Nils Fleischhacker

@cryptomaeher.bsky.social

Cryptographer working on both applied and theoretical cryptography. Currently Assistant Professor for Cryptography at Ruhr University Bochum. Opinions probably someone else's. he/him

My kids keep singing a song about the fact that the train doesn't have any brakes¹ and I seem to be the only one concerned about this serious lapse in railway safety. ___ ¹There's apparently a kids version, not to worry.

I'm looking for a job! I'm an experienced researcher in cryptography. My focus is on the transition to post-quantum cryptographic protocols and protocols related to blockains. If that sounds like someone you might want to hire or you know someone who might, let's talk!

I'm looking for a job! I'm an experienced researcher in cryptography. My focus is on the transition to post-quantum cryptographic protocols and protocols related to blockains. If that sounds like someone you might want to hire or you know someone who might, let's talk!

My time at RUB is coming to an end and I'm looking for an industry position. Primarily looking for remote or Rhine-Ruhr area positions, but will consider any exceptional offers. So if you're looking to hire a cryptographer to work on cryptographic protocols, or related areas, maybe we should talk!

My time at RUB is coming to an end and I'm looking for an industry position. Primarily looking for remote or Rhine-Ruhr area positions, but will consider any exceptional offers. So if you're looking to hire a cryptographer to work on cryptographic protocols, or related areas, maybe we should talk!

Announcing the preliminary program for Cedarcrypt — our inaugural applied cryptography summer school and conference, July 13–16, 2026 at the American University of Beirut - Mediterraneo in Paphos, Cyprus! An absolutely fantastic program awaits — check it out, register today, and share widely!

Cedarcrypt 2026 — Applied Cryptography Summer School & Conference

Join us for four days of applied cryptography in the Mediterranean. July 13–16, 2026 at AUB Mediterraneo Campus, Paphos, Cyprus.

cedarcrypt.org

I can't see the election changing anyone's mind. Trump didn't vote himself into office twice, or force congress to sit back and do nothing while he waged an illegal war that explicitly violates the constitutional limits placed on his power. The US doesn't have a Trump problem, it has a US problem.