News & EventsEvents and Seminars

Seminar: Privacy Challenges in Data intensive Processing Systems

NICTA NSW Research Laboratory Software Systems Research Group Seminars

Title: Privacy Challenges in Data intensive Processing Systems

Speaker: Johann-Christoph Freytag of Humboldt-Universität Berlin

Date: Tuesday 19 February 2013

Time: 1.30pm – 2.30pm

Venue: NICTA ATP Laboratory Level 4 Seminar Room 13 Garden St EVELEIGH

NO RSVP required


Over the last years, the means to collect personal data implicitly or explicitly over the Web and by various kinds of sensors and to combine data for profiling individuals dramatically increased thus leading privacy violations.

The first part of the talk categorizes the kind of privacy threads and privacy attacks. We show that privacy is at risk in different fields such as in the field of communication and in the field of database systems. We then introduce the concept of data privacy. The challenge of data privacy is to prevent the linkage of stored data to individuals. As many concepts are insufficient for privacy protection We present several improvements.

The presentation ends by briefly discussing how to build Software systems that take into account privacy concerns in software development. We developed our approach as part of the EU-funded project PRECIOSA whose goal was to provide a privacy aware information collection and dissemination environment for Intelligent Transportation Systems (ITS).


Johann-Christoph Freytag is currently full professor for Databases and Information Systems (DBIS) at the Computer Science Department of the Humboldt-Universität zu Berlin, Germany. Before joining the department in 1994, he was a research staff member at the IBM Almaden Research Center (1985-1987), a researcher at the European Computer-Industry-Research Centre (ECRC, in Munich, Germany, 1987-1989), and the head of Digital's Database Technology Center (also in Munich, 1990-1993). He holds a Ph.D. in Applied Mathematics/Computer Science from Harvard University, MA.

Prof Freytag has been a four time recipient of the IBM Faculty Award for collaborative work in the areas of databases, middleware, and bioinformatics/life science.

Details about this event  can be found here


Tutorial: Securing CPS ans IoT: Challenges and Opportunities

NICTA Network Research Group Tutorial

Title: Securing CPS ans IoT: Challenges and Opportunities

Speaker: Dr Sajal K. Das

Date: Tuesday, 20 November 2012

Time: 9am-12pm

Details about this event  can be found below:

Seminar: Named-Data Networking (NDN): a Candidate Future Internet Architecture

Date: 27th November, 2012

Time: 10.00 AM - 12.30 PM

Venue: K-17/113 Seminar Room, School of Computer Science and Engineering, UNSW

Cost: Free

(This tutorial is jointly sponsored by the Faculty of Engineering/School of Computer Science and Engineering, UNSW and NICTA)


With the growing realization that current Internet protocols are reaching the limits of their senescence, a number of on-going research efforts aim to design potential next-generation Internet architectures. Although they vary in maturity and scope, in order to avoid past pitfalls, these efforts seek to treat security and privacy as both fundamental and initial requirements.

The Named Data Networking (NDN) project aims to develop a new Internet architecture that replaces current host-based, point-to-point architecture in order to naturally accommodate new and emerging patterns of communication. NDN treats data as a first class object, explicitly naming it instead of its location. The current Internet secures the "pipe" that carries data between hosts. NDN secures data, a design choice that decouples trust in data from trust in hosts, enabling scalable communication mechanisms, such as automatic caching of data in routers to optimize bandwidth. The NDN project studies technical challenges that must be addressed to validate NDN as a future Internet architecture: routing scalability, fast forwarding,  trust models, network security, content protection and privacy, and fundamental communication theory.

This talk will overview NDN and then turn to security and privacy issues. By stressing content dissemination, NDN is an attractive and viable approach to many types of current and emerging communication models. It also incorporates some useful security and privacy features. We will first consider communication privacy and anonymity in NDN and describe an NDN add-on (called ANDANA) that offers the functionality similar to TOR on today's Internet. Since resilience to Denial of Service (DoS) attacks that plague today’s Internet is a major issue for any new architecture, we will discuss some initial research towards assessment and possible mitigation of DoS in NDN. After identifying and analyzing several new types of attacks, we investigate their variations, effects and counter-measures. Finally, we will discuss how to adapt NDN and its security features to environments other than content distribution, using the example of building automation.

Presenter Bio:
Gene Tsudik is a professor of Computer Science at the University of California, Irvine (UCI). He obtained his PhD in Computer Science from USC in 1991. Before coming to UCI in 2000, he was at IBM Zurich Research Laboratory (1991-1996) and SC/ISI (1996-2000). Over the years, his research interests included many topics in security, privacy and applied cryptography. He currently serves as Director of Secure Computing and Networking Center (SCONCE) and Director of the Networked Systems (NetSys) Graduate Program at UCI. Since 2009, he serves as the Editor-in-Chief of ACM Transactions on Information and Systems Security (TISSEC).

To download the tutorial slides, click here.

Seminar: Content Sharing Dynamics in the Global File Hosting Landscape

Title: Content Sharing Dynamics in the Global File Hosting Landscape

Speaker: Aniket Mahanti, University of Auckland, New Zealand

Date and time: Noon, Wed 21 Nov 2012

Venue: 113/K17 (CSE Seminar room)


We present a comprehensive longitudinal characterization study of the dynamics of content sharing in the global file hosting landscape. We leverage datasets collected from multiple vantage points that allow us to understand how usage of these services evolve over time and how traffic is directed into and out of these sites. We analyze the characteristics of hosted content in the public domain, and investigate the dissemination mechanisms of links. To the best of our knowledge, this is the largest detailed characterization study of the file hosting landscape from a global viewpoint.


Aniket Mahanti is a Lecturer in the Department of Computer Science at the University of Auckland, New Zealand. He received his B.Sc. in computer science from University of New Brunswick, Canada in 2004, and his M.Sc. in computer science from University of Calgary in 2006. After working for about 2 years as a research associate in the Department of Computer Science at University of Calgary, he joined the Ph.D. program at the university. He completed his Ph.D. in computer science from University of Calgary in June 2012. His doctoral dissertation was on measurement, modeling, and analysis of the file hosting ecosystem. His research interests are in the general area of networking with an emphasis on Internet traffic measurements and performance evaluation.

Panel Discussion: "Your Privacy in Social Networks" - 19th Nov

Welcome to cyberspace and your digital future where Facebook, Twitter and Gmail are collectively mapping the timelines of our lives. In this realm of status updates and conversations, our personal, private and confidential information isn’t always as private or as secure as we think. Do we really know what we’re revealing online? What about our children, or friends who use our networks? Are the privacy options presented to us adequate, or shadowy and misleading? Is expecting privacy in a social network akin to asking for privacy on a clothing-optional beach? Who should be held responsible for over-sharing user data?  And, what are future prognoses for our privacy in social media? Do average users understand privacy implications of their (often exhibitionist) behaviour on social networks? Do they care about privacy (until lack thereof affects them personally)?

An esteemed panel of cyber security experts from academia, industry and government will answer these questions, discuss future challenges and shed light on the very real security risks affecting so many of our lives.

Details about this event  can be found below:

For catering purposes, you are requested to RSVP using the following URL (also embedded above)

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