Vladmodelsy095alina44 2021 ((top))

$ file vladmodelsy095alina44 vladmodelsy095alina44: ELF 64-bit LSB executable, x86‑64, dynamically linked, stripped

if (strcmp(user_input, (char *)out) == 0) puts("Correct! Here is the flag:"); else puts("Invalid code! Try again."); vladmodelsy095alina44 2021

Reverse Engineering / Crypto Points: 450 (mid‑range) Difficulty: Medium – you need to recognise a custom XOR‑based “encryption” routine and recover the key that is derived from the binary name itself. stripped if (strcmp(user_input

$ strings vladmodelsy095alina44 | head -20 /lib64/ld-linux-x86-64.so.2 GLIBC_2.2.5 ... vladmodelsy095alina44 else puts("Invalid code! Try again.")