This book constitutes the refereed proceedings of the 6th IFIP WG 11.11 International Conference, IFIPTM 2012, held in Surat, India, in May 2012. The 12 revised full papers presented together with 8 short papers and the abstracts of 4 keynote talks were carefully reviewed and selected from 51 submissions. Building on the traditions inherited from the iTrust and previous IFIPTM conferences, IFIPTM 2012 is a multi-disciplinary conference focusing on areas such as: trust models, social, economic and behavioural aspects of trust, trust in networks, mobile systems and cloud computation, privacy, reputation systems, and identity management.

Welcome to the proceedings of the Third International Conference on Contemporary Computing, which was held in Noida (outskirts of New Delhi), India. Computing is an exciting and evolving area. This conference, which was jointly organized by the Jaypee Institute of Information Technology, Noida, India and the University of Fl- ida, Gainesville, USA, focused on topics that are of contemporary interest to computer and computational scientists and engineers. The conference had an exciting technical program of 79 papers submitted by - searchers and practitioners from academia, industry, and government to advance the algorithmic, systems, applications, and educational aspects of contemporary comp- ing. These papers were selected from 350 submissions (with an overall acceptance rate of around 23%). The technical program was put together by a distinguished int- national Program Committee consisting of more than 150 members. The Program Committee was led by the following Track Chairs: Arunava Banerjee, Kanad Kishore Biswas, Summet Dua, Prabhat Mishra, Rajat Moona, Sheung-Hung Poon, and Cho-Li Wang. I would like to thank the Program Committee and the Track Chairs for their tremendous effort. I would like to thank the General Chairs, Prof. Sartaj Sahni and Prof. Sanjay Goel, for giving me the opportunity to lead the technical program. Sanjay Ranka

This book provides an easy-to-understand, step-by-step approach to learning the fundamentals of Assembly language programming for Intel's architectures, using a GNU/Linux-based computer as a tool. Offering students of computer science and engineering a hands-on learning experience, the book shows what actions the machine instructions perform, and then presents sample programs to demonstrate their application.The book is suitable for use during courses on Microprocessors, Assembly language programming, and Computer Organization in order to understand the execution model of processors. This knowledge also helps strengthen concepts when students go on to study operating systems and compiler construction.The concepts introduced are reinforced with numerous examples and review exercises. An Instructor's CD provides all the programs given in the book and the solutions to exercises. This book: discusses programming guidelines and techniques of using Assembly language programs; shows techniques to interface C and Assembly language programs; covers instructions from general purpose instruction sets of IA32 processors; includes MMX and MMX-2 instructions; covers SSE and SSE-2 instructions; explains input-output techniques and their use in GNU/Linux-based computers; explains GNU/Linux system calls along with methods to use them in programs; provides a list of suggested projects; and, gives ample references to explore further.