Special issue on security and performance of networks and clouds: Guest editor's introduction

This special issue focuses on the security and performance of computer networks and cloud computing. It was inspired by papers presented at a special symposium held on 22 September 2011 in honor of Professor Satish K. Tripathi on the occasion of his 60th birthday and on the eve of his formal investiture as President of the University at Buffalo, the State University of New York. The symposium brought together some 100 participants, including several of Professor Tripathi's current and former collaborators, colleagues and students.