OPERANDI 2018: Open Day for Privacy, Transparency and Decentralization

July 23, 2018
2:00–6:30 PM
Co-located with PETS 2018
Aula 1, Centre de Cultura Contemporània de Barcelona, Barcelona, Spain

More space is available! Register here: https://operandi2018.eventbrite.com/

14:00 Opening

14:05 Lightning Talks

1. Rate-Based Congestion Control for Tor
   Stefanie Roos, Ian Goldberg


2. Metric-based local differential privacy for statistical applications
   Mario S. Alvim, Konstantinos Chatzikokolakis, Catuscia Palamidessi, Anna Pazii


3. Advances in Secure Group Messaging
   Nik Unger and Ian Goldberg


4. Introduction to the Katzenpost Mix Network System
   David Stainton, George Danezis, Claudia Diaz, Ania Piotrowska, Yawning Angel


5. Anonymous Bitcoin
   Amir Taaki


6. R3C3: Cryptographically secure Censorship Resistant Rendezvous using Cryptocurrencies
   Mohsen Minaei, Pedro Moreno-Sanchez, Aniket Kate


7. Encrypted communication for mere mortals superheroes welcome, too
   meskio


8. ConsenSGX: Scaling Anonymous Communication Networks
   Sajin Sasy, Ian Goldberg


9. Chainspace: A Sharded Smart Contracts Platform
   Mustafa Al-Bassam, Alberto Sonnino, Shehar Bano, Dave Hrycyszyn, George Danezis


10. Measuring the Safety of New Rust Contributions
    Justin Tracey, Ian Goldberg


11. Co-ordinating Developers and High-Risk Users
    Ksenia Ermoshina, Harry Halpin, Francesca Musiani


12. Security as a community healthcare: keeping small non-profit organisations secure
    Eva Blum-Dumontet


13. Mitigator: Detecting privacy policy compliance using Intel SGX
    Miti Mazmudar, Ian Goldberg


14. Blockchain in AdTech
    Mike Freyberger, Miguel Morales


15. PPAD: Privacy Preserving Group-Based ADvertising in Online Social Networks
    Sanaz Taheri Boshrooyeh, Alptekin Küpçü, Öznur Özkasap

15:20 Break

15:35 DECODE Overview "Giving people ownership of their personal data" — F. Bria (Chief Technology and Digital Innovation Officer Comissionada de Tecnologia i Innovació Digital Ajuntament de Barcelona)

15:45 Panel "Privacy, transparency & usability" — Jaromil (DYNE), Oleguer Sagarra (DRIBIA), Guillem Camprodon (SmartCitizen, Fab Lab Barcelona)

16:15 Panel "PETS as a Core value at City Councils and the role of GDPR" — Jaap-Henk Hoepman and Josep Domingo-Ferrer

16:45 Break

16:55 Poster & Demos teaser talks

1. Inspect what your location history reveals about you
   Antoine Boutet, Alexandre van Beurden , Sébastien Gambs


2. Techniques for Obscuring On-Screen Text from Passive Shoulder Surfers
   Steven Engler, Ian Goldberg


3. A Study on the Privacy Implications of Mobile Parental Control Apps
   Álvaro Feal, Julien Gamba, Narseo Vallina-Rodríguez, Carmela Troncoso, Alessandra Gorla, Paolo Calciati


4. Introducing the MassBrowser Censorship Circumvention System
   Milad Nasr, Hadi Zolfaghari, Amir Houmansadr


5. How personal data disclosure online can compromise the privacy of others and what can be done about it?
   Benjamin Trubert, Mathias Humbert, Kévin Huguenin


6. Defending Against Membership Inference Attacks or Why Fairness and Privacy Should Be Friends
   Yaghini Mohammad, Bogdan Kulynych, Carmela Troncoso


7. ClaimChain: improving the security and privacy of in-band key distribution for messaging
   Bogdan Kulynych, Marios Isaakidis, Carmela Troncoso, George Danezis


8. Git Blame Who?: Stylistic Authorship Attribution of Small, Incomplete Source Code Fragments
   Edwin Dauber, Aylin Caliskan, Richard Harang, Rachel Greenstadt


9. Enabling Personal Data Processing Control via Dynamic Consent
   Olha Drozd, Rigo Wenning, Sabrina Kirrane


10. LoopTor: resisting traffic-analysis without changing Tor
    Wouter Lueks, Álvaro Feal, Carmela Troncoso


11. Incentivising Privacy in Cryptocurrencies
    Sarah Azouvi, Alexander Hicks, Haaroon Yousaf


12. MyBubble: Influence of Algorithms in Users’ Filter Bubbles
    Pelayo Vallina, Antonio Fernández Anta, Ruben Cuevas, Esteban Moro


13. Web Mirror: A Personalised Reflection of Online Trackers
    Dorota Filipczuk, Richard Gomer, Enrico Gerding, m.c. schraefel


14. PrivacyScore: Creating Transparency with a Public Website Benchmarking Platform
    Henning Pridöhl, Dominik Herrmann


15. Transparency into the Causes of Website Inaccessibility
    Sadia Afroz, Huilin Chen, Mobin Javed, Marc Juarez, Vern Paxson, Shoaib Asif Qazi, Shaarif Sajid, Michael Carl Tschantz

17:25 — 18:30 Poster & Demo Session

19:00 — 21:00 Joint OPERANDI / PETS Welcome Reception

Organizing Committee

Gemma Galdon Clavell, Eticas Consulting

Carmela Troncoso, EPFL

Emiliano De Cristofaro, UCL

Harry Halpin, INRIA

Comissionate of Technology and Digital Innovation at Barcelona City Council

DECODE, NEXTLEAP and PANORAMIX are funded by the European Union's Horizon 2020 Programme, under grant agreements number 732546, 688722, and 653497.