DDCTF2018(╯°□°）╯︵ ┻━┻writeup

 

奉上我老哥py脚本

# -*- coding:utf-8 -*-
import re
import urllib

list1=[]
list2=[]


s = "d4e8e1f4a0f7e1f3a0e6e1f3f4a1a0d4e8e5a0e6ece1e7a0e9f3baa0c4c4c3d4c6fbb9b2b2e1e2b9b9b7b4e1b4b7e3e4b3b2b2e3e6b4b3e2b5b0b6b1b0e6e1e5e1b5fd"

print len(s)
result=re.sub(r"(?<=\w)(?=(?:\w\w)+$)"," ", s)
print result
urlencode_s="%"+result.replace(" ","%")
print urlencode_s
hex_s = "0x"+result.replace(" ","0x")
print hex_s
print hex_s[-4:8]
list_hex = []

for i in range(len(hex_s)):
	if((i+1)%4==0):
		print hex_s[(i-3):(i+1)]
		list1.append(hex_s[(i-3):(i+1)])
		print i
	else:
		print i
		continue
print list1

for i in list1:
	list2.append(int(i,16))

print list2

print 253-125
list3=[]
print len(list2)
for i in range(67):
	list3.append(chr(int(list2[i])-128))
s = "".join(list3)
print s