{{short description|German mathematician}} {{Infobox scientist | name = Michael Waidner | image = Michael Waidner.jpg | alma_mater = University of Karlsruhe | fields = IT security, privacy, cryptography, dependability | awards = ACM Distinguished Member | thesis_title = Byzantine distribution without cryptographic assumptions despite any number of errors | workplaces = Technische Universität Darmstadt, Fraunhofer Institute for Secure Information Technology, ATHENE | caption = | notable_students = Nadarajah Asokan }}
'''Michael Waidner''' (born on December 20, 1961, in Mühlacker)<ref>{{Cite news|url=https://www.faz.net/1.3127374|title=Im Gespräch: Michael Waidner: "Die Nutzer werden allmählich vernünftiger"|journal=Frankfurter Allgemeine Zeitung|access-date=2019-10-29|language=de|issn=0174-4909}}</ref> is a German computer scientist. He is director of the {{ill|Fraunhofer Institute for Secure Information Technology|de|Fraunhofer-Institut für Sichere Informationstechnologie}} and ATHENE, the largest research institute for IT security in Europe. He is also professor of security in information technology at the department of computer science of the Technische Universität Darmstadt.
He is known for his work in IT security, privacy, cryptography and dependability.
== Life == Waidner studied computer science at the University of Karlsruhe and received his doctorate in computer science in 1991. The title of his dissertation was "Byzantine distribution without cryptographic assumptions despite any number of errors".<ref>{{Cite thesis|title=Byzantinische Verteilung ohne kryptographische Annahmen trotz beliebig vieler Fehler|url=https://portal.dnb.de/opac.htm?method=simpleSearch&cqlMode=true&query=idn=930097238|first=Michael|last=Waidner}}</ref><ref>{{Cite web|url=https://publikationen.bibliothek.kit.edu/278291|title=Byzantinische Verteilung ohne kryptographische Annahmen trotz beliebig vieler Fehler|last=Waidner|first=Michael|date=1991|website=publikationen.bibliothek.kit.edu|language=de|access-date=2019-10-29}}</ref> From 1994 to 2006, he headed research in IT security and data protection at IBM Research - Zurich and was one of the initiators of the Zurich Information Security Center at ETH Zurich. He then moved to IBM in New York, where he was IBM Chief Technology Officer for Security and chairman of the IBM Security Architecture Board until September 2010.<ref>{{Cite web|url=https://www.sit.informatik.tu-darmstadt.de/de/mwaidner/|title=Michael Waidner|website=Security in Information Technology|language=de|access-date=2019-10-29}}</ref>
Since 2010, Waidner is professor at the department of computer science of the Technische Universität Darmstadt and director of the Fraunhofer Institute for Secure Information Technology in Darmstadt. Waidner is also director of ATHENE, the largest research institute for IT security in Europe.<ref>{{Cite web|url=https://www.crisp-da.de/en/about-us/committees/|title=Committees|website=CRISP|language=en|access-date=2019-10-29}}</ref><ref>{{Cite web|url=https://www.bmbf.de/de/groesstes-europaeisches-forschungszentrum-fuer-it-sicherheit-gegruendet-2023.html|title=Größtes europäisches Forschungszentrum für IT-Sicherheit gegründet - BMBF|last=BMBF-Internetredaktion|website=Bundesministerium für Bildung und Forschung - BMBF|language=de|access-date=2019-10-29}}</ref><ref>{{Cite web|url=https://www.sit.fraunhofer.de/en/the-institute/fraunhofer-sit/profile/|title=Profile|website=Fraunhofer SIT|language=en|access-date=2019-10-29}}</ref> He is a visiting professor at the Hebrew University of Jerusalem.
Since 2017, Waidner has also been chief digital officer of Darmstadt.<ref>{{Cite web|url=https://www.digitalstadt-darmstadt.de/news/neuer-chief-digital-officer/|title=Neuer "Chief Digital Officer"|website=Digitalstadt Darmstadt|access-date=2019-10-29}}</ref>
==Awards and honors== * 2018: ACM Distinguished Member<ref>{{cite web |url= https://www.acm.org/media-center/2009/february/acm-names-37-distinguished-members-for-advances-in-computing-technology |title= ACM Names 37 Distinguished Members for Advances in Computing Technology |author= Virginia Gold |date= February 5, 2009 |website= Association for Computing Machinery |publisher= |access-date= January 12, 2026 |quote=}}</ref>
== Publications == * Steiner, Michael & Tsudik, Gene & Waidner, Michael. (1999). Diffie-Hellman Key Distribution Extended to Group Communication. Proceedings of the ACM Conference on Computer and Communications Security. DOI: 10.1145/238168.238182. * Steiner, Michael & Tsudik, Gene & Waidner, Michael. (2000). Key Agreement in Dynamic Peer Groups. IEEE Transactions on Parallel and Distributed Systems. DOI: 11.10.1109/71.877936. * Asokan, N. & Schunter, Matthias & Waidner, Michael. (1997). Optimistic protocols for fair exchange. Proceedings of the 4th ACM Conference on Computer and Communications Security (CCS '97). ACM, New York, NY, US, 7–17. DOI: 10.1145/266420.266426. *Asokan, N. & Shoup, Victor & Waidner, Michael. (1998). Optimistic Fair Exchange of Digital Signatures. DOI: 10.1007/BFb0054156.
== Awards == He is a Fellow of the IEEE and ACM Distinguished Scientist.<ref>{{Cite web|url=https://www.sit.fraunhofer.de/de/ueber-uns/fraunhofer-sit/institutsprofil/|title=Institutsprofil|website=Fraunhofer SIT|language=de|access-date=2019-10-29}}</ref>
== References == <references /> {{Authority control}}
{{DEFAULTSORT:Waidner, Michael}} Category:1961 births Category:Fellows of the IEEE Category:Academic staff of Technische Universität Darmstadt Category:German computer scientists Category:Living people Category:Karlsruhe Institute of Technology alumni Category:German cryptographers Category:People from Mühlacker Category:Chief technology officers Category:Members of German Academy of Science and Engineering Acatech