#
# X.509 message syntax
#
# ASN.1 source from:
# http://www.trl.ibm.com/projects/xml/xss4j/data/asn1/grammars/x509.asn
# http://www.ietf.org/rfc/rfc2459.txt
#
# Sample captures from:
# http://wiki.wireshark.org/SampleCaptures/
#
from pyasn1.type import tag,namedtype,namedval,univ,constraint,char,useful

MAX = 64  # XXX ?

#
# PKIX1Explicit88
#

# Upper Bounds
ub_name = univ.Integer(32768)
ub_common_name = univ.Integer(64)
ub_locality_name = univ.Integer(128)
ub_state_name = univ.Integer(128)
ub_organization_name = univ.Integer(64)
ub_organizational_unit_name = univ.Integer(64)
ub_title = univ.Integer(64)
ub_match = univ.Integer(128)
ub_emailaddress_length = univ.Integer(128)
ub_common_name_length = univ.Integer(64)
ub_country_name_alpha_length = univ.Integer(2)
ub_country_name_numeric_length = univ.Integer(3)
ub_domain_defined_attributes = univ.Integer(4)
ub_domain_defined_attribute_type_length = univ.Integer(8)
ub_domain_defined_attribute_value_length = univ.Integer(128)
ub_domain_name_length = univ.Integer(16)
ub_extension_attributes = univ.Integer(256)
ub_e163_4_number_length = univ.Integer(15)
ub_e163_4_sub_address_length = univ.Integer(40)
ub_generation_qualifier_length = univ.Integer(3)
ub_given_name_length = univ.Integer(16)
ub_initials_length = univ.Integer(5)
ub_integer_options = univ.Integer(256)
ub_numeric_user_id_length = univ.Integer(32)
ub_organization_name_length = univ.Integer(64)
ub_organizational_unit_name_length = univ.Integer(32)
ub_organizational_units = univ.Integer(4)
ub_pds_name_length = univ.Integer(16)
ub_pds_parameter_length = univ.Integer(30)
ub_pds_physical_address_lines = univ.Integer(6)
ub_postal_code_length = univ.Integer(16)
ub_surname_length = univ.Integer(40)
ub_terminal_id_length = univ.Integer(24)
ub_unformatted_address_length = univ.Integer(180)
ub_x121_address_length = univ.Integer(16)

class UniversalString(char.UniversalString): pass
class BMPString(char.BMPString): pass
class UTF8String(char.UTF8String): pass

id_pkix = univ.ObjectIdentifier('1.3.6.1.5.5.7')
id_pe = univ.ObjectIdentifier('1.3.6.1.5.5.7.1')
id_qt = univ.ObjectIdentifier('1.3.6.1.5.5.7.2')
id_kp = univ.ObjectIdentifier('1.3.6.1.5.5.7.3')
id_ad = univ.ObjectIdentifier('1.3.6.1.5.5.7.48')

id_qt_cps = univ.ObjectIdentifier('1.3.6.1.5.5.7.2.1')
id_qt_unotice = univ.ObjectIdentifier('1.3.6.1.5.5.7.2.2')

id_ad_ocsp = univ.ObjectIdentifier('1.3.6.1.5.5.7.48.1')
id_ad_caIssuers = univ.ObjectIdentifier('1.3.6.1.5.5.7.48.2')

class AttributeValue(univ.Any): pass

class AttributeType(univ.ObjectIdentifier): pass

class AttributeTypeAndValue(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('type', AttributeType()),
        namedtype.NamedType('value', AttributeValue())
        )

class Attribute(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('type', AttributeType()),
        namedtype.NamedType('vals', univ.SetOf(componentType=AttributeValue()))
        )

id_at = univ.ObjectIdentifier('2.5.4')
id_at_name = univ.ObjectIdentifier('2.5.4.41')
id_at_sutname = univ.ObjectIdentifier('2.5.4.4')
id_at_givenName = univ.ObjectIdentifier('2.5.4.42')
id_at_initials = univ.ObjectIdentifier('2.5.4.43')
id_at_generationQualifier = univ.ObjectIdentifier('2.5.4.44')

class X520name(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_name)))
    )

id_at_commonName = univ.ObjectIdentifier('2.5.4.3')

class X520CommonName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_common_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_common_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_common_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_common_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_common_name)))
    )

id_at_localityName = univ.ObjectIdentifier('2.5.4.7')

class X520LocalityName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_locality_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_locality_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_locality_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_locality_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_locality_name)))
    )

id_at_stateOrProvinceName = univ.ObjectIdentifier('2.5.4.8')

class X520StateOrProvinceName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_state_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_state_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_state_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_state_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_state_name)))
    )

id_at_organizationName = univ.ObjectIdentifier('2.5.4.10')

class X520OrganizationName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organization_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organization_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organization_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organization_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organization_name)))
    )

id_at_organizationalUnitName = univ.ObjectIdentifier('2.5.4.11')

class X520OrganizationalUnitName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organizational_unit_name))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organizational_unit_name))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organizational_unit_name))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organizational_unit_name))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_organizational_unit_name)))
    )

id_at_title = univ.ObjectIdentifier('2.5.4.12')

class X520Title(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_title))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_title))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_title))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_title))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_title)))
    )

id_at_dnQualifier = univ.ObjectIdentifier('2.5.4.46')

class X520dnQualifier(char.PrintableString): pass

id_at_countryName = univ.ObjectIdentifier('2.5.4.6')

class X520countryName(char.PrintableString):
    subtypeSpec = char.PrintableString.subtypeSpec + constraint.ValueSizeConstraint(2, 2)

pkcs_9 = univ.ObjectIdentifier('1.2.840.113549.1.9')

emailAddress = univ.ObjectIdentifier('1.2.840.113549.1.9.1')

class Pkcs9email(char.IA5String):
    subtypeSpec = char.IA5String.subtypeSpec + constraint.ValueSizeConstraint(1, ub_emailaddress_length)

# ----

class DSAPrivateKey(univ.Sequence):
    """PKIX compliant DSA private key structure"""
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('version', univ.Integer(namedValues=namedval.NamedValues(('v1', 0)))),
        namedtype.NamedType('p', univ.Integer()),
        namedtype.NamedType('q', univ.Integer()),
        namedtype.NamedType('g', univ.Integer()),
        namedtype.NamedType('public', univ.Integer()),
        namedtype.NamedType('private', univ.Integer())
        )

# ----

class RelativeDistinguishedName(univ.SetOf):
    componentType = AttributeTypeAndValue()

class RDNSequence(univ.SequenceOf):
    componentType = RelativeDistinguishedName()

class Name(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('', RDNSequence())
        )

class DirectoryString(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('teletexString', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
        namedtype.NamedType('printableString', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
        namedtype.NamedType('universalString', char.UniversalString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
        namedtype.NamedType('ia5String', char.IA5String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX))) # hm, this should not be here!? XXX
        )

# certificate and CRL specific structures begin here
                          
class AlgorithmIdentifier(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('algorithm', univ.ObjectIdentifier()),
        namedtype.OptionalNamedType('parameters', univ.Any())
        )

class Extension(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('extnID', univ.ObjectIdentifier()),
        namedtype.DefaultedNamedType('critical', univ.Boolean('False')),
        namedtype.NamedType('extnValue', univ.Any())
        )

class Extensions(univ.SequenceOf):
    componentType = Extension()
    sizeSpec = univ.SequenceOf.sizeSpec + constraint.ValueSizeConstraint(1, MAX)

class SubjectPublicKeyInfo(univ.Sequence):
     componentType = namedtype.NamedTypes(
         namedtype.NamedType('algorithm', AlgorithmIdentifier()),
         namedtype.NamedType('subjectPublicKey', univ.BitString())
         )

class UniqueIdentifier(univ.BitString): pass

class Time(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('utcTime', useful.UTCTime()),
        namedtype.NamedType('generalTime', useful.GeneralizedTime())
        )
    
class Validity(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('notBefore', Time()),
        namedtype.NamedType('notAfter', Time())
        )

class CertificateSerialNumber(univ.Integer): pass

class Version(univ.Integer):
    namedValues = namedval.NamedValues(
        ('v1', 0), ('v2', 1), ('v3', 2)
        )

class TBSCertificate(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.DefaultedNamedType('version', Version('v1').subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('serialNumber', CertificateSerialNumber()),
        namedtype.NamedType('signature', AlgorithmIdentifier()),
        namedtype.NamedType('issuer', Name()),
        namedtype.NamedType('validity', Validity()),
        namedtype.NamedType('subject', Name()),
        namedtype.NamedType('subjectPublicKeyInfo', SubjectPublicKeyInfo()),
        namedtype.OptionalNamedType('issuerUniqueID', UniqueIdentifier().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('subjectUniqueID', UniqueIdentifier().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('extensions', Extensions().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3)))
        )

class Certificate(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('tbsCertificate', TBSCertificate()),
        namedtype.NamedType('signatureAlgorithm', AlgorithmIdentifier()),
        namedtype.NamedType('signatureValue', univ.BitString())
        )

# CRL structures

class RevokedCertificate(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('userCertificate', CertificateSerialNumber()),
        namedtype.NamedType('revocationDate', Time()),
        namedtype.OptionalNamedType('crlEntryExtensions', Extensions())
    )
 
class TBSCertList(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('version', Version()),
        namedtype.NamedType('signature', AlgorithmIdentifier()),
        namedtype.NamedType('issuer', Name()),
        namedtype.NamedType('thisUpdate', Time()),
        namedtype.OptionalNamedType('nextUpdate', Time()),
        namedtype.OptionalNamedType('revokedCertificates', univ.SequenceOf(componentType=RevokedCertificate())),
        namedtype.OptionalNamedType('crlExtensions', Extensions().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)))
    )

class CertificateList(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('tbsCertList', TBSCertList()),
        namedtype.NamedType('signatureAlgorithm', AlgorithmIdentifier()),
        namedtype.NamedType('signature', univ.BitString())
    )

# Algorithm OIDs and parameter structures

pkcs_1 = univ.ObjectIdentifier('1.2.840.113549.1.1')
rsaEncryption = univ.ObjectIdentifier('1.2.840.113549.1.1.1')
md2WithRSAEncryption = univ.ObjectIdentifier('1.2.840.113549.1.1.2')
md5WithRSAEncryption = univ.ObjectIdentifier('1.2.840.113549.1.1.4')
sha1WithRSAEncryption = univ.ObjectIdentifier('1.2.840.113549.1.1.5')
id_dsa_with_sha1 = univ.ObjectIdentifier('1.2.840.10040.4.3')

class Dss_Sig_Value(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('r', univ.Integer()),
        namedtype.NamedType('s', univ.Integer())
    )

dhpublicnumber = univ.ObjectIdentifier('1.2.840.10046.2.1')

class ValidationParms(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('seed', univ.BitString()),
        namedtype.NamedType('pgenCounter', univ.Integer())
    )

class DomainParameters(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('p', univ.Integer()),
        namedtype.NamedType('g', univ.Integer()),
        namedtype.NamedType('q', univ.Integer()),
        namedtype.NamedType('j', univ.Integer()),
        namedtype.OptionalNamedType('validationParms', ValidationParms())
    )

id_dsa = univ.ObjectIdentifier('1.2.840.10040.4.1')

class Dss_Parms(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('p', univ.Integer()),
        namedtype.NamedType('q', univ.Integer()),
        namedtype.NamedType('g', univ.Integer())
    )

# x400 address syntax starts here

teletex_domain_defined_attributes = univ.Integer(6)

class TeletexDomainDefinedAttribute(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('type', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_domain_defined_attribute_type_length))),
        namedtype.NamedType('value', char.TeletexString())
    )

class TeletexDomainDefinedAttributes(univ.SequenceOf):
    componentType = TeletexDomainDefinedAttribute()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_domain_defined_attributes)

terminal_type = univ.Integer(23)

class TerminalType(univ.Integer):
    subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueSizeConstraint(0, ub_integer_options)
    namedValues = namedval.NamedValues(
        ('telex', 3),
        ('teletelex', 4),
        ('g3-facsimile', 5),
        ('g4-facsimile', 6),
        ('ia5-terminal', 7),
        ('videotex', 8)
    )

class PresentationAddress(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('pSelector', univ.OctetString().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('sSelector', univ.OctetString().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('tSelector', univ.OctetString().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('nAddresses', univ.SetOf(componentType=univ.OctetString()).subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3), subtypeSpec=constraint.ValueSizeConstraint(1, MAX))),
    )

extended_network_address = univ.Integer(22)

class E163_4_address(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('number', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_e163_4_number_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('sub-address', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_e163_4_sub_address_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1)))
    )

class ExtendedNetworkAddress(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('e163-4-address', E163_4_address()),
        namedtype.NamedType('psap-address', PresentationAddress().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)))
    )

class PDSParameter(univ.Set):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('printable-string', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_pds_parameter_length))),
        namedtype.OptionalNamedType('teletex-string', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_pds_parameter_length)))
    )

local_postal_attributes = univ.Integer(21)

class LocalPostalAttributes(PDSParameter): pass

class UniquePostalName(PDSParameter): pass

unique_postal_name = univ.Integer(20)

poste_restante_address = univ.Integer(19)

class PosteRestanteAddress(PDSParameter): pass

post_office_box_address = univ.Integer(18)

class PostOfficeBoxAddress(PDSParameter): pass

street_address = univ.Integer(17)

class StreetAddress(PDSParameter): pass

class UnformattedPostalAddress(univ.Set):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('printable-address', univ.SequenceOf(componentType=char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_pds_parameter_length)).subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_pds_physical_address_lines)))),
        namedtype.OptionalNamedType('teletex-string', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_unformatted_address_length)))
    )

physical_delivery_office_name = univ.Integer(10)

class PhysicalDeliveryOfficeName(PDSParameter): pass

physical_delivery_office_number = univ.Integer(11)

class PhysicalDeliveryOfficeNumber(PDSParameter): pass

extension_OR_address_components = univ.Integer(12)

class ExtensionORAddressComponents(PDSParameter): pass

physical_delivery_personal_name = univ.Integer(13)

class PhysicalDeliveryPersonalName(PDSParameter): pass

physical_delivery_organization_name = univ.Integer(14)

class PhysicalDeliveryOrganizationName(PDSParameter): pass

extension_physical_delivery_address_components = univ.Integer(15)

class ExtensionPhysicalDeliveryAddressComponents(PDSParameter): pass

unformatted_postal_address = univ.Integer(16)

postal_code = univ.Integer(9)

class PostalCode(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('numeric-code', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_postal_code_length))),
        namedtype.NamedType('printable-code', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_postal_code_length)))
    )

class PhysicalDeliveryCountryName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('x121-dcc-code', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(ub_country_name_numeric_length, ub_country_name_numeric_length))),
        namedtype.NamedType('iso-3166-alpha2-code', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(ub_country_name_alpha_length, ub_country_name_alpha_length)))
    )

class PDSName(char.PrintableString):
    subtypeSpec = char.PrintableString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_pds_name_length)

physical_delivery_country_name = univ.Integer(8)

class TeletexOrganizationalUnitName(char.TeletexString):
    subtypeSpec = char.TeletexString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organizational_unit_name_length)

pds_name = univ.Integer(7)

teletex_organizational_unit_names = univ.Integer(5)

class TeletexOrganizationalUnitNames(univ.SequenceOf):
    componentType = TeletexOrganizationalUnitName()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organizational_units)

teletex_personal_name = univ.Integer(4)

class TeletexPersonalName(univ.Set):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('surname', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_surname_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('given-name', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_given_name_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('initials', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_initials_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('generation-qualifier', char.TeletexString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_generation_qualifier_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3)))
    )

teletex_organization_name = univ.Integer(3)

class TeletexOrganizationName(char.TeletexString):
    subtypeSpec = char.TeletexString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organization_name_length)

teletex_common_name = univ.Integer(2)

class TeletexCommonName(char.TeletexString):
    subtypeSpec = char.TeletexString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_common_name_length)

class CommonName(char.PrintableString):
    subtypeSpec = char.PrintableString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_common_name_length)

common_name = univ.Integer(1)

class ExtensionAttribute(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('extension-attribute-type', univ.Integer().subtype(subtypeSpec=constraint.ValueSizeConstraint(0, ub_extension_attributes), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('extension-attribute-value', univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1)))
    )

class ExtensionAttributes(univ.SetOf):
    componentType = ExtensionAttribute()
    subtypeSpec = univ.SetOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_extension_attributes)

class BuiltInDomainDefinedAttribute(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('type', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_domain_defined_attribute_type_length))),
        namedtype.NamedType('value', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_domain_defined_attribute_value_length)))
    )

class BuiltInDomainDefinedAttributes(univ.SequenceOf):
    componentType = BuiltInDomainDefinedAttribute()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_domain_defined_attributes)

class OrganizationalUnitName(char.PrintableString):
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organizational_unit_name_length)

class OrganizationalUnitNames(univ.SequenceOf):
    componentType = OrganizationalUnitName()
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organizational_units)

class PersonalName(univ.Set):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('surname', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_surname_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('given-name', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_given_name_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('initials', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_initials_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('generation-qualifier', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_generation_qualifier_length), explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3)))
    )

class NumericUserIdentifier(char.NumericString):
    subtypeSpec = char.NumericString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_numeric_user_id_length)

class OrganizationName(char.PrintableString):
    subtypeSpec = char.PrintableString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_organization_name_length)

class PrivateDomainName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('numeric', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_domain_name_length))),
        namedtype.NamedType('printable', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, ub_domain_name_length)))
    )

class TerminalIdentifier(char.PrintableString):
    subtypeSpec = char.PrintableString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_terminal_id_length)

class X121Address(char.NumericString):
    subtypeSpec = char.NumericString.subtypeSpec + constraint.ValueSizeConstraint(1, ub_x121_address_length)

class NetworkAddress(X121Address): pass

class AdministrationDomainName(univ.Choice):
    tagSet = univ.Choice.tagSet.tagExplicitly(
        tag.Tag(tag.tagClassApplication, tag.tagFormatConstructed, 2)
        )
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('numeric', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(0, ub_domain_name_length))),
        namedtype.NamedType('printable', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(0, ub_domain_name_length)))
    )

class CountryName(univ.Choice):
    tagSet = univ.Choice.tagSet.tagExplicitly(
        tag.Tag(tag.tagClassApplication, tag.tagFormatConstructed, 1)
        )
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('x121-dcc-code', char.NumericString().subtype(subtypeSpec=constraint.ValueSizeConstraint(ub_country_name_numeric_length, ub_country_name_numeric_length))),
        namedtype.NamedType('iso-3166-alpha2-code', char.PrintableString().subtype(subtypeSpec=constraint.ValueSizeConstraint(ub_country_name_alpha_length, ub_country_name_alpha_length)))
    )

class BuiltInStandardAttributes(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('country-name', CountryName()),
        namedtype.OptionalNamedType('administration-domain-name', AdministrationDomainName()),
        namedtype.OptionalNamedType('network-address', NetworkAddress().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('terminal-identifier', TerminalIdentifier().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('private-domain-name', PrivateDomainName().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('organization-name', OrganizationName().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3))),
        namedtype.OptionalNamedType('numeric-user-identifier', NumericUserIdentifier().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 4))),
        namedtype.OptionalNamedType('personal-name', PersonalName().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 5))),
        namedtype.OptionalNamedType('organizational-unit-names', OrganizationalUnitNames().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 6)))
    )

class ORAddress(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('built-in-standard-attributes', BuiltInStandardAttributes()),
        namedtype.OptionalNamedType('built-in-domain-defined-attributes', BuiltInDomainDefinedAttributes()),
        namedtype.OptionalNamedType('extension-attributes', ExtensionAttributes())
    )

#
# PKIX1Implicit88
#

id_ce_invalidityDate = univ.ObjectIdentifier('2.5.29.24')

class InvalidityDate(useful.GeneralizedTime): pass

id_holdinstruction_none = univ.ObjectIdentifier('2.2.840.10040.2.1')
id_holdinstruction_callissuer = univ.ObjectIdentifier('2.2.840.10040.2.2')
id_holdinstruction_reject = univ.ObjectIdentifier('2.2.840.10040.2.3')

holdInstruction = univ.ObjectIdentifier('2.2.840.10040.2')

id_ce_holdInstructionCode = univ.ObjectIdentifier('2.5.29.23')

class HoldInstructionCode(univ.ObjectIdentifier): pass

id_ce_cRLReasons = univ.ObjectIdentifier('2.5.29.21')

class CRLReason(univ.Enumerated):
    namedValues = namedval.NamedValues(
        ('unspecified', 0),
        ('keyCompromise', 1),
        ('cACompromise', 2),
        ('affiliationChanged', 3),
        ('superseded', 4),
        ('cessationOfOperation', 5),
        ('certificateHold', 6),
        ('removeFromCRL', 8)
    )

id_ce_cRLNumber = univ.ObjectIdentifier('2.5.29.20')

class CRLNumber(univ.Integer):
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(0, MAX)

class BaseCRLNumber(CRLNumber): pass

id_kp_serverAuth = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.1.1')
id_kp_clientAuth = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.2')
id_kp_codeSigning = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.3')
id_kp_emailProtection = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.4')
id_kp_ipsecEndSystem = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.5')
id_kp_ipsecTunnel = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.6')
id_kp_ipsecUser = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.7')
id_kp_timeStamping = univ.ObjectIdentifier('1.3.6.1.5.5.7.3.8')
id_pe_authorityInfoAccess = univ.ObjectIdentifier('1.3.6.1.5.5.7.1.1')
id_ce_extKeyUsage = univ.ObjectIdentifier('2.5.29.37')

class KeyPurposeId(univ.ObjectIdentifier): pass

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

class ReasonFlags(univ.BitString):
    namedValues = namedval.NamedValues(
        ('unused', 0),
        ('keyCompromise', 1),
        ('cACompromise', 2),
        ('affiliationChanged', 3),
        ('superseded', 4),
        ('cessationOfOperation', 5),
        ('certificateHold', 6)
    )


class SkipCerts(univ.Integer):
    subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueSizeConstraint(0, MAX)

id_ce_policyConstraints = univ.ObjectIdentifier('2.5.29.36')

class PolicyConstraints(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('requireExplicitPolicy', SkipCerts().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.OptionalNamedType('inhibitPolicyMapping', SkipCerts().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)))
    )

id_ce_basicConstraints = univ.ObjectIdentifier('2.5.29.19')

class BasicConstraints(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('cA', univ.Boolean(False)),
        namedtype.OptionalNamedType('pathLenConstraint', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, MAX)))
    )

id_ce_subjectDirectoryAttributes = univ.ObjectIdentifier('2.5.29.9')

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

class EDIPartyName(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('nameAssigner', DirectoryString().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('partyName', DirectoryString().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1)))
    )

class AnotherName(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('type-id', univ.ObjectIdentifier()),
        namedtype.NamedType('value', univ.Any().subtype(explicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0)))
    )

class GeneralName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('otherName', AnotherName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.NamedType('rfc822Name', char.IA5String().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.NamedType('dNSName', char.IA5String().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.NamedType('x400Address', ORAddress().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3))),
        namedtype.NamedType('directoryName', Name().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 4))),
        namedtype.NamedType('ediPartyName', EDIPartyName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 5))),
        namedtype.NamedType('uniformResourceIdentifier', char.IA5String().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 6))),
        namedtype.NamedType('iPAddress', univ.OctetString().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 7))),
        namedtype.NamedType('registeredID', univ.ObjectIdentifier().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 8)))
    )

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

class AccessDescription(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('accessMethod', univ.ObjectIdentifier()),
        namedtype.NamedType('accessLocation', GeneralName())
    )

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

id_ce_deltaCRLIndicator = univ.ObjectIdentifier('2.5.29.27')

class DistributionPointName(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('fullName', GeneralNames().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.NamedType('nameRelativeToCRLIssuer', RelativeDistinguishedName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)))
    )

class DistributionPoint(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('distributionPoint', DistributionPointName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.OptionalNamedType('reasons', ReasonFlags().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('cRLIssuer', GeneralNames().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)))
    )
class BaseDistance(univ.Integer):
    subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(0, MAX)

id_ce_cRLDistributionPoints = univ.ObjectIdentifier('2.5.29.31')

class CRLDistPointsSyntax(univ.SequenceOf):
    componentType = DistributionPoint
    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(1, MAX)
id_ce_issuingDistributionPoint = univ.ObjectIdentifier('2.5.29.28')

class IssuingDistributionPoint(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('distributionPoint', DistributionPointName().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.NamedType('onlyContainsUserCerts', univ.Boolean(False).subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.NamedType('onlyContainsCACerts', univ.Boolean(False).subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2))),
        namedtype.OptionalNamedType('onlySomeReasons', ReasonFlags().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 3))),
        namedtype.NamedType('indirectCRL', univ.Boolean(False).subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 4)))
    )

class GeneralSubtree(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('base', GeneralName()),
        namedtype.NamedType('minimum', BaseDistance(0).subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.OptionalNamedType('maximum', BaseDistance().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)))
    )

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

id_ce_nameConstraints = univ.ObjectIdentifier('2.5.29.30')

class NameConstraints(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('permittedSubtrees', GeneralSubtrees().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0))),
        namedtype.OptionalNamedType('excludedSubtrees', GeneralSubtrees().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)))
    )


class DisplayText(univ.Choice):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('visibleString', char.VisibleString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, 200))),
        namedtype.NamedType('bmpString', char.BMPString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, 200))),
        namedtype.NamedType('utf8String', char.UTF8String().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, 200)))
    )

class NoticeReference(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('organization', DisplayText()),
        namedtype.NamedType('noticeNumbers', univ.SequenceOf(componentType=univ.Integer()))
    )

class UserNotice(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('noticeRef', NoticeReference()),
        namedtype.OptionalNamedType('explicitText', DisplayText())
    )

class CPSuri(char.IA5String): pass

class PolicyQualifierId(univ.ObjectIdentifier):
    subtypeSpec = univ.ObjectIdentifier.subtypeSpec + constraint.SingleValueConstraint(id_qt_cps, id_qt_unotice)

class CertPolicyId(univ.ObjectIdentifier): pass

class PolicyQualifierInfo(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('policyQualifierId', PolicyQualifierId()),
        namedtype.NamedType('qualifier', univ.Any())
    )

id_ce_certificatePolicies = univ.ObjectIdentifier('2.5.29.32')

class PolicyInformation(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('policyIdentifier', CertPolicyId()),
        namedtype.OptionalNamedType('policyQualifiers', univ.SequenceOf(componentType=PolicyQualifierInfo()).subtype(subtypeSpec=constraint.ValueSizeConstraint(1, MAX)))
    )

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

id_ce_policyMappings = univ.ObjectIdentifier('2.5.29.33')

class PolicyMapping(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.NamedType('issuerDomainPolicy', CertPolicyId()),
        namedtype.NamedType('subjectDomainPolicy', CertPolicyId())
    )

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

id_ce_privateKeyUsagePeriod = univ.ObjectIdentifier('2.5.29.16')

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

id_ce_keyUsage = univ.ObjectIdentifier('2.5.29.15')

class KeyUsage(univ.BitString):
    namedValues = namedval.NamedValues(
        ('digitalSignature', 0),
        ('nonRepudiation', 1),
        ('keyEncipherment', 2),
        ('dataEncipherment', 3),
        ('keyAgreement', 4),
        ('keyCertSign', 5),
        ('cRLSign', 6),
        ('encipherOnly', 7),
        ('decipherOnly', 8)
    )

id_ce = univ.ObjectIdentifier('2.5.29')

id_ce_authorityKeyIdentifier = univ.ObjectIdentifier('2.5.29.35')

class KeyIdentifier(univ.OctetString): pass

id_ce_subjectKeyIdentifier = univ.ObjectIdentifier('2.5.29.14')

class SubjectKeyIdentifier(KeyIdentifier): pass

class AuthorityKeyIdentifier(univ.Sequence):
    componentType = namedtype.NamedTypes(
        namedtype.OptionalNamedType('keyIdentifier', KeyIdentifier().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
        namedtype.OptionalNamedType('authorityCertIssuer', GeneralNames().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
        namedtype.OptionalNamedType('authorityCertSerialNumber', CertificateSerialNumber().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
    )

id_ce_certificateIssuer = univ.ObjectIdentifier('2.5.29.29')

class CertificateIssuer(GeneralNames): pass

id_ce_subjectAltName = univ.ObjectIdentifier('2.5.29.17')

class SubjectAltName(GeneralNames): pass

id_ce_issuerAltName = univ.ObjectIdentifier('2.5.29.18')

class IssuerAltName(GeneralNames): pass