+
+class case_decrypt_wireguard(subprocesstest.SubprocessTestCase):
+ key_Spriv_i = 'AKeZaHwBxjiKLFnkY2unvEdOTtg4AL+M9dQXfopFVFk='
+ key_Spub_i = 'Igge9KzRytKNwrgkzDE/8hrLu6Ly0OqVdvOPWhA5KR4='
+ key_Spriv_r = 'cFIxTUyBs1Qil414hBwEgvasEax8CKJ5IS5ZougplWs='
+ key_Spub_r = 'YDCttCs9e1J52/g9vEnwJJa+2x6RqaayAYMpSVQfGEY='
+ key_Epriv_i0 = 'sLGLJSOQfyz7JNJ5ZDzFf3Uz1rkiCMMjbWerNYcPFFU='
+ key_Epriv_r0 = 'QC4/FZKhFf0b/eXEcCecmZNt6V6PXmRa4EWG1PIYTU4='
+ key_Epriv_i1 = 'ULv83D+y3vA0t2mgmTmWz++lpVsrP7i4wNaUEK2oX0E='
+ key_Epriv_r1 = 'sBv1dhsm63cbvWMv/XML+bvynBp9PTdY9Vvptu3HQlg='
+
+ def runOne(self, args, pcap_file='wireguard-ping-tcp.pcap'):
+ if not config.have_libgcrypt17:
+ self.skipTest('Requires Gcrypt 1.7 or later')
+ capture_file = os.path.join(config.capture_dir, pcap_file)
+ proc = self.runProcess([config.cmd_tshark, '-r', capture_file] + args,
+ env=config.test_env)
+ lines = proc.stdout_str.splitlines()
+ return lines
+
+ def test_mac1_public(self):
+ """Check that MAC1 identification using public keys work."""
+ lines = self.runOne([
+ '-ouat:wg_keys:"Public","%s"' % self.key_Spub_i,
+ '-ouat:wg_keys:"Public","%s"' % self.key_Spub_r,
+ '-Y', 'wg.receiver_pubkey',
+ '-Tfields',
+ '-e', 'frame.number',
+ '-e', 'wg.receiver_pubkey',
+ '-e', 'wg.receiver_pubkey.known_privkey',
+ ])
+ self.assertEqual(4, len(lines))
+ self.assertIn('1\t%s\t0' % self.key_Spub_r, lines)
+ self.assertIn('2\t%s\t0' % self.key_Spub_i, lines)
+ self.assertIn('13\t%s\t0' % self.key_Spub_r, lines)
+ self.assertIn('14\t%s\t0' % self.key_Spub_i, lines)
+
+ def test_mac1_private(self):
+ """Check that MAC1 identification using private keys work."""
+ lines = self.runOne([
+ '-ouat:wg_keys:"Private","%s"' % self.key_Spriv_i,
+ '-ouat:wg_keys:"Private","%s"' % self.key_Spriv_r,
+ '-Y', 'wg.receiver_pubkey',
+ '-Tfields',
+ '-e', 'frame.number',
+ '-e', 'wg.receiver_pubkey',
+ '-e', 'wg.receiver_pubkey.known_privkey',
+ ])
+ self.assertEqual(4, len(lines))
+ self.assertIn('1\t%s\t1' % self.key_Spub_r, lines)
+ self.assertIn('2\t%s\t1' % self.key_Spub_i, lines)
+ self.assertIn('13\t%s\t1' % self.key_Spub_r, lines)
+ self.assertIn('14\t%s\t1' % self.key_Spub_i, lines)
+
+ def test_decrypt_initiation_sprivr(self):
+ """Check for partial decryption using Spriv_r."""
+ lines = self.runOne([
+ '-ouat:wg_keys:"Private","%s"' % self.key_Spriv_r,
+ '-Y', 'wg.type==1',
+ '-Tfields',
+ '-e', 'frame.number',
+ '-e', 'wg.static',
+ '-e', 'wg.static.known_pubkey',
+ '-e', 'wg.static.known_privkey',
+ '-e', 'wg.timestamp.nanoseconds',
+ ])
+ # static pubkey is unknown because Spub_i is not added to wg_keys.
+ self.assertIn('1\t%s\t0\t0\t%s' % (self.key_Spub_i, '356537872'), lines)
+ self.assertIn('13\t%s\t0\t0\t%s' % (self.key_Spub_i, '490514356'), lines)