1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley
# Copyright (c) 2019, Vigil Security, LLC
# License: https://www.pysnmp.com/pyasn1/license.html
#
import sys
import unittest
from pyasn1.codec.der.decoder import decode as der_decoder
from pyasn1.codec.der.encoder import encode as der_encoder
from pyasn1.type import univ
from pyasn1_modules import pem, rfc3852, rfc6402
class ContentInfoTestCase(unittest.TestCase):
pem_text = """\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"""
def setUp(self):
self.asn1Spec = rfc3852.ContentInfo()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.pem_text)
layers = {
rfc3852.id_ct_contentInfo: rfc3852.ContentInfo(),
rfc3852.id_signedData: rfc3852.SignedData(),
rfc6402.id_cct_PKIData: rfc6402.PKIData(),
}
getNextLayer = {
rfc3852.id_ct_contentInfo: lambda x: x["contentType"],
rfc3852.id_signedData: lambda x: x["encapContentInfo"]["eContentType"],
rfc6402.id_cct_PKIData: lambda x: None,
}
getNextSubstrate = {
rfc3852.id_ct_contentInfo: lambda x: x["content"],
rfc3852.id_signedData: lambda x: x["encapContentInfo"]["eContent"],
rfc6402.id_cct_PKIData: lambda x: None,
}
alg_oids = (
univ.ObjectIdentifier("1.3.14.3.2.26"),
univ.ObjectIdentifier("1.2.840.113549.1.1.1"),
univ.ObjectIdentifier("1.2.840.113549.1.1.5"),
univ.ObjectIdentifier("1.2.840.113549.1.1.11"),
)
encoded_null = der_encoder(univ.Null(""))
next_layer = rfc3852.id_ct_contentInfo
count = 0
while next_layer:
asn1Object, rest = der_decoder(substrate, asn1Spec=layers[next_layer])
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(substrate, der_encoder(asn1Object))
if next_layer == rfc3852.id_signedData:
for d in asn1Object["digestAlgorithms"]:
self.assertIn(d["algorithm"], alg_oids)
self.assertEqual(encoded_null, d["parameters"])
count += 1
for si in asn1Object["signerInfos"]:
self.assertIn(si["digestAlgorithm"]["algorithm"], alg_oids)
self.assertEqual(encoded_null, si["digestAlgorithm"]["parameters"])
count += 1
self.assertIn(si["signatureAlgorithm"]["algorithm"], alg_oids)
self.assertEqual(
encoded_null, si["signatureAlgorithm"]["parameters"]
)
count += 1
if next_layer == rfc6402.id_cct_PKIData:
for req in asn1Object["reqSequence"]:
cr = req["tcr"]["certificationRequest"]
self.assertIn(cr["signatureAlgorithm"]["algorithm"], alg_oids)
self.assertEqual(
encoded_null, cr["signatureAlgorithm"]["parameters"]
)
count += 1
cri_spki = cr["certificationRequestInfo"]["subjectPublicKeyInfo"]
self.assertIn(cri_spki["algorithm"]["algorithm"], alg_oids)
self.assertEqual(encoded_null, cri_spki["algorithm"]["parameters"])
count += 1
substrate = getNextSubstrate[next_layer](asn1Object)
next_layer = getNextLayer[next_layer](asn1Object)
self.assertEqual(5, count)
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == "__main__":
result = unittest.TextTestRunner(verbosity=2).run(suite)
sys.exit(not result.wasSuccessful())
|
