```#!/usr/bin/env python3
* snowcrash* [email protected]* https://github.com/snowcra5h/
from pwn import *from base64 import b64decode as decodefrom base64 import b64encode as encode
def do_xor(inp, even):    result = []    if (even):        print("[*] Got even secret")        key = [0xde, 0xad, 0xbe, 0xef, 0xc0, 0xc0, 0xda, 0xda]    else:        print("[*] Got odd secret")        key = [0xca, 0xca, 0xfe, 0xed, 0xca, 0xca, 0xf0, 0x0d]    c = 0    for i in inp:        result.append(i ^ key[c % 8])        c += 1    return bytes(result)
conn = remote("pwn64.ctf.ihack.computer", 5678)rand = conn.recvuntil(b'\n')rand_decoded = decode(rand)no_bytes = len(rand_decoded)rand_int = int.from_bytes(rand_decoded, 'big')print(f"[+] Yo we got {hex(rand_int)} {no_bytes} bytes long")result = do_xor(rand_decoded, 0 if no_bytes & 1 else 1)no_bytes = len(result)result_int = int.from_bytes(result, 'big')print(f"[+] password {hex(result_int)} is {no_bytes} bytes long")send_back = encode(result)print(f"[+] sending back: {send_back}")conn.recvuntil(b':')conn.send(send_back)conn.send(b'\n')conn.recvuntil(b':\n')flag = conn.recvuntil(b'\n').decode()print(f"[+] Flag: {flag}")```