@INPROCEEDINGS{Li:PhysCon2007, author = {Shujun Li and Gonzalo Alvarez and Zhong Li and Wolfgang A. Halang}, title = {Analog Chaos-based Secure Communications and Cryptanalysis: A Brief Survey}, booktitle = {Online Proceedings of 3rd International IEEE Scientific Conference on Physics and Control (PhysCon 2007)}, year = {2007}, note = {Fulltext available online at \url{http://lib.physcon.ru/doc?id=d9d329ba28f0} and \url{http://www.hooklee.com/Papers/PhysCon2007.pdf}}, }