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# -*- coding: utf-8 -*-
# test_crypto.py
# Copyright (C) 2013 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 cryptographic related stuff.
"""
import os
from leap.common.testing.basetest import BaseLeapTest
from leap.soledad.backends.leap_backend import LeapDocument
from leap.soledad.tests import BaseSoledadTest
from leap.soledad.tests import (
KEY_FINGERPRINT,
PRIVATE_KEY,
)
from leap.soledad import KeyAlreadyExists
from leap.soledad.crypto import SoledadCrypto
try:
import simplejson as json
except ImportError:
import json # noqa
class EncryptedSyncTestCase(BaseSoledadTest):
"""
Tests that guarantee that data will always be encrypted when syncing.
"""
def test_get_set_encrypted_json(self):
"""
Test getting and setting encrypted content.
"""
doc1 = LeapDocument(crypto=self._soledad._crypto)
doc1.content = {'key': 'val'}
doc2 = LeapDocument(doc_id=doc1.doc_id,
encrypted_json=doc1.get_encrypted_json(),
crypto=self._soledad._crypto)
res1 = doc1.get_json()
res2 = doc2.get_json()
self.assertEqual(res1, res2, 'incorrect document encryption')
def test_successful_symmetric_encryption(self):
"""
Test for successful symmetric encryption.
"""
doc1 = LeapDocument(crypto=self._soledad._crypto)
doc1.content = {'key': 'val'}
enc_json = json.loads(doc1.get_encrypted_json())['_encrypted_json']
self.assertEqual(
True,
self._soledad._crypto.is_encrypted_sym(enc_json),
"could not encrypt with passphrase.")
class RecoveryDocumentTestCase(BaseSoledadTest):
def test_export_recovery_document_raw(self):
rd = self._soledad.export_recovery_document(None)
self.assertEqual(
{
'user': self._soledad._user,
'symkey': self._soledad._symkey
},
json.loads(rd),
"Could not export raw recovery document."
)
def test_export_recovery_document_crypt(self):
rd = self._soledad.export_recovery_document('123456')
self.assertEqual(True,
self._soledad._crypto.is_encrypted_sym(rd))
data = {
'user': self._soledad._user,
'symkey': self._soledad._symkey,
}
raw_data = json.loads(str(self._soledad._crypto.decrypt(
rd,
passphrase='123456')))
self.assertEqual(
raw_data,
data,
"Could not export raw recovery document."
)
def test_import_recovery_document_raises_exception(self):
rd = self._soledad.export_recovery_document(None)
self.assertRaises(KeyAlreadyExists,
self._soledad.import_recovery_document, rd, None)
def test_import_recovery_document_raw(self):
rd = self._soledad.export_recovery_document(None)
gnupg_home = self.gnupg_home = "%s/gnupg2" % self.tempdir
s = self._soledad_instance(user='anotheruser@leap.se', prefix='/2')
s._init_dirs()
s._crypto = SoledadCrypto(gnupg_home)
s.import_recovery_document(rd, None)
self.assertEqual(self._soledad._user,
s._user, 'Failed setting user email.')
self.assertEqual(self._soledad._symkey,
s._symkey,
'Failed settinng secret for symmetric encryption.')
def test_import_recovery_document_crypt(self):
rd = self._soledad.export_recovery_document('123456')
gnupg_home = self.gnupg_home = "%s/gnupg2" % self.tempdir
s = self._soledad_instance(user='anotheruser@leap.se', prefix='3')
s._init_dirs()
s._crypto = SoledadCrypto(gnupg_home)
s.import_recovery_document(rd, '123456')
self.assertEqual(self._soledad._user,
s._user, 'Failed setting user email.')
self.assertEqual(self._soledad._symkey,
s._symkey,
'Failed settinng secret for symmetric encryption.')
class CryptoMethodsTestCase(BaseSoledadTest):
def test__gen_symkey(self):
sol = self._soledad_instance(user='user@leap.se', prefix='/3')
sol._init_dirs()
sol._crypto = SoledadCrypto("%s/3/gnupg" % self.tempdir)
self.assertFalse(sol._has_symkey(), "Should not have a symkey at "
"this point")
sol._gen_symkey()
self.assertTrue(sol._has_symkey(), "Could not generate symkey.")
def test__has_keys(self):
sol = self._soledad_instance(user='leap@leap.se', prefix='/5')
sol._init_dirs()
sol._crypto = SoledadCrypto("%s/5/gnupg" % self.tempdir)
self.assertFalse(sol._has_keys())
sol._gen_symkey()
self.assertTrue(sol._has_keys())
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