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Public archive
Technical records and post-event analysis
Reproducible solves, failed turns, and the detail needed to learn from both.
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3 writeups
2025/nnsctf-2025/blockchain/huffameg.md
I don't understand, this just needs to return true! Hey Alexa, play "Tante Sofies sinte vise" until we've solved this challenge...
2025/nnsctf-2025/rev/breaker.md
Did you know that "breaking" a program can mean more than one thing? GDB certainly has its own idea of what that means. Unfortunately, a cat ran across my keyboard in the middle of debugging, and now everything looks like nonsense. Can you
2025/nnsctf-2025/crypto/live-laugh-love.md
Multiple unknowns and only a single equation... You are doomed!
Open record
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