Journal
ENTROPY
Volume 17, Issue 10, Pages 6954-6968Publisher
MDPI
DOI: 10.3390/e17106954
Keywords
chaos; DNA encoding; spatiotemporal chaos; image encryption
Categories
Funding
- National Natural Science Foundation of China [61371175]
- Fundamental Research Funds for the Central Universities [HEUCFQ20150812]
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DNA computing based image encryption is a new, promising field. In this paper, we propose a novel image encryption scheme based on DNA encoding and spatiotemporal chaos. In particular, after the plain image is primarily diffused with the bitwise Exclusive-OR operation, the DNA mapping rule is introduced to encode the diffused image. In order to enhance the encryption, the spatiotemporal chaotic system is used to confuse the rows and columns of the DNA encoded image. The experiments demonstrate that the proposed encryption algorithm is of high key sensitivity and large key space, and it can resist brute-force attack, entropy attack, differential attack, chosen-plaintext attack, known-plaintext attack and statistical attack.
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