# pygpgme - a Python wrapper for the gpgme library
# Copyright (C) 2006 James Henstridge
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import unittest
try:
from io import BytesIO
except ImportError:
from StringIO import StringIO as BytesIO
from textwrap import dedent
import gpgme
from gpgme.tests.util import GpgHomeTestCase
class SignVerifyTestCase(GpgHomeTestCase):
import_keys = ['key1.pub', 'key1.sec', 'key2.pub', 'key2.sec',
'signonly.pub', 'signonly.sec']
def test_verify_normal(self):
signature = BytesIO(dedent('''
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.1 (GNU/Linux)
owGbwMvMwCTotjv0Q0dM6hLG00JJDM7nNx31SM3JyVcIzy/KSeHqsGdmBQvCVAky
pR9hmGfw0qo3bfpWZwun5euYAsUcVkyZMJlhfvkU6UBjD8WF9RfeND05zC/TK+H+
EQA=
=HCW0
-----END PGP MESSAGE-----
'''))
plaintext = BytesIO()
ctx = gpgme.Context()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].notations, [])
self.assertEqual(sigs[0].timestamp, 1137685189)
self.assertEqual(sigs[0].exp_timestamp, 0)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_verify_detached(self):
signature = BytesIO(dedent('''
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQBDz7ReRrtV8IhcZaQRAtuUAJwMiJeS5QPohToxA3+vp+z5c3jr1wCdHhGP
hhSTiguzgSYNwKSuV6SLGOM=
=dyZS
-----END PGP SIGNATURE-----
'''))
signed_text = BytesIO('Hello World\n')
ctx = gpgme.Context()
sigs = ctx.verify(signature, signed_text, None)
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].notations, [])
self.assertEqual(sigs[0].timestamp, 1137685598)
self.assertEqual(sigs[0].exp_timestamp, 0)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_verify_clearsign(self):
signature = BytesIO(dedent('''
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello World
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
iD8DBQFDz7DiRrtV8IhcZaQRAjuYAJ43/NhhNHx+gzGBUqtIK5LpENTCGgCfV3aO
ZTFlGRyKN26HccsC6ZWcPUQ=
=kZ2c
-----END PGP SIGNATURE-----
'''))
plaintext = BytesIO()
ctx = gpgme.Context()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].notations, [])
self.assertEqual(sigs[0].timestamp, 1137684706)
self.assertEqual(sigs[0].exp_timestamp, 0)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_verify_multiple_sigs(self):
signature = BytesIO(dedent('''
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello World
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)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=0A7N
-----END PGP SIGNATURE-----
'''))
plaintext = BytesIO()
ctx = gpgme.Context()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 2)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].notations, [])
self.assertEqual(sigs[0].timestamp, 1137685885)
self.assertEqual(sigs[0].exp_timestamp, 0)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
self.assertEqual(sigs[1].summary, 0)
self.assertEqual(sigs[1].fpr,
'93C2240D6B8AA10AB28F701D2CF46B7FC97E6B0F')
self.assertEqual(sigs[1].status, None)
self.assertEqual(sigs[1].notations, [])
self.assertEqual(sigs[1].timestamp, 1137685885)
self.assertEqual(sigs[1].exp_timestamp, 0)
self.assertEqual(sigs[1].wrong_key_usage, False)
self.assertEqual(sigs[1].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[1].validity_reason, None)
def test_verify_no_signature(self):
signature = BytesIO(dedent('''
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello World
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----
'''))
plaintext = BytesIO()
ctx = gpgme.Context()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), '')
self.assertEqual(len(sigs), 0)
def test_verify_bad_signature(self):
signature = BytesIO(dedent('''
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello World
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)
iNhhNHx+gzGBUqtIK5LpENTCGgCfV3aO
-----END PGP SIGNATURE-----
'''))
plaintext = BytesIO()
ctx = gpgme.Context()
try:
ctx.verify(signature, None, plaintext)
except gpgme.GpgmeError, exc:
self.assertEqual(exc[0], gpgme.ERR_SOURCE_GPGME)
self.assertEqual(exc[1], gpgme.ERR_NO_DATA)
else:
self.fail('gpgme.GpgmeError not raised')
def test_sign_normal(self):
ctx = gpgme.Context()
ctx.armor = False
key = ctx.get_key('E79A842DA34A1CA383F64A1546BB55F0885C65A4')
ctx.signers = [key]
plaintext = BytesIO('Hello World\n')
signature = BytesIO()
new_sigs = ctx.sign(plaintext, signature, gpgme.SIG_MODE_NORMAL)
self.assertEqual(len(new_sigs), 1)
self.assertEqual(new_sigs[0].type, gpgme.SIG_MODE_NORMAL)
self.assertEqual(new_sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
# now verify the signature
signature.seek(0)
plaintext = BytesIO()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_sign_normal_armor(self):
ctx = gpgme.Context()
ctx.armor = True
key = ctx.get_key('E79A842DA34A1CA383F64A1546BB55F0885C65A4')
ctx.signers = [key]
plaintext = BytesIO('Hello World\n')
signature = BytesIO()
new_sigs = ctx.sign(plaintext, signature, gpgme.SIG_MODE_NORMAL)
self.assertEqual(len(new_sigs), 1)
self.assertEqual(new_sigs[0].type, gpgme.SIG_MODE_NORMAL)
self.assertEqual(new_sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
# now verify the signature
signature.seek(0)
plaintext = BytesIO()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_sign_detatch(self):
ctx = gpgme.Context()
ctx.armor = True
key = ctx.get_key('E79A842DA34A1CA383F64A1546BB55F0885C65A4')
ctx.signers = [key]
plaintext = BytesIO('Hello World\n')
signature = BytesIO()
new_sigs = ctx.sign(plaintext, signature, gpgme.SIG_MODE_DETACH)
self.assertEqual(len(new_sigs), 1)
self.assertEqual(new_sigs[0].type, gpgme.SIG_MODE_DETACH)
self.assertEqual(new_sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
# now verify the signature
signature.seek(0)
plaintext.seek(0)
sigs = ctx.verify(signature, plaintext, None)
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_sign_clearsign(self):
ctx = gpgme.Context()
ctx.armor = True
key = ctx.get_key('E79A842DA34A1CA383F64A1546BB55F0885C65A4')
ctx.signers = [key]
plaintext = BytesIO('Hello World\n')
signature = BytesIO()
new_sigs = ctx.sign(plaintext, signature, gpgme.SIG_MODE_CLEAR)
self.assertEqual(len(new_sigs), 1)
self.assertEqual(new_sigs[0].type, gpgme.SIG_MODE_CLEAR)
self.assertEqual(new_sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
# now verify the signature
signature.seek(0)
plaintext = BytesIO()
sigs = ctx.verify(signature, None, plaintext)
self.assertEqual(plaintext.getvalue(), 'Hello World\n')
self.assertEqual(len(sigs), 1)
self.assertEqual(sigs[0].summary, 0)
self.assertEqual(sigs[0].fpr,
'E79A842DA34A1CA383F64A1546BB55F0885C65A4')
self.assertEqual(sigs[0].status, None)
self.assertEqual(sigs[0].wrong_key_usage, False)
self.assertEqual(sigs[0].validity, gpgme.VALIDITY_UNKNOWN)
self.assertEqual(sigs[0].validity_reason, None)
def test_suite():
loader = unittest.TestLoader()
return loader.loadTestsFromName(__name__)
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