He holds a Ph.D. in Computer Science and Engineering, Michigan State University, USA. He has 15 years of experience in performing top quality Network Security research in world class universities like Michigan State University (USA), International Institute of Information Technology, Hyderabad (India) and Nanjing University (China). He has 30+ top-quality publications in world-renowned journals like IEEE Transactions and Elsevier, and in top-class conferences like ICNP, INFOCOM, NDSS, ESORICS, VLDB and ICDCS. He performed research in cutting-edge areas like secure group communication, broadcast authentication, rewall optimization, cloud computing and sensor networks. He developed state-of-the-art algorithms for privacy preserving search for rich querying in cloud computing. These solutions represent a significant development in this domain.