1#
2# This file is part of pyasn1-modules software.
3#
4# Created by Russ Housley
5# Copyright (c) 2019, Vigil Security, LLC
6# License: http://snmplabs.com/pyasn1/license.html
7#
8
9import sys
10
11from pyasn1.codec.der.decoder import decode as der_decode
12from pyasn1.codec.der.encoder import encode as der_encode
13
14from pyasn1.type import univ
15
16from pyasn1_modules import pem
17from pyasn1_modules import rfc5280
18from pyasn1_modules import rfc5916
19
20try:
21    import unittest2 as unittest
22except ImportError:
23    import unittest
24
25
26class DeviceCertTestCase(unittest.TestCase):
27    cert_pem_text = """\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43"""
44
45    def setUp(self):
46        self.asn1Spec = rfc5280.Certificate()
47
48    def testDerCodec(self):
49        substrate = pem.readBase64fromText(self.cert_pem_text)
50        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
51        assert not rest
52        assert asn1Object.prettyPrint()
53        assert der_encode(asn1Object) == substrate
54
55        found_dev_owner = False
56        der_dev_own_oid = der_encode(univ.ObjectIdentifier('1.3.6.1.4.1.22112.48.24'))
57
58        for extn in asn1Object['tbsCertificate']['extensions']:
59            if extn['extnID'] == rfc5280.id_ce_subjectDirectoryAttributes:
60                assert extn['extnID'] in rfc5280.certificateExtensionsMap.keys()
61                ev, rest = der_decode(extn['extnValue'],
62                    asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']])
63                assert not rest
64                assert ev.prettyPrint()
65                assert der_encode(ev) == extn['extnValue']
66
67                for attr in ev:
68                    if attr['type'] == rfc5916.id_deviceOwner:
69                        assert attr['values'][0] == der_dev_own_oid
70                        found_dev_owner = True
71
72        assert found_dev_owner
73
74    def testOpenTypes(self):
75        substrate = pem.readBase64fromText(self.cert_pem_text)
76        asn1Object, rest = der_decode(substrate,
77            asn1Spec=self.asn1Spec,
78            decodeOpenTypes=True)
79        assert not rest
80        assert asn1Object.prettyPrint()
81        assert der_encode(asn1Object) == substrate
82
83        found_dev_owner = False
84        dev_own_oid = univ.ObjectIdentifier('1.3.6.1.4.1.22112.48.24')
85
86        for extn in asn1Object['tbsCertificate']['extensions']:
87            if extn['extnID'] == rfc5280.id_ce_subjectDirectoryAttributes:
88                assert extn['extnID'] in rfc5280.certificateExtensionsMap.keys()
89                ev, rest = der_decode(extn['extnValue'],
90                    asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']],
91                    decodeOpenTypes=True)
92                assert not rest
93                assert ev.prettyPrint()
94                assert der_encode(ev) == extn['extnValue']
95
96                for attr in ev:
97                    if attr['type'] == rfc5916.id_deviceOwner:
98                        assert attr['values'][0] == dev_own_oid
99                        found_dev_owner = True
100
101        assert found_dev_owner
102
103
104suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
105
106if __name__ == '__main__':
107    import sys
108
109    result = unittest.TextTestRunner(verbosity=2).run(suite)
110    sys.exit(not result.wasSuccessful())
111