Message from the Guest Editors

In this special issue of International Journal of Information Security, you will find three papers selected from 25 papers accepted by the 14th Information Security Conference (ISC 2011), which was held on October 26–29, 2011, in Xi’an, China. The conference was sponsored by China Computer Federation (CCF) and co-organized byXidianUniversity and Shanghai Jiao Tong University. In response to the call for papers, 95 papers were submitted to the conference. These papers were evaluated on the basis of their significance, novelty, technical quality, and practical impact. Each paper was reviewed by at least three members of the program committee, and the reviewing process was “double-blind.” Finally, 25 papers were selected for presentation at the conference. Three papers included in this special issue are distinct from the conference version in that they include substantial additional content. Moreover, they had to undergo another round of review to ensure the journal quality. We would like to thank all people contributed in evaluating and elaborating these three journal articles, Xiaofeng Chen, Masahiro Mambo, ChrisMitchell, PengNing, HainingWang, andYanjiang Yang.