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PrivaSense: Privacy-Preserving and Reputation-Aware Mobile Participatory Sensing

Hayam Mousa , Sonia Ben Mokhtar , Omar Hasan , Lionel Brunie , Osama Younes , et al.
Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2017), Nov 2017, Melbourne, Australia
Communication dans un congrès hal-01940035v1

Elimination of Subjectivity from Trust Recommendation

Omar Hasan , Lionel Brunie , Jean-Marc Pierson , Elisa Bertino
The 3rd IFIP International Conference on Trust Management (TM 2009), Jun 2009, Purdue University, West Lafayette, IN, United States. pp.65-80, ⟨10.1007/978-3-642-02056-8_5⟩
Communication dans un congrès hal-01437654v1

4PR: Privacy Preserving Routing in Mobile Delay Tolerant Networks

Jingwei Miao , Omar Hasan , Sonia Ben Mokhtar , Lionel Brunie , Ammar Hasan
Computer Networks, 2016, ⟨10.1016/j.comnet.2016.08.005⟩
Article dans une revue hal-01535796v1

Supplier Impersonation Fraud Detection in Business-To-Business Transaction Networks Using Self-Organizing Maps

Rémi Canillas , Omar Hasan , Laurent Sarrat , Lionel Brunie
The 8th International Conference on Complex Networks and their Applications (COMPLEX NETWORKS 2019), Dec 2019, Lisbon, Portugal. ⟨10.1007/978-3-030-36683-4_48⟩
Communication dans un congrès hal-02451385v1

Leveraging Node Centrality and Regularity for Efficient Routing in Mobile Peer-to-Peer Networks.

Jingwei Miao , Omar Hasan , Lionel Brunie
5th International Conference on Data Management in Grid and Peer-to-Peer Systems, Sep 2011, Toulouse, France. pp.83-94, ⟨10.1007/978-3-642-22947-3_8⟩
Communication dans un congrès hal-01354556v1

Privacy in Big Data

Benjamin Habegger , Omar Hasan , Cerqueus Thomas , Lionel Brunie , Nadia Bennani , et al.
Big Data: Storage, Sharing, and Security , Taylor & Francis, CRC Press, 2016, Privacy in Big Data. 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]
Chapitre d'ouvrage hal-01535812v1

An Analysis of Strategies for Preventing Selfish Behavior in Mobile Delay Tolerant Networks

Jingwei Miao , Omar Hasan , Sonia Ben Mokhtar , Lionel Brunie , Kangbin Yim
The 6th International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing (IMIS 2012), Jul 2012, Palermo, Italy. pp.208-2015, ⟨10.1109/IMIS.2012.121⟩
Communication dans un congrès hal-01353130v1

Supplier Impersonation Fraud Detection using Bayesian Inference

Rémi Canillas , Omar Hasan , Laurent Sarrat , Lionel Brunie
6th IEEE International Conference on Big Data and Smart Computing (IEEE BigComp 2020), Feb 2020, Busan, South Korea. ⟨10.1109/BigComp48618.2020.00-53⟩
Communication dans un congrès hal-02451446v1

A Reputation System Resilient Against Colluding and Malicious Adversaries in Mobile Participatory Sensing Applications

Hayam Mousa , Sonia Ben Mokhtar , Omar Hasan , Lionel Brunie , Osama Shible Youness , et al.
The 14th Annual IEEE Consumer Communications & Networking Conference (CCNC 2017), Jan 2017, Las Vegas, United States
Communication dans un congrès hal-01535819v1

A social-capital based approach to blockchain-enabled peer-to-peer lending

Janka Hartmann , Omar Hasan
The Third IEEE International Conference on Blockchain Computing and Applications (BCCA 2021), Nov 2021, Tartu, Estonia
Communication dans un congrès hal-03371872v1

Collateral-Free Trustworthiness-Based Personal Lending on a Decentralized Application (DApp)

Wisnu Uriawan , Omar Hasan , Youakim Badr , Lionel Brunie
The 18th International Conference on Security and Cryptography (SECRYPT 2021), Jul 2021, Lieusaint - Paris, France
Communication dans un congrès hal-03258921v1

Privacy preserving reputation systems for decentralized environments

Omar Hasan
2010
Pré-publication, Document de travail hal-01461625v1

A Self-Regulating Protocol for Efficient Routing in Mobile Delay Tolerant Networks

Jingwei Miao , Omar Hasan , Sonia Ben Mokhtar , Lionel Brunie
The 5th IEEE International Conference on Digital Ecosystems and Technologies (IEEE DEST-CEE 2012), Jun 2012, Campione d'Italia, Italy. pp.1-6, ⟨10.1109/DEST.2012.6227912⟩
Communication dans un congrès hal-01353129v1

An investigation on the unwillingness of nodes to participate in mobile delay tolerant network routing

Jingwei Miao , Omar Hasan , Sonia Ben Mokhtar , Lionel Brunie , Kangbin Yim
International Journal of Information Management, 2013, 2, 33, pp.252-262. ⟨10.1016/j.ijinfomgt.2012.11.001⟩
Article dans une revue hal-01351700v1

Improving the Accuracy of Business-to-Business (B2B) Reputation Systems through Rater Expertise Prediction

Heidi Dikow , Omar Hasan , Harald Kosch , Lionel Brunie , Renaud Sornin
Computing, 2013, pp.1-21. ⟨10.1007/s00607-013-0345-x⟩
Article dans une revue hal-01339294v1
Image document

A Survey of Privacy Preserving Reputation Systems

Omar Hasan
[Technical Report] LIRIS UMR 5205 CNRS/INSA de Lyon/Université Claude Bernard Lyon 1/Université Lumière Lyon 2/École Centrale de Lyon. 2017
Rapport hal-01635314v1
Image document

Privacy Preserving Reputation Systems based on Blockchain and other Cryptographic Building Blocks: A Survey

Omar Hasan , Lionel Brunie , Elisa Bertino
[Research Report] University of Lyon; INSA-Lyon; CNRS - LIRIS - UMR5205. 2020
Rapport hal-03034994v1

GraphSIF: analyzing flow of payments in a Business-to-Business network to detect supplier impersonation

Rémi Canillas , Omar Hasan , Laurent Sarrat , Lionel Brunie
Applied Network Science, 2020, 5 (1), ⟨10.1007/s41109-020-00283-1⟩
Article dans une revue hal-02989006v1
Image document

Collusion-Resistant Worker Set Selection for Transparent and Verifiable Voting

Matthieu Bettinger , Lucas Barbero , Omar Hasan
SN Computer Science, 2022, 3 (5), pp.334. ⟨10.1007/s42979-022-01227-5⟩
Article dans une revue hal-03699093v1

A Privacy Preserving Prediction-based Routing Protocol for Mobile Delay Tolerant Networks

Omar Hasan , Jingwei Miao , Sonia Ben Mokhtar , Lionel Brunie
The 27th IEEE International Conference on Advanced Information Networking and Applications (AINA-2013), Mar 2013, Barcelona, Spain. pp.546-553, ⟨10.1109/AINA.2013.6⟩
Communication dans un congrès hal-01339143v1

Preserving Privacy of Feedback Providers in Decentralized Reputation Systems

Omar Hasan , Lionel Brunie , Elisa Bertino
Computers & Security, 2012, 7, 31, pp.816-826. ⟨10.1016/j.cose.2011.12.003⟩
Article dans une revue hal-01352961v1

Efficient Privacy Preserving Reputation Protocols Inspired by Secure Sum

Omar Hasan , Elisa Bertino , Lionel Brunie
The 8th International Conference on Privacy, Security and Trust (PST 2010), Aug 2010, Ottawa, Canada. pp.126-133, ⟨10.1109/PST.2010.5593245⟩
Communication dans un congrès hal-01381565v1

Trust management and reputation systems in mobile participatory sensing applications: A survey

Hayam Mousa , Sonia Ben Mokhtar , Omar Hasan , Osama Younes , Hadhoud Mohiy , et al.
Computer Networks, 2015, 90, pp.49-73
Article dans une revue hal-01265403v1

An adaptive routing algorithm for mobile delay tolerant networks

Jingwei Miao , Omar Hasan , Sonia Ben Mokhtar , Lionel Brunie
14th International Symposium on Wireless Personal Multimedia Communications (WPMC), Oct 2011, Brest, France. pp.1-5
Communication dans un congrès hal-01354555v1

Privacy Preserving Reputation Management in Social Networks

Omar Hasan , Lionel Brunie
Richard Chbeir and Béchara Al Bouna. Security and Privacy Preserving in Social Networks, Springer Verlag (Lecture Notes in Social Networks), pp.245-280, 2013, ⟨10.1007/978-3-7091-0894-9_8⟩
Chapitre d'ouvrage hal-01339144v1

A Transparent Referendum Protocol with Immutable Proceedings and Verifiable Outcome for Trustless Networks

Maximilian Schiedermeier , Omar Hasan , Lionel Brunie , Tobias Mayer , Harald Kosch
The 8th International Conference on Complex Networks and their Applications (COMPLEX NETWORKS 2019), Dec 2019, Lisbon, Portugal. ⟨10.1007/978-3-030-36687-2_54⟩
Communication dans un congrès hal-02451370v1

LAPS: Computing Loan Default Risk from User Activity, Profile, and Recommendations

Wisnu Uriawan , Omar Hasan , Youakim Badr , Lionel Brunie
The Fourth IEEE International Conference on Blockchain Computing and Applications (BCCA 2022), Sep 2022, San Antonio, United States. ⟨10.1109/BCCA55292.2022.9922034⟩
Communication dans un congrès hal-03777603v1

Privacy considerations for a decentralized finance (DeFi) loans platform

Janka Hartmann , Omar Hasan
Cluster Computing, 2022, ⟨10.1007/s10586-022-03772-3⟩
Article dans une revue hal-03816285v1

Access Control for Ubiquitous Environments Based on Subjectivity Eliminated Trust Propagation

Omar Hasan , Jean-Marc Pierson , Lionel Brunie
The 3rd Intl. Symposium on TRUST, in conjunction with the 2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC 2008), Dec 2008, Shanghai, China. pp.603-609, ⟨10.1109/EUC.2008.66⟩
Communication dans un congrès hal-01584486v1

Secure and efficient decentralized machine learning through group-based model aggregation

Brandon Mosqueda González , Omar Hasan , Wisnu Uriawan , Youakim Badr , Lionel Brunie
Cluster Computing, 2023, ⟨10.1007/s10586-023-04174-9⟩
Article dans une revue hal-04287874v1