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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_modules import pem, rfc5280, rfc8419
class Ed25519TestCase(unittest.TestCase):
alg_id_1_pem_text = "MAUGAytlcA=="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_1_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_Ed25519, asn1Object["algorithm"])
self.assertFalse(asn1Object["parameters"].isValue)
self.assertEqual(substrate, der_encoder(asn1Object))
class Ed448TestCase(unittest.TestCase):
alg_id_2_pem_text = "MAUGAytlcQ=="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_2_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_Ed448, asn1Object["algorithm"])
self.assertFalse(asn1Object["parameters"].isValue)
self.assertEqual(substrate, der_encoder(asn1Object))
class SHA512TestCase(unittest.TestCase):
alg_id_3_pem_text = "MAsGCWCGSAFlAwQCAw=="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_3_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_sha512, asn1Object["algorithm"])
self.assertFalse(asn1Object["parameters"].isValue)
self.assertEqual(substrate, der_encoder(asn1Object))
class SHAKE256TestCase(unittest.TestCase):
alg_id_4_pem_text = "MAsGCWCGSAFlAwQCDA=="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_4_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_shake256, asn1Object["algorithm"])
self.assertFalse(asn1Object["parameters"].isValue)
self.assertEqual(substrate, der_encoder(asn1Object))
class SHAKE256LENTestCase(unittest.TestCase):
alg_id_5_pem_text = "MA8GCWCGSAFlAwQCEgICAgA="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_5_pem_text)
asn1Object, rest = der_decoder(substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_shake256_len, asn1Object["algorithm"])
self.assertTrue(asn1Object["parameters"].isValue)
self.assertEqual(substrate, der_encoder(asn1Object))
param, rest = der_decoder(
asn1Object["parameters"],
asn1Spec=rfc5280.algorithmIdentifierMap[asn1Object["algorithm"]],
)
self.assertFalse(rest)
self.assertTrue(param.prettyPrint())
self.assertEqual(asn1Object["parameters"], der_encoder(param))
self.assertEqual(512, param)
def testOpenTypes(self):
substrate = pem.readBase64fromText(self.alg_id_5_pem_text)
asn1Object, rest = der_decoder(
substrate, asn1Spec=self.asn1Spec, decodeOpenTypes=True
)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8419.id_shake256_len, asn1Object["algorithm"])
self.assertEqual(512, asn1Object["parameters"])
self.assertEqual(substrate, der_encoder(asn1Object))
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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