114 lines
3.3 KiB
Python
114 lines
3.3 KiB
Python
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#
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# This file is part of pyasn1-modules software.
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#
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# Created by Russ Housley with assistance from asn1ate v.0.6.0.
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#
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# Copyright (c) 2019, Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# Using the GOST 28147-89, GOST R 34.11-94, GOST R 34.10-94, and
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# GOST R 34.10-2001 Algorithms with the CMS
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc4490.txt
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#
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from pyasn1.type import univ, char, namedtype, namedval, tag, constraint, useful
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from pyasn1_modules import rfc4357
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from pyasn1_modules import rfc5280
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# Imports from RFC 4357
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id_CryptoPro_algorithms = rfc4357.id_CryptoPro_algorithms
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id_GostR3410_94 = rfc4357.id_GostR3410_94
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id_GostR3410_2001 = rfc4357.id_GostR3410_2001
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Gost28147_89_ParamSet = rfc4357.Gost28147_89_ParamSet
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Gost28147_89_EncryptedKey = rfc4357.Gost28147_89_EncryptedKey
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GostR3410_94_PublicKeyParameters = rfc4357.GostR3410_94_PublicKeyParameters
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GostR3410_2001_PublicKeyParameters = rfc4357.GostR3410_2001_PublicKeyParameters
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# Imports from RFC 5280
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SubjectPublicKeyInfo = rfc5280.SubjectPublicKeyInfo
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# CMS/PKCS#7 key agreement algorithms & parameters
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class Gost28147_89_KeyWrapParameters(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('encryptionParamSet', Gost28147_89_ParamSet()),
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namedtype.OptionalNamedType('ukm', univ.OctetString().subtype(
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subtypeSpec=constraint.ValueSizeConstraint(8, 8)))
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)
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id_Gost28147_89_CryptoPro_KeyWrap = id_CryptoPro_algorithms + (13, 1, )
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id_Gost28147_89_None_KeyWrap = id_CryptoPro_algorithms + (13, 0, )
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id_GostR3410_2001_CryptoPro_ESDH = id_CryptoPro_algorithms + (96, )
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id_GostR3410_94_CryptoPro_ESDH = id_CryptoPro_algorithms + (97, )
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# CMS/PKCS#7 key transport algorithms & parameters
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id_GostR3410_2001_KeyTransportSMIMECapability = id_GostR3410_2001
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id_GostR3410_94_KeyTransportSMIMECapability = id_GostR3410_94
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class GostR3410_TransportParameters(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('encryptionParamSet', Gost28147_89_ParamSet()),
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namedtype.OptionalNamedType('ephemeralPublicKey',
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SubjectPublicKeyInfo().subtype(implicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 0))),
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namedtype.NamedType('ukm', univ.OctetString().subtype(
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subtypeSpec=constraint.ValueSizeConstraint(8, 8)))
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)
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class GostR3410_KeyTransport(univ.Sequence):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('sessionEncryptedKey', Gost28147_89_EncryptedKey()),
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namedtype.OptionalNamedType('transportParameters',
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GostR3410_TransportParameters().subtype(implicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatConstructed, 0)))
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)
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# GOST R 34.10-94 signature algorithm & parameters
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class GostR3410_94_Signature(univ.OctetString):
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subtypeSpec = constraint.ValueSizeConstraint(64, 64)
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# GOST R 34.10-2001 signature algorithms and parameters
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class GostR3410_2001_Signature(univ.OctetString):
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subtypeSpec = constraint.ValueSizeConstraint(64, 64)
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# Update the Algorithm Identifier map in rfc5280.py
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_algorithmIdentifierMapUpdate = {
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id_Gost28147_89_CryptoPro_KeyWrap: Gost28147_89_KeyWrapParameters(),
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id_Gost28147_89_None_KeyWrap: Gost28147_89_KeyWrapParameters(),
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}
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rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
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