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Home Projects Articles Photography Art About Contact


ALEXANDRE DULAUNOY

You just found the messy place of Alexandre Dulaunoy who enjoys when human are
using machines in unexpected ways. I break stuff and I do stuff.


INTERESTS

My interest primarily revolves around the elegance of computer science,
especially the concept of “simple and surprisingly effective” as described by
Edsger W. Dijkstra in EWD896. I actively apply these principles in practice
through free software crafting, information security, and information
representation.

When I want to take a break from computers, I engage in photography, attempting
to convey my photographic emotions through a photo blog and artistic works. I
also have an interest in understanding the tough realities of biology and
ecological systems, which I explore through gardening.


ACTIVITIES

My day job is located in the information security field and especially in
incident response, threat intelligence and security research.

Beside my day job, I’m also an intermittent security researcher in various
organizations. Organizing a security conference called hack.lu (it’s the 18th
edition in 2024) and lecturing in various universities about information
security (like An introduction to network forensic, system forensic, memory
forensic and malware analysis) are also part of my regular activities.

If you’re curious, you can check out a collection of my live activities on this
page or the archive of my Mastodon account.


PROJECTS

In my quest of free software crafting, I regularly release or contribute to free
software projects. My GitHub project page includes some current projects and
contributions.


FORBAN

Forban is a link-local opportunistic p2p free software. You can share files with
everyone in your proximity without Internet connectivity. The implementation is
written in Python but can be easily implemented as the protocol is minimal.


HOTP-JS

hotp-js - A JavaScript HOTP implementation (HMAC-Based One-Time Password
Algorithm) as described in RFC4226.


NETBEACON

netbeacon is a set of free software tools to send beacons over the network to
test the accuracy and the precision of your network capture framework.


PASSIVE DNS FRAMEWORK AND STANDARDS

I implemented multiple Passive DNS frameworks including pdns-qof-server and an
experimental storage backend in memory Passive DNS visualization and Passive DNS
server toolkit . I also co-designed “Passive DNS - Common Output Format” to help
the integration of different Passive DNS infrastructures.


PASSIVE SSL FRAMEWORK

In the same scope of Passive DNS, historical monitoring of X.509 certificate per
IP address is useful to better understand the current and past use of Internet
resources. Code is available in crl-monitor. I also maintain the modern ssldump
version.


CVE-SEARCH

I co-develop and co-maintain cve-search, a tool to import CVE (Common
Vulnerabilities and Exposures) and CPE (Common Platform Enumeration) into a
MongoDB to facilitate search and processing of CVEs. The main objective of the
software is to avoid doing direct and public lookup into the public CVE
database. cve-search supports multiple sources and feeds of vulnerability
database to aggregate the information about software vulnerabilities.


MISP

Being part of the core team of the MISP Project, I’m involved in the development
of the project from the early beginning and contribute on various aspects with a
wonderful team. I’m also the co-author of the various Internet-Draft for the
MISP standard format.


OTHER SOFTWARE

DomainClassifier, misp-modules, url-archiver… and some more on GitHub.


INFORMATION CLASSIFICATION, REPRESENTATION AND SHARING

While being an avid reader, I’m always interested in the topics where
information classication plays a role to support readers or writers in making
information more accessible. I did some work on machine tag usage and also
maintains a specific JSON machine tags database for information sharing like
MISP taxonomies.

© Alexandre Dulaunoy - licensed under the version 2 of the GNU General Public
License or any later version.

Twitter Github Flickr Mastodon (infosec) Mastodon (the other side) git.foo.be