replace getnode with machineid

Author: ezekg

README.md

@@ -40,9 +40,10 @@ KEYGEN_PUBLIC_KEY='e8601e48b69383ba520245fd07971e983d06d22c4257cfd82304601479cee
 
 The following will happen:
 
-1. The current device will be fingerprinted, using a SHA-256 digest of the
-   device's MAC address. You may want to look into alternative fingerprinting,
-   depending on your expected environment.
+1. The current device will be fingerprinted, using a SHA256-HAMC digest of the
+   device's [machineid](https://github.com/keygen-sh/py-machineid). You may
+   want to look into alternative fingerprinting, depending on your expected
+   run environment.
 1. The machine file's authenticity will be verified using Ed25519, by verifing
    its signature using the public key.
 1. The machine file will be decrypted using the license key and fingerprint

main.py

@@ -3,28 +3,19 @@
 from cryptography.hazmat.backends import default_backend
 from cryptography.exceptions import InvalidKey, InvalidTag
 from ed25519 import BadSignatureError
-from uuid import getnode as get_mac
+import machineid
 import argparse
 import ed25519
 import base64
 import json
 import sys
 import os
 
-def fingerprint():
-  """
-  fingerprint returns a hex-encoded SHA-256 digest of the current MAC address.
-  """
-  mac    = str(get_mac())
-  digest = hashes.Hash(hashes.SHA256())
-  digest.update(mac.encode())
-  return digest.finalize().hex()
-
 parser = argparse.ArgumentParser()
 
-parser.add_argument('-p', '--path',        dest='path',        required=True,         help='Path to machine file (required)')
-parser.add_argument('-l', '--license',     dest='license',     required=True,         help='License key (required)')
-parser.add_argument('-f', '--fingerprint', dest='fingerprint', default=fingerprint(), help='Machine fingerprint')
+parser.add_argument('-p', '--path', dest='path', required=True, help='Path to machine file (required)')
+parser.add_argument('-l', '--license', dest='license', required=True, help='License key (required)')
+parser.add_argument('-f', '--fingerprint', dest='fingerprint', default=machineid.hashed_id('example-app'), help='Machine fingerprint')
 
 args = parser.parse_args()
 

requirements.txt

@@ -1,4 +1,4 @@
+py-machineid
 argparse
 cryptography
 ed25519
-uuid