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#
# 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
import unittest
from pyasn1.codec.der.decoder import decode as der_decoder
from pyasn1.codec.der.encoder import encode as der_encoder
from pyasn1_modules import pem
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc5958
from pyasn1_modules import rfc7914
from pyasn1_modules import rfc8018
# From RFC 7914, Section 13
class MultiprimeRSAPrivateKeyTestCase(unittest.TestCase):
pem_text = """\
MIHiME0GCSqGSIb3DQEFDTBAMB8GCSsGAQQB2kcECzASBAVNb3VzZQIDEAAAAgEI
AgEBMB0GCWCGSAFlAwQBKgQQyYmguHMsOwzGMPoyObk/JgSBkJb47EWd5iAqJlyy
+ni5ftd6gZgOPaLQClL7mEZc2KQay0VhjZm/7MbBUNbqOAXNM6OGebXxVp6sHUAL
iBGY/Dls7B1TsWeGObE0sS1MXEpuREuloZjcsNVcNXWPlLdZtkSH6uwWzR0PyG/Z
+ZXfNodZtd/voKlvLOw5B3opGIFaLkbtLZQwMiGtl42AS89lZg==
"""
def setUp(self):
self.asn1Spec = rfc5958.EncryptedPrivateKeyInfo()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(substrate, der_encoder(asn1Object))
ea = asn1Object['encryptionAlgorithm']
self.assertEqual(rfc8018.id_PBES2, ea['algorithm'])
self.assertIn(ea['algorithm'], rfc5280.algorithmIdentifierMap)
params, rest = der_decoder(
ea['parameters'],
asn1Spec=rfc5280.algorithmIdentifierMap[ea['algorithm']])
self.assertFalse(rest)
self.assertTrue(params.prettyPrint())
self.assertEqual(ea['parameters'], der_encoder(params))
kdf = params['keyDerivationFunc']
self.assertEqual(rfc7914.id_scrypt, kdf['algorithm'])
self.assertIn(kdf['algorithm'], rfc5280.algorithmIdentifierMap)
kdfp, rest = der_decoder(
kdf['parameters'],
asn1Spec=rfc5280.algorithmIdentifierMap[kdf['algorithm']])
self.assertFalse(rest)
self.assertTrue(kdfp.prettyPrint())
self.assertTrue(kdf['parameters'], der_encoder(kdfp))
self.assertEqual(1048576, kdfp['costParameter'])
def testOpenTypes(self):
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))
ea = asn1Object['encryptionAlgorithm']
self.assertEqual(rfc8018.id_PBES2, ea['algorithm'])
params = asn1Object['encryptionAlgorithm']['parameters']
self.assertEqual(
rfc7914.id_scrypt, params['keyDerivationFunc']['algorithm'])
kdfp = params['keyDerivationFunc']['parameters']
self.assertEqual(1048576, kdfp['costParameter'])
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == '__main__':
result = unittest.TextTestRunner(verbosity=2).run(suite)
sys.exit(not result.wasSuccessful())
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