Key space

Block cipher

Algorithm

Image (mathematics)

Plaintext-aware encryption

Physics

Encryption

Artificial intelligence

Cryptography

Multiple encryption

Logistic map

Permutation (music)

Acoustics

Key (lock)

Chaotic

Computer network

Computer vision

Mathematics

Computer security

Computer science

S-box

Probabilistic encryption

Deterministic encryption

Cryptosystem

Theoretical computer science

Plaintext

IEEE Access

This paper presents an efficient and secure chaotic S-Box based image encryption algorithm. Firstly, by cryptanalyzing a multiple chaotic S-Boxes based image encryption algorithm, we successfully cracked the cryptosystem by using chosen-plaintext attack (CPA). Secondly, we put forward a new image encryption scheme based on a novel compound chaotic map and single S-Box. In the new scheme, a novel discrete compound chaotic system, Logistic-Sine system (LSS), is proposed, which has wider chaotic range and better chaotic properties. And a new S-Box is constructed by using LSS, which has satisfactory cryptographic performance. Based on the new S-Box and the chaotic key stream, the new image encryption algorithm is designed, which consist of a round of permutation and two rounds of substitution process. The permutation and substitution key sequences are related to the plaintext image content, this strategy enables the cryptosystem to resist CPA. The simulation results and security analysis verified the effectiveness of the proposed image encryption scheme. Especially, the new scheme has obvious efficiency advantages, showing that it has better application potential in real-time image encryption.

An Efficient Image Encryption Scheme Based on the LSS Chaotic Map and Single S-Box