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#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley.
#
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
# SEED Encryption Algorithm in CMS
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc4010.txt
#
from pyasn1.type import constraint
from pyasn1.type import univ
from pyasn1_modules import rfc5280
from pyasn1_modules import rfc5751
id_seedCBC = univ.ObjectIdentifier('1.2.410.200004.1.4')
id_npki_app_cmsSeed_wrap = univ.ObjectIdentifier('1.2.410.200004.7.1.1.1')
class SeedIV(univ.OctetString):
subtypeSpec = constraint.ValueSizeConstraint(16, 16)
class SeedCBCParameter(SeedIV):
pass
class SeedSMimeCapability(univ.Null):
pass
# Update the Algorithm Identifier map in rfc5280.py.
_algorithmIdentifierMapUpdate = {
id_seedCBC: SeedCBCParameter(),
id_npki_app_cmsSeed_wrap: univ.Null(""),
}
rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
# Update the SMIMECapabilities Attribute map in rfc5751.py
_smimeCapabilityMapUpdate = {
id_seedCBC: SeedSMimeCapability(),
id_npki_app_cmsSeed_wrap: SeedSMimeCapability(),
}
rfc5751.smimeCapabilityMap.update(_smimeCapabilityMapUpdate)