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# This file is being contributed to pyasn1-modules software.
#
# Created by Russ Housley with assistance from the asn1ate tool.
#
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
# PKCS #12: Personal Information Exchange Syntax v1.1
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc7292.txt
# https://www.rfc-editor.org/errata_search.php?rfc=7292
from pyasn1.type import char
from pyasn1.type import constraint
from pyasn1.type import namedtype
from pyasn1.type import namedval
from pyasn1.type import opentype
from pyasn1.type import tag
from pyasn1.type import univ
from pyasn1_modules import rfc2315
from pyasn1_modules import rfc5652
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc5958
def _OID(*components):
output = []
for x in tuple(components):
if isinstance(x, univ.ObjectIdentifier):
output.extend(list(x))
else:
output.append(int(x))
return univ.ObjectIdentifier(output)
# Initialize the maps used in PKCS#12
pkcs12BagTypeMap = { }
pkcs12CertBagMap = { }
pkcs12CRLBagMap = { }
pkcs12SecretBagMap = { }
# Imports from RFC 2315, RFC 5652, and RFC 5958
DigestInfo = rfc2315.DigestInfo
ContentInfo = rfc5652.ContentInfo
PKCS12Attribute = rfc5652.Attribute
EncryptedPrivateKeyInfo = rfc5958.EncryptedPrivateKeyInfo
PrivateKeyInfo = rfc5958.PrivateKeyInfo
# CMSSingleAttribute is the same as Attribute in RFC 5652 except the attrValues
# SET must have one and only one member
class AttributeType(univ.ObjectIdentifier):
pass
class AttributeValue(univ.Any):
pass
class AttributeValues(univ.SetOf):
pass
AttributeValues.componentType = AttributeValue()
class CMSSingleAttribute(univ.Sequence):
pass
CMSSingleAttribute.componentType = namedtype.NamedTypes(
namedtype.NamedType('attrType', AttributeType()),
namedtype.NamedType('attrValues',
AttributeValues().subtype(sizeSpec=constraint.ValueSizeConstraint(1, 1)),
openType=opentype.OpenType('attrType', rfc5652.cmsAttributesMap)
)
)
# Object identifier arcs
rsadsi = _OID(1, 2, 840, 113549)
pkcs = _OID(rsadsi, 1)
pkcs_9 = _OID(pkcs, 9)
certTypes = _OID(pkcs_9, 22)
crlTypes = _OID(pkcs_9, 23)
pkcs_12 = _OID(pkcs, 12)
# PBE Algorithm Identifiers and Parameters Structure
pkcs_12PbeIds = _OID(pkcs_12, 1)
pbeWithSHAAnd128BitRC4 = _OID(pkcs_12PbeIds, 1)
pbeWithSHAAnd40BitRC4 = _OID(pkcs_12PbeIds, 2)
pbeWithSHAAnd3_KeyTripleDES_CBC = _OID(pkcs_12PbeIds, 3)
pbeWithSHAAnd2_KeyTripleDES_CBC = _OID(pkcs_12PbeIds, 4)
pbeWithSHAAnd128BitRC2_CBC = _OID(pkcs_12PbeIds, 5)
pbeWithSHAAnd40BitRC2_CBC = _OID(pkcs_12PbeIds, 6)
class Pkcs_12PbeParams(univ.Sequence):
pass
Pkcs_12PbeParams.componentType = namedtype.NamedTypes(
namedtype.NamedType('salt', univ.OctetString()),
namedtype.NamedType('iterations', univ.Integer())
)
# Bag types
bagtypes = _OID(pkcs_12, 10, 1)
class BAG_TYPE(univ.Sequence):
pass
BAG_TYPE.componentType = namedtype.NamedTypes(
namedtype.NamedType('id', univ.ObjectIdentifier()),
namedtype.NamedType('unnamed1', univ.Any(),
openType=opentype.OpenType('attrType', pkcs12BagTypeMap)
)
)
id_keyBag = _OID(bagtypes, 1)
class KeyBag(PrivateKeyInfo):
pass
id_pkcs8ShroudedKeyBag = _OID(bagtypes, 2)
class PKCS8ShroudedKeyBag(EncryptedPrivateKeyInfo):
pass
id_certBag = _OID(bagtypes, 3)
class CertBag(univ.Sequence):
pass
CertBag.componentType = namedtype.NamedTypes(
namedtype.NamedType('certId', univ.ObjectIdentifier()),
namedtype.NamedType('certValue',
univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)),
openType=opentype.OpenType('certId', pkcs12CertBagMap)
)
)
x509Certificate = CertBag()
x509Certificate['certId'] = _OID(certTypes, 1)
x509Certificate['certValue'] = univ.OctetString()
# DER-encoded X.509 certificate stored in OCTET STRING
sdsiCertificate = CertBag()
sdsiCertificate['certId'] = _OID(certTypes, 2)
sdsiCertificate['certValue'] = char.IA5String()
# Base64-encoded SDSI certificate stored in IA5String
id_CRLBag = _OID(bagtypes, 4)
class CRLBag(univ.Sequence):
pass
CRLBag.componentType = namedtype.NamedTypes(
namedtype.NamedType('crlId', univ.ObjectIdentifier()),
namedtype.NamedType('crlValue',
univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)),
openType=opentype.OpenType('crlId', pkcs12CRLBagMap)
)
)
x509CRL = CRLBag()
x509CRL['crlId'] = _OID(crlTypes, 1)
x509CRL['crlValue'] = univ.OctetString()
# DER-encoded X.509 CRL stored in OCTET STRING
id_secretBag = _OID(bagtypes, 5)
class SecretBag(univ.Sequence):
pass
SecretBag.componentType = namedtype.NamedTypes(
namedtype.NamedType('secretTypeId', univ.ObjectIdentifier()),
namedtype.NamedType('secretValue',
univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)),
openType=opentype.OpenType('secretTypeId', pkcs12SecretBagMap)
)
)
id_safeContentsBag = _OID(bagtypes, 6)
class SafeBag(univ.Sequence):
pass
SafeBag.componentType = namedtype.NamedTypes(
namedtype.NamedType('bagId', univ.ObjectIdentifier()),
namedtype.NamedType('bagValue',
univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)),
openType=opentype.OpenType('bagId', pkcs12BagTypeMap)
),
namedtype.OptionalNamedType('bagAttributes',
univ.SetOf(componentType=PKCS12Attribute())
)
)
class SafeContents(univ.SequenceOf):
pass
SafeContents.componentType = SafeBag()
# The PFX PDU
class AuthenticatedSafe(univ.SequenceOf):
pass
AuthenticatedSafe.componentType = ContentInfo()
# Data if unencrypted
# EncryptedData if password-encrypted
# EnvelopedData if public key-encrypted
class MacData(univ.Sequence):
pass
MacData.componentType = namedtype.NamedTypes(
namedtype.NamedType('mac', DigestInfo()),
namedtype.NamedType('macSalt', univ.OctetString()),
namedtype.DefaultedNamedType('iterations', univ.Integer().subtype(value=1))
# Note: The default is for historical reasons and its use is deprecated
)
class PFX(univ.Sequence):
pass
PFX.componentType = namedtype.NamedTypes(
namedtype.NamedType('version',
univ.Integer(namedValues=namedval.NamedValues(('v3', 3)))
),
namedtype.NamedType('authSafe', ContentInfo()),
namedtype.OptionalNamedType('macData', MacData())
)
# Local key identifier (also defined as certificateAttribute in rfc2985.py)
pkcs_9_at_localKeyId = _OID(pkcs_9, 21)
localKeyId = CMSSingleAttribute()
localKeyId['attrType'] = pkcs_9_at_localKeyId
localKeyId['attrValues'][0] = univ.OctetString()
# Friendly name (also defined as certificateAttribute in rfc2985.py)
pkcs_9_ub_pkcs9String = univ.Integer(255)
pkcs_9_ub_friendlyName = univ.Integer(pkcs_9_ub_pkcs9String)
pkcs_9_at_friendlyName = _OID(pkcs_9, 20)
class FriendlyName(char.BMPString):
pass
FriendlyName.subtypeSpec = constraint.ValueSizeConstraint(1, pkcs_9_ub_friendlyName)
friendlyName = CMSSingleAttribute()
friendlyName['attrType'] = pkcs_9_at_friendlyName
friendlyName['attrValues'][0] = FriendlyName()
# Update the PKCS#12 maps
_pkcs12BagTypeMap = {
id_keyBag: KeyBag(),
id_pkcs8ShroudedKeyBag: PKCS8ShroudedKeyBag(),
id_certBag: CertBag(),
id_CRLBag: CRLBag(),
id_secretBag: SecretBag(),
id_safeContentsBag: SafeBag(),
}
pkcs12BagTypeMap.update(_pkcs12BagTypeMap)
_pkcs12CertBagMap = {
_OID(certTypes, 1): univ.OctetString(),
_OID(certTypes, 2): char.IA5String(),
}
pkcs12CertBagMap.update(_pkcs12CertBagMap)
_pkcs12CRLBagMap = {
_OID(crlTypes, 1): univ.OctetString(),
}
pkcs12CRLBagMap.update(_pkcs12CRLBagMap)
# Update the Algorithm Identifier map
_algorithmIdentifierMapUpdate = {
pbeWithSHAAnd128BitRC4: Pkcs_12PbeParams(),
pbeWithSHAAnd40BitRC4: Pkcs_12PbeParams(),
pbeWithSHAAnd3_KeyTripleDES_CBC: Pkcs_12PbeParams(),
pbeWithSHAAnd2_KeyTripleDES_CBC: Pkcs_12PbeParams(),
pbeWithSHAAnd128BitRC2_CBC: Pkcs_12PbeParams(),
pbeWithSHAAnd40BitRC2_CBC: Pkcs_12PbeParams(),
}
rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
# Update the CMS Attribute map
_cmsAttributesMapUpdate = {
pkcs_9_at_friendlyName: FriendlyName(),
pkcs_9_at_localKeyId: univ.OctetString(),
}
rfc5652.cmsAttributesMap.update(_cmsAttributesMapUpdate)
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