Publications

Conference papers

  1. Log: It's Big, It's Heavy, It's Filled with Personal Data! Measuring the Logging of Sensitive Information in the Android Ecosystem [PDF] [BibTeX]

  2. Allan Lyons, Julien Gamba, Austin Shawaga, Joel Reardon, Juan Tapiador, Serge Egelman, Narseo Vallina-Rodriguez
    In 32nd Usenix Security Symposium, August 9–11 2023, Anaheim, CA, USA.

  3. Mixed Signals: Analyzing Software Attribution Challenges in the Android Ecosystem [PDF] [BibTeX]

  4. Kaspar Hageman, Álvaro Feal, Julien Gamba, Aniketh Girish, Jakob Bleier, Martina Lindorfer, Juan Tapiador, Narseo Vallina-Rodriguez
    In IEEE Transactions on Software Engineering, 2023.

  5. Not Your Average App: A Large-scale Privacy Analysis of Android Browsers [PDF] [BibTeX]

  6. Amogh Pradeep, Álvaro Feal, Julien Gamba, Ashwin Rao, Martina Lindorfer, Narseo Vallina-Rodriguez, David Choffnes
    In Privacy Enhancing Technologies Symposium, July 10–15 2023, Lausanne, Switzerland.

  7. Trouble Over-The-Air: An Analysis of FOTA Apps in the Android Ecosystem [PDF] [BibTeX]

  8. Eduardo Blázquez, Sergio Pastrana, Álvaro Feal, Julien Gamba, Platon Kotzias, Narseo Vallina-Rodriguez, Juan Tapiador
    In IEEE Symposium on Security and Privacy, May 24–27 2021, online.

  9. Blocklist babel: On the Transparency and Dynamics of Open Source Blocklisting [PDF] [BibTeX]

  10. Álvaro Feal, Pelayo Vallina-Rodriguez, Julien Gamba, Sergio Pastrana, Antonio Nappa, Oliver Hohlfeld, Narseo Vallina-Rodriguez, Juan Tapiador
    In IEEE Transactions on Network and Service Management, 2021.

  11. Mis-shapes, Mistakes, Misfits: An Analysis of Domain Classification Services [PDF] [BibTeX]

  12. Pelayo Vallina-Rodriguez, Victor Le Pochat, Álvaro Feal, Marius Paraschiv, Julien Gamba, Tim Burke, Oliver Hohlfeld, Juan Tapiador and Narseo Vallina-Rodriguez
    In ACM Internet Measurements Conference, October 27–29 2020, online.

  13. An Analysis of Pre-installed Android Software [PDF] [BibTeX]
  14. Julien Gamba, Mohammed Rashed, Abbas Razaghpanah, Narseo Vallina-Rodriguez and Juan Tapiador.
    In IEEE Symposium on Security and Privacy, May 18–20 2020, online.
    [Best Practical Paper] [AEPD Emilio Aced Prize] [CNIL-INRIA Privacy Protection Award]

  15. Don't Accept Candy from Strangers: An Analysis of Third-Party Mobile SDKs [PDF] [BibTeX]

  16. Álvaro Feal, Julien Gamba, Narseo Vallina-Rodriguez, Primal Wijesekera, Joel Reardon, Serge Egelman, and Juan Tapiador.
    In Computers, Privacy & Data Protection, January 22–24 2020, Brussels, Belgium.
    Also published in Data Protection and Privacy, Volume 13: Data Protection and Artificial Intelligence, 2021, Bloomsbury Publishing.

  17. Tales from the Porn: A Comprehensive Privacy Analysis of the Web Porn Ecosystem [PDF] [BibTeX]

  18. Pelayo Vallina-Rodriguez, Álvaro Feal, Julien Gamba, Narseo Vallina-Rodriguez and Antonio Fernández.
    In ACM Internet Measurements Conference, October 21–23 2019, Amsterdam, The Netherlands.

  19. A Long Way to the Top: Significance, Structure, and Stability of Internet Top Lists [PDF] [BibTeX]

  20. Quirin Scheitle, Oliver Hohlfeld, Julien Gamba, Jonas Jelten, Torsten Zimmermann, Stephen Strowes and Narseo Vallina-Rodriguez.
    In ACM Internet Measurements Conference, October 31–November 2018, Boston, MA, USA.
    [ACM SIGCOMM Community Contribution Award]

  21. An Analysis of Pre-installed Android Software [PDF] [BibTeX]
  22. Julien Gamba, Mohammed Rashed, Abbas Razaghpanah, Narseo Vallina-Rodriguez and Juan Tapiador.
    In JNIC, June 13–15 2018, San Sebastián, Spain.

  23. This Is My Private Business! Privacy Risks on Adult Websites [PDF] [BibTeX]
  24. Pelayo Vallina-Rodriguez, Julien Gamba, Álvaro Feal, Narseo Vallina-Rodriguez and Antonio Fernández.
    In JNIC, June 13–15 2018, San Sebastián, Spain.

  25. BGP Table Fragmentation: what & who? [PDF] [BibTeX]
  26. Julien Gamba, Romain Fontugne, Cristel Pelsser, Randy Bush and Emile Aben.
    In CoRes, May 29–30 2017, Quiberon, France.
    Video presentation from RIPE 74.

Thesis

Conception rules for IGP and iBGP topologies to ensure BGP correctness

[PDF] [slides] [BibTeX]
Master's thesis, University of Strasbourg, France (2017).

The current Internet routing protocol, the border gateway protocol (BGP), offers a large flexibility of configuration for operators.However, because of this flexibility, anomalies can arise: BGP may fail to converge, some routers may be deprived of connectivity to the outside world, or routing loops can be created. Avoiding or fixing such anomalies can be complicated, especially for large topologies.

In this thesis, we will first review the existing models to capture the behaviour of BGP and introduce a decision problem, the stable path problem (SPP). The SPP model aim to track routing anomalies: by applying this model on a network topology, we can assure whether the given topology will be correct, or if it will be subject to anomalies. We will review the different kinds of anomalies discovered by the research community and classify them.

In the second part, we will give our definition of congruency in the context of BGP topologies, and show that any topology that respects this definition is correct.Then, we will present algorithms to correct a topology by making sure that it respects our definition of congruency.

We will conclude this thesis by giving a brief overview of the other existing approaches to the study of BGP correctness, and study the different perspectives opened by this work.