Data and Applications Security and Privacy XXXI

The proceedings contain 30 papers. The special focus in this conference is on Data and Applications Security and Privacy. The topics include: Resilient reference monitor for distributed access control via moving target defense; preventing unauthorized data flows; object-tagged RBAC model for the hadoop ecosystem; identification of access control policy sentences from natural language policy documents; fast distributed evaluation of stateful attribute-based access control policies; Gaussian mixture models for classification and hypothesis tests under differential privacy; differentially private k skyband query answering through adaptive spatial decomposition; mutually private location proximity detection with access control; privacy-preserving community-aware trending topic detection in online social media; privacy-preserving outlier detection for data streams; undoing of privacy policies on Facebook; towards actionable mission impact assessment in the context of cloud computing; reducing security risks of clouds through virtual machine placement; firewall policies provisioning through sdn in the cloud; budget-constrained result integrity verification of outsourced data mining computations; searchable encryption to reduce encryption degradation in adjustably encrypted databases; efficient protocols for private database queries; toward group based user-attribute policies in azure-like access control systems; high-speed high security public key encryption with keyword search; keylogger detection using a decoy keyboard; the fallout of key compromise in a proxy-mediated key agreement protocol; improving resilience of behaviometric based continuous authentication with multiple accelerometers; a content-aware trust index for online review spam detection and securing web applications with predicate access control