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-rwxr-xr-xtpm2_smoke.py165
1 files changed, 165 insertions, 0 deletions
diff --git a/tpm2_smoke.py b/tpm2_smoke.py
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+++ b/tpm2_smoke.py
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+#! /usr/bin/env python
+# Copyright (c) 2015, 2016 Intel Corporation
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# * Neither the name of Intel Corporation nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+from argparse import ArgumentParser
+from argparse import FileType
+import os
+import sys
+import tpm2
+from tpm2 import ProtocolError
+import unittest
+
+
+class SmokeTest(unittest.TestCase):
+ def setUp(self):
+ self.client = tpm2.Client()
+ self.root_key = self.client.create_root_key()
+
+ def tearDown(self):
+ self.client.flush_context(self.root_key)
+
+ def test_seal_with_auth(self):
+ data = 'X' * 64
+ auth = 'A' * 15
+
+ blob = self.client.seal(self.root_key, data, auth, None)
+ result = self.client.unseal(self.root_key, blob, auth, None)
+ self.assertEqual(data, result)
+
+ def test_seal_with_policy(self):
+ handle = self.client.start_auth_session(tpm2.TPM2_SE_TRIAL)
+
+ data = 'X' * 64
+ auth = 'A' * 15
+ pcrs = [16]
+
+ try:
+ self.client.policy_pcr(handle, pcrs)
+ self.client.policy_password(handle)
+
+ policy_dig = self.client.get_policy_digest(handle)
+ finally:
+ self.client.flush_context(handle)
+
+ blob = self.client.seal(self.root_key, data, auth, policy_dig)
+
+ handle = self.client.start_auth_session(tpm2.TPM2_SE_POLICY)
+
+ try:
+ self.client.policy_pcr(handle, pcrs)
+ self.client.policy_password(handle)
+
+ result = self.client.unseal(self.root_key, blob, auth, handle)
+ except:
+ self.client.flush_context(handle)
+ raise
+
+ self.assertEqual(data, result)
+
+ def test_unseal_with_wrong_auth(self):
+ data = 'X' * 64
+ auth = 'A' * 20
+ rc = 0
+
+ blob = self.client.seal(self.root_key, data, auth, None)
+ try:
+ result = self.client.unseal(self.root_key, blob, auth[:-1] + 'B', None)
+ except ProtocolError, e:
+ rc = e.rc
+
+ self.assertEqual(rc, tpm2.TPM2_RC_AUTH_FAIL)
+
+ def test_unseal_with_wrong_policy(self):
+ handle = self.client.start_auth_session(tpm2.TPM2_SE_TRIAL)
+
+ data = 'X' * 64
+ auth = 'A' * 17
+ pcrs = [16]
+
+ try:
+ self.client.policy_pcr(handle, pcrs)
+ self.client.policy_password(handle)
+
+ policy_dig = self.client.get_policy_digest(handle)
+ finally:
+ self.client.flush_context(handle)
+
+ blob = self.client.seal(self.root_key, data, auth, policy_dig)
+
+ # Extend first a PCR that is not part of the policy and try to unseal.
+ # This should succeed.
+
+ ds = tpm2.get_digest_size(tpm2.TPM2_ALG_SHA1)
+ self.client.extend_pcr(1, 'X' * ds)
+
+ handle = self.client.start_auth_session(tpm2.TPM2_SE_POLICY)
+
+ try:
+ self.client.policy_pcr(handle, pcrs)
+ self.client.policy_password(handle)
+
+ result = self.client.unseal(self.root_key, blob, auth, handle)
+ except:
+ self.client.flush_context(handle)
+ raise
+
+ self.assertEqual(data, result)
+
+ # Then, extend a PCR that is part of the policy and try to unseal.
+ # This should fail.
+ self.client.extend_pcr(16, 'X' * ds)
+
+ handle = self.client.start_auth_session(tpm2.TPM2_SE_POLICY)
+
+ rc = 0
+
+ try:
+ self.client.policy_pcr(handle, pcrs)
+ self.client.policy_password(handle)
+
+ result = self.client.unseal(self.root_key, blob, auth, handle)
+ except ProtocolError, e:
+ rc = e.rc
+ self.client.flush_context(handle)
+ except:
+ self.client.flush_context(handle)
+ raise
+
+ self.assertEqual(rc, tpm2.TPM2_RC_POLICY_FAIL)
+
+ def test_seal_with_too_long_auth(self):
+ ds = tpm2.get_digest_size(tpm2.TPM2_ALG_SHA1)
+ data = 'X' * 64
+ auth = 'A' * (ds + 1)
+
+ rc = 0
+ try:
+ blob = self.client.seal(self.root_key, data, auth, None)
+ except ProtocolError, e:
+ rc = e.rc
+
+ self.assertEqual(rc, tpm2.TPM2_RC_SIZE)