$ cat writeup.md…
$ cat writeup.md…
DiceCTF 2026 Quals
Task: Self-decrypting onion binary with 256 layers, each requiring 2-byte key brute-force using SHA-NI derived keystream, 30-minute time limit. Solution: JIT execution with fork/COW isolation and 32 parallel workers achieving ~3500 candidates/sec.
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$sign in$ grep --similar