Cryptography with chaos at the physical level.
No Thumbnail Available
Date
2004
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
In this work, we devise a chaos-based secret key cryptography scheme for digital communication where the encryption is realized at the physical level, that is, the encrypting transformations are applied to the wave signal instead to the symbolic sequence. The encryption process consists of transformations applied to a two-dimensional signal composed of the message carrying signal and an encrypting signal that has to be a chaotic one. The secret key, in this case, is related to the number of times the transformations are applied. Furthermore, we show that due to its chaotic nature, the encrypting signal is able to hide the statistics of the original signal.
Description
Keywords
Citation
MACHADO, R. F.; BAPTISTA, M. da; GREBOGI, C. Cryptography with chaos at the physical level. Chaos, Solitons and Fractals, v. 21, p. 1265-1269, 2004. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0960077903007227>. Acesso em: 24 fev. 2015.