Omar Hasan
omar.hasan at insa-lyon.fr

Publications

  • A Social-Capital based Approach to Blockchain-enabled Peer-to-Peer Lending. Janka Hartmann and Omar Hasan. The Third IEEE International Conference on Blockchain Computing and Applications (BCCA 2021). November 2021. [PDF]

  • Collateral-Free Trustworthiness-based Personal Lending on a Decentralized Application (DApp). Wisnu Uriawan, Omar Hasan, Youakim Badr and Lionel Brunie. The 18th International Conference on Security and Cryptography (SECRYPT 2021). July 2021. [PDF]

  • Privacy Preserving Reputation Systems based on Blockchain and other Cryptographic Building Blocks: A Survey. Omar Hasan, Lionel Brunie, Elisa Bertino. University of Lyon, INSA-Lyon, CNRS, LIRIS, UMR5205. 1 December 2020. Research Report. hal-03034994. [PDF]

  • GraphSIF: Analyzing Flow of Payments in a Business-to-Business Network to Detect Supplier Impersonation. Rémi Canillas, Omar Hasan, Laurent Sarrat, and Lionel Brunie. Applied Network Science (Springer). July 2020. Volume 5, Article 40. DOI: 10.1007/s41109-020-00283-1. [PDF] [Open Access]

  • Supplier Impersonation Fraud Detection Using Bayesian Inference. Rémi Canillas, Omar Hasan, Laurent Sarrat, and Lionel Brunie. The 7th IEEE International Conference on Big Data and Smart Computing (BigComp 2020). February 2020. [PDF]

  • A Transparent Referendum Protocol with Immutable Proceedings and Verifiable Outcome for Trustless Networks. Maximilian Schiedermeier, Omar Hasan, Lionel Brunie, Tobias Mayer, and Harald Kosch. The 8th International Conference on Complex Networks and their Applications (COMPLEX NETWORKS 2019). December 2019. Pages 647-658. [PDF]

  • Supplier Impersonation Fraud Detection in Business-To-Business Transaction Networks Using Self-Organizing Maps. Rémi Canillas, Omar Hasan, Laurent Sarrat, and Lionel Brunie. The 8th International Conference on Complex Networks and their Applications (COMPLEX NETWORKS 2019). December 2019. Pages 599-610. [PDF]

  • Exploratory Study of Privacy Preserving Fraud Detection. Rémi Canillas, Rania Talbi, Sara Bouchenak, Omar Hasan, Lionel Brunie, and Laurent Sarrat. 19th ACM/IFIP International Middleware Conference (Middleware 2018). December 2018. Pages 25-31. [PDF]

  • PrivaSense: Privacy-Preserving and Reputation-Aware Mobile Participatory Sensing. Hayam Mousa, Sonia Ben Mokhtar, Omar Hasan, Lionel Brunie, Osama Younes, and Mohiy Hadhoud. The 14th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2017). November 2017. [PDF]

  • Self-reported Verifiable Reputation with Rater Privacy. Rémi Bazin, Alexander Schaub, Omar Hasan, and Lionel Brunie. The 11th IFIP WG 11.11 International Conference on Trust Management (TM 2017). June 2017. [PDF]

  • A Reputation System Resilient Against Colluding and Malicious Adversaries in Mobile Participatory Sensing Applications. Hayam Mousa, Sonia Ben Mokhtar, Omar Hasan, Lionel Brunie, Osama Younes, and Mohiy Hadhoud. The 14th Annual IEEE Consumer Communications & Networking Conference (CCNC 2017). January 2017. [PDF]

  • 4PR: Privacy Preserving Routing in Mobile Delay Tolerant Networks. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, Lionel Brunie, and Ammar Hasan. Computer Networks (Elsevier). August 2016. Volume 111, Pages 17-28. DOI: 10.1016/j.comnet.2016.08.005. [PDF]

  • A Trustless Privacy Preserving Reputation System based on Blockchain. Alexander Schaub, Rémi Bazin, Omar Hasan, and Lionel Brunie. The 31st IFIP International Information Security and Privacy Conference (SEC 2016). May 2016. [PDF]

  • Privacy in Big Data. Book Chapter. Benjamin Habegger, Omar Hasan, Thomas Cerqueus, Lionel Brunie, Nadia Bennani, Harald Kosch, and Ernesto Damiani. Big Data: Storage, Sharing, and Security. Taylor & Francis, CRC Press. May 2016. [PDF]

  • Trust Management and Reputation Systems in Mobile Participatory Sensing Applications: A Survey. Hayam Mousa, Sonia Ben Mokhtar, Omar Hasan, Osama Younes, Mohiy Hadhoud, and Lionel Brunie. Computer Networks (Elsevier). October 2015. Volume 90, Pages 49-73. DOI: 10.1016/j.comnet.2015.07.011. [PDF]

  • A Delay and Cost Balancing Protocol for Message Routing in Mobile Delay Tolerant Networks. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, Lionel Brunie, and Gabriele Gianini. Ad Hoc Networks (Elsevier). September 2014. DOI: 10.1016/j.adhoc.2014.08.008. [PDF]

  • A Study and Comparison of Sentiment Analysis Methods for Reputation Evaluation. Anaïs Collomb, Crina Costea, Damien Joyeux, Omar Hasan, and Lionel Brunie. RR-LIRIS-2014-002. LIRIS, CNRS, INSA Lyon. March 2014. [PDF]

  • Personalization vs. Privacy in Big Data Analysis. Benjamin Habegger, Omar Hasan, Lionel Brunie, Nadia Bennani, Harald Kosch, and Ernesto Damiani. International Journal of Big Data. ISSN 2326-442X. January 2014. [PDF]

  • Improving the Accuracy of Business-to-Business (B2B) Reputation Systems through Rater Expertise Prediction. Heidi Dikow, Omar Hasan, Harald Kosch, Lionel Brunie, and Renaud Sornin. Computing (Springer). November 2013. DOI: 10.1007/s00607-013-0345-x. [PDF]

  • A Discussion of Privacy Challenges in User Profiling with Big Data Techniques: The EEXCESS Use Case. Omar Hasan, Benjamin Habegger, Lionel Brunie, Nadia Bennani, and Ernesto Damiani. The IEEE International Congress on Big Data (BigData Congress 2013). June 2013. [PDF]

  • A Decentralized Privacy Preserving Reputation Protocol for the Malicious Adversarial Model. Omar Hasan, Lionel Brunie, Elisa Bertino, and Ning Shang. IEEE Transactions on Information Forensics and Security (IEEE TIFS). April 2013. [PDF]

  • A Privacy Preserving Prediction-based Routing Protocol for Mobile Delay Tolerant Networks. Omar Hasan, Jingwei Miao, Sonia Ben Mokhtar, and Lionel Brunie. The 27th IEEE International Conference on Advanced Information Networking and Applications (AINA 2013), Barcelona, Spain. March 25 - 28, 2013. [PDF]

  • Privacy Preserving Reputation Management in Social Networks. Book Chapter. Omar Hasan and Lionel Brunie. Security and Privacy Preserving in Social Networks. Springer Verlag (Lecture Notes in Social Networks). March 2013. [PDF]

  • An Investigation on the Unwillingness of Nodes to Participate in Mobile Delay Tolerant Network Routing. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, Lionel Brunie, and Kangbin Yim. International Journal of Information Management (Elsevier). 2012. DOI: 10.1016/j.ijinfomgt.2012.11.001. [PDF]

  • An Analysis of Strategies for Preventing Selfish Behavior in Mobile Delay Tolerant Networks. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, Lionel Brunie, and Kangbin Yim. The 6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS 2012), Palermo, Italy. July 4 - 6, 2012. [PDF]

  • A Self-Regulating Protocol for Efficient Routing in Mobile Delay Tolerant Networks. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, and Lionel Brunie. The 5th IEEE International Conference on Digital Ecosystems and Technologies (DEST 2012), Campione d'Italia, Italy. June 18 - 20, 2012. [PDF]

  • Preserving Privacy of Feedback Providers in Decentralized Reputation Systems. Omar Hasan, Lionel Brunie, and Elisa Bertino. Computers & Security (Elsevier). 2011. DOI: 10.1016/j.cose.2011.12.003. [PDF]

  • An Adaptive Routing Algorithm for Mobile Delay Tolerant Networks. Jingwei Miao, Omar Hasan, Sonia Ben Mokhtar, and Lionel Brunie. The 14th Symposium on Wireless Personal Multimedia Communications (WPMC 2011), Brest, France. October 3 - 7, 2011. [PDF]

  • Leveraging Node Centrality and Regularity for Efficient Routing in Mobile Peer-to-Peer Networks. Jingwei Miao, Omar Hasan, and Lionel Brunie. The 4th International Conference on Data Management in Grid and P2P Systems (Globe 2011), Paul Sabatier University, Toulouse, France. September 1 - 2, 2011. [PDF]

  • A Privacy Preserving Reputation Protocol for Web Service Provider Selection. Omar Hasan, Lionel Brunie, and Ernesto Damiani. The 3rd IEEE International Workshop on Security Aspects of Process and Services Engineering (SAPSE 2011), in conjunction with the 35th Annual IEEE Computer Software and Applications Conference (COMPSAC 2011), Munich, Germany, July 18 - 22, 2011. [PDF]

  • k-Shares: A Privacy Preserving Reputation Protocol for Decentralized Environments. Omar Hasan, Lionel Brunie, and Elisa Bertino. The 25th IFIP International Information Security Conference (SEC 2010), Brisbane, Australia. September 20 - 23, 2010. [PDF]

  • Privacy Preserving Reputation Systems for Decentralized Environments. Ph.D. Thesis. Omar Hasan. INSA Lyon, France. September 2010. Advised by Prof. Lionel Brunie and Prof. Jean-Marc Pierson. [PDF]

  • Efficient Privacy Preserving Reputation Protocols Inspired by Secure Sum. Omar Hasan, Elisa Bertino, and Lionel Brunie. The 8th International Conference on Privacy, Security and Trust (PST 2010), Ottawa, Canada. August 17 - 19, 2010. [PDF]

  • Evaluation of the Iterative Multiplication Strategy for Trust Propagation in Pervasive Environments. Omar Hasan, Lionel Brunie, and Jean-Marc Pierson. The 6th ACM International Conference on Pervasive Services (ICPS 2009), Imperial College, London, UK. July 13 - 17, 2009. [PDF]

  • Elimination de la Subjectivité dans la Recommandation de Confiance. Omar Hasan, Lionel Brunie, Jean-Marc Pierson, and Elisa Bertino. 5èmes Journées Francophones Mobilité et Ubiquité (UbiMob 2009), Lille, France. July 7 - 8, 2009.

  • Elimination of Subjectivity from Trust Recommendation. Omar Hasan, Lionel Brunie, Jean-Marc Pierson, and Elisa Bertino. The 3rd IFIP International Conference on Trust Management (TM 2009), West Lafayette, IN, USA. June 15 - 19, 2009. [PDF]

  • Access Control for Ubiquitous Environments Based on Subjectivity Eliminated Trust Propagation. Omar Hasan, Jean-Marc Pierson, and Lionel Brunie. The 3rd Intl. Symposium on TRUST, in conjunction with The 2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC 2008), Shanghai, China. December 17 - 20, 2008. [PDF]

  • Elimination of Subjectivity from Trust Recommendation. Poster. Omar Hasan, Lionel Brunie, Jean-Marc Pierson, and Elisa Bertino. The 5th Midwest Security Workshop (MSW 2008), Indianapolis, USA. April 26, 2008.

  • Establishing Trust Beliefs Based on a Uniform Disposition to Trust. Rachid Saadi, Omar Hasan, Jean-Marc Pierson, and Lionel Brunie. The 3rd IEEE International Conference on Signal-Image Technology & Internet-Based Systems (SITIS 2007), Shanghai, China. December 16 - 19, 2007. [PDF]

  • Knowledge Exchange: A Discussion Board System Tailored for Teaching-Learning Settings. Omar Hasan, Jim Waters, Bruce Char, and Michael Atwood. The 3rd Hawaii International Conference on Education (HICE 2005), Honolulu, USA. January 4 - 7, 2005. [PDF]

  • A Context-Sensitive Search Mechanism. Omar Hasan, Michael Atwood, Jim Waters, and Bruce Char. The 8th IEEE International Multitopic Conference (INMIC 2004), Lahore, Pakistan. December 24 - 26, 2004. [PDF]

  • A Deployment-Ready Solution for Adding Quality-of-Service Features to Web Services. Omar Hasan and Bruce Char. The International Research Conference on Innovations in Information Technology (IIT 2004), Dubai, UAE. October 4 - 6, 2004. [PDF]

  • Knowledge Exchange: A Tool for Collaborative Learning. Poster. Omar Hasan, Jim Waters, Michael Atwood, and Bruce Char. Drexel Research Day 2003, Drexel University, Philadelphia, USA. April 22, 2003. [PDF]

  • A Peer-to-Peer Intermediary for Building Enterprise-Class Web Services. Master's Thesis. Omar Hasan. Drexel University, Philadelphia, USA. August 2002. Advised by Prof. Bruce Char. [PDF]

  • A Peer-to-Peer Intermediary for Building Enterprise-Class Web Services. Poster. Omar Hasan and Bruce Char. Drexel Research Day 2002, Drexel University, Philadelphia, USA. May 7, 2002. [PDF]