Showing Posts For Linear Algebra
Cryptanalysis of a Quantum Public Key Encryption Scheme
I explain my cryptanalysis of a public key encryption scheme that uses a four-states quantum public key to encrypt a qubit message. This scheme was described in Zhixin Liu et al 2022 Phys. Scr. 97 045102
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The Cake is a Matrix: A CitadelCTF 2025 Challenge
In this writeup I’ll go through my thought process and solution for the challenge “The Cake is a Matrix,” which was a part of the CitadelCTF 2025 by Cryptonite. This challenge was created by goosbo.
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