rfc7914.py
1.46 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
#
# 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)