1 files changed, 131 insertions, 0 deletions
diff --git a/tests/test_rfc3852.py b/tests/test_rfc3852.py
new file mode 100644
index 0000000..94a618c
--- /dev/null
+++ b/tests/test_rfc3852.py
@@ -0,0 +1,131 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# Created by Russ Housley
+# Copyright (c) 2019, Vigil Security, LLC
+# License: http://snmplabs.com/pyasn1/license.html
+#
+
+import sys
+
+from pyasn1.codec.der.decoder import decode as der_decode
+from pyasn1.codec.der.encoder import encode as der_encode
+
+from pyasn1.type import univ
+
+from pyasn1_modules import pem
+from pyasn1_modules import rfc3852
+from pyasn1_modules import rfc6402
+
+try:
+    import unittest2 as unittest
+
+except ImportError:
+    import unittest
+
+
+class ContentInfoTestCase(unittest.TestCase):
+    pem_text = """\
+MIIEJQYJKoZIhvcNAQcCoIIEFjCCBBICAQMxCzAJBgUrDgMCGgUAMIIDAgYIKwYBBQUHDAKgggL0
+BIIC8DCCAuwweDB2AgECBgorBgEEAYI3CgoBMWUwYwIBADADAgEBMVkwVwYJKwYBBAGCNxUUMUow
+SAIBBQwZcGl0dWNoYTEuZW1lYS5ocHFjb3JwLm5ldAwMRU1FQVxwaXR1Y2hhDBpDTUNSZXFHZW5l
+cmF0b3IudnNob3N0LmV4ZTCCAmqgggJmAgEBMIICXzCCAcgCAQAwADCBnzANBgkqhkiG9w0BAQEF
+AAOBjQAwgYkCgYEA0jm7SSSm2wyEAzuNKtFZFJKo91SrJq9wQwEhEKHDavZwMQOm1rZ2PF8NWCEb
+PqrhToQ7rtiGLSZa4dF4bzgmBqQ9aoSfEX4jISt31Vy+skHidXjHHpbsjT24NPhrZgANivL7CxD6
+Ft+s7qS1gL4HRm2twQkqSwOLrE/q2QeXl2UCAwEAAaCCAR0wGgYKKwYBBAGCNw0CAzEMFgo2LjIu
+OTIwMC4yMD4GCSqGSIb3DQEJDjExMC8wHQYDVR0OBBYEFMW2skn88gxhONWZQA4sWGBDb68yMA4G
+A1UdDwEB/wQEAwIHgDBXBgkrBgEEAYI3FRQxSjBIAgEFDBlwaXR1Y2hhMS5lbWVhLmhwcWNvcnAu
+bmV0DAxFTUVBXHBpdHVjaGEMGkNNQ1JlcUdlbmVyYXRvci52c2hvc3QuZXhlMGYGCisGAQQBgjcN
+AgIxWDBWAgECHk4ATQBpAGMAcgBvAHMAbwBmAHQAIABTAHQAcgBvAG4AZwAgAEMAcgB5AHAAdABv
+AGcAcgBhAHAAaABpAGMAIABQAHIAbwB2AGkAZABlAHIDAQAwDQYJKoZIhvcNAQEFBQADgYEAJZlu
+mxjtCxSOQi27jsVdd3y8NSIlzNv0b3LqmzvAly6L+CstXcnuG2MPQqPH9R7tbJonGUniBQO9sQ7C
+KhYWj2gfhiEkSID82lV5chINVUFKoUlSiEhWr0tPGgvOaqdsKQcrHfzrsBbFkhDqrFSVy7Yivbnh
+qYszKrOjJKiiCPMwADAAMYH5MIH2AgEDgBTFtrJJ/PIMYTjVmUAOLFhgQ2+vMjAJBgUrDgMCGgUA
+oD4wFwYJKoZIhvcNAQkDMQoGCCsGAQUFBwwCMCMGCSqGSIb3DQEJBDEWBBTFTkK/OifaFjwqHiJu
+xM7qXcg/VzANBgkqhkiG9w0BAQEFAASBgKfC6jOi1Wgy4xxDCQVK9+e5tktL8wE/j2cb9JSqq+aU
+5UxEgXEw7q7BoYZCAzcxMRriGzakXr8aXHcgkRJ7XcFvLPUjpmGg9SOZ2sGW4zQdWAwImN/i8loc
+xicQmJP+VoMHo/ZpjFY9fYCjNZUArgKsEwK/s+p9yrVVeB1Nf8Mn
+"""
+
+    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_encode(univ.Null(""))
+
+        next_layer = rfc3852.id_ct_contentInfo
+
+        count = 0
+        while next_layer:
+            asn1Object, rest = der_decode(substrate, asn1Spec=layers[next_layer])
+            assert not rest
+            assert asn1Object.prettyPrint()
+            assert der_encode(asn1Object) == substrate
+    
+            if next_layer == rfc3852.id_signedData:
+               for d in asn1Object['digestAlgorithms']:
+                   assert d['algorithm'] in alg_oids
+                   assert d['parameters'] == encoded_null
+                   count += 1
+
+               for si in asn1Object['signerInfos']:
+                   assert si['digestAlgorithm']['algorithm'] in alg_oids
+                   assert si['digestAlgorithm']['parameters'] == encoded_null
+                   count += 1
+
+                   assert si['signatureAlgorithm']['algorithm'] in alg_oids
+                   assert si['signatureAlgorithm']['parameters'] == encoded_null
+                   count += 1
+
+            if next_layer == rfc6402.id_cct_PKIData:
+                for req in asn1Object['reqSequence']:
+                    cr = req['tcr']['certificationRequest']
+                    assert cr['signatureAlgorithm']['algorithm'] in alg_oids
+                    assert cr['signatureAlgorithm']['parameters'] == encoded_null
+                    count += 1
+
+                    cri_spki = cr['certificationRequestInfo']['subjectPublicKeyInfo']
+                    assert cri_spki['algorithm']['algorithm'] in alg_oids
+                    assert cri_spki['algorithm']['parameters'] == encoded_null
+                    count += 1
+
+            substrate = getNextSubstrate[next_layer](asn1Object)
+            next_layer = getNextLayer[next_layer](asn1Object)
+
+        assert count == 5
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    import sys
+
+    result = unittest.TextTestRunner(verbosity=2).run(suite)
+    sys.exit(not result.wasSuccessful())