Name
Abstract | ||
|---|---|---|
This paper suggests a new fast colour image cipher to meet the increasing demand for secure online image communication applications. Unlike most other existing approaches using a permutation-substitution network, the proposed algorithm consists of only a single substitution part. The keystream sequence is generated from a 4-D hyperchaotic system, whose initial conditions are determined by both the secret key and the SHA-224 cryptographic hash value of the plain-image. Favoured by the avalanche effect of hash functions, totally different keystream sequences will be generated for different images. Consequently, desired diffusion effect can be achieved after only a single round of substitution operation, whereas at least two encryption rounds are required by the state-of-the-art permutation-substitution type image ciphers. We also demonstrate the computational efficiency of the proposed algorithm by comparing it with the AES encryption algorithm. A thorough security analysis is carried out in detail, demonstrating the satisfactory security of the proposed algorithm. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.15388/Informatica.2018.186 | INFORMATICA |
Keywords | Field | DocType |
colour image cipher, hyperchaotic system, hash function, XOR encryption | Computer science,Algorithm,Encryption,Artificial intelligence,Hash function,Colour image,Machine learning | Journal |
Volume | Issue | ISSN |
29 | 4 | 0868-4952 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chong Fu | 1 | 122 | 16.26 |
| Gao-Yuan Zhang | 2 | 0 | 0.34 |
| Mai Zhu | 3 | 4 | 1.14 |
| junxin chen | 4 | 21 | 4.90 |
| Weimin Lei | 5 | 29 | 16.35 |