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Diffstat (limited to 'tests/test_openpgp.py')
| -rw-r--r-- | tests/test_openpgp.py | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/tests/test_openpgp.py b/tests/test_openpgp.py new file mode 100644 index 0000000..1f78ad4 --- /dev/null +++ b/tests/test_openpgp.py @@ -0,0 +1,365 @@ +# -*- 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.documents import ( + TYPE_FINGERPRINT_PRIVATE_INDEX, + TYPE_ADDRESS_PRIVATE_INDEX, +) +from leap.keymanager.keys import OpenPGPKey + +from common import ( + KeyManagerWithSoledadTestCase, + ADDRESS, + ADDRESS_2, + KEY_FINGERPRINT, + PUBLIC_KEY, + 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, 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_raw_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_raw_key(PUBLIC_KEY, ADDRESS) + key = yield pgp.get_key(ADDRESS, private=False) + self.assertIsInstance(key, 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_raw_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_raw_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_raw_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_raw_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_raw_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_raw_key(PRIVATE_KEY, ADDRESS) + privkey = yield pgp.get_key(ADDRESS, private=True) + signed = pgp.sign(data, privkey) + yield pgp.put_raw_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_raw_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_raw_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_raw_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_raw_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_raw_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_raw_key(PRIVATE_KEY, ADDRESS) + pubkey = yield pgp.get_key(ADDRESS, private=False) + privkey = yield pgp.get_key(ADDRESS, private=True) + + yield pgp.put_raw_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_raw_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): + refreshed_keep = datetime(2007, 1, 1) + self._insert_key_docs([datetime(2005, 1, 1), + refreshed_keep, + datetime(2001, 1, 1)]) + delete_doc = self._mock_delete_doc() + + pgp = openpgp.OpenPGPScheme( + self._soledad, gpgbinary=self.gpg_binary_path) + key = yield pgp.get_key(ADDRESS, private=False) + self.assertEqual(key.refreshed_at, refreshed_keep) + self.assertEqual(self.count, 2) + 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_raw_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_FINGERPRINT_PRIVATE_INDEX and + args[2] == KEY_FINGERPRINT): + 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) + # it should have deleted the index + 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): + self._insert_key_docs([datetime(2005, 1, 1), + datetime(2007, 1, 1), + datetime(2001, 1, 1)]) + delete_doc = self._mock_delete_doc() + + pgp = openpgp.OpenPGPScheme( + self._soledad, gpgbinary=self.gpg_binary_path) + yield pgp.put_raw_key(PUBLIC_KEY, ADDRESS) + self._soledad.delete_doc = delete_doc + self.assertEqual(self.count, 2) + + @inlineCallbacks + def test_self_repair_six_active_docs(self): + pgp = openpgp.OpenPGPScheme( + self._soledad, gpgbinary=self.gpg_binary_path) + + k1 = OpenPGPKey(ADDRESS, fingerprint="1", + refreshed_at=datetime(2005, 1, 1)) + k2 = OpenPGPKey(ADDRESS, fingerprint="2", + refreshed_at=datetime(2007, 1, 1)) + k3 = OpenPGPKey(ADDRESS, fingerprint="3", + refreshed_at=datetime(2007, 1, 1), + encr_used=True, sign_used=True) + k4 = OpenPGPKey(ADDRESS, fingerprint="4", + refreshed_at=datetime(2007, 1, 1), + sign_used=True) + k5 = OpenPGPKey(ADDRESS, fingerprint="5", + refreshed_at=datetime(2007, 1, 1), + encr_used=True) + k6 = OpenPGPKey(ADDRESS, fingerprint="6", + refreshed_at=datetime(2006, 1, 1), + encr_used=True, sign_used=True) + keys = (k1, k2, k3, k4, k5, k6) + for key in keys: + yield self._soledad.create_doc_from_json(key.get_json()) + yield self._soledad.create_doc_from_json(key.get_active_json()) + + delete_doc = self._mock_delete_doc() + + key = yield pgp.get_key(ADDRESS, private=False) + self._soledad.delete_doc = delete_doc + self.assertEqual(self.count, 5) + self.assertEqual(key.fingerprint, "3") + + def _assert_key_not_found(self, pgp, address, private=False): + d = pgp.get_key(address, private=private) + return self.assertFailure(d, KeyNotFound) + + @inlineCallbacks + def _insert_key_docs(self, refreshed_at): + for date in refreshed_at: + key = OpenPGPKey(ADDRESS, fingerprint=KEY_FINGERPRINT, + refreshed_at=date) + yield self._soledad.create_doc_from_json(key.get_json()) + yield self._soledad.create_doc_from_json(key.get_active_json()) + + def _mock_delete_doc(self): + delete_doc = self._soledad.delete_doc + self.count = 0 + + def my_delete_doc(*args): + self.count += 1 + return delete_doc(*args) + self._soledad.delete_doc = my_delete_doc + return delete_doc |