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June 7, 2023 18:51
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Python3 version of `pfx2john.py` from John the Ripper
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#!/usr/bin/env python | |
# coding: utf-8 | |
""" | |
Modified for JtR by Dhiru Kholia in July, 2016 | |
Copyright (c) 2015 Will Bond <will@wbond.net> | |
Permission is hereby granted, free of charge, to any person obtaining a copy of | |
this software and associated documentation files (the "Software"), to deal in | |
the Software without restriction, including without limitation the rights to | |
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |
of the Software, and to permit persons to whom the Software is furnished to do | |
so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all | |
copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
SOFTWARE. | |
""" | |
import binascii | |
import sys | |
import shutil | |
try: | |
from asn1crypto import pkcs12 | |
except ImportError: | |
sys.stderr.write("asn1crypto is missing, run 'pip install --user asn1crypto' to install it!\n") | |
sys.exit(1) | |
import os | |
def parse_pkcs12(filename): | |
data = open(filename, "rb").read() | |
try: | |
pfx = pkcs12.Pfx.load(data) | |
except: | |
sys.stderr.write('{} is incorrect 1.\n'.format(filename)) | |
shutil.move(filename, filename.replace('certs', 'certs_deleted')) | |
return | |
try: | |
auth_safe = pfx['auth_safe'] | |
except: | |
sys.stderr.write('{} is incorrect 2.\n'.format(filename)) | |
shutil.move(filename, filename.replace('certs', 'certs_deleted')) | |
return | |
if auth_safe['content_type'].native != 'data': | |
sys.stderr.write('{} is incorrect 3.\n'.format(filename)) | |
shutil.move(filename, filename.replace('certs', 'certs_deleted')) | |
return | |
mac_data = pfx['mac_data'] | |
if mac_data: | |
mac_algo = mac_data['mac']['digest_algorithm']['algorithm'].native | |
try: | |
key_length = { | |
'sha1': 20, | |
'sha224': 28, | |
'sha256': 32, | |
'sha384': 48, | |
'sha512': 64, | |
'sha512_224': 28, | |
'sha512_256': 32, | |
}[mac_algo] | |
except: | |
sys.stderr.write(str(mac_data['mac']['digest_algorithm'])) | |
shutil.move(filename, filename.replace('certs', 'certs_deleted')) | |
sys.stderr.write("\n") | |
sys.exit() | |
salt = mac_data['mac_salt'].native | |
iterations = mac_data['iterations'].native | |
mac_algo_numeric = -1 | |
if mac_algo == "sha1": | |
mac_algo_numeric = 1 | |
elif mac_algo == "sha224": | |
mac_algo_numeric = 224 | |
elif mac_algo == "sha256": | |
mac_algo_numeric = 256 | |
elif mac_algo == "sha384": | |
mac_algo_numeric = 384 | |
elif mac_algo == "sha512": | |
mac_algo_numeric = 512 | |
else: | |
sys.stderr.write("mac_algo %s is not supported yet!\n" % mac_algo) | |
return | |
stored_hmac = mac_data['mac']['digest'].native | |
data = auth_safe['content'].contents | |
size = len(salt) | |
sys.stdout.write("%s:$pfxng$%s$%s$%s$%s$%s$%s$%s:::::%s\n" % | |
(os.path.basename(filename), mac_algo_numeric, | |
key_length, iterations, size, binascii.hexlify(salt).decode(), | |
binascii.hexlify(data).decode(), | |
binascii.hexlify(stored_hmac).decode(), filename)) | |
if __name__ == "__main__": | |
if len(sys.argv) < 2: | |
sys.stderr.write("Usage: %s <.pfx file(s)>\n" % sys.argv[0]) | |
for i in range(1, len(sys.argv)): | |
parse_pkcs12(sys.argv[i]) |
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