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#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley with assistance from asn1ate v.0.6.0.
# Modified by Russ Housley to add maps for use with opentypes.
#
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
# Certificate Extension for CMS Content Constraints (CCC)
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc6010.txt
#
from pyasn1.type import constraint
from pyasn1.type import namedtype
from pyasn1.type import namedval
from pyasn1.type import univ
from pyasn1_modules import rfc5280
MAX = float('inf')
AttributeType = rfc5280.AttributeType
AttributeValue = rfc5280.AttributeValue
id_ct_anyContentType = univ.ObjectIdentifier('1.2.840.113549.1.9.16.1.0')
class AttrConstraint(univ.Sequence):
pass
AttrConstraint.componentType = namedtype.NamedTypes(
namedtype.NamedType('attrType', AttributeType()),
namedtype.NamedType('attrValues', univ.SetOf(
componentType=AttributeValue()).subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX)))
)
class AttrConstraintList(univ.SequenceOf):
pass
AttrConstraintList.componentType = AttrConstraint()
AttrConstraintList.subtypeSpec=constraint.ValueSizeConstraint(1, MAX)
class ContentTypeGeneration(univ.Enumerated):
pass
ContentTypeGeneration.namedValues = namedval.NamedValues(
('canSource', 0),
('cannotSource', 1)
)
class ContentTypeConstraint(univ.Sequence):
pass
ContentTypeConstraint.componentType = namedtype.NamedTypes(
namedtype.NamedType('contentType', univ.ObjectIdentifier()),
namedtype.DefaultedNamedType('canSource', ContentTypeGeneration().subtype(value='canSource')),
namedtype.OptionalNamedType('attrConstraints', AttrConstraintList())
)
# CMS Content Constraints (CCC) Extension and Object Identifier
id_pe_cmsContentConstraints = univ.ObjectIdentifier('1.3.6.1.5.5.7.1.18')
class CMSContentConstraints(univ.SequenceOf):
pass
CMSContentConstraints.componentType = ContentTypeConstraint()
CMSContentConstraints.subtypeSpec=constraint.ValueSizeConstraint(1, MAX)
# Map of Certificate Extension OIDs to Extensions
# To be added to the ones that are in rfc5280.py
_certificateExtensionsMap = {
id_pe_cmsContentConstraints: CMSContentConstraints(),
}
rfc5280.certificateExtensionsMap.update(_certificateExtensionsMap)