Aleksei Udovenko
Research Scientist at SnT, Interdisciplinary Centre for Security, Reliability and Trust
Luxembourg
Summary
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Rockstar🎓
Top SchoolAleksei Udovenko is a research scientist and cryptography specialist with 15 years of experience bridging academic research and applied security engineering. Based in Luxembourg and holding a PhD from the University of Luxembourg, he focuses on cryptanalysis, block cipher and S-Box design, and white-box implementations, with a track record of postdoctoral research and industry consulting. He contributes to open-source tooling for practical crypto analysis—most notably refactoring and modernizing the popular xortool XOR-cipher analyzer—and regularly sharpens his skills through CTFs and competitions. His background blends deep theoretical work with hands-on Python development and deployment practices, and he has moved projects toward better modularity and reproducible builds (poetry). Colleagues describe him as someone who turns complex algebraic insights into usable analysis tools that aid both research and real-world security assessments.
15 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy - PhD, Computer Science, Excellent, Doctor of Philosophy - PhD, Computer Science, Excellent at University of LuxembourgSpecialist, Information Security, Excellent, Specialist, Information Security, Excellent at ITMO University
Github Skills (11)
refactoring10
python10
cryptography10
cli9
command-line9
docopt9
command-line-interface9
poet8
testing8
poe8
build-system7
Programming languages (7)
Github contributions (5)
hellman/xortool
Jan 2011 - Jul 2022
A tool to analyze multi-byte xor cipher
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 reviews, 66 commits, 13 PRs in 11 years 7 months
Contributions summary:Aleksei primarily focused on refactoring and improving the core functionality of the xortool, an XOR cipher analysis tool. Their contributions included moving code into modular files like `routine.py` and `args.py`, indicating an effort to enhance code organization and maintainability. The user also made updates to key length guessing and printing and fixed several Windows-related issues. Moreover, the user has switched to using poetry for build and dependency management and released a new version.
cryptographybytecryptanalysiscipherxor
hellman/binteger
Sep 2020 - Dec 2022
Contributions:51 commits, 15 pushes, 8 tags in 2 years 2 months
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