南京邮电大学网络攻防训练平台-逆向-Py交易

import base64
def decode(message):
	message=base64.b64decode(message)
	b=''
	for i in message:
		i=ord(i)-16
		b+=chr(i^32)
	print b

correct = 'XlNkVmtUI1MgXWBZXCFeKY+AaXNt'
decode(correct)