| # |
| # 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 |
| |
| from pyasn1.codec.der import decoder as der_decoder |
| from pyasn1.codec.der import encoder as der_encoder |
| |
| from pyasn1.type import univ |
| |
| from pyasn1_modules import pem |
| from pyasn1_modules import rfc5280 |
| from pyasn1_modules import rfc4055 |
| |
| try: |
| import unittest2 as unittest |
| except ImportError: |
| import unittest |
| |
| |
| class PSSDefautTestCase(unittest.TestCase): |
| pss_default_pem_text = "MAsGCSqGSIb3DQEBCg==" |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.pss_default_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert asn1Object[0] == rfc4055.id_RSASSA_PSS |
| assert der_encoder.encode(asn1Object) == substrate |
| assert substrate == der_encoder.encode(asn1Object) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.pss_default_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, |
| asn1Spec=self.asn1Spec, |
| decodeOpenTypes=True) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert der_encoder.encode(asn1Object) == substrate |
| assert not asn1Object['parameters'].hasValue() |
| |
| |
| class PSSSHA512TestCase(unittest.TestCase): |
| pss_sha512_pem_text = "MDwGCSqGSIb3DQEBCjAvoA8wDQYJYIZIAWUDBAIDBQChHDAaBgkqhkiG9w0BAQgwDQYJYIZIAWUDBAIDBQA=" |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.pss_sha512_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert asn1Object[0] == rfc4055.id_RSASSA_PSS |
| assert der_encoder.encode(asn1Object) == substrate |
| assert substrate == der_encoder.encode(asn1Object) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.pss_sha512_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, |
| asn1Spec=self.asn1Spec, |
| decodeOpenTypes=True) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert der_encoder.encode(asn1Object) == substrate |
| assert asn1Object['parameters'].hasValue() |
| assert asn1Object['parameters']['saltLength'] == 20 |
| |
| |
| class OAEPDefautTestCase(unittest.TestCase): |
| oaep_default_pem_text = "MAsGCSqGSIb3DQEBBw==" |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.oaep_default_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert asn1Object[0] == rfc4055.id_RSAES_OAEP |
| assert der_encoder.encode(asn1Object) == substrate |
| assert substrate == der_encoder.encode(asn1Object) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.oaep_default_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, |
| asn1Spec=self.asn1Spec, |
| decodeOpenTypes=True) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert der_encoder.encode(asn1Object) == substrate |
| assert not asn1Object['parameters'].hasValue() |
| |
| |
| class OAEPSHA256TestCase(unittest.TestCase): |
| oaep_sha256_pem_text = "MDwGCSqGSIb3DQEBBzAvoA8wDQYJYIZIAWUDBAIBBQChHDAaBgkqhkiG9w0BAQgwDQYJYIZIAWUDBAIBBQA=" |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.oaep_sha256_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert asn1Object[0] == rfc4055.id_RSAES_OAEP |
| assert der_encoder.encode(asn1Object) == substrate |
| assert substrate == der_encoder.encode(asn1Object) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.oaep_sha256_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, |
| asn1Spec=self.asn1Spec, |
| decodeOpenTypes=True) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert der_encoder.encode(asn1Object) == substrate |
| assert asn1Object['parameters'].hasValue() |
| oaep_p = asn1Object['parameters'] |
| assert oaep_p['hashFunc']['parameters'] == univ.Null("") |
| assert oaep_p['maskGenFunc']['parameters']['parameters'] == univ.Null("") |
| |
| |
| class OAEPFullTestCase(unittest.TestCase): |
| oaep_full_pem_text = "MFMGCSqGSIb3DQEBBzBGoA8wDQYJYIZIAWUDBAICBQChHDAaBgkqhkiG9w0BAQgwDQYJYIZIAWUDBAICBQCiFTATBgkqhkiG9w0BAQkEBmZvb2Jhcg==" |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| def testDerCodec(self): |
| substrate = pem.readBase64fromText(self.oaep_full_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, asn1Spec=self.asn1Spec) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert asn1Object[0] == rfc4055.id_RSAES_OAEP |
| assert der_encoder.encode(asn1Object) == substrate |
| assert substrate == der_encoder.encode(asn1Object) |
| |
| def testOpenTypes(self): |
| substrate = pem.readBase64fromText(self.oaep_full_pem_text) |
| asn1Object, rest = der_decoder.decode(substrate, |
| asn1Spec=self.asn1Spec, |
| decodeOpenTypes=True) |
| assert not rest |
| assert asn1Object.prettyPrint() |
| assert der_encoder.encode(asn1Object) == substrate |
| assert asn1Object['parameters'].hasValue() |
| oaep_p = asn1Object['parameters'] |
| assert oaep_p['hashFunc']['parameters'] == univ.Null("") |
| assert oaep_p['maskGenFunc']['parameters']['parameters'] == univ.Null("") |
| assert oaep_p['pSourceFunc']['parameters'] == univ.OctetString(value='foobar') |
| |
| |
| suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) |
| |
| if __name__ == '__main__': |
| import sys |
| |
| result = unittest.TextTestRunner(verbosity=2).run(suite) |
| sys.exit(not result.wasSuccessful()) |