Random number generation circuit

A random number generation circuit, comprising:

• a random number generator, comprising a feedback circuit and a plurality of sequentially connected flip-flops, wherein an output terminal of a previous flip-flop being connected to an input terminal of a next flip-flop, the output terminal of each of the flip-flops serving as an output terminal of the random number generator, and an output terminal of the feedback circuit being connected to the input terminal of one of the flip-flops;
• the feedback circuit being configured to receive selection signals and select, based on the selection signals, the output terminals of two of the flip-flops as input terminals of the feedback circuit;
• and
• the random number generator being configured to output a plurality of first random numbers corresponding to corresponding selection signals in each counting cycle;
• a control signal generation circuit, configured to receive a trigger signal and output, based on the trigger signal, control signals corresponding to different first random numbers;
• and
• a multi-selection circuit configured to receive the plurality of first random numbers and the control signals corresponding to the different first random numbers, adjusting, based on the control signals, at least one bit position of the plurality of first random numbers to obtain second random numbers, and outputting a plurality of the second random numbers;
• wherein the control signal generation circuit comprises:
• an m-bit counter, m is a natural number;
• wherein the m-bit counter includes m flip-flops;
• the trigger signal serves as a clock input signal of a first flip-flop, an output terminal of a previous flip-flop serves as a clock input signal of a next flip-flop, and the output terminal of each flip-flop among the m flip-flops outputs one of the control signals.