Image Encryption Algorithm Based on Hyperchaotic Maps and Nucleotide Sequences Database

Abstract

Image encryption technology is one of the main means to ensure the safety of image information. Using the characteristics of chaos, such as randomness, regularity, ergodicity, and initial value sensitiveness, combined with the unique space conformation of DNA molecules and their unique information storage and processing ability, an efficient method for image encryption based on the chaos theory and a DNA sequence database is proposed. In this paper, digital image encryption employs a process of transforming the image pixel gray value by using chaotic sequence scrambling image pixel location and establishing superchaotic mapping, which maps quaternary sequences and DNA sequences, and by combining with the logic of the transformation between DNA sequences. The bases are replaced under the displaced rules by using DNA coding in a certain number of iterations that are based on the enhanced quaternary hyperchaotic sequence; the sequence is generated by Chen chaos. The cipher feedback mode and chaos iteration are employed in the encryption process to enhance the confusion and diffusion properties of the algorithm. Theoretical analysis and experimental results show that the proposed scheme not only demonstrates excellent encryption but also effectively resists chosen-plaintext attack, statistical attack, and differential attack.

A Color-Image Encryption Scheme Using a 2D Chaotic System and DNA Coding

“…Along with this analysis, the proposed scheme was compared to two representative methods from other schemes [34,35,49,50]; Table 5 presents the correlation coefficient results for the encrypted Lena image. e proposed scheme obtained results superior to those of the reference methods, as the encrypted image correlation coefficient values were smaller than those obtained by the reference methods.…”

Cellular Neural Network-Based Medical Image Encryption

“…Meanwhile, researchers have found that exclusive features of DNA computing like enormous parallelism, immense information storage and revolutionary low power consumption have a great potential in enhancing the security of the cryptosystems. Several image cryptosystems have been proposed by different authors in recent past by synthesizing the metrics of DNA technology and hyperchaotic system [27,28]. Although, these systems enhances the security but the practical implementation becomes very difficult [29].…”

A Cloud Image Data Protection Algorithm with Multilevel Encryption Scheme and Automated- Selection Mechanism

“…Therefore, image encryption is an extremely important technology to ensure the security of sensitive information. Different image encryption schemes are outlined in this paper, such as optical transformation [1][2][3][4], cellular automata [5][6][7], DNA coding [8][9][10][11][12], data encryption standard (DES) [13][14][15], advanced encryption standard (AES) [16][17][18][19][20], and Blowfish [21]. However, the last three were mainly designed for textual information rather than digital image information.…”