Manager CROSSING

Johannes Braun

Dr.-Ing. Johannes Braun

Cryptography & Complexity Theory
CROSSING

Manager CROSSING

Contact

work +49 6151 16-20664
fax +49 6151 16-22487

Work S2|20 102
Pankratiusstraße 2
64289 Darmstadt

Short CV

  • since 10/2014: Manager of the DFG Collaborative Research Center 1119 CROSSING
  • 04/2015 Doctorate in Computer Science (Dr.-Ing.) at Technische Universität Darmstadt. Thesis: Maintaining Security and Trust in Large Scale Public Key Infrastructures, Supervisor: Prof. Dr. Johannes Buchmann
  • 05/2010-4/2015: PhD student, Technische Universität Darmstadt, Germany
  • 10/2004-12/2009 Diploma in Computer Science and Business Economics (Wirtschaftsinformatik), TU Darmstadt, Germany

Research Interests

  • Public Key Infrastructures
  • Web PKI
  • Electronic Identities and Signatures
  • Applied Cryptography
  • Long Term Security

Theses

Braun, Johannes (2015):
Maintaining Security and Trust in Large Scale Public Key Infrastructures.
TU Darmstadt, [Online-Edition: http://tuprints.ulb.tu-darmstadt.de/4566],
[Ph.D. Thesis]

Braun, Johannes (2009):
Nutzung des elektronischen Personalausweises im eCommerce.
Darmstadt, Technische Universität, [Diploma Thesis or Magisterarbeit]

EU FP7: FutureID – Shaping the future of electronic identity

ISPRAT e.V.: Schlanke Infrastrukturen für den digitalen Rechtsverkehr: Vorwärtssichere Verfahren für qualifizierte elektronische Signaturen

ISPRAT e.V.: Der elektronische Safe als vertrauenswürdiger Cloud Service

Deutsche Telekom AG: MONA – Mobile Authentisierung mit dem neuen Personalausweis

SCIKE: Software-Cluster: Software-Cluster-Internationalisierungsstrategie zur Komplettierung von Kernkompetenzen für Zukunftsthemen der Unternehmenssoftwarebranche


Lectures, Seminars

  • Public Key Infrastructures; lecture; summer term 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
  • Grundlagen der Informatik 2; lecture; summer term 2014
  • Implementation of a reputation system for CA trust management; Implementation of proactive revocation checking; crypto lab; summer term 2014
  • Implementation of a universal certificate verification service based on notaries; Implementation of a Firefox Extension for external certificate path validation; crypto lab; winter term 2013/14
  • Electronic Society; conference seminar; winter term 2012/13; summer term 2013
  • Secure Multiparty AES; crypto lab; winter term 2012/13
  • Forward secure signatures for Certification Authorities; PKI lab; summer term 2012
  • Cloudsafe – sicherer Datenspeicher in der Cloud; crypto lab; summer term 2011
  • Electronic Identities; conference seminar; winter term 2010/11


Supervised Theses

  • Mobile Authentisierung mit dem neuen Personalausweis (MONA); Moritz Horsch; Master thesis; 2011
  • Individuell angepasstes Vertrauen in die Web-PKI. Eine Analyse des Einsparungspotentials an vertrauenswürdigen CAs; Gregor Rynkowski; Master thesis; 2013
  • Policy-basierter Vergleich von Zertifizierungspraktiken innerhalb der Web-PKI; Michael Gleser; Bachelor thesis; 2013
  • Integration von vorwärtssicheren Signaturverfahren in die CA Infrastruktur; Sheng Guo; Studienarbeit; 2012
  • Design and deployment of a public key infrastructure; Christian Klos; Bachelor thesis; 2013
  • Risk Simulations for the Web PKI; Daniel Franke; Bachelor thesis; 2014
  • Reputation Systems for Trust Management in the Web PKI; Jiska Classen; Master thesis; 2014
  • NotaryCache: Preventing man-in-the-middle attacks through ubiquitous multi-path probing; Fabian Letzkus; Master thesis; 2015
  • Implementation of a Reputation System for CA Trust Management; Isabella Dix; Bachelor thesis; 2016
  • Analyse von TLS Bibliotheken basierend auf Fuzz Testing; Johannes Roth; Bachelor thesis; 2016
Jump to: 2019 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008
Number of items: 38.

2019

Bindel, Nina and Braun, Johannes and Gladiator, Luca and Stöckert, Tobias and Wirth, Johannes (2019):
X.509-Compliant Hybrid Certificates for the Post-Quantum Transition.
In: Journal of Open Source Software, 4 (40), The Open Journal, ISSN 2475-9066,
DOI: 10.21105/joss.01606,
[Article]

Schneider, Tidarat and Kerber, Jens and Goldstein, Denise and Takeva, Savina and Stemmler, Elisabeth Braun, Johannes and Schneider, Tidarat and Goldstein, Denise (eds.) (2019):
Software-Cluster international - Innovation durch Internationalisierung: Ein Leitfaden.
TU Darmstadt, [Online-Edition: https://software-cluster.org/wp-content/uploads/2019/08/GESA...],
[Report]

Graf, Holger and Schwarz, Reinhard and Becker, Tilman and Mück, Jürgen Goldstein, Denise and Schneider, Tidarat and Braun, Johannes (eds.) (2019):
SCIKE Innovationsbericht - Innovation durch Internationalisierung.
TU Darmstadt, [Online-Edition: https://software-cluster.org/wp-content/uploads/2019/08/GESA...],
[Report]

2017

Horsch, Moritz and Braun, Johannes and Buchmann, Johannes (2017):
Password Assistance.
In: Open Identity Summit 2017, Karlstad, Sweden, [Conference or Workshop Item]

Mulholland, John and Mosca, Michele and Braun, Johannes (2017):
The Day the Cryptography Dies.
In: IEEE Security & Privacy, 15 (4), pp. 14-21, DOI: 10.1109/MSP.2017.3151325,
[Article]

Horsch, Moritz and Braun, Johannes and Metz, Dominique and Buchmann, Johannes (2017):
Update-tolerant and Revocable Password Backup.
In: ACISP 2017 - 22nd Australasian Conference on Information Security and Privacy, Auckland, New Zealand, [Conference or Workshop Item]

Buchmann, Johannes and Braun, Johannes and Demirel, Denise and Geihs, Matthias (2017):
Quantum Cryptography: a view from classical cryptography.
In: Quantum Science and Technology, 2 (2), DOI: 10.1088/2058-9565/aa69cd,
[Article]

Braun, Johannes and Buchmann, Johannes and Demirel, Denise and Fujiwara, Mikio and Geihs, Matthias and Moriai, Shiho and Sasaki, Masahide and Waseda, Atsushi (2017):
SHORT PAPER: LINCOS - A Storage System Providing Long-Term Integrity, Authenticity, and Confidentiality.
In: LNCS, In: ASIACCS 2017 - ACM Asia Conference on Computer and Communications Security, Springer, Abu Dhabi, UAE, [Conference or Workshop Item]

2016

Horsch, Moritz and Schlipf, Mario and Haas, Stefan and Braun, Johannes and Buchmann, Johannes (2016):
Password Policy Markup Language.
264In: LNI, In: Open Identity Summit, [Conference or Workshop Item]

Braun, Johannes and Buchmann, Johannes and Demirel, Denise and Fujiwara, Mikio and Geihs, Matthias and Moriai, Shiho and Sasaki, Masahide and Waseda, Atsushi (2016):
LINCOS - A Storage System Providing Long-Term Integrity, Authenticity, and Confidentiality (Full Paper).
[Other]

Horsch, Moritz and Schlipf, Mario and Braun, Johannes and Buchmann, Johannes (2016):
Password Requirements Markup Language.
In: ACISP 2016 - 21st Australasian Conference on Information Security and Privacy, Melbourne, Australia, [Conference or Workshop Item]

2015

Classen, Jiska and Braun, Johannes and Volk, Florian and Hollick, Matthias and Buchmann, Johannes and Mühlhäuser, Max (2015):
A Distributed Reputation System for Certification Authority Trust Management.
In: 14th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE UbiSafe Symposium), Helsinki, Finland, [Conference or Workshop Item]

Braun, Johannes (2015):
Maintaining Security and Trust in Large Scale Public Key Infrastructures.
TU Darmstadt, [Online-Edition: http://tuprints.ulb.tu-darmstadt.de/4566],
[Ph.D. Thesis]

2014

Braun, Johannes (2014):
Ubiquitous support of multi path probing: Preventing man in the middle attacks on Internet communication.
In: IEEE Conference on Communications and Network Security (IEEE CNS 2014 Poster Session), San Francisco, USA, [Conference or Workshop Item]

Wiesmaier, Alexander and Braun, Johannes and Horsch, Moritz (2014):
EP 2639997 - Method and system for secure access of a first computer to a second computer.
[Standards, patents]

Braun, Johannes and Volk, Florian and Classen, Jiska and Buchmann, Johannes and Mühlhäuser, Max (2014):
CA Trust Management for the Web PKI.
In: IOS Press: Journal of Computer Security, 22(6), 2014, pp. 913-959 (2014), [Article]

Braun, Johannes and Buchmann, Johannes and Mullan, Ciaran and Wiesmaier, Alexander (2014):
Long Term Confidentiality: a Survey.
In: Designs, Codes and Cryptography, 71 (3), pp. 459-478, DOI: 10.1007/s10623-012-9747-6,
[Article]

2013

Braun, Johannes and Volk, Florian and Buchmann, Johannes and Mühlhäuser, Max Katsikas, Sokatis and Agudo, Isaac (eds.) (2013):
Trust Views for the Web PKI.
In: LNCS, Springer Berlin Heidelberg, In: Public Key Infrastructures, Services and Applications - EuroPKI 2013, pp. 134-151, ISSN 0302-9743,
[Conference or Workshop Item]

Braun, Johannes and Kiefer, Franziskus and Hülsing, Andreas Katsikas, Sokratis and Agudo, Isaac (eds.) (2013):
Revocation & Non-Repudiation: When the first destroys the latter.
In: LNCS, In: Public Key Infrastructures, Services and Applications - EuroPKI 2013, Springer Berlin Heidelberg, RHUL, Egham, UK, pp. 31-46, ISBN 978-3-642-53996-1,
DOI: 10.1007/978-3-642-53997-8_3,
[Conference or Workshop Item]

Hülsing, Andreas and Braun, Johannes (2013):
Langzeitsichere Signaturen durch den Einsatz hashbasierter Signaturverfahren.
In: Informationssicherheit stärken - Vertrauen in die Zukunft schaffen. Tagungsband zum 13. Deutschen IT-Sicherheitskongress, SecuMedia Verlag, Bonn, pp. 565-576, ISBN 978-3-922746-95-9,
[Conference or Workshop Item]

Braun, Johannes and Horsch, Moritz and Hülsing, Andreas (2013):
Effiziente Umsetzung des Kettenmodells unter Verwendung vorwärtssicherer Signaturverfahren.
In: Informationssicherheit stärken - Vertrauen in die Zukunft schaffen. Tagungsband zum 13. Deutschen IT-Sicherheitskongress, SecuMedia Verlag, Bonn, pp. 347-359, ISBN 978-3-922746-95-9,
[Conference or Workshop Item]

Baumöller, Claas and Schaaf, Joachim and Horsch, Moritz and Wiesmaier, Alexander and Braun, Johannes (2013):
EP 2600270 Identification element-based authentication and identification with decentralised service use.
[Standards, patents]

Braun, Johannes and Wiesmaier, Alexander and Buchmann, Johannes Sprague, Ralph H. (ed.) (2013):
On the Security of Encrypted Secret Sharing.
In: 46th Hawaii International Conference on Systems Science (HICSS-46), IEEE Computer Society, Grand Wailea, Maui, Hawaii, pp. 4966-4976, ISBN 978-0-7695-4892-0,
DOI: 10.1109/HICSS.2013.426,
[Conference or Workshop Item]

Braun, Johannes and Rynkowski, Gregor (2013):
The Potential of an Individualized Set of trusted CAs: Defending against CA Failures in the Web PKI.
In: Social Computing (SocialCom) - PASSAT2013, Washington D.C., USA, pp. 600-605, DOI: 10.1109/SocialCom.2013.90,
[Conference or Workshop Item]

2012

Braun, Johannes and Hülsing, Andreas and Wiesmaier, Alexander (2012):
Schlanke Infrastrukturen für den digitalen Rechtsverkehr - Vorwärtssichere Verfahren für qualifizierte elektronische Signaturen.
[Report]

Horsch, Moritz and Braun, Johannes and Wiesmaier, Alexander (2012):
Decoupling Authentication from the Usage of Services.
[Report]

Braun, Johannes and Horsch, Moritz and Wiesmaier, Alexander Ryan, Mark and Smyth, Ben and Wang, Guilin (eds.) (2012):
iPIN and mTAN for secure eID applications.
In: LNCS, In: 8th International Conference on Information Security Practice and Experience (ISPEC 2012), Springer, Hangzhou, China, pp. 259-276, ISBN 978-3-642-29100-5,
DOI: 10.1007/978-3-642-29101-2_18,
[Conference or Workshop Item]

Braun, Johannes and Hülsing, Andreas and Wiesmaier, Alexander and Vigil, Martín and Buchmann, Johannes De Capitani di Vimercati, Sabrina and Mitchell, Chris (eds.) (2012):
How to avoid the Breakdown of Public Key Infrastructures - Forward Secure Signatures for Certificate Authorities.
In: LNCS, In: Public Key Infrastructures, Services and Applications - EuroPKI 2012, Springer, Pisa, Italy, pp. 53-68, ISBN 978-3-642-40011-7,
[Conference or Workshop Item]

Braun, Johannes and Buchmann, Johannes Levi, Albert and Badra, Mohamad and Cesana, Matteo and Ghassemian, Mona and Jabeur, Nafaa and Klonowski, Marek and Mana, Antonio and Sargento, Susana and Zeadally, Sherali (eds.) (2012):
Perfect Confidentiality Network - A solution for information theoretically secure key agreement.
In: 5th IFIP International Conference on New Technologies, Mobility & Security (NTMS) 2012, IEEE, Istanbul, Turkey, pp. 1-5, ISBN 978-1-4673-0229-6,
DOI: 10.1109/NTMS.2012.6208676,
[Conference or Workshop Item]

Horsch, Moritz and Braun, Johannes and Wiesmaier, Alexander and Schaaf, Joachim and Baumöller, Claas (2012):
Verteilte Dienstnutzung mit dem neuen Personalausweis.
In: D-A-CH Security 2012, 25. - 26. September, [Conference or Workshop Item]

Hühnlein, Detlef and Petrautzki, Dirk and Schmölz, Johannes and Wich, Tobias and Horsch, Moritz and Wieland, Thomas and Eichholz, Jan and Wiesmaier, Alexander and Braun, Johannes and Feldmann, Florian and Potzernheim, Simon and Schwenk, Jörg and Kahlo, Christian and Kühne, Andreas and Veit, Heiko (2012):
On the design and implementation of the Open eCard App.
In: GI SICHERHEIT 2012 Sicherheit - Schutz und Zuverlässigkeit, Darmstadt, [Conference or Workshop Item]

2011

Braun, Johannes and Wiesmaier, Alexander and Klieme, Eric and Strick, Linda and Wunderlich, Wolfgang (2011):
Der elektronische Safe als vertrauenswürdiger Cloud Service.
[Report]

Braun, Johannes and Horsch, Moritz and Wiesmaier, Alexander and Hühnlein, Detlef Schartner, Peter and Taeger, Jürgen (eds.) (2011):
Mobile Authentisierung und Signatur.
In: D-A-CH Security 2011: Bestandsaufnahme, Konzepte, Anwendungen, Perspektiven, syssec Verlag, Oldenburg, pp. 32-43, ISBN 978-3-00-034960-7,
[Conference or Workshop Item]

Horsch, Moritz and Braun, Johannes and Wiesmaier, Alexander (2011):
Mobile eID application for the German identity card.
[Report]

Wiesmaier, Alexander and Horsch, Moritz and Braun, Johannes and Kiefer, Franziskus and Hühnlein, Detlef and Strenzke, Falko and Buchmann, Johannes Cheung, Bruce and Hui, Lucas Chi Kwong and Sandhu, Ravi and Wong, Duncan (eds.) (2011):
An efficient mobile PACE implementation.
In: ACM Symposium on Information, Computer and Communications Security, In: ASIA CCS '11: 6th ACM Symposium on Information, Computer and Communications Security, ACM, Hong Kong, pp. 176-185, DOI: 10.1145/1966913.1966936,
[Conference or Workshop Item]

2010

Buchmann, Johannes and Braun, Johannes and Horsch, Moritz and Hühnlein, Detlef and Kiefer, Franziskus and Strenzke, Falko and Wiesmaier, Alexander (2010):
Towards a mobile eCard Client.
In: 13. Kryptotag, Darmstadt, p. 4, [Conference or Workshop Item]

2009

Braun, Johannes (2009):
Nutzung des elektronischen Personalausweises im eCommerce.
Darmstadt, Technische Universität, [Diploma Thesis or Magisterarbeit]

2008

Siebenhaar, Melanie and Lehrig, Tim and Braun, Johannes and Görge, Thomas (2008):
Entwicklung einer SOA-basierten Webanwendung zur Buchung und Verwaltung von Segeltouren: Proprietäre Software vs. Open Source.
In: Wirtschaftsinformatik, 4 (50), 2008. pp. 325-329, DOI: 10.1365/s11576-008-0069-2,
[Article]

This list was generated on Mon Aug 3 07:37:04 2020 CEST.