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.compat.octets import str2octs
15
16from pyasn1_modules import pem
17from pyasn1_modules import rfc5480
18from pyasn1_modules import rfc5280
19from pyasn1_modules import rfc3770
20
21try:
22    import unittest2 as unittest
23except ImportError:
24    import unittest
25
26class CertificateTestCase(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    def testOpenTypes(self):
56        substrate = pem.readBase64fromText(self.cert_pem_text)
57        asn1Object, rest = der_decode(substrate,
58            asn1Spec=self.asn1Spec,
59            decodeOpenTypes=True)
60        assert not rest
61        assert asn1Object.prettyPrint()
62        assert der_encode(asn1Object) == substrate
63
64        sig_alg = asn1Object['tbsCertificate']['signature']
65        assert sig_alg['algorithm'] == rfc5480.ecdsa_with_SHA384
66        assert not sig_alg['parameters'].hasValue()
67
68        spki_alg = asn1Object['tbsCertificate']['subjectPublicKeyInfo']['algorithm']
69        assert spki_alg['algorithm'] == rfc5480.id_ecPublicKey
70        assert spki_alg['parameters']['namedCurve'] == rfc5480.secp384r1
71
72        extn_list = [ ]
73        for extn in asn1Object['tbsCertificate']['extensions']:
74            extn_list.append(extn['extnID'])
75            if extn['extnID'] in rfc5280.certificateExtensionsMap.keys():
76                extnValue, rest = der_decode(extn['extnValue'],
77                    asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']])
78                assert der_encode(extnValue) == extn['extnValue']
79
80                if extn['extnID'] == rfc3770.id_pe_wlanSSID:
81                    assert str2octs('Example') in extnValue
82
83                if extn['extnID'] == rfc5280.id_ce_extKeyUsage:
84                     assert rfc3770.id_kp_eapOverLAN in extnValue
85                     assert rfc3770.id_kp_eapOverPPP in extnValue
86
87        assert rfc3770.id_pe_wlanSSID in extn_list
88        assert rfc5280.id_ce_extKeyUsage in extn_list
89
90
91suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
92
93if __name__ == '__main__':
94    unittest.TextTestRunner(verbosity=2).run(suite)
95