| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000436054 |
| ISSN: | 0001-3765 |
| Authors: | Janardhanan, Subashini V1 Sanjeeva, Poornachandra2 |
| Institutions: | 1Jerusalem College of Engineering, Department of Computer Science and Engineering, Chennai, Tamil Nadu. India 2Excel Engineering College, Department of Electronics and Communication Engineering, Namakkal, Tamil Nadu. India |
| Year: | 2020 |
| Volumen: | 92 |
| Number: | 2 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English abstract | Chaos-based image encryption schemes shuffle the position of the pixels (confuse), change their values (diffuse), to camouflage the identity of the original image. In this paper, a symmetric image cryptosystem based on permutation is proposed. Permutation, used both to change the position of the pixel and modify its value, is undertaken using the Bogdanov map. First, the input image is permuted using the Bogdanov map so that the pixel positions are changed. Thereafter, the resultant scrambled image is sliced into bit-planes which are again separately subjected to the Bogdanov map. The encrypted image is constructed by encrypting the scrambled bit-planes with the key generated using dyadic transform. The experimental results exhibited random behavior in the distribution of the pixel values of the encrypted image. The cryptosystem is simple and fast, as it is permutation-based and, secure, it may be used in real-time transmission |
| Disciplines: | Ciencias de la computación |
| Keyword: | Procesamiento de datos, Mapa de Bogdanov, Procesamiento de imágenes, Caos, Transformada diádica, Esquemas de encriptamiento, Permutación |
| Keyword: | Data processing, Image processing, Bogdanov map, Chaos, Dyadic transform, Encryption schemes, Permutation |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
