RANDOM NUMBER GENERATOR AND MAPPING CALCULATION CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a small size random number generator capable of swiftly generating an unpredictable and irreproducible random number sequence.;SOLUTION: The random number generator includes: an analogue chaos generating circuit 11 that generates an analogue chaos signal; a variation data generation part 10 that generates a variation data by performing a digital conversion on the signal; a mapping calculation circuit 21 that performs a logistic mapping; data varying means that generates a variation on the mapping made by the mapping calculation circuit 21 based on the variation data; and random number value acquisition means that acquires a random number value based on the mapping result made by the mapping calculation circuit 21.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2016,JPO&INPIT