K. Subhashini
Department of ECE, Sri Sai Ram Engineering College, Chennai, Tamilnadu, India.
Amutha
Department of ECE, Sri Sivasubramaniya Nadar College of Engineering, Chennai, Tamilnadu, India.
Image Encryption Based on Modified Logistic Map and DNA coding
Authors
Abstract
The proposed image encryption algorithm uses a
modified logistic map and DNA coding. The DNA coding
method employs the four base pairs of the DNA code. One of
the eight DNA encoding rule is selected for encoding.
Permutation of image pixel values is then performed. The DNA
operation is chosen to achieve diffusion of the image pixel
values. The combination of the chaotic system and DNA coding
achieves the cipher image. The algorithm is able to withstand
statistical and differential attacks. It offers a large key space,
increases ciphertext security and improves encoding efficiency,
according to theoretical analysis and experimental results.