halo.md

halo

知识点

base64和异或

解题

base64解密后得到

igq4;541R;1ikR51ibOO0

猜测base64和异或，尝试

import string

from base64 import *

b=b64decode("aWdxNDs1NDFSOzFpa1I1MWliT08w")

data=list(b)

for k in range(0,200):
    key=""
    for i in range(len(data)):
        key+=chr(ord(data[i])^k)
    print (key)