Hans Heum (@Heum) header
Hans Heum (@Heum) profile picture

Norwegian particle-physicist-turned-cryptographer with a special interest in quantum computers ⚛️ Currently PQ postdoc at NTNU

Trondheim, Norway
Joined January 2009
Photo by Hans Heum (@Heum)Photo by Hans Heum (@Heum)Photo by Hans Heum (@Heum)
You should use Signal. Seriously. There are other encrypted messaging apps out there, but I don’t have as much faith in their longevity. In particular I have major concerns about the sustainability of for-profit apps in our new “AI” world.
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Thomas Vidick wrote more thought about the bug in #eprint555 on the Discord (like Yilei, he does not appear to use Twitter).
We are back to Cryptomania until further notice. #eprint555
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it's so over
Chen’s paper has a bug, independently discovered by Hongxun Weng and Thomas Vidick, that he doesn’t know how to fix. If I understand correctly, in its current form the paper doesn’t yield any improvement on prior algorithms. eprint.iacr.org/2024/555
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eprint.iacr.org/2024/583.pdf The fun continues.. Omri Shmueli makes a step towards saving the world..
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Hans Heum retweeted
Dear University staff, reducing departmental costs and saving you time is important to us. That's why we insist you use a travel booking system that overcharges us and operates less effectively for you than a basic google search.
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❓How to learn/train quantum circuits? Shallow quantum circuits are classically hard to simulate⚡️Despite extensive study, no efficient algorithm for learning/training them is known💀 In arxiv.org/abs/2401.10095, we show how to learn any shallow quantum circuit efficiently💡
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A great start to 2023 for our researchers: @Charlie_Trip, @Heum and @cryptostam will have their paper "Multi-Instance Secure Public-Key Encryption" presented at #PKC2023 in May in Atlanta...
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Together with @NorgesBank and @UiB, we are organising a Central Bank Digital Currency (CBDC) event in Bergen on 21-23 Oct. One-day conference with talks by experts from industry, government and academia, followed by a 48-hour hackathon. More info at simula-uib.com/cbdc-event-20…
Takk for imponerende oppmøte, flott vær og mange spennende arrangementer @arendalsuka! Nå vender Simula UiB neser hjemover til Bergen for å forske videre på kvantesikker krypto. #quantum
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PhD student opening! We are currently looking for an outstanding candidate for a PhD researcher position in the area of symmetric-key cryptography, to work with @caicocid. You can learn more and apply at: simula.no/about/job/phd-stud… Come and join us!