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_modules import pem
15from pyasn1_modules import rfc5652
16from pyasn1_modules import rfc5035
17
18try:
19    import unittest2 as unittest
20except ImportError:
21    import unittest
22
23
24class SignedMessageTestCase(unittest.TestCase):
25    signed_message_pem_text = """\
26MIIFzAYJKoZIhvcNAQcCoIIFvTCCBbkCAQExDTALBglghkgBZQMEAgIwUQYJKoZI
27hvcNAQcBoEQEQkNvbnRlbnQtVHlwZTogdGV4dC9wbGFpbg0KDQpXYXRzb24sIGNv
28bWUgaGVyZSAtIEkgd2FudCB0byBzZWUgeW91LqCCAnwwggJ4MIIB/qADAgECAgkA
29pbNUKBuwbjswCgYIKoZIzj0EAwMwPzELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAlZB
30MRAwDgYDVQQHDAdIZXJuZG9uMREwDwYDVQQKDAhCb2d1cyBDQTAeFw0xOTA1Mjkx
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36to8hMKoFgkcscqIbiV7Zo4GUMIGRMAsGA1UdDwQEAwIHgDBCBglghkgBhvhCAQ0E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"""
58
59    def setUp(self):
60        self.asn1Spec = rfc5652.ContentInfo()
61
62    def testDerCodec(self):
63        substrate = pem.readBase64fromText(self.signed_message_pem_text)
64        asn1Object, rest = der_decode (substrate, asn1Spec=self.asn1Spec)
65        assert not rest
66        assert asn1Object.prettyPrint()
67        assert der_encode(asn1Object) == substrate
68
69        assert asn1Object['contentType'] == rfc5652.id_signedData
70        sd, rest = der_decode(asn1Object['content'], asn1Spec=rfc5652.SignedData())
71        assert not rest
72        assert sd.prettyPrint()
73        assert der_encode(sd) == asn1Object['content']
74
75        for sa in sd['signerInfos'][0]['signedAttrs']:
76            sat = sa['attrType']
77            sav0 = sa['attrValues'][0]
78
79            if sat in rfc5652.cmsAttributesMap.keys():
80                sav, rest = der_decode(sav0, asn1Spec=rfc5652.cmsAttributesMap[sat])
81                assert not rest
82                assert sav.prettyPrint()
83                assert der_encode(sav) == sav0
84
85
86class SignedReceiptTestCase(unittest.TestCase):
87    signed_receipt_pem_text = """\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101pTAfBgNVHSMEGDAWgBTyNds0BNqlVfK9aQOZsGLs4hUIwTAKBggqhkjOPQQDAwNnADBkAjAV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112"""
113
114    def setUp(self):
115        self.asn1Spec = rfc5652.ContentInfo()
116
117    def testDerCodec(self):
118        substrate = pem.readBase64fromText(self.signed_receipt_pem_text)
119        asn1Object, rest = der_decode(substrate, asn1Spec=self.asn1Spec)
120        assert not rest
121        assert asn1Object.prettyPrint()
122        assert der_encode(asn1Object) == substrate
123
124        assert asn1Object['contentType'] == rfc5652.id_signedData
125        sd, rest = der_decode (asn1Object['content'], asn1Spec=rfc5652.SignedData())
126        assert not rest
127        assert sd.prettyPrint()
128        assert der_encode(sd) == asn1Object['content']
129
130        assert sd['encapContentInfo']['eContentType'] == rfc5035.id_ct_receipt
131        receipt, rest = der_decode(sd['encapContentInfo']['eContent'],
132                                   asn1Spec=rfc5035.Receipt())
133        assert not rest
134        assert receipt.prettyPrint()
135        assert der_encode(receipt) == sd['encapContentInfo']['eContent']
136
137        for sa in sd['signerInfos'][0]['signedAttrs']:
138            sat = sa['attrType']
139            sav0 = sa['attrValues'][0]
140
141            if sat in rfc5652.cmsAttributesMap.keys():
142                sav, rest = der_decode(sav0, asn1Spec=rfc5652.cmsAttributesMap[sat])
143                assert not rest
144                assert sav.prettyPrint()
145                assert der_encode(sav) == sav0
146
147    def testOpenTypes(self):
148        substrate = pem.readBase64fromText(self.signed_receipt_pem_text)
149        asn1Object, rest = der_decode(substrate,
150            asn1Spec=self.asn1Spec, decodeOpenTypes=True)
151        assert not rest
152        assert asn1Object.prettyPrint()
153        assert der_encode(asn1Object) == substrate
154
155        assert asn1Object['contentType'] in rfc5652.cmsContentTypesMap.keys()
156        assert asn1Object['contentType'] == rfc5652.id_signedData
157
158        sd = asn1Object['content']
159        assert sd['version'] == rfc5652.CMSVersion().subtype(value='v3')
160        assert sd['encapContentInfo']['eContentType'] in rfc5652.cmsContentTypesMap.keys()
161        assert sd['encapContentInfo']['eContentType'] == rfc5035.id_ct_receipt
162
163        for sa in sd['signerInfos'][0]['signedAttrs']:
164            assert sa['attrType'] in rfc5652.cmsAttributesMap.keys()
165            if sa['attrType'] == rfc5035.id_aa_msgSigDigest:
166                sa['attrValues'][0].prettyPrint()[:10] == '0x167378'
167
168        # Since receipt is inside an OCTET STRING, decodeOpenTypes=True cannot
169        # automatically decode it
170        receipt, rest = der_decode(sd['encapContentInfo']['eContent'],
171            asn1Spec=rfc5652.cmsContentTypesMap[sd['encapContentInfo']['eContentType']])
172        assert receipt['version'] == 1
173
174
175suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
176
177if __name__ == '__main__':
178    import sys
179
180    result = unittest.TextTestRunner(verbosity=2).run(suite)
181    sys.exit(not result.wasSuccessful())
182