下载附件用记事本打开

把这些代码放在pytho中

# encode = utf-8
# python3
# pycryptodemo 3.12.0

import Crypto.PublicKey as pk
from hashlib import md5
from functools import reduce

a = sum([len(str(i)) for i in pk.__dict__])
funcs = list(pk.__dict__.keys())
b = reduce(lambda a,b:a+b,[str(i) for i in funcs])
f = md5(b.encode()).hexdigest()
print('NSSCTF{' + f + '}')

运行就得到flag了

flag为：

NSSCTF{deb5139626c49a340e68adcb9fbb7558}

flag不对可以试试这个：

NSSCTF{11db81a49b1826a3be8fb33f8ccb496d}