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# -*- 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()),
)