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#
# This file is part of pyasn1-modules software.
#
# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
# License: http://pyasn1.sf.net/license.html
#
# X.509 certificate Request Message Format (CRMF) syntax
#
# ASN.1 source from:
# http://tools.ietf.org/html/rfc2511
#
# Sample captures could be obtained with OpenSSL
#
from pyasn1_modules import rfc2315
from pyasn1_modules.rfc2459 import *

MAX = float('inf')

id_pkix = univ.ObjectIdentifier('1.3.6.1.5.5.7')
id_pkip = univ.ObjectIdentifier('1.3.6.1.5.5.7.5')
id_regCtrl = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1')
id_regCtrl_regToken = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.1')
id_regCtrl_authenticator = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.2')
id_regCtrl_pkiPublicationInfo = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.3')
id_regCtrl_pkiArchiveOptions = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.4')
id_regCtrl_oldCertID = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.5')
id_regCtrl_protocolEncrKey = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.1.6')
id_regInfo = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.2')
id_regInfo_utf8Pairs = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.2.1')
id_regInfo_certReq = univ.ObjectIdentifier('1.3.6.1.5.5.7.5.2.2')


# This should be in PKIX Certificate Extensions module

class GeneralName(univ.OctetString):
    pass


# end of PKIX Certificate Extensions module

class UTF8Pairs(char.UTF8String):
    pass


class ProtocolEncrKey(SubjectPublicKeyInfo):
    pass


class CertId(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('issuer', GeneralName()),
        namedtype.NamedType('serialNumber', univ.Integer())
    )


class OldCertId(CertId):
    pass


class KeyGenParameters(univ.OctetString):
    pass


class EncryptedValue(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('intendedAlg', AlgorithmIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.OptionalNamedType('symmAlg', AlgorithmIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1))),
        namedtype.OptionalNamedType('encSymmKey', univ.BitString().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2))),
        namedtype.OptionalNamedType('keyAlg', AlgorithmIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3))),
        namedtype.OptionalNamedType('valueHint', univ.OctetString().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 4))),
        namedtype.NamedType('encValue', univ.BitString())
    )


class EncryptedKey(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('encryptedValue', EncryptedValue()),
        namedtype.NamedType('envelopedData', rfc2315.EnvelopedData().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)))
    )


class PKIArchiveOptions(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('encryptedPrivKey', EncryptedKey().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.NamedType('keyGenParameters', KeyGenParameters().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.NamedType('archiveRemGenPrivKey',
                            univ.Boolean().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
    )


class SinglePubInfo(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('pubMethod', univ.Integer(
            namedValues=namedval.NamedValues(('dontCare', 0), ('x500', 1), ('web', 2), ('ldap', 3)))),
        namedtype.OptionalNamedType('pubLocation', GeneralName())
    )


class PKIPublicationInfo(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('action',
                            univ.Integer(namedValues=namedval.NamedValues(('dontPublish', 0), ('pleasePublish', 1)))),
        namedtype.OptionalNamedType('pubInfos', univ.SequenceOf(componentType=SinglePubInfo()).subtype(
            subtypeSpec=constraint.ValueSizeConstraint(1, MAX)))
    )


class Authenticator(char.UTF8String):
    pass


class RegToken(char.UTF8String):
    pass


class SubsequentMessage(univ.Integer):
    namedValues = namedval.NamedValues(
        ('encrCert', 0),
        ('challengeResp', 1)
    )


class POPOPrivKey(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('thisMessage',
                            univ.BitString().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('subsequentMessage', SubsequentMessage().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.NamedType('dhMAC',
                            univ.BitString().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
    )


class PBMParameter(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('salt', univ.OctetString()),
        namedtype.NamedType('owf', AlgorithmIdentifier()),
        namedtype.NamedType('iterationCount', univ.Integer()),
        namedtype.NamedType('mac', AlgorithmIdentifier())
    )


class PKMACValue(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('algId', AlgorithmIdentifier()),
        namedtype.NamedType('value', univ.BitString())
    )


class POPOSigningKeyInput(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType(
            'authInfo', univ.Choice(
                componentType=namedtype.NamedTypes(
                    namedtype.NamedType(
                        'sender', GeneralName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))
                    ),
                    namedtype.NamedType('publicKeyMAC', PKMACValue())
                )
            )
        ),
        namedtype.NamedType('publicKey', SubjectPublicKeyInfo())
    )


class POPOSigningKey(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('poposkInput', POPOSigningKeyInput().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.NamedType('algorithmIdentifier', AlgorithmIdentifier()),
        namedtype.NamedType('signature', univ.BitString())
    )


class ProofOfPossession(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('raVerified',
                            univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('signature', POPOSigningKey().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1))),
        namedtype.NamedType('keyEncipherment', POPOPrivKey().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2))),
        namedtype.NamedType('keyAgreement', POPOPrivKey().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)))
    )


class Controls(univ.SequenceOf):
    componentType = AttributeTypeAndValue()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, MAX)


class OptionalValidity(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('notBefore',
                                    Time().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('notAfter',
                                    Time().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1)))
    )


class CertTemplate(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('version', Version().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('serialNumber', univ.Integer().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('signingAlg', AlgorithmIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2))),
        namedtype.OptionalNamedType('issuer', Name().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3))),
        namedtype.OptionalNamedType('validity', OptionalValidity().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 4))),
        namedtype.OptionalNamedType('subject', Name().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 5))),
        namedtype.OptionalNamedType('publicKey', SubjectPublicKeyInfo().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 6))),
        namedtype.OptionalNamedType('issuerUID', UniqueIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 7))),
        namedtype.OptionalNamedType('subjectUID', UniqueIdentifier().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 8))),
        namedtype.OptionalNamedType('extensions', Extensions().subtype(
            implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 9)))
    )


class CertRequest(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('certReqId', univ.Integer()),
        namedtype.NamedType('certTemplate', CertTemplate()),
        namedtype.OptionalNamedType('controls', Controls())
    )


class CertReq(CertRequest):
    pass


class CertReqMsg(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('certReq', CertRequest()),
        namedtype.OptionalNamedType('pop', ProofOfPossession()),
        namedtype.OptionalNamedType('regInfo', univ.SequenceOf(componentType=AttributeTypeAndValue()).subtype(
            subtypeSpec=constraint.ValueSizeConstraint(1, MAX)))
    )


class CertReqMessages(univ.SequenceOf):
    componentType = CertReqMsg()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, MAX)