| # |
| # 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 rfc3114 |
| from pyasn1_modules import rfc5035 |
| from pyasn1_modules import rfc5083 |
| from pyasn1_modules import rfc5280 |
| from pyasn1_modules import rfc5652 |
| from pyasn1_modules import rfc5755 |
| |
| |
| class SecurityLabelTestCase(unittest.TestCase): |
| pem_text = """\ |
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| """ |
| |
| def testDerCodec(self): |
| layers = { } |
| layers.update(rfc5652.cmsContentTypesMap) |
| |
| getNextLayer = { |
| rfc5652.id_ct_contentInfo: lambda x: x['contentType'], |
| rfc5652.id_signedData: lambda x: x['encapContentInfo']['eContentType'], |
| rfc5083.id_ct_authEnvelopedData: lambda x: None |
| } |
| |
| getNextSubstrate = { |
| rfc5652.id_ct_contentInfo: lambda x: x['content'], |
| rfc5652.id_signedData: lambda x: x['encapContentInfo']['eContent'], |
| rfc5083.id_ct_authEnvelopedData: lambda x: None |
| } |
| |
| substrate = pem.readBase64fromText(self.pem_text) |
| |
| next_layer = rfc5652.id_ct_contentInfo |
| while next_layer: |
| asn1Object, rest = der_decoder(substrate, asn1Spec=layers[next_layer]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(asn1Object.prettyPrint()) |
| self.assertEqual(substrate, der_encoder(asn1Object)) |
| |
| if next_layer == rfc5652.id_signedData: |
| attrs = asn1Object['signerInfos'][0]['signedAttrs'] |
| certs = asn1Object['certificates'] |
| |
| substrate = getNextSubstrate[next_layer](asn1Object) |
| next_layer = getNextLayer[next_layer](asn1Object) |
| |
| spid = rfc3114.id_tsp_TEST_Whirlpool |
| catid = rfc3114.id_tsp_TEST_Whirlpool_Categories |
| conf = rfc3114.Whirlpool_SecurityClassification(value='whirlpool-confidential') |
| |
| self.assertIn(catid, rfc5755.securityCategoryMap) |
| self.assertIn(rfc5755.id_at_clearance, rfc5280.certificateAttributesMap) |
| self.assertIn(rfc5280.id_ce_subjectDirectoryAttributes, rfc5280.certificateExtensionsMap) |
| |
| security_label_okay = False |
| |
| for attr in attrs: |
| if attr['attrType'] == rfc5035.id_aa_securityLabel: |
| esssl, rest = der_decoder( |
| attr['attrValues'][0], asn1Spec=rfc5035.ESSSecurityLabel()) |
| |
| self.assertFalse(rest) |
| self.assertTrue(esssl.prettyPrint()) |
| self.assertEqual(attr['attrValues'][0], der_encoder(esssl)) |
| |
| self.assertEqual(spid, esssl['security-policy-identifier']) |
| self.assertEqual(conf, esssl['security-classification']) |
| |
| for cat in esssl['security-categories']: |
| if cat['type'] == catid: |
| scv, rest = der_decoder( |
| cat['value'], asn1Spec=rfc3114.SecurityCategoryValues()) |
| |
| self.assertFalse(rest) |
| self.assertTrue(scv.prettyPrint()) |
| self.assertEqual(cat['value'], der_encoder(scv)) |
| |
| for scv_str in scv: |
| self.assertIn('USE ONLY', scv_str) |
| security_label_okay = True |
| |
| self.assertTrue(security_label_okay) |
| |
| clearance_okay = False |
| for cert_choice in certs: |
| for extn in cert_choice['certificate']['tbsCertificate']['extensions']: |
| if extn['extnID'] == rfc5280.id_ce_subjectDirectoryAttributes: |
| ev, rest = der_decoder( |
| extn['extnValue'], |
| asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(ev.prettyPrint()) |
| self.assertEqual(extn['extnValue'], der_encoder(ev)) |
| |
| for attr in ev: |
| |
| if attr['type'] == rfc5755.id_at_clearance: |
| av, rest = der_decoder( |
| attr['values'][0], |
| asn1Spec=rfc5280.certificateAttributesMap[attr['type']]) |
| |
| self.assertEqual(spid, av['policyId']) |
| |
| for cat in av['securityCategories']: |
| |
| self.assertEqual(catid, cat['type']) |
| |
| scv, rest = der_decoder( |
| cat['value'], |
| asn1Spec=rfc5755.securityCategoryMap[cat['type']]) |
| |
| self.assertFalse(rest) |
| self.assertTrue(scv.prettyPrint()) |
| self.assertEqual(cat['value'], der_encoder(scv)) |
| |
| for scv_str in scv: |
| self.assertIn('USE ONLY', scv_str) |
| clearance_okay = True |
| |
| self.assertTrue(clearance_okay) |
| |
| |
| suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) |
| |
| if __name__ == '__main__': |
| result = unittest.TextTestRunner(verbosity=2).run(suite) |
| sys.exit(not result.wasSuccessful()) |
