A Robust and Fast Image Encryption Scheme Based on a Mixing Technique

Table 1

NIST SP800-22 test for results of the May-Gompertz system in SC and CDC modes.

Mode	SC		CDC
Test index	value	Decision	value	Decision
Approximate entropy	0.0907	Success	0.4705	Success
Block frequency	0.9972	Success	0.7320	Success
Cumulative sums	0.5263	Success	0.5462	Success
Fast Fourier transform	0.1554	Success	0.2743	Success
Frequency	0.0409	Success	0.9519	Success
Random excursions	0.9896	Success	0.0905	Success
Random excursions variable	0.7604	Success	0.6228	Success
Longest runs of ones	0.2417	Success	0.2735	Success
Rank	0.0528	Success	0.9754	Success
Runs	0.1551	Success	0.2780	Success
Serial	0.5869	Success	0.4908	Success
Universal statistical	0.9792	Success	0.8975	Success