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|
# -*- coding: utf-8 -*-
# test_keymanager.py
# Copyright (C) 2014 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Tests for the OpenPGP support on Key Manager.
"""
from datetime import datetime
from mock import Mock
from twisted.internet.defer import inlineCallbacks, gatherResults, succeed
from leap.keymanager import (
KeyNotFound,
openpgp,
)
from leap.keymanager.keys import TYPE_ID_PRIVATE_INDEX
from leap.keymanager.openpgp import OpenPGPKey
from leap.keymanager.tests import (
KeyManagerWithSoledadTestCase,
ADDRESS,
ADDRESS_2,
KEY_FINGERPRINT,
PUBLIC_KEY,
KEY_ID,
PUBLIC_KEY_2,
PRIVATE_KEY,
PRIVATE_KEY_2,
)
class OpenPGPCryptoTestCase(KeyManagerWithSoledadTestCase):
# set the trial timeout to 20min, needed by the key generation test
timeout = 1200
@inlineCallbacks
def _test_openpgp_gen_key(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield self._assert_key_not_found(pgp, 'user@leap.se')
key = yield pgp.gen_key('user@leap.se')
self.assertIsInstance(key, openpgp.OpenPGPKey)
self.assertEqual(
['user@leap.se'], key.address, 'Wrong address bound to key.')
self.assertEqual(
4096, key.length, 'Wrong key length.')
@inlineCallbacks
def test_openpgp_put_delete_key(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield self._assert_key_not_found(pgp, ADDRESS)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
key = yield pgp.get_key(ADDRESS, private=False)
yield pgp.delete_key(key)
yield self._assert_key_not_found(pgp, ADDRESS)
@inlineCallbacks
def test_openpgp_put_ascii_key(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield self._assert_key_not_found(pgp, ADDRESS)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
key = yield pgp.get_key(ADDRESS, private=False)
self.assertIsInstance(key, openpgp.OpenPGPKey)
self.assertTrue(
ADDRESS in key.address, 'Wrong address bound to key.')
self.assertEqual(
4096, key.length, 'Wrong key length.')
yield pgp.delete_key(key)
yield self._assert_key_not_found(pgp, ADDRESS)
@inlineCallbacks
def test_get_public_key(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield self._assert_key_not_found(pgp, ADDRESS)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
yield self._assert_key_not_found(pgp, ADDRESS, private=True)
key = yield pgp.get_key(ADDRESS, private=False)
self.assertTrue(ADDRESS in key.address)
self.assertFalse(key.private)
self.assertEqual(KEY_FINGERPRINT, key.fingerprint)
yield pgp.delete_key(key)
yield self._assert_key_not_found(pgp, ADDRESS)
@inlineCallbacks
def test_openpgp_encrypt_decrypt(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
# encrypt
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
pubkey = yield pgp.get_key(ADDRESS, private=False)
cyphertext = yield pgp.encrypt(data, pubkey)
self.assertTrue(cyphertext is not None)
self.assertTrue(cyphertext != '')
self.assertTrue(cyphertext != data)
self.assertTrue(pgp.is_encrypted(cyphertext))
self.assertTrue(pgp.is_encrypted(cyphertext))
# decrypt
yield self._assert_key_not_found(pgp, ADDRESS, private=True)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
decrypted, _ = yield pgp.decrypt(cyphertext, privkey)
self.assertEqual(decrypted, data)
yield pgp.delete_key(pubkey)
yield pgp.delete_key(privkey)
yield self._assert_key_not_found(pgp, ADDRESS, private=False)
yield self._assert_key_not_found(pgp, ADDRESS, private=True)
@inlineCallbacks
def test_verify_with_private_raises(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
signed = pgp.sign(data, privkey)
self.assertRaises(
AssertionError,
pgp.verify, signed, privkey)
@inlineCallbacks
def test_sign_with_public_raises(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
self.assertRaises(
AssertionError,
pgp.sign, data, ADDRESS, OpenPGPKey)
@inlineCallbacks
def test_verify_with_wrong_key_raises(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
signed = pgp.sign(data, privkey)
yield pgp.put_ascii_key(PUBLIC_KEY_2, ADDRESS_2)
wrongkey = yield pgp.get_key(ADDRESS_2)
self.assertFalse(pgp.verify(signed, wrongkey))
@inlineCallbacks
def test_encrypt_sign_with_public_raises(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
pubkey = yield pgp.get_key(ADDRESS, private=False)
self.failureResultOf(
pgp.encrypt(data, privkey, sign=pubkey),
AssertionError)
@inlineCallbacks
def test_decrypt_verify_with_private_raises(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
pubkey = yield pgp.get_key(ADDRESS, private=False)
encrypted_and_signed = yield pgp.encrypt(
data, pubkey, sign=privkey)
self.failureResultOf(
pgp.decrypt(encrypted_and_signed, privkey, verify=privkey),
AssertionError)
@inlineCallbacks
def test_decrypt_verify_with_wrong_key(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
pubkey = yield pgp.get_key(ADDRESS, private=False)
encrypted_and_signed = yield pgp.encrypt(data, pubkey, sign=privkey)
yield pgp.put_ascii_key(PUBLIC_KEY_2, ADDRESS_2)
wrongkey = yield pgp.get_key(ADDRESS_2)
decrypted, validsign = yield pgp.decrypt(encrypted_and_signed,
privkey,
verify=wrongkey)
self.assertEqual(decrypted, data)
self.assertFalse(validsign)
@inlineCallbacks
def test_sign_verify(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
signed = pgp.sign(data, privkey, detach=False)
pubkey = yield pgp.get_key(ADDRESS, private=False)
validsign = pgp.verify(signed, pubkey)
self.assertTrue(validsign)
@inlineCallbacks
def test_encrypt_sign_decrypt_verify(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
pubkey = yield pgp.get_key(ADDRESS, private=False)
privkey = yield pgp.get_key(ADDRESS, private=True)
yield pgp.put_ascii_key(PRIVATE_KEY_2, ADDRESS_2)
pubkey2 = yield pgp.get_key(ADDRESS_2, private=False)
privkey2 = yield pgp.get_key(ADDRESS_2, private=True)
data = 'data'
encrypted_and_signed = yield pgp.encrypt(
data, pubkey2, sign=privkey)
res, validsign = yield pgp.decrypt(
encrypted_and_signed, privkey2, verify=pubkey)
self.assertEqual(data, res)
self.assertTrue(validsign)
@inlineCallbacks
def test_sign_verify_detached_sig(self):
data = 'data'
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PRIVATE_KEY, ADDRESS)
privkey = yield pgp.get_key(ADDRESS, private=True)
signature = yield pgp.sign(data, privkey, detach=True)
pubkey = yield pgp.get_key(ADDRESS, private=False)
validsign = pgp.verify(data, pubkey, detached_sig=signature)
self.assertTrue(validsign)
@inlineCallbacks
def test_self_repair_three_keys(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
get_from_index = self._soledad.get_from_index
delete_doc = self._soledad.delete_doc
def my_get_from_index(*args):
if (args[0] == TYPE_ID_PRIVATE_INDEX and
args[2] == KEY_ID):
k1 = OpenPGPKey(ADDRESS, key_id="1",
refreshed_at=datetime(2005, 1, 1))
k2 = OpenPGPKey(ADDRESS, key_id="2",
refreshed_at=datetime(2007, 1, 1))
k3 = OpenPGPKey(ADDRESS, key_id="3",
refreshed_at=datetime(2001, 1, 1))
d1 = self._soledad.create_doc_from_json(k1.get_json())
d2 = self._soledad.create_doc_from_json(k2.get_json())
d3 = self._soledad.create_doc_from_json(k3.get_json())
return gatherResults([d1, d2, d3])
return get_from_index(*args)
self._soledad.get_from_index = my_get_from_index
self._soledad.delete_doc = Mock(return_value=succeed(None))
key = yield pgp.get_key(ADDRESS, private=False)
try:
self.assertEqual(key.key_id, "2")
self.assertEqual(self._soledad.delete_doc.call_count, 2)
finally:
self._soledad.get_from_index = get_from_index
self._soledad.delete_doc = delete_doc
@inlineCallbacks
def test_self_repair_no_keys(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
get_from_index = self._soledad.get_from_index
delete_doc = self._soledad.delete_doc
def my_get_from_index(*args):
if (args[0] == TYPE_ID_PRIVATE_INDEX and
args[2] == KEY_ID):
return succeed([])
return get_from_index(*args)
self._soledad.get_from_index = my_get_from_index
self._soledad.delete_doc = Mock(return_value=succeed(None))
try:
yield self.assertFailure(pgp.get_key(ADDRESS, private=False),
KeyNotFound)
self.assertEqual(self._soledad.delete_doc.call_count, 1)
finally:
self._soledad.get_from_index = get_from_index
self._soledad.delete_doc = delete_doc
@inlineCallbacks
def test_self_repair_put_keys(self):
pgp = openpgp.OpenPGPScheme(
self._soledad, gpgbinary=self.gpg_binary_path)
get_from_index = self._soledad.get_from_index
delete_doc = self._soledad.delete_doc
def my_get_from_index(*args):
if (args[0] == TYPE_ID_PRIVATE_INDEX and
args[2] == KEY_ID):
k1 = OpenPGPKey(ADDRESS, key_id="1",
fingerprint=KEY_FINGERPRINT,
refreshed_at=datetime(2005, 1, 1))
k2 = OpenPGPKey(ADDRESS, key_id="2",
fingerprint=KEY_FINGERPRINT,
refreshed_at=datetime(2007, 1, 1))
k3 = OpenPGPKey(ADDRESS, key_id="3",
fingerprint=KEY_FINGERPRINT,
refreshed_at=datetime(2001, 1, 1))
d1 = self._soledad.create_doc_from_json(k1.get_json())
d2 = self._soledad.create_doc_from_json(k2.get_json())
d3 = self._soledad.create_doc_from_json(k3.get_json())
return gatherResults([d1, d2, d3])
return get_from_index(*args)
self._soledad.get_from_index = my_get_from_index
self._soledad.delete_doc = Mock(return_value=succeed(None))
try:
yield pgp.put_ascii_key(PUBLIC_KEY, ADDRESS)
self.assertEqual(self._soledad.delete_doc.call_count, 2)
finally:
self._soledad.get_from_index = get_from_index
self._soledad.delete_doc = delete_doc
def _assert_key_not_found(self, pgp, address, private=False):
d = pgp.get_key(address, private=private)
return self.assertFailure(d, KeyNotFound)
|
