On the Efficient Processing of Multilevel Secure Continuous Queries

Data Stream Management Systems (DSMSs) address the data processing needs of situational monitoring applications, where data must be collected on-the-fly and processed in real-time. Sensitive data in situational monitoring applications must be processed such that there is no leakage of confidential information. Towards this end, we design a DSMS that allows continuous queries to be executed on multilevel secure (MLS) data in an efficient and secure manner. We provide a prototype to demonstrate the feasibility of our ideas and present some experimental results that discuss the overhead and performance gain of our approach.