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Union CTF 2021: Cr0wnAir | Kalmarunionen
https://www.kalmarunionen.dk/writeups/2021/union-ctf-2021/cr0wnair/
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Writeup by: Nicolai Søborg Cr0wnAir TL;DR - bypassing a filter to generate two JWTs (RS256). Finding e and N from the two signatures and forge an arbitrary JWT …
