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@Article { 2022-henze-tii-prada,
   title = {Complying with Data Handling Requirements in Cloud Storage Systems},
   journal = {IEEE Transactions on Cloud Computing},
   year = {2022},
   month = {9},
   volume = {10},
   number = {3},
   pages = {1661-1674},
   abstract = {In past years, cloud storage systems saw an enormous rise in usage. However, despite their popularity and importance as underlying infrastructure for more complex cloud services, today’s cloud storage systems do not account for compliance with regulatory, organizational, or contractual data handling requirements by design. Since legislation increasingly responds to rising data protection and privacy concerns, complying with data handling requirements becomes a crucial property for cloud storage systems. We present Prada , a practical approach to account for compliance with data handling requirements in key-value based cloud storage systems. To achieve this goal, Prada introduces a transparent data handling layer, which empowers clients to request specific data handling requirements and enables operators of cloud storage systems to comply with them. We implement Prada on top of the distributed database Cassandra and show in our evaluation that complying with data handling requirements in cloud storage systems is practical in real-world cloud deployments as used for microblogging, data sharing in the Internet of Things, and distributed email storage.},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2022/2022-henze-tii-prada.pdf},
   misc2 = {Online},
   language = {en},
   ISSN = {2168-7161},
   DOI = {10.1109/TCC.2020.3000336},
   reviewed = {1},
   author = {Henze, Martin and Matzutt, Roman and Hiller, Jens and M{\"u}hmer, Erik and Ziegeldorf, Jan Henrik and van der Giet, Johannes and Wehrle, Klaus}
}

@Inproceedings { 2018-ziegeldorf-shield,
   title = {SHIELD: A Framework for Efficient and Secure Machine Learning Classification in Constrained Environments},
   year = {2018},
   month = {12},
   pages = {1-15},
   tags = {iop,mynedata},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2018/2018-ziegeldorf-acsac-shield.pdf},
   publisher = {ACM},
   address = {New York, NY, USA},
   booktitle = {Proceedings of the 34rd Annual Computer Security Applications Conference},
   event_place = {San Juan, Puerto Rico, USA},
   event_name = {The 34rd Annual Computer Security Applications Conference (ACSAC 2018)},
   event_date = {2018-12-03 - 2018-12-07},
   language = {English},
   DOI = {10.1145/3274694.3274716},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Metzke, Jan and Wehrle, Klaus}
}

@Inproceedings { 2018-matzutt-bitcoin-content-countermeasures,
   title = {Thwarting Unwanted Blockchain Content Insertion},
   year = {2018},
   month = {4},
   day = {17},
   pages = {364-370},
   abstract = {Since the introduction of Bitcoin in 2008, blockchain systems have seen an enormous increase in adoption. By providing a persistent, distributed, and append-only ledger, blockchains enable numerous applications such as distributed consensus, robustness against equivocation, and smart contracts. However, recent studies show that blockchain systems such as Bitcoin can be (mis)used to store arbitrary content. This has already been used to store arguably objectionable content on Bitcoin's blockchain. Already single instances of clearly objectionable or even illegal content can put the whole system at risk by making its node operators culpable. To overcome this imminent risk, we survey and discuss the design space of countermeasures against the insertion of such objectionable content. Our analysis shows a wide spectrum of potential countermeasures, which are often combinable for increased efficiency. First, we investigate special-purpose content detectors as an ad hoc mitigation. As they turn out to be easily evadable, we also investigate content-agnostic countermeasures. We find that mandatory minimum fees as well as mitigation of transaction manipulability via identifier commitments significantly raise the bar for inserting harmful content into a blockchain.},
   keywords = {Bitcoin,blockchain,security,objectionable content,countermeasure},
   tags = {mynedata,iop},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2018/2018-matzutt-blockchain-contents-countermeasures.pdf},
   web_url = {https://ieeexplore.ieee.org/document/8360355},
   publisher = {IEEE},
   booktitle = {Proceedings of the First IEEE Workshop on Blockchain Technologies and Applications (BTA), co-located with the IEEE International Conference on Cloud Engineering 2018 (IC2E 2018)},
   event_place = {Orlando, Florida, USA},
   event_name = {First IEEE Workshop on Blockchain Technologies and Applications (BTA)},
   event_date = {2018-04-17},
   language = {English},
   ISBN = {978-1-5386-5008-0},
   DOI = {10.1109/IC2E.2018.00070},
   reviewed = {1},
   author = {Matzutt, Roman and Henze, Martin and Ziegeldorf, Jan Henrik and Hiller, Jens and Wehrle, Klaus}
}

@Article { 2016-fgcs-ziegeldorf-bitcoin,
   title = {Secure and anonymous decentralized Bitcoin mixing},
   journal = {Future Generation Computer Systems},
   year = {2018},
   month = {3},
   volume = {80},
   pages = {448-466},
   keywords = {Pseudonymity, anonymity, and untraceability},
   tags = {rfc},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2018/2018-ziegeldorf-fgcs-bitcoin.pdf},
   misc2 = {Online},
   publisher = {Elsevier},
   language = {en},
   ISSN = {0167-739X},
   DOI = {10.1016/j.future.2016.05.018},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Matzutt, Roman and Henze, Martin and Grossmann, Fred and Wehrle, Klaus}
}

@Inproceedings { 2018-matzutt-bitcoin-content,
   title = {A Quantitative Analysis of the Impact of Arbitrary Blockchain Content on Bitcoin},
   year = {2018},
   month = {2},
   day = {26},
   abstract = {Blockchains primarily enable credible accounting of digital events, e.g., money transfers in cryptocurrencies. However, beyond this original purpose, blockchains also irrevocably record arbitrary data, ranging from short messages to pictures. This does not come without risk for users as each participant has to locally replicate the complete blockchain, particularly including potentially harmful content. We provide the first systematic analysis of the benefits and threats of arbitrary blockchain content. Our analysis shows that certain content, e.g., illegal pornography, can render the mere possession of a blockchain illegal. Based on these insights, we conduct a thorough quantitative and qualitative analysis of unintended content on Bitcoin's blockchain. Although most data originates from benign extensions to Bitcoin's protocol, our analysis reveals more than 1600 files on the blockchain, over 99\% of which are texts or images. Among these files there is clearly objectionable content such as links to child pornography, which is distributed to all Bitcoin participants. With our analysis, we thus highlight the importance for future blockchain designs to address the possibility of unintended data insertion and protect blockchain users accordingly.},
   tags = {mynedata},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2018/2018_matzutt_bitcoin-contents_preproceedings-version.pdf},
   web_url_date = {2018-01-07},
   misc2 = {Online},
   publisher = {Springer},
   booktitle = {Proceedings of the 22nd International Conference on Financial Cryptography and Data Security (FC), Nieuwpoort, Cura\c{c}ao},
   event_place = {Nieuwpoort, Cura\c{c}ao},
   event_name = {Financial Cryptography and Data Security 2018},
   language = {en},
   DOI = {10.1007/978-3-662-58387-6_23},
   reviewed = {1},
   author = {Matzutt, Roman and Hiller, Jens and Henze, Martin and Ziegeldorf, Jan Henrik and M{\"u}llmann, Dirk and Hohlfeld, Oliver and Wehrle, Klaus}
}

@Incollection { 2017-cps-henze-network,
   title = {Network Security and Privacy for Cyber-Physical Systems},
   year = {2017},
   month = {11},
   day = {13},
   pages = {25-56},
   tags = {sensorcloud,ipacs},
   editor = {Song, Houbing and Fink, Glenn A. and Jeschke, Sabina},
   publisher = {Wiley-IEEE Press},
   edition = {First},
   chapter = {2},
   booktitle = {Security and Privacy in Cyber-Physical Systems: Foundations, Principles and Applications},
   language = {en},
   ISBN = {978-1-119-22604-8},
   DOI = {10.1002/9781119226079.ch2},
   reviewed = {1},
   author = {Henze, Martin and Hiller, Jens and Hummen, Ren{\'e} and Matzutt, Roman and Wehrle, Klaus and Ziegeldorf, Jan Henrik}
}

@Inproceedings { 2017-henze-mobiquitous-comparison,
   title = {Privacy-preserving Comparison of Cloud Exposure Induced by Mobile Apps},
   year = {2017},
   month = {11},
   day = {7},
   pages = {543-544},
   tags = {trinics},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-henze-mobiquitous-comparison.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous) - Poster Session, Melbourne, VIC, Australia},
   language = {en},
   ISBN = {978-1-4503-5368-7},
   DOI = {10.1145/3144457.3144511},
   reviewed = {1},
   author = {Henze, Martin and Inaba, Ritsuma and Fink, Ina Berenice and Ziegeldorf, Jan Henrik}
}

@Inproceedings { 2017-henze-mobiquitous-cloudanalyzer,
   title = {CloudAnalyzer: Uncovering the Cloud Usage of Mobile Apps},
   year = {2017},
   month = {11},
   day = {7},
   pages = {262-271},
   abstract = {Developers of smartphone apps increasingly rely on cloud services for ready-made functionalities, e.g., to track app usage, to store data, or to integrate social networks. At the same time, mobile apps have access to various private information, ranging from users' contact lists to their precise locations. As a result, app deployment models and data flows have become too complex and entangled for users to understand. We present CloudAnalyzer, a transparency technology that reveals the cloud usage of smartphone apps and hence provides users with the means to reclaim informational self-determination. We apply CloudAnalyzer to study the cloud exposure of 29 volunteers over the course of 19 days. In addition, we analyze the cloud usage of the 5000 most accessed mobile websites as well as 500 popular apps from five different countries. Our results reveal an excessive exposure to cloud services: 90 \% of apps use cloud services and 36 \% of apps used by volunteers solely communicate with cloud services. Given the information provided by CloudAnalyzer, users can critically review the cloud usage of their apps.},
   keywords = {Privacy; Smartphones; Cloud Computing; Traffic Analysis},
   tags = {trinics},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-henze-mobiquitous-cloudanalyzer.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous '17), November 7-10, 2017, Melbourne, VIC, Australia},
   event_place = {Melbourne, VIC, Australia},
   event_date = {November 7-10, 2017},
   language = {en},
   ISBN = {978-1-4503-5368-7},
   DOI = {10.1145/3144457.3144471},
   reviewed = {1},
   author = {Henze, Martin and Pennekamp, Jan and Hellmanns, David and M{\"u}hmer, Erik and Ziegeldorf, Jan Henrik and Drichel, Arthur and Wehrle, Klaus}
}

@Article { 2017-ziegeldorf-bmcmedgenomics-bloom,
   title = {BLOOM: BLoom filter based Oblivious Outsourced Matchings},
   journal = {BMC Medical Genomics},
   year = {2017},
   month = {7},
   day = {26},
   volume = {10},
   number = {Suppl 2},
   pages = {29-42},
   abstract = {Whole genome sequencing has become fast, accurate, and cheap, paving the way towards the large-scale collection and processing of human genome data. Unfortunately, this dawning genome era does not only promise tremendous advances in biomedical research but also causes unprecedented privacy risks for the many. Handling storage and processing of large genome datasets through cloud services greatly aggravates these concerns. Current research efforts thus investigate the use of strong cryptographic methods and protocols to implement privacy-preserving genomic computations. We propose FHE-Bloom and PHE-Bloom, two efficient approaches for genetic disease testing using homomorphically encrypted Bloom filters. Both approaches allow the data owner to securely outsource storage and computation to an untrusted cloud. FHE-Bloom is fully secure in the semi-honest model while PHE-Bloom slightly relaxes security guarantees in a trade-off for highly improved performance. We implement and evaluate both approaches on a large dataset of up to 50 patient genomes each with up to 1000000 variations (single nucleotide polymorphisms). For both implementations, overheads scale linearly in the number of patients and variations, while PHE-Bloom is faster by at least three orders of magnitude. For example, testing disease susceptibility of 50 patients with 100000 variations requires only a total of 308.31 s (\(\sigma\)=8.73 s) with our first approach and a mere 0.07 s (\(\sigma\)=0.00 s) with the second. We additionally discuss security guarantees of both approaches and their limitations as well as possible extensions towards more complex query types, e.g., fuzzy or range queries. Both approaches handle practical problem sizes efficiently and are easily parallelized to scale with the elastic resources available in the cloud. The fully homomorphic scheme, FHE-Bloom, realizes a comprehensive outsourcing to the cloud, while the partially homomorphic scheme, PHE-Bloom, trades a slight relaxation of security guarantees against performance improvements by at least three orders of magnitude.},
   note = {Proceedings of the 5th iDASH Privacy and Security Workshop 2016},
   keywords = {Secure outsourcing; Homomorphic encryption; Bloom filters},
   tags = {sscilops; mynedata; rfc},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-ziegeldorf-bmcmedgenomics-bloom.pdf},
   misc2 = {Online},
   publisher = {BioMed Central},
   event_place = {Chicago, IL, USA},
   event_date = {November 11, 2016},
   language = {en},
   ISSN = {1755-8794},
   DOI = {10.1186/s12920-017-0277-y},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Pennekamp, Jan and Hellmanns, David and Schwinger, Felix and Kunze, Ike and Henze, Martin and Hiller, Jens and Matzutt, Roman and Wehrle, Klaus}
}

@Inproceedings { 2017-zimmermann-secon,
   title = {Resource and Execution Control for Mobile Offloadee Devices},
   year = {2017},
   month = {6},
   day = {12},
   tags = {maki},
   publisher = {IEEE},
   booktitle = {14th IEEE International Conference on Sensing, Communication, and Networking (SECON 2017), San Diego, USA},
   event_place = {San Diego, USA},
   event_name = {14th IEEE International Conference on Sensing, Communication, and Networking (SECON 2017)},
   event_date = {12.06.2017 - 14.06.2017},
   language = {en},
   ISBN = {978-1-5090-6599-8},
   DOI = {10.1109/SAHCN.2017.7964939},
   reviewed = {1},
   author = {Zimmermann, Torsten and Wirtz, Hanno and Ziegeldorf, Jan Henrik and Steinhaus, Christian and Wehrle, Klaus}
}

@Inproceedings { 2017-henze-ic2e-prada,
   title = {Practical Data Compliance for Cloud Storage},
   year = {2017},
   month = {4},
   day = {4},
   pages = {252-258},
   tags = {ssiclops, ipacs},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-henze-ic2e-prada.pdf},
   misc2 = {Online},
   publisher = {IEEE},
   booktitle = {Proceedings of the 2017 IEEE International Conference on Cloud Engineering (IC2E 2017), Vancouver, BC, Canada},
   language = {en},
   ISBN = {978-1-5090-5817-4},
   DOI = {10.1109/IC2E.2017.32},
   reviewed = {1},
   author = {Henze, Martin and Matzutt, Roman and Hiller, Jens and M{\"u}hmer, Erik and Ziegeldorf, Jan Henrik and van der Giet, Johannes and Wehrle, Klaus}
}

@Inproceedings { 2017-ziegeldorf-codaspy-priward,
   title = {Privacy-Preserving HMM Forward Computation},
   year = {2017},
   month = {3},
   day = {22},
   pages = {83-94},
   tags = {mynedata},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-ziegeldorf-codaspy-priward.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {Proceedings of the 7th ACM Conference on Data and Application Security and Privacy (CODASPY 2017), Scottsdale, AZ, USA},
   language = {en},
   ISBN = {978-1-4503-4523-1},
   DOI = {10.1145/3029806.3029816},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Metzke, Jan and R{\"u}th, Jan and Henze, Martin and Wehrle, Klaus}
}

@Inproceedings { 2017-ziegeldorf-wons-tracemixer,
   title = {TraceMixer: Privacy-Preserving Crowd-Sensing sans Trusted Third Party},
   year = {2017},
   month = {2},
   day = {21},
   pages = {17-24},
   tags = {mynedata},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-ziegeldorf-wons-tracemixer.pdf},
   misc2 = {Online},
   publisher = {IEEE},
   booktitle = {Proceedings of the 2017 13th Annual Conference on Wireless On-demand Network Systems and Services (WONS), Jackson Hole, WY, USA},
   language = {en},
   ISBN = {978-3-901882-88-3},
   DOI = {10.1109/WONS.2017.7888771},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Henze, Martin and Bavendiek, Jens and Wehrle, Klaus}
}

@Inproceedings { 2017-matzutt-mynedata,
   title = {myneData: Towards a Trusted and User-controlled Ecosystem for Sharing Personal Data},
   year = {2017},
   pages = {1073-1084},
   abstract = {Personal user data is collected and processed at large scale by a handful of big providers of Internet services. This is detrimental to users, who often do not understand the privacy implications of this data collection, as well as to small parties interested in gaining insights from this data pool, e.g., research groups or small and middle-sized enterprises. To remedy this situation, we propose a transparent and user-controlled data market in which users can directly and consensually share their personal data with interested parties for monetary compensation. We define a simple model for such an ecosystem and identify pressing challenges arising within this model with respect to the user and data processor demands, legal obligations, and technological limits. We propose myneData as a conceptual architecture for a trusted online platform to overcome these challenges. Our work provides an initial investigation of the resulting myneData ecosystem as a foundation to subsequently realize our envisioned data market via the myneData platform.},
   note = {Presentation slides are in German},
   keywords = {Personal User Data, Personal Information Management, Data Protection Laws, Privacy Enhancing Technologies, Platform Design, Profiling},
   tags = {mynedata_show},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2017/2017-matzutt-informatik-mynedata.pdf},
   web_url = {https://www.comsys.rwth-aachen.de/fileadmin/misc/mynedata/talks/2017-matzutt-informatik-mynedata-presentation.pdf},
   web_url_date = {Presentation slides},
   editor = {Eibl, Maximilian and Gaedke, Martin},
   publisher = {Gesellschaft f{\"u}r Informatik, Bonn},
   booktitle = {INFORMATIK 2017},
   event_place = {Chemnitz},
   event_name = {INFORMATIK 2017},
   event_date = {2017-09-28},
   language = {English},
   ISBN = {978-3-88579-669-5},
   ISSN = {1617-5468},
   DOI = {10.18420/in2017_109},
   reviewed = {1},
   author = {Matzutt, Roman and M{\"u}llmann, Dirk and Zeissig, Eva-Maria and Horst, Christiane and Kasugai, Kai and Lidynia, Sean and Wieninger, Simon and Ziegeldorf, Jan Henrik and Gudergan, Gerhard and Spiecker gen. D{\"o}hmann, Indra and Wehrle, Klaus and Ziefle, Martina}
}

@Phdthesis { 2017-ziegeldorf-phdthesis,
   title = {Designing Digital Services with Cryptographic Guarantees for Data Security and Privacy},
   year = {2017},
   school = {RWTH Aachen University},
   author = {Ziegeldorf, Jan Henrik}
}

@Inproceedings { 2016-henze-wpes-cppl,
   title = {CPPL: Compact Privacy Policy Language},
   year = {2016},
   month = {10},
   day = {24},
   pages = {99-110},
   tags = {ssiclops},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2016/2016-henze-wpes-cppl.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {Proceedings of the 15th Workshop on Privacy in the Electronic Society (WPES), co-located with the 23rd ACM Conference on Computer and Communications Security (CCS), Vienna, Austria},
   language = {en},
   ISBN = {978-1-4503-4569-9},
   DOI = {10.1145/2994620.2994627},
   reviewed = {1},
   author = {Henze, Martin and Hiller, Jens and Schmerling, Sascha and Ziegeldorf, Jan Henrik and Wehrle, Klaus}
}

@Inproceedings { 2016-matzutt-ccs-bitcoin,
   title = {POSTER: I Don't Want That Content! On the Risks of Exploiting Bitcoin's Blockchain as a Content Store},
   year = {2016},
   month = {10},
   day = {24},
   pages = {1769-1771},
   tags = {mynedata},
   url = {/fileadmin/papers/2016/2016-matzutt-ccs-blockchaincontent.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {Proceedings of the 23rd ACM Conference on Computer and Communications Security (CCS), Vienna, Austria},
   language = {en},
   ISBN = {978-1-4503-4139-4},
   DOI = {10.1145/2976749.2989059},
   reviewed = {1},
   author = {Matzutt, Roman and Hohlfeld, Oliver and Henze, Martin and Rawiel, Robin and Ziegeldorf, Jan Henrik and Wehrle, Klaus}
}

@Inproceedings { 2015-ziegeldorf-cans-boma,
   title = {Bandwidth-optimized Secure Two-Party Computation of Minima},
   year = {2015},
   month = {12},
   day = {8},
   volume = {9476},
   pages = {197-213},
   url = {/fileadmin/papers/2015/2015-ziegeldorf-cans-boma.pdf},
   misc2 = {Online},
   publisher = {Springer},
   series = {Lecture Notes in Computer Science},
   booktitle = {14th International Conference on Cryptology and Network Security (CANS 2015), Marrakesh, Morocco},
   language = {en},
   ISBN = {978-3-319-26822-4},
   DOI = {10.1007/978-3-319-26823-1_14},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Hiller, Jens and Henze, Martin and Wirtz, Hanno and Wehrle, Klaus}
}

@Inproceedings { 2015-ziegeldorf-dpm-comparison,
   title = {Comparison-based Privacy: Nudging Privacy in Social Media (Position Paper)},
   year = {2015},
   month = {9},
   day = {22},
   volume = {9481},
   pages = {226-234},
   url = {fileadmin/papers/2015/2015-ziegeldorf-dpm-cbp.pdf},
   misc2 = {Online},
   publisher = {Springer},
   series = {Lecture Notes in Computer Science},
   booktitle = {The 10th DPM International Workshop on Data Privacy Management, Vienna, Austria},
   language = {en},
   ISBN = {978-3-319-29882-5},
   DOI = {10.1007/978-3-319-29883-2_15},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Henze, Martin and Hummen, Ren{\'e} and Wehrle, Klaus}
}

@Inproceedings { 2015-ahfe-kowalewski-facebook,
   title = {Like us on Facebook! - Analyzing user preferences regarding privacy settings in Germany},
   journal = {Procedia Manufacturing},
   year = {2015},
   month = {7},
   volume = {3},
   pages = {815--822},
   publisher = {Elsevier},
   booktitle = {The 6th International Conference on Applied Humand Factors and Ergonomics (AHFE 2015), Las Vegas, NV, USA},
   language = {en},
   ISSN = {2351-9789},
   DOI = {10.1016/j.promfg.2015.07.336},
   reviewed = {1},
   author = {Kowalewski, Sylvia and Ziefle, Martina and Ziegeldorf, Jan Henrik and Wehrle, Klaus}
}

@Inproceedings { 2015-ziegeldorf-iwpe-comparison,
   title = {Choose Wisely: A Comparison of Secure Two-Party Computation Frameworks},
   year = {2015},
   month = {5},
   day = {21},
   pages = {198-205},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2015/2015-ziegeldorf-iwpe-choose.pdf},
   misc2 = {Online},
   publisher = {IEEE},
   booktitle = {2015 International Workshop on Privacy Engineering (IWPE'15), part of 2015 IEEE Security and Privacy Workshops (SPW 2015), San Jose, CA, USA},
   language = {en},
   DOI = {10.1109/SPW.2015.9},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Metzke, Jan and Henze, Martin and Wehrle, Klaus}
}

@Inproceedings { 2014-ziegeldorf-codaspy-coinparty,
   title = {CoinParty: Secure Multi-Party Mixing of Bitcoins},
   year = {2015},
   month = {3},
   day = {2},
   tags = {rfc},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2015/2015-ziegeldorf-codaspy-coinparty.pdf},
   misc2 = {Online},
   publisher = {ACM},
   booktitle = {The Fifth ACM Conference on Data and Application Security and Privacy (CODASPY 2015), San Antonio, TX, USA},
   event_place = {San Antonio, TX, USA},
   event_name = {The Fifth ACM Conference on Data and Application Security and Privacy (CODASPY 2015)},
   language = {en},
   ISBN = {978-1-4503-3191-3},
   DOI = {10.1145/2699026.2699100},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Grossmann, Fred and Henze, Martin and Inden, Nicolas and Wehrle, Klaus}
}

@Poster { 2014-wisec-ziegeldorf-ipin,
   title = {POSTER: Privacy-preserving Indoor Localization},
   year = {2014},
   month = {7},
   day = {23},
   tags = {rfc},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2014/2014-ziegeldorf-poster-wisec.pdf},
   organization = {7th ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec '14) (Poster)},
   language = {en},
   DOI = {10.13140/2.1.2847.4886},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Viol, Nicolai and Henze, Martin and Wehrle, Klaus}
}

@Inproceedings { 2013-icnp-hummen-tailoring,
   title = {Tailoring End-to-End IP Security Protocols to the Internet of Things},
   year = {2013},
   month = {10},
   day = {7},
   pages = {1-10},
   tags = {iotsec},
   url = {https://www.comsys.rwth-aachen.de/fileadmin/papers/2013/2013-hummen-tailoring.pdf},
   misc2 = {Online},
   publisher = {IEEE},
   booktitle = {In Proceedings of the 21st IEEE International Conference on Network Protocols (ICNP 2013), G{\"o}ttingen, Germany},
   event_place = {G{\"o}ttingen, Germany},
   event_name = {21st IEEE International Conference on Network Protocols (ICNP 2013)},
   event_date = {7-10 Oct. 2013},
   language = {en},
   ISBN = {978-1-4799-1270-4},
   DOI = {10.1109/ICNP.2013.6733571},
   reviewed = {1},
   author = {Hummen, Ren{\'e} and Wirtz, Hanno and Ziegeldorf, Jan Henrik and Hiller, Jens and Wehrle, Klaus}
}

@Article { 2013-scn-ziegeldorf-iot-privacy,
   title = {Privacy in the Internet of Things: Threats and Challenges},
   journal = {Security and Communication Networks - Special Issue on 'Security in a Completely Interconnected World'},
   year = {2013},
   month = {6},
   day = {10},
   url = {http://www.comsys.rwth-aachen.de/fileadmin/papers/2013/2013-ziegeldorf-scn-privacy-in-the-iot.pdf},
   misc2 = {Online},
   publisher = {Wiley},
   language = {en},
   DOI = {10.1002/sec.795},
   reviewed = {1},
   author = {Ziegeldorf, Jan Henrik and Garcia-Morchon, Oscar and Wehrle, Klaus}
}

@Inproceedings { 2013-hummen-towards,
   title = {Towards Viable Certificate-based Authentication for the Web of Things},
   year = {2013},
   month = {4},
   day = {19},
   tags = {iotsec},
   url = {fileadmin/papers/2013/2013-hummen-towards.pdf},
   publisher = {ACM},
   booktitle = {Proceedings of the 2nd ACM Workshop on Hot Topics on Wireless Network Security and Privacy (HotWiSec '13)},
   event_place = {Budapest, Hungary},
   event_name = {2nd ACM Workshop on Hot Topics on Wireless Network Security and Privacy},
   language = {en},
   ISBN = {978-1-4503-2003-0},
   DOI = {10.1145/2463183.2463193},
   reviewed = {1},
   author = {Hummen, Ren{\'e} and Ziegeldorf, Jan Henrik and Shafagh, Hossein and Raza, Shahid and Wehrle, Klaus}
}

@Inproceedings { 2013-wisec-garcia-securing,
   title = {Securing the IP-based Internet of Things with HIP and DTLS},
   year = {2013},
   month = {4},
   pages = {119--124},
   publisher = {ACM},
   booktitle = {Proceedings of the 6th ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec '13) (short paper)},
   ISBN = {978-1-4503-1998-0},
   DOI = {10.1145/2462096.2462117},
   reviewed = {1},
   author = {Garcia-Morchon, Oscar and Keoh, Sye Loong and Kumar, Sandeep S. and Moreno-Sanchez, Pedro and Vidal-Meca, Francisco and Ziegeldorf, Jan Henrik}
}

@Inproceedings { 2013-pitsac-vidalmeca-hip,
   title = {HIP security architecture for the IP-based Internet of Things},
   year = {2013},
   month = {3},
   day = {25},
   pages = {1331 - 1336},
   abstract = {The IP-based Internet of Things refers to the
pervasive interactions of smart objects and people enabling
new applications by means of IP protocols. An application
scenario is a Smart City in which the city infrastructure,
cars, and people exchange information to enable new services.
IP protocols, such as IPv6, TCP and HTTP will be further
complemented by IPv6 over Low powerWireless Personal Area
Networks and Constrained Application Protocol currently in
development in IETF. Security and privacy are a must for
the IP-based IoTs in order to ensure its acceptance. However,
mobility, limited bandwidth, and resource-constrained devices
pose new challenges and require for a sound and efficient
security architecture. In particular, dynamic association of
mobile smart objects and the management of keys in large-scale
networks remain an open challenge. In this context, we propose
a flexible security architecture based on the Host Identity
Protocol and Multimedia Internet KEYing protocols allowing
for secure network association and key management. HIP -
based on asymmetric-key cryptography - ensures unambiguous
thing identification, mobility support, as well as a lightweight
and secure method for network association. In our solution,
HIP is extended with MIKEY capabilities to provide enhanced
key management using polynomials, which allow to generate
pairwise keys with any node based on its identity. This
combination of protocols and crypto-algorithms ensures both
strong security and very good performance as shown by our
implementation and presents clear advantages compared with
other alternatives.},
   keywords = {Internet of Things; Security; Network Access; Key Management},
   misc2 = {Online},
   publisher = {IEEE},
   booktitle = {Proceedings of the 27th International Conference on Advanced Information Networking and Applications Workshops (WAINA), 2013},
   event_place = {Barcelona, Spain},
   event_date = {25.-28.03.2013},
   language = {en},
   DOI = {10.1109/WAINA.2013.158},
   reviewed = {1},
   author = {Vidal Meca, Francisco and Ziegeldorf, Jan Henrik and Garcia-Morchon, Oscar and Kumar, Sandeep S. and Keoh, Sye Loong and Moreno-Sanchez, Pedro}
}

@Inproceedings { 2012-hummen-seams,
   title = {SEAMS: A Signaling Layer for End-host-Assisted Middlebox Services},
   year = {2012},
   month = {6},
   day = {25},
   pages = {525--532},
   url = {fileadmin/papers/2012/2012-hummen-seams.pdf},
   booktitle = {Proceedings of the 11th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (IEEE TrustCom-12)},
   organization = {IEEE},
   event_place = {Liverpool, United Kingdom},
   language = {en},
   ISBN = {978-1-4673-2172-3},
   DOI = {10.1109/TrustCom.2012.250},
   reviewed = {1},
   author = {Hummen, Ren{\'e} and Ziegeldorf, Jan Henrik and Heer, Tobias and Wirtz, Hanno and Wehrle, Klaus}
}