$ cat writeup.md…
$ cat writeup.md…
spbctf
Task: 32-bit PE crackme that validates a username (scanf %s) and integer password (scanf %d); flag is admin's password. Solution: static analysis in radare2 shows validation reduces to password = hash(username) ^ 0xFF; reimplement the custom multiplicative-XOR hash for 'admin' to recover REDACTED.
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