Research on Pseudorandom Number Generator Based on Several New Types of Piecewise Chaotic Maps

Table 1

The test results of NIST SP800-22.

No.	Test index	PRNG based on system (17)
		Proportion	value	Result
1	Frequency	0.9930	0.544254	Success
2	Block frequency	0.9920	0.869278	Success
3	Cumulative sums^1	0.9920	0.361938	Success
4	Runs	0.9910	0.966626	Success
5	Longest run	0.9920	0.757790	Success
6	Rank	0.9920	0.916599	Success
7	FFT	0.988	0.973718	Success
8	Nonoverlapping template^1	0.9810	0.678686	Success
9	Overlapping template	0.9900	0.516113	Success
10	Universal	0.9900	0.721777	Success
11	Approximate entropy	0.9860	0.295391	Success
12	Random excursions^1	0.9983	0.186164	Success
13	Random excursion variant^1	0.9811	0.202783	Success
14	Serial^1	0.9920	0.984881	Success
15	Linear complexity	0.9910	0.735908	Success

¹The test item contains several submodules, of which the worst results are listed here.