blob: e3f3bc8a7a1bafd900e7fc273f93b340a74ae7c8 (
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#!/bin/python
import binascii
import codecs
import hashlib
import hmac
import random
import string
import subprocess
import sys
with open('.shared_secret', 'r') as file:
ssh = file.read().strip()
ss = codecs.decode(ssh, 'hex')
chh = ''.join(random.choice('0123456789abcdef') for i in range(126))
ch = codecs.decode(chh, 'hex')
actual = subprocess.check_output(['ykchalresp', '-2', '-x', chh]).strip().decode()
expected = hmac.new(ss, ch, hashlib.sha1).hexdigest()
if actual == expected:
sys.exit(0)
else
sys.exit(1)
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