SEPTEMBER VOLUME 1 – ISSUE 4 (SEPTEMBER 2015) Privacy-Preserving Enhanced Collaborative Tagging Thammalla Alekhya & S.S.Madhavi A Broad Behavioral Characterization of Proximity Malware Detection Approach Which Based on Bayesian Model in DTNS Yadlapalli Suharika & Vedururu Sireesha Regulate Capacity Sharing in a Federation of Hybrid Cloud Providers Binay Kumar & H.Saidulu Managing and Performing Secure Transactions on Cloud Data N.Vijaya Lakshmi & P.Sree Lakshmi Study on Distributed, Concurrent and Independent Access to Encrypted Cloud Databases K.Bharati Reddy & P.Vaishali Density Based Traffic Signal System R.Tina & G.Sharmila Sujatha TDH: Accuracy Constrained, Privacy Preserving, Access Control Mechanism for Relational Data Mahesh Kunam & Dr.Lakshmi Srinivasa Reddy A System to Filter Unwanted Messages from OSN User Walls K.Subash Chandra Reddy & Abburi Ramesh Click-Based Graphical Password Schemes to Prevent Access against Spyware Velugoti.Nadiya & Syed Baji Consistency as a Service: Auditing Cloud Consistency Challa Haritha & Nagala Venkatadri