Welcome to Marrakesh, Morocco and to the 11th International Conference on Information Assurance and Security (IAS 2015), held during December 14-16, 2015. IAS 2015 is jointly organized by the Machine Intelligence Research Labs (MIR Labs), USA; Hassan 1st University, Settat, Morocco and University of Sfax, Tunisia. ISDA'15 is Technically Sponsored by the IEEE Morocco Section, IEEE Tunisia Section and Technically Supported by the IEEE Systems, Man and Cybernetics Society Technical Committee on Soft Computing.

The 11th International Conference on Information Assurance and Security (IAS 2015) aims to bring together researches, practitioners, developers, and policy makers involved in multiple disciplines of information security and assurance to exchange ideas and to learn the latest development in this important field. IAS-2015 focus on the following main topics:

- Information Assurance, Security Mechanisms, Methodologies and Models
- Secure System Architectures and Security Application
- Image Engineering, Multimedia Signal Processing and Communication Security

IAS 2015 received papers from over 12 countries and each paper was peer reviewed by at least five or more program committee members and based on the recommendations of the reviewers only 26 papers were included in the final Program. We would like to thank the IAS'15 international program committee and the additional reviewers for providing the reviews in time. Our special thanks also go to all the plenary speakers for providing the very interesting and informed talks to catalyze subsequent discussions.

Many people have collaborated and worked hard to produce a successful IAS 2015 conference. First and foremost, we would like to thank all the authors for submitting their papers to the conference, for their presentations and discussions during the conference. Our thanks to Program Committee members and reviewers, who carried out the most difficult work by carefully evaluating the submitted papers. We express our sincere thanks to the plenary speakers, special session chairs, organizing committee chairs for helping us to formulate a rich technical program. Welcome to Marrakesh, Morocco and hope that you will enjoy the conference program.

General Chairs
Ajith Abraham, Machine Intelligence Research Labs (MIR Labs), USA
Adel M. Alimi, University of Sfax, Tunisia
Abdelkrim Haqiq, Hassan 1st University, Settat, Morocco

Program Committee Chairs
Dijiang Huang, Arizona State University, USA
Dong Seong Kim, Canterbury University, New Zealand
Hannan Xiao, University of Hertfordshire, UK
Nizar Rokbani, University of Sousse, Tunisia

Organizing Chairs
Jaouad Dabounou, FST, Hassan 1st University, Settat, Morocco
Ali Wali, University of Sfax, Tunisia