random binary number column generating method using bidirectional mutual clock control way

摘要

A method for generating a random binary sequence using a bidirectional mutual clock modulation scheme includes: a data acquisition step of randomly adjusting a clock with two LFSRs (100, 200) interacting with each other; The obtained data is converted into a binary number sequence in the logic circuit unit 300, An output result obtaining step of obtaining an output resu In this case, In the present invention, an initial value stored in the memory of two LFSRs is changed to a non-zero value, and then a mutual clock adjusting function is constructed using a cache memory storing one bit of each LFSR. The tap length affects the number of variable clocks, the linear complexity increases due to the change in the number of strokes of the variable clock, and the period becomes longer. When the encrypted long message is used for transmission, the attack using the Berlekamp- And the like.