Author:
slice

Language:
C/C++

Upload:
2:32 AM 09/21/2024

Download

Platform
Unix/linux etc.

Difficulty:
2.9

Quality:
3.9

Arch:
x86-64

Description

find the flag!! flag starts with CTF_ warning: it doesnt strip '\n' from the end of your input

• Comments
• Solutions

NameOfFool on 8:32 AM 10/01/2024: SPOILERS CTF_sillycat

dev0 on 11:16 AM 10/06/2024: @NameOfFool unless you patched the binary I don't think that is correct. There is a "hash function" that needs to be reversed to reveal the key to print the correct input message. key sha1 e6f2df5e3248824c62840e71dcfe639e7da7a569

mikeyM on 10:27 PM 10/13/2024: As mentioned by dev0 hash function needs to be reverse engineered. CTF key hash sha2-256 is 76bd1ce2c417d18ab997fc6b27e6782b164ee451bf729cfea56e7dfeff2d5d6e

anon786 on 6:01 PM 10/15/2024: Use ghidra to disassemble and decompile, then observe the call and functions...

anon786 on 6:29 PM 10/15/2024: sha3-256 of the CTF key is: 7a616e031f268ca600e41ae389b7a116e9cdeaaa1ea3cf4ec136cef01631247f

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