@ARTICLE{Daneshgar, author = {Khadem, Behrooz and Daneshgar, Amir and Mohebbipoor, Fahimeh and }, title = {A Stream Cipher based on chaotic permutations}, volume = {17}, number = {40}, abstract ={In this paper we introduce a word based stream cipher consisting of a chaotic part operating as a chaotic permutation and a linear part, both of which designed on a finite field. We will show that this system can operate in both synchronized and self-synchronized modes. In particular, we show that in the self-synchronized mode the stream cipher has a receiver operating as an unknown input observer. In addition we evaluate the statistical uniformity of the output and we also show that the system in the self-synchronized mode is much faster and lighter for implementation compared to similar self-synchronized systems with equal key size. }, URL = {http://jsci.khu.ac.ir/article-1-2034-en.html}, eprint = {http://jsci.khu.ac.ir/article-1-2034-en.pdf}, journal = {Journal title}, doi = {}, year = {2015} }