My name is Mathias Hall-Andersen, I am a CS student at the University of Copenhagen (“DIKU”). My primary interests are: cryptography, algebra, reverse engineering and anything which lies in the intersection of these. In my free time I play and organise CTF competitions together with the Pwnies student organisation.


Period Title Institution
2018 (fall) Exchange ETH Z├╝rich
2017 - now Master in Computer Science Copenhagen University
2017 Bachelor thesis (Linear Cryptanalysis) Technical University of Denmark
2014 - 2017 Bachelor in Computer Science Copenhagen University


Period Title Institution
2018 (summer) Internship (Security Consultant) NCC Group, New York
(Cryptography Services)
2017 (fall) - 2018 Teaching Assistant in
Practical Cryptology
Technical University of Denmark
2017 (summer) Google Summer of Code WireGuard (Linux Foundation)
2016 (fall) Instructor in Computer Systems Copenhagen University
2016 Student Assistant Deloitte CRS
2015 Java programmer Skandinaviska Enskilda Banken


I speak/write fluent Danish and English.


Platform Alias
IRC rot256@freenode
Email mathias ----[---->+<]>+.


Conferences I have attended / will be attending:

  • Crypto 2018
  • Summercon 2018
  • Real World Crypto 2018
  • 34C3 : Tuwat
  • ECSC 2017 (contestant)
  • 33C3 : Works for me
  • Defcon 24
  • 32C3 : Gated communities