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+#
+# This file is part of pyasn1-modules software.
+#
+# Created by Russ Housley with assistance from asn1ate v.0.6.0.
+#
+# Copyright (c) 2019, Vigil Security, LLC
+# License: http://snmplabs.com/pyasn1/license.html
+#
+# Attribute Certificate Policies Extension
+#
+# ASN.1 source from:
+# https://www.rfc-editor.org/rfc/rfc4476.txt
+#
+
+from pyasn1.type import char
+from pyasn1.type import constraint
+from pyasn1.type import namedtype
+from pyasn1.type import univ
+
+from pyasn1_modules import rfc5280
+
+MAX = float('inf')
+
+
+# Imports from RFC 5280
+
+PolicyQualifierId = rfc5280.PolicyQualifierId
+
+PolicyQualifierInfo = rfc5280.PolicyQualifierInfo
+
+UserNotice = rfc5280.UserNotice
+
+id_pkix = rfc5280.id_pkix
+
+
+# Object Identifiers
+
+id_pe = id_pkix + (1,)
+
+id_pe_acPolicies = id_pe + (15,)
+
+id_qt = id_pkix + (2,)
+
+id_qt_acps = id_qt + (4,)
+
+id_qt_acunotice = id_qt + (5,)
+
+
+# Attribute Certificate Policies Extension
+
+class ACUserNotice(UserNotice):
+ pass
+
+
+class ACPSuri(char.IA5String):
+ pass
+
+
+class AcPolicyId(univ.ObjectIdentifier):
+ pass
+
+
+class PolicyInformation(univ.Sequence):
+ componentType = namedtype.NamedTypes(
+ namedtype.NamedType('policyIdentifier', AcPolicyId()),
+ namedtype.OptionalNamedType('policyQualifiers',
+ univ.SequenceOf(componentType=PolicyQualifierInfo()).subtype(
+ subtypeSpec=constraint.ValueSizeConstraint(1, MAX)))
+ )
+
+
+class AcPoliciesSyntax(univ.SequenceOf):
+ componentType = PolicyInformation()
+ subtypeSpec = constraint.ValueSizeConstraint(1, MAX)
+
+
+# Update the policy qualifier map in rfc5280.py
+
+_policyQualifierInfoMapUpdate = {
+ id_qt_acps: ACPSuri(),
+ id_qt_acunotice: UserNotice(),
+}
+
+rfc5280.policyQualifierInfoMap.update(_policyQualifierInfoMapUpdate)
+
+
+# Update the certificate extension map in rfc5280.py
+
+_certificateExtensionsMapUpdate = {
+ id_pe_acPolicies: AcPoliciesSyntax(),
+}
+
+rfc5280.certificateExtensionsMap.update(_certificateExtensionsMapUpdate)