Publication Date: 2017-12-12
SHENZHEN YILIAN INFORMATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a random number collection device and a cryptographic chip to solve the problem that existing random number collection devices have relatively limited applications in terms of IP reuse

Method used

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  • A random number acquisition device and cryptographic chip
  • A random number acquisition device and cryptographic chip
  • A random number acquisition device and cryptographic chip

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] figure 1 For a schematic structural diagram of a random number acquisition device provided in an embodiment of the present invention, refer to figure 1 , the random number acquisition device can include: a data generation digital unit 100, a clock generation digital unit 200, and a data acquisition digital unit 300; wherein, the data acquisition digital unit 300 is connected to the data generation digital unit 100 and the clock generation digital unit 2...

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Abstract

An embodiment of the present invention provides a random number acquisition device and a cryptographic chip, wherein the random number acquisition device includes: a data generation digital unit that generates and outputs a random data signal; a clock generation digital unit that generates and outputs a random clock signal; The generating digital unit is connected to the clock generating digital unit, and when receiving the random clock signal, collects the corresponding random data signal in a metastable state according to the random clock signal, and obtains a random number data acquisition digital unit . The invention can reduce the difficulty of IP reuse design in the random number acquisition device and improve design convenience.

Description

technical field [0001] The invention relates to the technical field of data acquisition, in particular to a random number acquisition device and a cryptographic chip Background technique [0002] The random number acquisition device refers to a device that can generate random numbers and collect random numbers, such as a random number generator, etc.; the random number output by the random number acquisition device can be used as a key in the cryptographic algorithm of the cryptographic chip Therefore, the random number acquisition device is a necessary module of the cryptographic chip, and the quality of the random number output by the random number acquisition device directly affects the security performance of the cryptographic chip. [0003] With the development of cryptographic chips, IP reuse has become an important feature of cryptographic chips; however, the existing random number acquisition devices that use analog circuits rely heavily on the production process of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/58
Inventor 毛兴中杨碧波王海洋
Owner SHENZHEN YILIAN INFORMATION SYST CO LTD