| # |
| # 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 rfc5990 |
| |
| |
| class RSAKEMTestCase(unittest.TestCase): |
| pem_text = """\ |
| MEcGCyqGSIb3DQEJEAMOMDgwKQYHKIGMcQICBDAeMBkGCiuBBRCGSAksAQIwCwYJ |
| YIZIAWUDBAIBAgEQMAsGCWCGSAFlAwQBBQ== |
| """ |
| |
| def setUp(self): |
| self.asn1Spec = rfc5280.AlgorithmIdentifier() |
| |
| 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)) |
| self.assertEqual(rfc5990.id_rsa_kem, asn1Object['algorithm']) |
| |
| rsa_kem_p, rest = der_decoder( |
| asn1Object['parameters'], |
| asn1Spec=rfc5280.algorithmIdentifierMap[rfc5990.id_rsa_kem]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(rsa_kem_p.prettyPrint()) |
| self.assertEqual(asn1Object['parameters'], der_encoder(rsa_kem_p)) |
| self.assertEqual(rfc5990.id_kem_rsa, rsa_kem_p['kem']['algorithm']) |
| |
| kem_rsa_p, rest = der_decoder( |
| rsa_kem_p['kem']['parameters'], |
| asn1Spec=rfc5280.algorithmIdentifierMap[rfc5990.id_kem_rsa]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(kem_rsa_p.prettyPrint()) |
| self.assertEqual( |
| rsa_kem_p['kem']['parameters'], der_encoder(kem_rsa_p)) |
| self.assertEqual(16, kem_rsa_p['keyLength']) |
| self.assertEqual( |
| rfc5990.id_kdf_kdf3, kem_rsa_p['keyDerivationFunction']['algorithm']) |
| |
| kdf_p, rest = der_decoder( |
| kem_rsa_p['keyDerivationFunction']['parameters'], |
| asn1Spec=rfc5280.algorithmIdentifierMap[rfc5990.id_kdf_kdf3]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(kdf_p.prettyPrint()) |
| self.assertEqual( |
| kem_rsa_p['keyDerivationFunction']['parameters'], |
| der_encoder(kdf_p)) |
| |
| 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)) |
| self.assertEqual(rfc5990.id_rsa_kem, asn1Object['algorithm']) |
| self.assertEqual( |
| rfc5990.id_kem_rsa, asn1Object['parameters']['kem']['algorithm']) |
| self.assertEqual( |
| 16, asn1Object['parameters']['kem']['parameters']['keyLength']) |
| |
| |
| suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) |
| |
| if __name__ == '__main__': |
| result = unittest.TextTestRunner(verbosity=2).run(suite) |
| sys.exit(not result.wasSuccessful()) |
