Design and Analysis of a Novel Chaos-Based Image Encryption Algorithm via Switch Control Mechanism

Table 1

NIST SP800-22 test results of two generators.

Test name	S1		S2
	value	Results	value	Results
Frequency	0.115026	SUCCESS	0.852445	SUCCESS
Block frequency	0.479345	SUCCESS	0.335341	SUCCESS
Cumulative sums	0.133011	SUCCESS	0.739284	SUCCESS
Runs	0.628042	SUCCESS	0.648365	SUCCESS
Longest runs of ones	0.746332	SUCCESS	0.269936	SUCCESS
Rank	0.955981	SUCCESS	0.057146	SUCCESS
FFT	0.713570	SUCCESS	0.818546	SUCCESS
Overlapping template matching	0.360195	SUCCESS	0.434233	SUCCESS
Universal statistical	0.689639	SUCCESS	0.693656	SUCCESS
Random excursions	0.364557	SUCCESS	0.504450	SUCCESS
Random excursions variant	0.490487	SUCCESS	0.490322	SUCCESS
Serial	0.880692	SUCCESS	0.157533	SUCCESS
Nonperiodic template	0.541996	SUCCESS	0.474985	SUCCESS
Linear complexity	0.519593	SUCCESS	0.736412	SUCCESS
Apen	0.909288	SUCCESS	0.401933	SUCCESS