1 files changed, 109 insertions, 0 deletions
diff --git a/tests/test_rfc6664.py b/tests/test_rfc6664.py
new file mode 100644
index 0000000..38d0a54
--- /dev/null
+++ b/tests/test_rfc6664.py
@@ -0,0 +1,109 @@
+#
+# This file is part of pyasn1-modules software.
+#
+# 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_modules import pem
+from pyasn1_modules import rfc5480
+from pyasn1_modules import rfc5652
+from pyasn1_modules import rfc5751
+from pyasn1_modules import rfc6664
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+
+class SMIMECapabilitiesTestCase(unittest.TestCase):
+    smime_capabilities_pem_text = """\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==
+"""
+
+    def setUp(self):
+        self.asn1Spec = rfc5751.SMIMECapabilities()
+
+    def testDerCodec(self):
+        substrate = pem.readBase64fromText(self.smime_capabilities_pem_text)
+        asn1Object, rest = der_decode (substrate, asn1Spec=self.asn1Spec)
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encode(asn1Object) == substrate
+
+        count = 0
+        for cap in asn1Object:
+            if cap['capabilityID'] in rfc5751.smimeCapabilityMap.keys():
+                substrate = cap['parameters']
+                cap_p, rest = der_decode (substrate,
+                    asn1Spec=rfc5751.smimeCapabilityMap[cap['capabilityID']])
+                assert not rest
+                assert cap_p.prettyPrint()
+                assert der_encode(cap_p) == substrate
+                count += 1
+
+        assert count == 8
+
+    def testOpenTypes(self):
+        substrate = pem.readBase64fromText(self.smime_capabilities_pem_text)
+        asn1Object, rest = der_decode(substrate,
+            asn1Spec=self.asn1Spec,
+            decodeOpenTypes=True)
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert der_encode(asn1Object) == substrate
+
+        parameterValue = {
+            rfc6664.rsaEncryption:  lambda x: x['maxKeySize'],
+            rfc6664.id_RSAES_OAEP:  lambda x: x['maxKeySize'],
+            rfc6664.id_RSASSA_PSS:  lambda x: x['minKeySize'],
+            rfc6664.id_dsa:         lambda x: x['keySizes']['maxKeySize'],
+            rfc6664.dhpublicnumber: lambda x: x['keyParams']['q'] % 1023,
+            rfc6664.id_ecPublicKey: lambda x: x[0]['namedCurve'],
+            rfc6664.id_ecMQV:       lambda x: x[1]['namedCurve'],
+        }
+
+        expectedValue = {
+            rfc6664.rsaEncryption:  4096,
+            rfc6664.id_RSAES_OAEP:  4096,
+            rfc6664.id_RSASSA_PSS:  1024,
+            rfc6664.id_dsa:         3072,
+            rfc6664.dhpublicnumber: 257,
+            rfc6664.id_ecPublicKey: rfc5480.secp256r1,
+            rfc6664.id_ecMQV:       rfc5480.secp384r1,
+        }
+
+        count = 0
+        for cap in asn1Object:
+            if cap['capabilityID'] in parameterValue.keys():
+                pValue = parameterValue[cap['capabilityID']](cap['parameters'])
+                eValue = expectedValue[cap['capabilityID']]
+                assert pValue == eValue
+                count += 1
+
+        assert count == 7
+
+
+suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+
+if __name__ == '__main__':
+    import sys
+
+    result = unittest.TextTestRunner(verbosity=2).run(suite)
+    sys.exit(not result.wasSuccessful())