Table 2 NIST statistical test results.

From: An optimized novel lightweight block cipher for image encryption

Test methods

P-value

Results

Frequency

0.085587

Pass

Block Frequency

0.867692

Pass

Cumulative Sums (forward)

0.289667

Pass

Cumulative Sums (inverse)

0.171867

Pass

Runs

0.883171

Pass

Longest run

0.514124

Pass

Rank

0.574903

Pass

FFT

0.534146

Pass

Non-Overlapping Template

0.883171

Pass

Overlapping Template

0.834308

Pass

Universal

0.964295

Pass

Approximate Entropy

0.883171

Pass

Random Excursions

0.574903

Pass

Random Excursions Variant

0.816537

Pass

Serial

0.366918

Pass

Linear complexity

0.719747

Pass