Code

Code/venv/lib/python3.13/site-packages/pyasn1_modules/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)