A Chaotic Double Helix Random Number Generator with Disturbance

Abstract

The invention relates to a disturbed chaotic double-helix random number generator comprising a linear feedback shift register. The disturbed chaotic double-helix random number generator is characterized by further comprising a control signal generation circuit, a capacitor array, a double-helix oscillator and a sampling quantization circuit. The linear feedback shift register is connected with the control signal generation circuit, and used for outputting a pseudorandom sequence; the control signal generation circuit is connected with the capacitor array, and used for receiving the pseudorandom sequence, generating and outputting a control signal; the capacitor array is connected with the double-helix oscillator, and used for receiving the control signal and outputting an array capacitance value; the double-helix oscillator is connected with the sampling quantization circuit, and used for receiving the array capacitance value and then outputting a chaotic signal; and the sampling quantization circuit receives the chaotic signal, converts the chaotic signal into a digital signal and outputs the digital signal.. Since the initial value of the chaos-based double-helix oscillator is sensitive and unpredictable, the chaotic double-helix oscillator can continuously oscillate and generate output without outside intervention. For the outside disturbance, the representation of the chaotic oscillator is variation of track, and the variation of track is also hard to predict for the complexity.

Description

technical field [0001] The invention relates to the field of integrated circuit design, in particular to a chaotic double-helix random number generator with disturbance. Background technique [0002] In the field of information security of integrated circuits, true random number generators are often used as a necessary module. Chaotic circuits are a common way to implement true random number generators. [0003] Chaotic circuits are usually divided into discrete chaos and continuous chaos. Discrete chaos is usually an iteration of the sequence, and the output is a discrete time series on the time axis. Continuous chaos is usually described by differentials with more than three dimensions, and the output is a continuous waveform. The trajectory formed by the variables of continuous chaos in the coordinate system is usually in the form of one or more spirals. [0004] However, the existing random number generator has strong predictability, which reduces the security in the...

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Problems solved by technology

[0004] However, the existing random number generator is more predictable, and the security in the process of information transmission is reduced.

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