In the line:`noobda = bin(int(my_hexdata, scale))[2:].zfill(num_of_bits)`noobda being the key for the xor, we know it's using `bin` so the key consists of only 1's and 0'swe can manually bruteforce because in xor the key is used for each character so we can test for each character if 1 or 0 is more accurate.Example of what I did:```from pwn import xorres = b64decode("U1FEQEdeS1JDSEBEXlZDUEFYSG5ZQ29TVVBFRFlXRFxvUUJFTA==")```
![](https://cdn.discordapp.com/attachments/705488827837579305/718575236198432878/unknown.png)
You keep doing this until you get the flag:```xor(res, b"1000000111001111101100010100011000011")bytearray(b'batpwn{cryptography_is_beautiful_art}')```