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Mini Shell
# coding: utf-8
"""
ASN.1 type classes for certificate signing requests (CSR). Exports the
following items:
- CertificatationRequest()
Other type classes are defined that help compose the types listed above.
"""
from __future__ import unicode_literals, division, absolute_import, print_function
from .algos import SignedDigestAlgorithm
from .core import (
Any,
Integer,
ObjectIdentifier,
OctetBitString,
Sequence,
SetOf,
)
from .keys import PublicKeyInfo
from .x509 import DirectoryString, Extensions, Name
# The structures in this file are taken from https://tools.ietf.org/html/rfc2986
# and https://tools.ietf.org/html/rfc2985
class Version(Integer):
_map = {
0: 'v1',
}
class CSRAttributeType(ObjectIdentifier):
_map = {
'1.2.840.113549.1.9.7': 'challenge_password',
'1.2.840.113549.1.9.9': 'extended_certificate_attributes',
'1.2.840.113549.1.9.14': 'extension_request',
}
class SetOfDirectoryString(SetOf):
_child_spec = DirectoryString
class Attribute(Sequence):
_fields = [
('type', ObjectIdentifier),
('values', SetOf, {'spec': Any}),
]
class SetOfAttributes(SetOf):
_child_spec = Attribute
class SetOfExtensions(SetOf):
_child_spec = Extensions
class CRIAttribute(Sequence):
_fields = [
('type', CSRAttributeType),
('values', Any),
]
_oid_pair = ('type', 'values')
_oid_specs = {
'challenge_password': SetOfDirectoryString,
'extended_certificate_attributes': SetOfAttributes,
'extension_request': SetOfExtensions,
}
class CRIAttributes(SetOf):
_child_spec = CRIAttribute
class CertificationRequestInfo(Sequence):
_fields = [
('version', Version),
('subject', Name),
('subject_pk_info', PublicKeyInfo),
('attributes', CRIAttributes, {'tag_type': 'implicit', 'tag': 0, 'optional': True}),
]
class CertificationRequest(Sequence):
_fields = [
('certification_request_info', CertificationRequestInfo),
('signature_algorithm', SignedDigestAlgorithm),
('signature', OctetBitString),
]
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