Random number generation circuit

A technology for generating circuits and random number generators, which can be applied to random number generators, electrical pulse generator circuits, and logic circuits to generate pulses, etc. Sequence, the effect of improving randomness

Pending Publication Date: 2022-03-18
CHANGXIN MEMORY TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the randomness of the random numbers generated by the cu

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[0032] It is understood that the randomness of the prior art random number is still yet to be improved.

[0033] Analysis found that the current random number generating circuit although the output was processed, there is still a certain front-rear relationship between the front and rear numbers, it is difficult to achieve the true random. Specifically, the random number generating circuit is generated in linear shift register (LINEAR feedback shift registers, LFSR) to generate 7-bit random number as an example. For a fixed random number generating circuit, it is tapped (The Output The OF affect on theInput, TAP) The position is fixed, then this random number generating circuit can only produce a random sequence, and the order in which the front and rear numbers in a count cycle are fixed, where the bit position of the next state is called the tap position. .

[0034] If a variety of random sequences are needed, there is a need to set a variety of random number generation circuits...

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Abstract

The embodiment of the invention provides a random number generation circuit, which comprises a random number generator configured to output a plurality of first random numbers in each full period; the control signal generation module is configured to receive trigger signals and output control signals corresponding to different first random numbers based on the trigger signals; and the multi-selection module is configured to receive the first random number and the control signal corresponding to the first random number, adjust at least one bit position of the first random number based on the control signal, obtain a plurality of second random numbers and output a plurality of second random numbers. According to the embodiment of the invention, the randomness of the random number generated by the random number generation circuit is improved.

Description

technical field [0001] The embodiment of the present invention relates to the field of data encryption, in particular to a random number generating circuit. Background technique [0002] In today's information age, the security of information has become a key part of information products, and whether the encryption module has good security performance has become one of the focuses of attention. [0003] For the encryption module, in order to improve its security performance, it is necessary to provide a random number with good randomness as a seed, so as to form a pseudo-random number sequence. However, the randomness of the random numbers generated by the current random number generating circuit still needs to be improved. Contents of the invention [0004] The technical problem solved by the embodiments of the present invention is to provide a random number generating circuit to improve the randomness of the random number. [0005] In order to solve the above problems,...

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Application Information

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IPC IPC(8): G06F7/58H03K3/027
CPCG06F7/582H03K3/027H03K19/21G06F7/584G06F7/76
Inventor 范习安
Owner CHANGXIN MEMORY TECH INC
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