rfc5914.py
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# This file is being contributed to 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
#
# Trust Anchor Format
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc5914.txt
from pyasn1.type import char
from pyasn1.type import constraint
from pyasn1.type import namedtype
from pyasn1.type import namedval
from pyasn1.type import tag
from pyasn1.type import univ
from pyasn1_modules import rfc5280
MAX = float('inf')
Certificate = rfc5280.Certificate
Name = rfc5280.Name
Extensions = rfc5280.Extensions
SubjectPublicKeyInfo = rfc5280.SubjectPublicKeyInfo
TBSCertificate = rfc5280.TBSCertificate
CertificatePolicies = rfc5280.CertificatePolicies
KeyIdentifier = rfc5280.KeyIdentifier
NameConstraints = rfc5280.NameConstraints
class CertPolicyFlags(univ.BitString):
pass
CertPolicyFlags.namedValues = namedval.NamedValues(
('inhibitPolicyMapping', 0),
('requireExplicitPolicy', 1),
('inhibitAnyPolicy', 2)
)
class CertPathControls(univ.Sequence):
pass
CertPathControls.componentType = namedtype.NamedTypes(
namedtype.NamedType('taName', Name()),
namedtype.OptionalNamedType('certificate', Certificate().subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
namedtype.OptionalNamedType('policySet', CertificatePolicies().subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
namedtype.OptionalNamedType('policyFlags', CertPolicyFlags().subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
namedtype.OptionalNamedType('nameConstr', NameConstraints().subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3))),
namedtype.OptionalNamedType('pathLenConstraint', univ.Integer().subtype(
subtypeSpec=constraint.ValueRangeConstraint(0, MAX)).subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 4)))
)
class TrustAnchorTitle(char.UTF8String):
pass
TrustAnchorTitle.subtypeSpec = constraint.ValueSizeConstraint(1, 64)
class TrustAnchorInfoVersion(univ.Integer):
pass
TrustAnchorInfoVersion.namedValues = namedval.NamedValues(
('v1', 1)
)
class TrustAnchorInfo(univ.Sequence):
pass
TrustAnchorInfo.componentType = namedtype.NamedTypes(
namedtype.DefaultedNamedType('version', TrustAnchorInfoVersion().subtype(value='v1')),
namedtype.NamedType('pubKey', SubjectPublicKeyInfo()),
namedtype.NamedType('keyId', KeyIdentifier()),
namedtype.OptionalNamedType('taTitle', TrustAnchorTitle()),
namedtype.OptionalNamedType('certPath', CertPathControls()),
namedtype.OptionalNamedType('exts', Extensions().subtype(explicitTag=tag.Tag(
tag.tagClassContext, tag.tagFormatSimple, 1))),
namedtype.OptionalNamedType('taTitleLangTag', char.UTF8String().subtype(
implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
)
class TrustAnchorChoice(univ.Choice):
pass
TrustAnchorChoice.componentType = namedtype.NamedTypes(
namedtype.NamedType('certificate', Certificate()),
namedtype.NamedType('tbsCert', TBSCertificate().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
namedtype.NamedType('taInfo', TrustAnchorInfo().subtype(
explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)))
)
id_ct_trustAnchorList = univ.ObjectIdentifier('1.2.840.113549.1.9.16.1.34')
class TrustAnchorList(univ.SequenceOf):
pass
TrustAnchorList.componentType = TrustAnchorChoice()
TrustAnchorList.subtypeSpec=constraint.ValueSizeConstraint(1, MAX)