mirror of
https://github.com/polhenarejos/pico-hsm.git
synced 2024-09-20 03:10:09 +00:00
481 lines
22 KiB
Python
481 lines
22 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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/*
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* This file is part of the Pico HSM distribution (https://github.com/polhenarejos/pico-hsm).
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* Copyright (c) 2022 Pol Henarejos.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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"""
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import sys
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try:
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from cvc.certificates import CVC
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from cvc.oid import oid2scheme
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from cvc.utils import scheme_rsa
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except ModuleNotFoundError:
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print('ERROR: cvc module not found! Install pycvc package.\nTry with `pip install pycvc`')
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sys.exit(-1)
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try:
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from cryptography.hazmat.primitives.asymmetric import ec
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from cryptography.hazmat.primitives.kdf.hkdf import HKDF
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from cryptography.hazmat.primitives.serialization import Encoding, PublicFormat
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from cryptography.hazmat.primitives.ciphers.aead import ChaCha20Poly1305
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from cryptography.hazmat.primitives import hashes
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except ModuleNotFoundError:
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print('ERROR: cryptography module not found! Install cryptography package.\nTry with `pip install cryptography`')
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sys.exit(-1)
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try:
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from picohsm import PicoHSM, PinType, DOPrefixes, KeyType, EncryptionMode, utils, APDUResponse, SWCodes, AES
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except ModuleNotFoundError:
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print('ERROR: picohsm module not found! Install picohsm package.\nTry with `pip install pypicohsm`')
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sys.exit(-1)
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import json
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import urllib.request
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import base64
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from binascii import hexlify, unhexlify
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import sys
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import argparse
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import os
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import platform
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from datetime import datetime
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from argparse import RawTextHelpFormatter
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pin = None
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def hexy(a):
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return [hex(i) for i in a]
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def parse_args():
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parser = argparse.ArgumentParser()
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subparser = parser.add_subparsers(title="commands", dest="command", required=True)
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parser_init = subparser.add_parser('initialize', help='Performs the first initialization of the Pico HSM.')
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parser.add_argument('--pin', help='PIN number')
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parser_init.add_argument('--so-pin', help='SO-PIN number')
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parser_init.add_argument('--silent', help='Confirms initialization silently.', action='store_true')
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parser_attestate = subparser.add_parser('attestate', help='Generates an attestation report for a private key and verifies the private key was generated in the devices or outside.')
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parser_attestate.add_argument('-k', '--key', help='The private key index', metavar='KEY_ID')
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parser_pki = subparser.add_parser('pki', help='Performs PKI operations.')
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subparser_pki = parser_pki.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_pki_init = subparser_pki.add_parser('initialize', help='Initializes the Public Key Infrastructure (PKI)')
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parser_pki_init.add_argument('--certs-dir', help='Store the PKI certificates into this directory.', default='certs')
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parser_pki_init.add_argument('--default', help='Setups the default public PKI from public Pico HSM PKI.', action='store_true')
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parser_pki_init.add_argument('--force', help='Forces the download of certificates.', action='store_true')
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parser_rtc = subparser.add_parser('datetime', help='Datetime operations with the integrated Real Time Clock (RTC).')
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subparser_rtc = parser_rtc.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_rtc_set = subparser_rtc.add_parser('set', help='Sets the current datetime.')
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parser_rtc_get = subparser_rtc.add_parser('get', help='Gets the current datetime.')
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parser_opts = subparser.add_parser('options', help='Manage extra options.', formatter_class=RawTextHelpFormatter)
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subparser_opts = parser_opts.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_opts_set = subparser_opts.add_parser('set', help='Sets option OPT.')
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parser_opts_get = subparser_opts.add_parser('get', help='Gets optiont OPT.')
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parser_opts.add_argument('opt', choices=['button', 'counter'], help='button: press-to-confirm button.\ncounter: every generated key has an internal counter.', metavar='OPT')
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parser_opts_set.add_argument('onoff', choices=['on', 'off'], help='Toggles state ON or OFF', metavar='ON/OFF', nargs='?')
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parser_secure = subparser.add_parser('secure', help='Manages security of Pico HSM.')
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subparser_secure = parser_secure.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_opts_enable = subparser_secure.add_parser('enable', help='Enables secure lock.')
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parser_opts_unlock = subparser_secure.add_parser('unlock', help='Unlocks the secure lock.')
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parser_opts_disable = subparser_secure.add_parser('disable', help='Disables secure lock.')
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parser_cipher = subparser.add_parser('cipher', help='Implements extended symmetric ciphering with new algorithms and options.\n\tIf no file input/output is specified, stdin/stdout will be used.')
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subparser_cipher = parser_cipher.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_cipher_encrypt = subparser_cipher.add_parser('encrypt', help='Performs encryption.')
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parser_cipher_decrypt = subparser_cipher.add_parser('decrypt', help='Performs decryption.')
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parser_cipher_hmac = subparser_cipher.add_parser('mac', help='Computes MAC (HMAC or CMAC).')
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parser_cipher_kdf = subparser_cipher.add_parser('kdf', help='Performs key derivation function on a secret key.')
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parser_cipher_encrypt.add_argument('--alg', choices=['CHACHAPOLY','AES-ECB','AES-CBC','AES-OFB','AES-CFB','AES-GCM','AES-CCM','AES-CTR','AES-XTS'], required=True)
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parser_cipher_decrypt.add_argument('--alg', choices=['CHACHAPOLY','AES-ECB','AES-CBC','AES-OFB','AES-CFB','AES-GCM','AES-CCM','AES-CTR','AES-XTS'], required=True)
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parser_cipher_hmac.add_argument('--alg', choices=['CMAC', 'HMAC-SHA1', 'HMAC-SHA224', 'HMAC-SHA256', 'HMAC-SHA384', 'HMAC-SHA512'], help='Selects the algorithm.', required=True)
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parser_cipher_kdf.add_argument('--alg', choices=['HKDF-SHA256', 'HKDF-SHA384', 'HKDF-SHA512', 'PBKDF2-SHA1', 'PBKDF2-SHA224', 'PBKDF2-SHA256', 'PBKDF2-SHA384', 'PBKDF2-SHA512', 'X963-SHA1', 'X963-SHA224', 'X963-SHA256', 'X963-SHA384', 'X963-SHA512'], help='Selects the algorithm.', required=True)
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parser_cipher_kdf.add_argument('--output-len', help='Specifies the output length of derived material.')
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parser_cipher_kdf.add_argument('--iteration', help='Iteration count.', required=any(['PBKDF2' in s for s in sys.argv]))
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parser_cipher.add_argument('--iv', help='Sets the IV/nonce (hex string).')
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parser_cipher.add_argument('--file-in', help='File to encrypt or decrypt.')
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parser_cipher.add_argument('--file-out', help='File to write the result.')
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parser_cipher.add_argument('--aad', help='Specifies the authentication data (it can be a string or hex string. Combine with --hex if necesary).')
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parser_cipher.add_argument('--hex', help='Parses the AAD parameter as a hex string (for binary data).', action='store_true')
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parser_cipher.add_argument('-k', '--key', help='The private key index', metavar='KEY_ID', required=all(['keygen' not in s for s in sys.argv]))
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parser_cipher.add_argument('-s', '--key-size', default=32, help='Size of the key in bytes.')
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parser_keygen = subparser.add_parser('keygen', help='Generates private keypair or secret key.')
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subparser_keygen = parser_keygen.add_subparsers(title='commands', dest='subcommand', required=True)
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parser_keygen_aes = subparser_keygen.add_parser('aes', help='Generates an AES key.')
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parser_keygen_aes.add_argument('--size', help='Specifies the size of AES key [128, 192 or 256]',choices=[128, 192, 256], default=128)
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parser_keygen_x25519 = subparser_keygen.add_parser('x25519', help='Generates a private X25519 keypair.')
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parser_keygen_x448 = subparser_keygen.add_parser('x448', help='Generates a private X448 keypair.')
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args = parser.parse_args()
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return args
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def get_pki_data(url, data=None, method='GET'):
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user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; '
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'rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7'
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method = 'GET'
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if (data is not None):
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method = 'POST'
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req = urllib.request.Request(f"https://www.picokeys.com/pico/pico-hsm/{url}/",
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method=method,
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data=data,
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headers={'User-Agent': user_agent, })
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response = urllib.request.urlopen(req)
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resp = response.read().decode('utf-8')
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j = json.loads(resp)
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return j
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def get_pki_certs(certs_dir='certs', force=False):
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certs = get_pki_data('certs')
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if (os.path.exists(certs_dir) is False):
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os.mkdir(certs_dir)
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cvcap = os.path.join(certs_dir, certs['cvca']['CHR'])
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dvcap = os.path.join(certs_dir, certs['dvca']['CHR'])
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if (os.path.exists(cvcap) is False or force is True):
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with open(cvcap, 'wb') as f:
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f.write(base64.urlsafe_b64decode(certs['cvca']['cert']))
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if (os.path.exists(dvcap) is False or force is True):
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with open(dvcap, 'wb') as f:
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f.write(base64.urlsafe_b64decode(certs['dvca']['cert']))
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print(f'All PKI certificates are stored at {certs_dir} folder')
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def pki(_, args):
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if (args.subcommand == 'initialize'):
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if (args.default is True):
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get_pki_certs(certs_dir=args.certs_dir, force=args.force)
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else:
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print('Error: no PKI is passed. Use --default to retrieve default PKI.')
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def initialize(picohsm, args):
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if (not args.silent):
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print('********************************')
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print('* PLEASE READ IT CAREFULLY *')
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print('********************************')
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print('')
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print('This tool will erase and reset your device. It will delete all '
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'private and secret keys.')
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print('Are you sure?')
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_ = input('[Press enter to confirm]')
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if (args.pin):
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try:
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picohsm.login(args.pin)
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except APDUResponse:
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pass
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pin = args.pin
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else:
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pin = '648219'
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if (args.so_pin):
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try:
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picohsm.login(args.so_pin, who=PinType.SO_PIN)
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except APDUResponse:
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pass
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so_pin = args.so_pin
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else:
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so_pin = '57621880'
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picohsm.initialize(pin=pin, sopin=so_pin)
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response = picohsm.get_contents(DOPrefixes.EE_CERTIFICATE_PREFIX, 0x00)
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cert = bytearray(response)
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Y = CVC().decode(cert).pubkey().find(0x86).data()
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print(f'Public Point: {hexlify(Y).decode()}')
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pbk = base64.urlsafe_b64encode(Y)
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data = urllib.parse.urlencode({'pubkey': pbk}).encode()
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j = get_pki_data('cvc', data=data)
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print('Device name: '+j['devname'])
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dataef = base64.urlsafe_b64decode(
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j['cvcert']) + base64.urlsafe_b64decode(j['dvcert']) + base64.urlsafe_b64decode(j['cacert'])
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picohsm.select_file(0x2f02)
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response = picohsm.put_contents(0x0000, data=dataef)
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print('Certificate uploaded successfully!')
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print('')
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print('Note that the device is initialized with a default PIN and '
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'configuration.')
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print('Now you can initialize the device as usual with your chosen PIN '
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'and configuration options.')
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def attestate(picohsm, args):
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kid = int(args.key)
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termca = picohsm.get_termca()
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devcert = termca['cv']['data']
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cert = picohsm.get_contents(0xCE, kid)
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print(hexlify(bytearray(cert)))
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print(f'Details of key {kid}:\n')
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print(f' CAR: {(CVC().decode(cert).car()).decode()}')
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print(' Public Key:')
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puboid = CVC().decode(cert).pubkey().oid()
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print(f' Scheme: {oid2scheme(puboid)}')
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chr = CVC().decode(cert).chr()
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car = CVC().decode(cert).car()
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if (scheme_rsa(puboid)):
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print(f' Modulus: {hexlify(CVC().decode(cert).pubkey().find(0x81).data()).decode()}')
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print(f' Exponent: {hexlify(CVC().decode(cert).pubkey().find(0x82).data()).decode()}')
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else:
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print(f' Public Point: {hexlify(CVC().decode(cert).pubkey().find(0x86).data()).decode()}')
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print(f' CHR: {chr.decode()}')
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print(' Key signature:')
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inret = CVC().decode(cert).verify()
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if (inret):
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print(' Status: VALID')
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print(f' This certificate is signed with private key {kid}')
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else:
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print(' Status: NOT VALID')
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print(f' This certificate is NOT signed with private key {kid}')
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print(' Cert signature:')
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print(f' Outer CAR: {CVC().decode(cert).outer_car().decode()}')
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outret = CVC().decode(cert).verify(outer=True, dica=devcert, curve=ec.SECP256R1())
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if (outret):
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print(' Status: VALID')
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print(' This certificate is signed with the device key')
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else:
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print(' Status: NOT VALID')
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print(' This certificate is NOT signed with the device key')
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if (inret is True and outret is True):
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print(f'Key {kid} is generated by device {chr.decode()}')
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else:
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print(f'Key {kid} is NOT generated by device {chr.decode()}')
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def rtc(picohsm, args):
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if (args.subcommand == 'set'):
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now = datetime.now()
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_ = picohsm.send(cla=0x80, command=0x64, p1=0x0A, data=list(now.year.to_bytes(2, 'big')) + [now.month, now.day, now.weekday(), now.hour, now.minute, now.second ])
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elif (args.subcommand == 'get'):
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response = picohsm.send(cla=0x80, command=0x64, p1=0x0A)
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dt = datetime(int.from_bytes(response[:2], 'big'), response[2], response[3], response[5], response[6], response[7])
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print(f'Current date and time is: {dt.ctime()}')
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def opts(picohsm, args):
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opt = 0x0
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if (args.opt == 'button'):
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opt = 0x1
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elif (args.opt == 'counter'):
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opt = 0x2
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current = picohsm.send(cla=0x80, command=0x64, p1=0x6)[0]
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if (args.subcommand == 'set'):
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if (args.onoff == 'on'):
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newopt = current | opt
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else:
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newopt = current & ~opt
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picohsm.send(cla=0x80, command=0x64, p1=0x6, data=[newopt])
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elif (args.subcommand == 'get'):
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print(f'Option {args.opt.upper()} is {"ON" if current & opt else "OFF"}')
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class SecureLock:
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def __init__(self, picohsm):
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self.picohsm = picohsm
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def mse(self):
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sk = ec.generate_private_key(ec.SECP256R1())
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pn = sk.public_key().public_numbers()
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self.__pb = sk.public_key().public_bytes(Encoding.X962, PublicFormat.UncompressedPoint)
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ret = self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x01, data=list(self.__pb))
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pk = ec.EllipticCurvePublicKey.from_encoded_point(ec.SECP256R1(), bytes(ret))
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shared_key = sk.exchange(ec.ECDH(), pk)
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xkdf = HKDF(
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algorithm=hashes.SHA256(),
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length=12+32,
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salt=None,
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info=self.__pb
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)
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kdf_out = xkdf.derive(shared_key)
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self.__key_enc = kdf_out[12:]
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self.__iv = kdf_out[:12]
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def encrypt_chacha(self, data):
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chacha = ChaCha20Poly1305(self.__key_enc)
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ct = chacha.encrypt(self.__iv, data, self.__pb)
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return ct
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def unlock_device(self):
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ct = self.get_skey()
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self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x03, data=list(ct))
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def _get_key_device(self):
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if (platform.system() == 'Windows' or platform.system() == 'Linux'):
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from secure_key import windows as skey
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elif (platform.system() == 'Darwin'):
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from secure_key import macos as skey
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else:
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print('ERROR: platform not supported')
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sys.exit(-1)
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return skey.get_secure_key()
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def get_skey(self):
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self.mse()
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ct = self.encrypt_chacha(self._get_key_device())
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return ct
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def enable_device_aut(self):
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ct = self.get_skey()
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self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x02, data=list(ct))
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def disable_device_aut(self):
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ct = self.get_skey()
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self.picohsm.send(cla=0x80, command=0x64, p1=0x3A, p2=0x04, p3=list(ct))
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def secure(picohsm, args):
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slck = SecureLock(picohsm)
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if (args.subcommand == 'enable'):
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slck.enable_device_aut()
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elif (args.subcommand == 'unlock'):
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slck.unlock_device()
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elif (args.subcommand == 'disable'):
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slck.disable_device_aut()
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def cipher(picohsm, args):
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if (args.file_in):
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fin = open(args.file_in, 'rb')
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else:
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fin = sys.stdin.buffer
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enc = fin.read()
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fin.close()
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iv = args.iv
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if (args.iv and args.hex):
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iv = unhexlify(iv)
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aad = args.aad
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if (args.aad and args.hex):
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aad = unhexlify(aad)
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kid = int(args.key)
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mode = EncryptionMode.ENCRYPT if args.subcommand[0] == 'e' else EncryptionMode.DECRYPT
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if (args.alg == 'CHACHAPOLY'):
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ret = picohsm.chachapoly(kid, mode, data=enc, iv=iv, aad=aad)
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elif (args.alg == 'AES-ECB'):
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ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.ECB, data=enc, iv=iv, aad=aad)
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elif (args.alg == 'AES-CBC'):
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ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CBC, data=enc, iv=iv, aad=aad)
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elif (args.alg == 'AES-OFB'):
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ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.OFB, data=enc, iv=iv, aad=aad)
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elif (args.alg == 'AES-CFB'):
|
|
ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CFB, data=enc, iv=iv, aad=aad)
|
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elif (args.alg == 'AES-GCM'):
|
|
ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.GCM, data=enc, iv=iv, aad=aad)
|
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elif (args.alg == 'AES-CCM'):
|
|
ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CCM, data=enc, iv=iv, aad=aad)
|
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elif (args.alg == 'AES-CTR'):
|
|
ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.CTR, data=enc, iv=iv, aad=aad)
|
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elif (args.alg == 'AES-XTS'):
|
|
ret = picohsm.aes(keyid=kid, mode=mode, algorithm=AES.XTS, data=enc, iv=iv, aad=aad)
|
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elif (args.alg == 'CMAC'):
|
|
ret = picohsm.cmac(keyid=kid, data=enc)
|
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elif (args.alg == 'HMAC-SHA1'):
|
|
ret = picohsm.hmac(hashes.SHA1, kid, data=enc)
|
|
elif (args.alg == 'HMAC-SHA224'):
|
|
ret = picohsm.hmac(hashes.SHA224, kid, data=enc)
|
|
elif (args.alg == 'HMAC-SHA256'):
|
|
ret = picohsm.hmac(hashes.SHA256, kid, data=enc)
|
|
elif (args.alg == 'HMAC-SHA384'):
|
|
ret = picohsm.hmac(hashes.SHA384, kid, data=enc)
|
|
elif (args.alg == 'HMAC-SHA512'):
|
|
ret = picohsm.hmac(hashes.SHA512, kid, data=enc)
|
|
elif (args.alg == 'HKDF-SHA256'):
|
|
ret = picohsm.hkdf(hashes.SHA256, kid, data=enc, salt=iv, out_len=args.output_len)
|
|
elif (args.alg == 'HKDF-SHA384'):
|
|
ret = picohsm.hkdf(hashes.SHA384, kid, data=enc, salt=iv, out_len=args.output_len)
|
|
elif (args.alg == 'HKDF-SHA512'):
|
|
ret = picohsm.hkdf(hashes.SHA512, kid, data=enc, salt=iv, out_len=args.output_len)
|
|
elif (args.alg == 'PBKDF2-SHA1'):
|
|
ret = picohsm.pbkdf2(hashes.SHA1, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
|
|
elif (args.alg == 'PBKDF2-SHA224'):
|
|
ret = picohsm.pbkdf2(hashes.SHA224, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
|
|
elif (args.alg == 'PBKDF2-SHA256'):
|
|
ret = picohsm.pbkdf2(hashes.SHA256, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
|
|
elif (args.alg == 'PBKDF2-SHA384'):
|
|
ret = picohsm.pbkdf2(hashes.SHA384, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
|
|
elif (args.alg == 'PBKDF2-SHA512'):
|
|
ret = picohsm.pbkdf2(hashes.SHA512, kid, salt=iv, iterations=args.iteration, out_len=args.output_len)
|
|
elif (args.alg == 'X963-SHA1'):
|
|
ret = picohsm.x963(hashes.SHA1, kid, data=enc, out_len=args.output_len)
|
|
elif (args.alg == 'X963-SHA224'):
|
|
ret = picohsm.x963(hashes.SHA224, kid, data=enc, out_len=args.output_len)
|
|
elif (args.alg == 'X963-SHA256'):
|
|
ret = picohsm.x963(hashes.SHA256, kid, data=enc, out_len=args.output_len)
|
|
elif (args.alg == 'X963-SHA384'):
|
|
ret = picohsm.x963(hashes.SHA384, kid, data=enc, out_len=args.output_len)
|
|
elif (args.alg == 'X963-SHA512'):
|
|
ret = picohsm.x963(hashes.SHA512, kid, data=enc, out_len=args.output_len)
|
|
|
|
if (args.file_out):
|
|
fout = open(args.file_out, 'wb')
|
|
else:
|
|
fout = sys.stdout.buffer
|
|
if (args.hex):
|
|
fout.write(hexlify(bytes(ret)))
|
|
else:
|
|
fout.write(bytes(ret))
|
|
if (args.file_out):
|
|
fout.close()
|
|
|
|
def keygen(picohsm, args):
|
|
if (args.subcommand == 'aes'):
|
|
ret = picohsm.key_generation(KeyType.AES, param=args.size)
|
|
elif (args.subcommand in ['x25519', 'x448']):
|
|
curve = 'curve' + args.subcommand[1:]
|
|
ret = picohsm.key_generation(KeyType.ECC, curve)
|
|
print('Key generated successfully.')
|
|
print(f'Key ID: {ret}')
|
|
|
|
def main(args):
|
|
sys.stderr.buffer.write(b'Pico HSM Tool v1.10\n')
|
|
sys.stderr.buffer.write(b'Author: Pol Henarejos\n')
|
|
sys.stderr.buffer.write(b'Report bugs to https://github.com/polhenarejos/pico-hsm/issues\n')
|
|
sys.stderr.buffer.write(b'\n\n')
|
|
sys.stderr.flush()
|
|
|
|
picohsm = PicoHSM(args.pin)
|
|
|
|
# Following commands may raise APDU exception on error
|
|
if (args.command == 'initialize'):
|
|
initialize(picohsm, args)
|
|
elif (args.command == 'attestate'):
|
|
attestate(picohsm, args)
|
|
elif (args.command == 'pki'):
|
|
pki(picohsm, args)
|
|
elif (args.command == 'datetime'):
|
|
rtc(picohsm, args)
|
|
elif (args.command == 'options'):
|
|
opts(picohsm, args)
|
|
elif (args.command == 'secure'):
|
|
secure(picohsm, args)
|
|
elif (args.command == 'cipher'):
|
|
cipher(picohsm, args)
|
|
elif (args.command == 'keygen'):
|
|
keygen(picohsm, args)
|
|
|
|
|
|
def run():
|
|
args = parse_args()
|
|
main(args)
|
|
|
|
if __name__ == "__main__":
|
|
run()
|