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#
# This file is part of pyasn1-modules software.
#
# Created by Russ Housley with assistance from asn1ate v.0.6.0.
#
# Copyright (c) 2019, Vigil Security, LLC
# License: http://snmplabs.com/pyasn1/license.html
#
#The scrypt Password-Based Key Derivation Function
#
# ASN.1 source from:
# https://www.rfc-editor.org/rfc/rfc8520.txt
# https://www.rfc-editor.org/errata/eid5871
#
from pyasn1.type import constraint
from pyasn1.type import namedtype
from pyasn1.type import univ
from pyasn1_modules import rfc5280
MAX = float('inf')
id_scrypt = univ.ObjectIdentifier('1.3.6.1.4.1.11591.4.11')
class Scrypt_params(univ.Sequence):
componentType = namedtype.NamedTypes(
namedtype.NamedType('salt',
univ.OctetString()),
namedtype.NamedType('costParameter',
univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
namedtype.NamedType('blockSize',
univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
namedtype.NamedType('parallelizationParameter',
univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
namedtype.OptionalNamedType('keyLength',
univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, MAX)))
)
# Update the Algorithm Identifier map in rfc5280.py
_algorithmIdentifierMapUpdate = {
id_scrypt: Scrypt_params(),
}
rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)