Levente BUTTYÁN Professor Laboratory of Cryptography and Systems Security (CrySyS Lab) Department of Networked Systems and Services Budapest University of Technology and Economics address: BME-HIT, Magyar tudósok krt. 2, 1117 Budapest, Hungary phone: +36 1 463 1803,     fax: +36 1 463 3263 e-mail: buttyan (at) crysys.hu; buttyan (at) hit.bme.hu; buttyan.levente (at) vik.bme.hu office: IE.431

Research

Research topics

• Security in cyber-physical systems.

In the past:

• Detection of malware infections, incident response and forensic analysis. Selected papers: [BPBF12eurosec, BPBF12fi]
• Secure cloud based data storage. Selected papers: [LSzB12cloudsec-a, LSzB12cloudsec-b]
• Designing robust network topologies. Selected papers: [LBSz13pmc, LSzB12gnets, LSzB12gamesec]
• Query auditing algorithms for protecting aggregate values in statistical databases. Selected papers: [TB12trustbus]
• Traffic analysis in body area sensor networks. Selected papers: [BH12dspan]
• Using machine learning for predicting undisclosed attributes in social networks. Selected papers: [KB12sesoc]
• Automated formal analysis of secure ad hoc network routing protocols. Selected papers: [BT10wmnc, TaB11tsj, BT11pp]
• Securing reliable transport protocols in sensor networks. Selected papers: [BC10persens, BG11icc, DBT13icc]
• Private cluster head election in sensor networks. Selected papers: [BH09wsns, BH10wsns, HB11ijdsn]
• Security mechanisms for mesh networks. Selected papers: [BD09hotmesh, ABD10hotmesh, A+10wcmc, BDMP10comcom]
• Stimulating cooperation in mobile opportunistic networks. Selected papers: [BDFV07aoc, BDFV10adhoc]
• Security of network coding based storage systems. Selected papers: [BCV11tdsc, BCV10sutc]
• Secure routing in multi-hop wireless networks. Selected papers: [ABV05esas, ABV06tmc, AB08ios]
• Security and privacy of vehicular communication systems. Selected papers: [BHV07esas, BHWW09vnc, P+07itst, P+08commag, K+08commag]
• Private authentication of RFID tags. Selected papers: [BHV06pet, ABHV07tspuc]
• Resilient data aggregation in sensor networks. Selected papers: [BSV06persens, BSV06sasn, BSV09adhoc]
• Wormhole detection in ad hoc and sensor networks [CBH03sasn, BDV05esas]
• Lightweight cryptographic primitives for highly resource constrained applications [VB03suc]
• Design of authentication and key establishment protocols [BNV01periodica, BGSW00ieeetc, BSW98csfw]
• Rational exchange protocols [BHC04jcs, B00ieeletters]
• Stimulating cooperation in wireless ad hoc networks [BH00mobihoc, BH03monet, BBHJ03mobihoc, JHB03fc, FHB06ieeetmc, BBHJ06ieeetmc]
• Security in wireless ad hoc networks [CBH03ieeetmc, BH02mc2r, CHB03mobihoc, HBC01mobihoc]
• Security for middleware based service architectures [BSW99kollegbook, SBCWRZ99dais]

Research projects

• IoTAC - Security-by-Design IoT Development and Certificate Framework with Front-end Access Control (EU H2020, 2020-2023)
• SETIT - Security Enhancing Techniques for the Internet of Things (National Excellence Program, 2018-2022)
• PrOTectME - Protecting Operational Technologies of Medium Enterprises from Cyber Risks (EIT Digital, 2021)

In the past:

• SECREDAS - Cyber Security for Cross Domain Reliable Dependable Automated Systems (EU H2020 ECSEL, 2018-2021)
• DIGMAN - Security for DIGital MANufacturing (VKE, 2018-2020)
• SEC4CI - Security Operation Center for Critical Infrastructures (EIT Digital, 2017-2018)
• VCG - Vehicle Cyber Guard (GINOP, 2017-2019)
• PIRAMID - Computer Security Incident Response Lab for ICS in Nuclear Facilities (IAEA, 2017-2019)
• Obfuscation - Cryptographic obfuscation in practice (OTKA, 2016-2019)
• IntelliSec - Integrated Security Data Analytics Platform (EIT Digital, 2016)
• ROSCO - Repository of Signed Code (visit rosco.crysys.hu) (ONRG, 2013-2015)
• RADIR - Rapid Attack Detection and Incident Response (NFÜ, 2013-2014)
• CHIRON - Cyclic and Person-centric Health Management (EU ARTEMIS IP, 2010-2013)
• WSAN4CIP - Wireless Sensor and Actuator Networks for Critical Infrastructure Protection (EU FP7 STREP, 2009-2011)
• EU-MESH - Enhanced, Ubiquitous, and Dependable Broadband Access using MESH Networks (EU FP7 STREP, 2008-2010)
• BIONETS - Biologically Inspired Networks and Services (EU FET IP, 2006-2009)
• UbiSecSens - Ubiquitous Sensing and Security (EU FP6 STREP, 2006-2008)
• SeVeCom - Secure Vehicle Communications (EU FP6 STREP, 2006-2008)
• MobileSEC - Strong User and Device Authentication in Mobile Environments (NKFP Jedlik Program, 2006-2007)
• MOSSAT - MObility Supporting Security ArchiTectures (MIK project 2.3.1, 2005-2008)
• MESSENGER - Streaming in mobile environments (NKFP, 2005-2006)
• CrySTINA - design of a security architecture for TINA (funding: Swiss NSF)
• CLUE - design and prototype implementation of a security architecture for middleware based telecommunication services (funding: Swisscom CT)
• CASTING - design of authentication and payment protocols for mobile devices with short range wireless communication capabilities (funding: Swisscom CT)
• StreamCom - design and prototype implementation of a micropayment scheme for broadcast multimedia (funding: Swiss NSF)
• Terminodes - security and cooperation in self-organizing ad hoc networks (funding: Swiss NSF)

More information is available at the research page of the CrySyS Lab.

PhD students under my supervision

• András Gazdag
  automotive security and privacy;

In the past:

• Dr. Dorottya Papp
  • title: Improved security and protection from malware for embedded IoT devices
  • defended: October 2021
  • reviewers:
    Dr. Ákos Kiss, University of Szeged
    Dr. István Majzik, Budapest University of Technology and Economics
  • current position: Post-doc at the CrySyS Lab


• Dr. Máté Horváth
  • title: Cryptographic Problems in the Context of Data Markets
  • defended: May 2021
  • reviewers:
    Dr. Melek Önen, Eurecom, France
    Dr. Attila Pethő, Debrecen University
  • current position: Post-doc at the CrySyS Lab


• Dr. Gábor Pék
  • title: New Methods for Detecting Malware Infections and New Attacks against Hardware Virtualization
  • defended: June 2015
  • reviewers:
    Prof. Herbert Bos, Vrije Universiteit Amsterdam, Netherlands
    Dr. László Lengyel, Budapest University of Technology and Economics
  • current position: CTO at avatao


• Dr. Áron Lászka
  • title: Robustness Against Strategic Attacks
  • defended: July 2014
  • reviewers:
    Dr. Patrick Loiseau, Eurecom Institute, France
    Dr. János Tapolcai, Budapest University of Technology and Economics
  • current position: Assistant Professor at the University of Houston, USA


• Dr. Vinh Thong Ta
  • title: Automated security verification of networking protocols and query auditing algorithms for wireless sensor networks
  • defended: January 2014
  • reviewers:
    Dr. Panos Papadimitratos, KTH, Sweden
    Dr. István Majzik, Budapest University of Technology and Economics
  • current position: Lecturer at University od Central Lancashire, UK


• Dr. Tamás Holczer
  • title: Privacy enhancing protocols for wireless networks
  • defended: April 2013
  • reviewers:
    Dr. Claude Castelluccia, INRIA, France
    Dr. Péter Ligeti, Eötvös University of Sciences, Budapest
  • current position: Assistant Professor in the CrySyS Lab, BME


• Dr. László Dóra
  • title: Secure data forwarding in wireless multi-hop networks for mobile users
  • defended: June 2011
  • reviewers:
    Prof. Sonja Buchegger, KTH, Sweden
    Dr. Tibor Remzsö, Budapest University of Technology and Economics
  • current position: freelancer (previously: Mobile Security Engineer at Citi, Hungary)


• Dr. Gergely Ács
  • title: Secure routing in multi-hop wireless networks
  • defended: June 2009
  • reviewers:
    Prof. Gene Tsudik, University of California, Irvine
    Dr. Rolland Vida, Budapest University of Technology and Economics
  • current position: Assistant Professor in the CrySyS Lab, BME


• Dr. Péter Schaffer
  • title: Resilient data aggregation in sensor networks
  • defended: June 2009
  • reviewers:
    Dr. Dirk Westhoff, NEC Europe, Heidelberg
    Dr. Attila Vidács, Budapest University of Technology and Economics
  • current position:Cybersecurity Manager at Ferrero, Luxemburg