# # 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.decoder import decode as der_decode from pyasn1.codec.der.encoder import encode as der_encode from pyasn1_modules import pem from pyasn1_modules import rfc3114 from pyasn1_modules import rfc5035 from pyasn1_modules import rfc5083 from pyasn1_modules import rfc5084 from pyasn1_modules import rfc5280 from pyasn1_modules import rfc5652 from pyasn1_modules import rfc5755 try: import unittest2 as unittest except ImportError: import unittest class SecurityLabelTestCase(unittest.TestCase): pem_text = """\ MIITHAYJKoZIhvcNAQcCoIITDTCCEwkCAQMxDTALBglghkgBZQMEAgIwggeUBgsq hkiG9w0BCRABF6CCB4MEggd/MIIHewIBADGCAk8wggJLAgEAMDMwJjEUMBIGA1UE CgwLZXhhbXBsZS5jb20xDjAMBgNVBAMMBUFsaWNlAgkAg/ULtwvVxA4wDQYJKoZI hvcNAQEBBQAEggIAdZphtN3x8a8kZoAFY15HYRD6JyPBueRUhLbTPoOH3pZ9xeDK 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Y29tAhRRzUhAYml5hDRfA5LZmZURvdp5nTALBglghkgBZQMEAgKggeIwGgYJKoZI hvcNAQkDMQ0GCyqGSIb3DQEJEAEXMBwGCSqGSIb3DQEJBTEPFw0xOTExMDgyMDA4 MzFaMD8GCSqGSIb3DQEJBDEyBDCd5WyvIB0VdXgPBWPtI152MIJLg5o68IRimCXx bVY0j3YyAKbi0egiZ/UunkyCfv0wZQYLKoZIhvcNAQkQAgIxVjFUAgEIBgsqhkiG 9w0BCRAHAzEtMCuACyqGSIb3DQEJEAcEgRwwGgwYSFVNQU4gUkVTT1VSQ0VTIFVT RSBPTkxZExNCb2FndXMgUHJpdmFjeSBNYXJrMAoGCCqGSM49BAMDBGcwZQIwWkD7 03QoNrKL5HJnuGJqvML1KlUXZDHnFpnJ+QMzXi8gocyfpRXWm6h0NjXieE0XAjEA uuDSOoaUIz+G9aemAE0ldpo1c0avNGa7BtynUTHmwosD6Sjfj0epAg9OnMedOjbr """ 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_decode(substrate, asn1Spec=layers[next_layer]) assert not rest assert asn1Object.prettyPrint() assert der_encode(asn1Object) == substrate 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') assert catid in rfc5755.securityCategoryMap.keys() assert rfc5755.id_at_clearance in rfc5280.certificateAttributesMap.keys() assert rfc5280.id_ce_subjectDirectoryAttributes in rfc5280.certificateExtensionsMap.keys() security_label_okay = False for attr in attrs: if attr['attrType'] == rfc5035.id_aa_securityLabel: esssl, rest = der_decode(attr['attrValues'][0], asn1Spec=rfc5035.ESSSecurityLabel()) assert not rest assert esssl.prettyPrint() assert der_encode(esssl) == attr['attrValues'][0] assert esssl['security-policy-identifier'] == spid assert esssl['security-classification'] == conf for cat in esssl['security-categories']: if cat['type'] == catid: scv, rest = der_decode(cat['value'], asn1Spec=rfc3114.SecurityCategoryValues()) assert not rest assert scv.prettyPrint() assert der_encode(scv) == cat['value'] for scv_str in scv: assert 'USE ONLY' in scv_str security_label_okay = True assert 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_decode(extn['extnValue'], asn1Spec=rfc5280.certificateExtensionsMap[extn['extnID']]) assert not rest assert ev.prettyPrint() assert der_encode(ev) == extn['extnValue'] for attr in ev: if attr['type'] == rfc5755.id_at_clearance: av, rest = der_decode(attr['values'][0], asn1Spec=rfc5280.certificateAttributesMap[attr['type']]) assert av['policyId'] == spid for cat in av['securityCategories']: assert cat['type'] == catid scv, rest = der_decode(cat['value'], asn1Spec=rfc5755.securityCategoryMap[cat['type']]) assert not rest assert scv.prettyPrint() assert der_encode(scv) == cat['value'] for scv_str in scv: assert 'USE ONLY' in scv_str clearance_okay = True assert clearance_okay suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__]) if __name__ == '__main__': import sys result = unittest.TextTestRunner(verbosity=2).run(suite) sys.exit(not result.wasSuccessful())