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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 import decoder as der_decoder
from pyasn1.codec.der import encoder as der_encoder
from pyasn1_modules import pem
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc8103
class CAEADChaCha20Poly1305TestCase(unittest.TestCase):
alg_id_pem_text = "MBsGCyqGSIb3DQEJEAMSBAzK/rq++s7brd7K+Ig="
def setUp(self):
self.asn1Spec = rfc5280.AlgorithmIdentifier()
def testDerCodec(self):
substrate = pem.readBase64fromText(self.alg_id_pem_text)
asn1Object, rest = der_decoder.decode(
substrate, asn1Spec=self.asn1Spec)
self.assertFalse(rest)
self.assertTrue(asn1Object.prettyPrint())
self.assertEqual(rfc8103.id_alg_AEADChaCha20Poly1305, asn1Object[0])
param, rest = der_decoder.decode(
asn1Object[1], rfc8103.AEADChaCha20Poly1305Nonce())
self.assertFalse(rest)
self.assertTrue(param.prettyPrint())
self.assertEqual(
rfc8103.AEADChaCha20Poly1305Nonce(value='\xca\xfe\xba\xbe\xfa'
'\xce\xdb\xad\xde\xca'
'\xf8\x88'),
param)
self.assertEqual(substrate, der_encoder.encode(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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