A Novel Image Encryption Algorithm Based on DNA Subsequence Operation

Table 2

Comparison with other chaos-based encryption algorithms.

Considered items for 256×256 lena image	Proposed	Reference [16]	Reference [17]	Reference [18]	Reference [1]
Key space	2^279	2^233	N/A	2^260	2^99
Key sensitivity	Yes	Yes	N/A	Yes	Yes
information entropy	7.9975	N/A	7.99732	7.9968	N/A
Chaotic system used	DNA operation; and logistic system	Chen's chaotic; system	Chen's chaotic; system	Coupled chaotic; system	Logistic chaotic; system