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#
# 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, rfc5652, rfc5751
class SignedMessageTestCase(unittest.TestCase):
pem_text = """\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==
"""
def setUp(self):
self.asn1Spec = rfc5652.ContentInfo()
def testDerCodec(self):
smimeCapMap = {
univ.ObjectIdentifier("1.2.3.4.5.6.77"): univ.OctetString(),
}
smimeCapMap.update(rfc5751.smimeCapabilityMap)
substrate = pem.readBase64fromText(self.pem_text)
asn1Object, rest = der_decoder(
substrate, asn1Spec=self.asn1Spec, decodeOpenTypes=True
)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(substrate, der_encoder(asn1Object))
self.assertEqual(rfc5652.id_signedData, asn1Object["contentType"])
self.assertEqual(1, asn1Object["content"]["version"])
for si in asn1Object["content"]["signerInfos"]:
self.assertEqual(1, si["version"])
for attr in si["signedAttrs"]:
if attr["attrType"] == rfc5751.smimeCapabilities:
for scap in attr["attrValues"][0]:
if scap["capabilityID"] in smimeCapMap.keys():
scap_p, rest = der_decoder(
scap["parameters"],
asn1Spec=smimeCapMap[scap["capabilityID"]],
)
self.assertFalse(rest)
self.assertEqual(scap["parameters"], der_encoder(scap_p))
self.assertIn("parameters", scap_p.prettyPrint())
if attr["attrType"] == rfc5751.id_aa_encrypKeyPref:
ekp_issuer_serial = attr["attrValues"][0]["issuerAndSerialNumber"]
self.assertEqual(173360179, ekp_issuer_serial["serialNumber"])
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == "__main__":
result = unittest.TextTestRunner(verbosity=2).run(suite)
sys.exit(not result.wasSuccessful())
|
