Table 12 Key space analysis.

From: 2D-Cosine power sine coupled map with fractal-Fibonacci fusion for hyperchaotic image encryption

Algorithm

Proposed

47

36

49

52

Key space

\(2^{348}\)

\(2^{319}\)

\(2^{215}\)

\(2^{319}\)

\(2^{967}\)

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