CARL LÖNDAHL Currently I am doing consultant work in the area of security, blockchain technology and biometrics. I am was also doing independent work in the area of finance and autonomous stock trading. Until 2015, I was a Ph.D. student at Lund University, with research aimed towards (post-quantum) cryptography, computational complexity and coding theory. I successfully defended my thesis titled Some Notes on Code-Based Cryptography in February 2015. I have a background in mathematics, computer science and electronic engineering. In my spare time, I like to solve puzzles and play capture-the-flag with Snatch the Root.