134 lines
3.5 KiB
Python
134 lines
3.5 KiB
Python
# coding: utf-8
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"""
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ASN.1 type classes for certificate signing requests (CSR). Exports the
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following items:
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- CertificationRequest()
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Other type classes are defined that help compose the types listed above.
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"""
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from __future__ import unicode_literals, division, absolute_import, print_function
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from .algos import SignedDigestAlgorithm
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from .core import (
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Any,
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BitString,
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BMPString,
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Integer,
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ObjectIdentifier,
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OctetBitString,
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Sequence,
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SetOf,
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UTF8String
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)
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from .keys import PublicKeyInfo
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from .x509 import DirectoryString, Extensions, Name
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# The structures in this file are taken from https://tools.ietf.org/html/rfc2986
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# and https://tools.ietf.org/html/rfc2985
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class Version(Integer):
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_map = {
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0: 'v1',
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}
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class CSRAttributeType(ObjectIdentifier):
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_map = {
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'1.2.840.113549.1.9.7': 'challenge_password',
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'1.2.840.113549.1.9.9': 'extended_certificate_attributes',
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'1.2.840.113549.1.9.14': 'extension_request',
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# https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-wcce/a5eaae36-e9f3-4dc5-a687-bfa7115954f1
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'1.3.6.1.4.1.311.13.2.2': 'microsoft_enrollment_csp_provider',
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# https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-wcce/7c677cba-030d-48be-ba2b-01e407705f34
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'1.3.6.1.4.1.311.13.2.3': 'microsoft_os_version',
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# https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-wcce/64e5ff6d-c6dd-4578-92f7-b3d895f9b9c7
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'1.3.6.1.4.1.311.21.20': 'microsoft_request_client_info',
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}
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class SetOfDirectoryString(SetOf):
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_child_spec = DirectoryString
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class Attribute(Sequence):
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_fields = [
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('type', ObjectIdentifier),
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('values', SetOf, {'spec': Any}),
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]
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class SetOfAttributes(SetOf):
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_child_spec = Attribute
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class SetOfExtensions(SetOf):
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_child_spec = Extensions
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class MicrosoftEnrollmentCSProvider(Sequence):
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_fields = [
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('keyspec', Integer),
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('cspname', BMPString), # cryptographic service provider name
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('signature', BitString),
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]
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class SetOfMicrosoftEnrollmentCSProvider(SetOf):
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_child_spec = MicrosoftEnrollmentCSProvider
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class MicrosoftRequestClientInfo(Sequence):
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_fields = [
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('clientid', Integer),
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('machinename', UTF8String),
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('username', UTF8String),
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('processname', UTF8String),
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]
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class SetOfMicrosoftRequestClientInfo(SetOf):
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_child_spec = MicrosoftRequestClientInfo
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class CRIAttribute(Sequence):
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_fields = [
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('type', CSRAttributeType),
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('values', Any),
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]
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_oid_pair = ('type', 'values')
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_oid_specs = {
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'challenge_password': SetOfDirectoryString,
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'extended_certificate_attributes': SetOfAttributes,
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'extension_request': SetOfExtensions,
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'microsoft_enrollment_csp_provider': SetOfMicrosoftEnrollmentCSProvider,
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'microsoft_os_version': SetOfDirectoryString,
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'microsoft_request_client_info': SetOfMicrosoftRequestClientInfo,
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}
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class CRIAttributes(SetOf):
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_child_spec = CRIAttribute
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class CertificationRequestInfo(Sequence):
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_fields = [
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('version', Version),
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('subject', Name),
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('subject_pk_info', PublicKeyInfo),
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('attributes', CRIAttributes, {'implicit': 0, 'optional': True}),
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]
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class CertificationRequest(Sequence):
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_fields = [
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('certification_request_info', CertificationRequestInfo),
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('signature_algorithm', SignedDigestAlgorithm),
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('signature', OctetBitString),
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]
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