An equivalent restart frequency modulation true random number generator and true random number generation method

Abstract

An equivalent restart frequency modulation true random number generator and a true random number generation method, the generator includes a frequency modulation high frequency oscillator, a noise amplifier and a zero crossing counter, the output end of the noise amplifier is connected to the input end of the frequency modulation high frequency oscillator, The output end of the FM high-frequency oscillator is connected with the input end of the zero-crossing point counter, and the output end of the zero-crossing point counter is used as the output end of the true random number generator. The method includes the following steps: 1) the noise amplifier inputs the amplified noise to the frequency modulation high frequency oscillator; 2) the frequency modulation high frequency oscillator receives the amplified noise, and uses it as a modulation signal to perform frequency modulation on the high frequency oscillation wave; 3) ) The zero-crossing counter receives the frequency-modulated high-frequency oscillation signal, counts the number of zero-crossing points of the high-frequency oscillation signal within a certain period of time, and finally outputs a true random number. The invention accumulates the influence of noise, so that the property of the output true random number is more stable.

Description

technical field [0001] The invention belongs to the field of electronic circuits, and relates to an equivalent restart frequency modulation true random number generator and a true random number generation method. Background technique [0002] There are many ways to generate true random numbers in the prior art. For example, the published patent "A True Random Number Generator for Comparing Thermal Noise of Equal Resistances" (Yu Huihong, CN101751240B) uses a comparator to compare the thermal noise signals of the same resistance Perform comparison processing to obtain random number sequences; another patent "multi-source input true random number generator circuit architecture" (Zhou Xinjie, Yu Zongguang, Luo Jing, Wang Dong, Tian Haiyan, CN203909778U) discloses a method for different The type noise generating circuit selects it as a noise source, and then processes it with a sampling correction circuit and a random number counter to obtain a true random number. [0003] In t...

AI Technical Summary

Problems solved by technology

The random numbers generated by this structure are unpredictable, but because the jitter of the low-frequency oscillator is expressed by sampling the high-frequency clock, the randomness of the sampling output has a great relationship with the operating frequency of the high-frequency clock. When the frequency of the high-frequency clock is too low or too high, the jitter of the low-frequency clock cannot be extracted, so that the system does not meet the randomness requirements

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