# -*- coding: utf-8 -*-
|
#
|
# Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu>
|
#
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
# you may not use this file except in compliance with the License.
|
# You may obtain a copy of the License at
|
#
|
# https://www.apache.org/licenses/LICENSE-2.0
|
#
|
# Unless required by applicable law or agreed to in writing, software
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
# See the License for the specific language governing permissions and
|
# limitations under the License.
|
|
"""ASN.1 definitions.
|
|
Not all ASN.1-handling code use these definitions, but when it does, they should be here.
|
"""
|
|
from pyasn1.type import univ, namedtype, tag
|
|
|
class PubKeyHeader(univ.Sequence):
|
componentType = namedtype.NamedTypes(
|
namedtype.NamedType('oid', univ.ObjectIdentifier()),
|
namedtype.NamedType('parameters', univ.Null()),
|
)
|
|
|
class OpenSSLPubKey(univ.Sequence):
|
componentType = namedtype.NamedTypes(
|
namedtype.NamedType('header', PubKeyHeader()),
|
|
# This little hack (the implicit tag) allows us to get a Bit String as Octet String
|
namedtype.NamedType('key', univ.OctetString().subtype(
|
implicitTag=tag.Tag(tagClass=0, tagFormat=0, tagId=3))),
|
)
|
|
|
class AsnPubKey(univ.Sequence):
|
"""ASN.1 contents of DER encoded public key:
|
|
RSAPublicKey ::= SEQUENCE {
|
modulus INTEGER, -- n
|
publicExponent INTEGER, -- e
|
"""
|
|
componentType = namedtype.NamedTypes(
|
namedtype.NamedType('modulus', univ.Integer()),
|
namedtype.NamedType('publicExponent', univ.Integer()),
|
)
|
