Portable true random code generating device and method

A technology of true random code and generating device, applied in random number generator, TV, color TV components and other directions, can solve the problems of not suitable for personal use, not high enough randomness, low generation rate, etc., to reduce autocorrelation The effect of high randomness, high randomness and high production rate

Active Publication Date: 2015-01-07
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Today's true random code generators have such defects: high cost, low generation rate, not high enough randomness, not suitable for personal use, etc.

Method used

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  • Portable true random code generating device and method
  • Portable true random code generating device and method
  • Portable true random code generating device and method

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Embodiment Construction

[0042] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings:

[0043] Such as figure 1 Shown is a schematic diagram of the device of the present invention, figure 2 It is a schematic diagram of the module of the present invention. A portable true random code generation device, comprising a light emitting module 1, an image sensor 2, a scattering material, a reflective sheet 3, a control module 4, a USB bridge module 6, a USB interface 7, a power conversion module 5 and a PCB board; the light emitting module 1, The image sensor 2, the control module 4, the USB bridge module 6, the USB interface 7, and the power conversion module 5 are all fixed on the PCB. The light emitting module 1 is arranged around the image sensor 2, and the scattering material covers the image sensor 2 and the light emitting module. 1. The reflective sheet 3 is set on the scattering material; among them,

[0044] The light-emit...

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Abstract

The invention discloses a portable true random code generating device which comprises a light-emitting module, an image sensor, scattering materials, a reflection piece, a control module, a USB bridging module, a USB interface, a power conversion module and a PCB. The light-emitting module, the image sensor, the FPGA control module, the USB bridging module, the USB interface and the power conversion module are all fixed on the PCB. The light-emitting module is arranged on the periphery of the image sensor, the scattering materials cover the image sensor and the light-emitting module, and the reflection piece is arranged on the scattering materials. The invention further discloses a portable true random code generating method. The portable true random code generating device is simple in structure, easy to implement, high in randomness and generation rate and low in cost, it is estimated that a real object only has the size of a USB flash disk, carrying is convenient, a USB is used for transmitting true random codes, plug and play is achieved, and using is very convenient. The process of generating the random codes does not relay on any external aids, and high safety is achieved.

Description

Technical field [0001] The invention relates to the technical field of information security and personal information security protection, in particular to a portable true random code generating device and method. Background technique [0002] Random codes are a valuable resource for many applications, and are widely used in computer simulation, gambling, numerical analysis, sampling, decision-making, and communication security. There are two main methods for generating random codes. One is a pseudo-random code generator based on mathematical methods, which relies on complex algorithms to generate pseudo-random codes with a long period through seeds. In fact, pseudo-random code generators relying on complex determination algorithms have been widely used because of their high efficiency and high generation rate. Although the algorithm is complex, the random code generated by the pseudo-random code generator will eventually repeat itself. Therefore, if the seed or the current state...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/351H04N5/357G06F7/58
Inventor 张益昕张旭苹乔苇岩唐志强戚力
Owner NANJING UNIV
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