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# This file is being contributed to pyasn1-modules software.
#
# Created by Russ Housley.
#
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
# Traceable Anonymous Certificate
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc5480.txt
from pyasn1.type import namedtype
from pyasn1.type import univ
from pyasn1.type import useful
from pyasn1_modules import rfc5652
# Imports from RFC 5652
ContentInfo = rfc5652.ContentInfo
EncapsulatedContentInfo = rfc5652.EncapsulatedContentInfo
id_data = rfc5652.id_data
# Object Identifiers
id_KISA = univ.ObjectIdentifier((1, 2, 410, 200004,))
id_npki = id_KISA + (10,)
id_attribute = id_npki + (1,)
id_kisa_tac = id_attribute + (1,)
id_kisa_tac_token = id_kisa_tac + (1,)
id_kisa_tac_tokenandblindbash = id_kisa_tac + (2,)
id_kisa_tac_tokenandpartially = id_kisa_tac + (3,)
# Structures for Traceable Anonymous Certificate (TAC)
class UserKey(univ.OctetString):
pass
class Timeout(useful.GeneralizedTime):
pass
class BlinedCertificateHash(univ.OctetString):
pass
class PartiallySignedCertificateHash(univ.OctetString):
pass
class Token(ContentInfo):
pass
class TokenandBlindHash(ContentInfo):
pass
class TokenandPartiallySignedCertificateHash(ContentInfo):
pass
# Added to the module in RFC 5636 for the CMS Content Type Map
class TACToken(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('userKey', UserKey()),
namedtype.NamedType('timeout', Timeout())
)
class TACTokenandBlindHash(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('token', Token()),
namedtype.NamedType('blinded', BlinedCertificateHash())
)
class TACTokenandPartiallySignedCertificateHash(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('token', Token()),
namedtype.NamedType('partially', PartiallySignedCertificateHash())
)
# Add to the CMS Content Type Map in rfc5752.py
_cmsContentTypesMapUpdate = {
id_kisa_tac_token: TACToken(),
id_kisa_tac_tokenandblindbash: TACTokenandBlindHash(),
id_kisa_tac_tokenandpartially: TACTokenandPartiallySignedCertificateHash(),
}
rfc5652.cmsContentTypesMap.update(_cmsContentTypesMapUpdate)
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