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no content no title no surprises public announcements currently on sabbatical but open to talk about offers for interesting positions contact data owner of this site inhaber in dieser seite marcel le fourné tech creator by trade wrote some science stood on conference stages likes solid infrastructure and behaving responsibly best contacted electronically by der beste weg der kontaktaufnahme ist der elektronische gerichtet an email marcelfourne de this address is heavily filtered the current openpgp key has the fingerprint 5d32 d293 a8d4 b94e 13cb 7242 3093 74d8 374c 3b48 never send mail to the automated filter which is sinkhole marcelfourne de occupied by in 2024 i was working at the university of paderborn from 2020 to 2023 i was working on tools and their usability for analysing software security against cryptographic side channels and supply chain security in general as a research engineer at max planck institute for security and privacy under the supervision of yasemin acar peter schwabe and gilles barthe i graduated with dr rer nat phd equivalent from university of paderborn you can find my officially released dissertation human factors in open source security at the uni paderborn library website you can also find a local copy here from 2017 to 2020 i worked at the chair for formal methods in computer science faculty of engineering university of duisburg essen from 2012 to 2014 i worked at the institute for internet security westfälische hochschule in gelsenkirchen from 2008 to 2012 i studied it security m sc ingenieur at ruhr universität bochum from 2003 to 2008 i studied informatik diplom at fh aachen codes i implement classical as well as post quantum cryptography and work on the tools like editors but also compilers and binary source code analysis i use to do so i prefer haskell over rust over others i publish some of my haskell software on hackage since 2009 and crates io since 2026 i am a debian maintainer i work on some packages in the debian haskell group since years before that and on different points of interest to me and others you may find some stuff on github or codeberg as well also part of handcrafted security and yi editor non commercial organizations publications 2025 attributing open source contributions is critical but difficult a systematic analysis of github practices and their impact on software supply chain security original publication in the same form at ndss 25 replication package 2024 you have to read 50 different rfcs that contradict each other an interview study on the experiences of implementing cryptographic standards original publication in the same form at usenix 24 replication package 2024 these results must be false a usability evaluation of constant time analysis tools original publication in the same form at usenix 24 replication package code artifacts 2023 a viewpoint on human factors in software supply chain security a research agenda original publication in the same form ieee security privacy special issue on secure software supply chain 2023 it s like flossing your teeth on the importance and challenges of reproducible builds for software supply chain security original publication in the same form ieee s p 2023 appendix 2022 committed to trust a qualitative study on security trust in open source software projects original publication in the same form ieee s p 2022 distinguished paper award 2021 they re not that hard to mitigate what cryptographic library developers think about timing attacks original publication in the same form ieee s p 2022 also presented at rwc 2022 2014 aggregation of network protocol data near its source original publication in the same form ict eurasia 2014 2013 attack test and verification systems steps towards verifiable anomaly detection original publication in the same form informatik 2013 some talks 2023 it s like flossing your teeth on the importance and challenges of reproducible builds for software supply chain security external video recording of the ieee s p 2023 talk 2022 they re not that hard to mitigate what cryptographic library developers think about timing attacks external video recording of the ieee s p 2022 talk 2020 side channels in cryptographic software the haskell case 2018 can verification of cryptographic libraries be liberated from the von neumann style