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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
# Copyright (c) 2015 The Johns Hopkins University/Applied Physics Laboratory
# All Rights Reserved.
#
# 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
#
# http://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.
import abc
import six
import ssl
@six.add_metaclass(abc.ABCMeta)
class AuthenticationSuite(object):
"""
An authentication suite used to establish secure network connections.
Acts as the base of the suite hierarchy.
"""
# OpenSSL cipher suites
# Explicitly listed suites for Basic and TLSv1.2 authentication for KMIP
# profiles.
#
# Obtained from:
# https://www.openssl.org/docs/man1.1.0/apps/ciphers.html
# https://www.openssl.org/docs/man1.0.2/apps/ciphers.html
openssl_cipher_suite_map = {
# TLS v1.2 cipher suites
'TLS_RSA_WITH_AES_256_CBC_SHA256': 'AES256-SHA256',
'TLS_RSA_WITH_AES_128_CBC_SHA256': 'AES128-SHA256',
'TLS_DH_DSS_WITH_AES_128_CBC_SHA256': 'DH-DSS-AES128-SHA256',
'TLS_DH_RSA_WITH_AES_128_CBC_SHA256': 'DH-RSA-AES128-SHA256',
'TLS_DHE_DSS_WITH_AES_128_CBC_SHA256': 'DHE-DSS-AES128-SHA256',
'TLS_DHE_RSA_WITH_AES_128_CBC_SHA256': 'DHE-RSA-AES128-SHA256',
'TLS_DH_DSS_WITH_AES_256_CBC_SHA256': 'DH-DSS-AES256-SHA256',
'TLS_DH_RSA_WITH_AES_256_CBC_SHA256': 'DH-RSA-AES256-SHA256',
'TLS_DHE_DSS_WITH_AES_256_CBC_SHA256': 'DHE-DSS-AES256-SHA256',
'TLS_DHE_RSA_WITH_AES_256_CBC_SHA256': 'DHE-RSA-AES256-SHA256',
'TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256': 'ECDHE-ECDSA-AES128-SHA256',
'TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384': 'ECDHE-ECDSA-AES256-SHA384',
'TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256': 'ECDHE-RSA-AES128-SHA256',
'TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384': 'ECDHE-RSA-AES256-SHA384',
'TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256':
'ECDHE-ECDSA-AES128-GCM-SHA256',
'TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384':
'ECDHE-ECDSA-AES256-GCM-SHA384',
'TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256': 'ECDH-ECDSA-AES128-SHA256',
'TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384': 'ECDH-ECDSA-AES256-SHA384',
'TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256': 'ECDH-RSA-AES128-SHA256',
'TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384': 'ECDH-RSA-AES256-SHA384',
# AES ciphersuites from RFC3268, extending TLS v1.0
'TLS_RSA_WITH_AES_128_CBC_SHA': 'AES128-SHA',
'TLS_RSA_WITH_AES_256_CBC_SHA': 'AES256-SHA',
'TLS_DH_DSS_WITH_AES_128_CBC_SHA': 'DH-DSS-AES128-SHA',
'TLS_DH_RSA_WITH_AES_128_CBC_SHA': 'DH-RSA-AES128-SHA',
'TLS_DHE_DSS_WITH_AES_128_CBC_SHA': 'DHE-DSS-AES128-SHA',
'TLS_DHE_RSA_WITH_AES_128_CBC_SHA': 'DHE-RSA-AES128-SHA',
'TLS_DH_DSS_WITH_AES_256_CBC_SHA': 'DH-DSS-AES256-SHA',
'TLS_DH_RSA_WITH_AES_256_CBC_SHA': 'DH-RSA-AES256-SHA',
'TLS_DHE_DSS_WITH_AES_256_CBC_SHA': 'DHE-DSS-AES256-SHA',
'TLS_DHE_RSA_WITH_AES_256_CBC_SHA': 'DHE-RSA-AES256-SHA',
# Elliptic curve cipher suites.
'TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA': 'ECDHE-ECDSA-AES128-SHA',
'TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA': 'ECDHE-RSA-AES128-SHA',
# Pre shared keying (PSK) cipheruites
'TLS_PSK_WITH_AES_128_CBC_SHA': 'PSK-AES128-CBC-SHA',
'TLS_PSK_WITH_AES_256_CBC_SHA': 'PSK-AES256-CBC-SHA',
# No OpenSSL support
'TLS_DHE_PSK_WITH_AES_128_CBC_SHA': None,
'TLS_DHE_PSK_WITH_AES_256_CBC_SHA': None,
'TLS_RSA_PSK_WITH_AES_128_CBC_SHA': None,
'TLS_RSA_PSK_WITH_AES_256_CBC_SHA': None
}
_default_cipher_suites = []
@abc.abstractmethod
def __init__(self, cipher_suites=None):
"""
Create an AuthenticationSuite object.
Args:
cipher_suites (list): A list of strings representing the names of
cipher suites to use. Overrides the default set of cipher
suites. Optional, defaults to None.
"""
self._custom_suites = []
# Compose a unique list of custom cipher suites if any were provided.
# Translate each suite name into its corresponding OpenSSL suite name,
# allowing for both specification and OpenSSL suite names in the
# provided list.
if cipher_suites:
for cipher_suite in cipher_suites:
if cipher_suite in self.openssl_cipher_suite_map.keys():
suite = self.openssl_cipher_suite_map.get(cipher_suite)
if suite:
self._custom_suites.append(suite)
elif cipher_suite in self.openssl_cipher_suite_map.values():
if cipher_suite:
self._custom_suites.append(cipher_suite)
self._custom_suites = list(set(self._custom_suites))
# Filter the custom suites to only include those from the default
# cipher suite list (provided for each subclass authentication suite).
# If no custom suites were specified, use the default cipher suites.
suites = []
if self._custom_suites:
for suite in self._custom_suites:
if suite in self._default_cipher_suites:
suites.append(suite)
else:
suites = self._default_cipher_suites
self._cipher_suites = ':'.join(suites)
if self._cipher_suites == '':
self._cipher_suites = ':'.join(self._default_cipher_suites)
@property
def protocol(self):
"""
Get the authentication suite protocol.
Returns:
int: The value of the ssl.PROTOCOL_* setting for this suite.
"""
return self._protocol
@property
def ciphers(self):
"""
Get the authentication suite cipher string.
Returns:
string: A colon delimited string listing the valid ciphers for
the suite protocol.
"""
return self._cipher_suites
class BasicAuthenticationSuite(AuthenticationSuite):
"""
An authentication suite used to establish secure network connections.
Supports TLS 1.0 and a subset of TLS 1.0 compliant cipher suites, defined
in NIST 800-57, as defined by the KMIP specification.
"""
_default_cipher_suites = [
'AES128-SHA',
'DES-CBC3-SHA',
'AES256-SHA',
'DHE-DSS-DES-CBC3-SHA',
'DHE-RSA-DES-CBC3-SHA',
'DH-DSS-AES128-SHA',
'DH-RSA-AES128-SHA',
'DHE-DSS-AES128-SHA',
'DHE-RSA-AES128-SHA',
'DH-RSA-AES256-SHA',
'DHE-DSS-AES256-SHA',
'DHE-RSA-AES256-SHA'
]
def __init__(self, cipher_suites=None):
"""
Create a BasicAuthenticationSuite object.
Args:
cipher_suites (list): A list of strings representing the names of
cipher suites to use. Overrides the default set of cipher
suites. Optional, defaults to None.
"""
super(BasicAuthenticationSuite, self).__init__(cipher_suites)
self._protocol = ssl.PROTOCOL_TLSv1
class TLS12AuthenticationSuite(AuthenticationSuite):
"""
An authentication suite used to establish secure network connections.
Supports TLS 1.2 and a subset of TLS 1.2 compliant cipher suites, defined
in NIST 800-57, as defined by the KMIP specification.
"""
_default_cipher_suites = [
'AES128-SHA256',
'AES256-SHA256',
'DH-DSS-AES256-SHA256',
'DH-DSS-AES128-SHA256',
'DH-RSA-AES128-SHA256',
'DHE-DSS-AES128-SHA256',
'DHE-RSA-AES128-SHA256',
'DH-DSS-AES256-SHA256',
'DH-RSA-AES256-SHA256',
'DHE-DSS-AES256-SHA256',
'DHE-RSA-AES256-SHA256',
'ECDH-ECDSA-AES128-SHA256',
'ECDH-ECDSA-AES256-SHA256',
'ECDHE-ECDSA-AES128-SHA256',
'ECDHE-ECDSA-AES256-SHA384',
'ECDH-RSA-AES128-SHA256',
'ECDH-RSA-AES256-SHA384',
'ECDHE-RSA-AES128-SHA256',
'ECDHE-RSA-AES256-SHA384',
'ECDHE-ECDSA-AES128-GCM-SHA256',
'ECDHE-ECDSA-AES256-GCM-SHA384',
'ECDHE-ECDSA-AES128-SHA256',
'ECDHE-ECDSA-AES256-SHA384'
]
def __init__(self, cipher_suites=None):
"""
Create a TLS12AuthenticationSuite object.
Args:
cipher_suites (list): A list of strings representing the names of
cipher suites to use. Overrides the default set of cipher
suites. Optional, defaults to None.
"""
super(TLS12AuthenticationSuite, self).__init__(cipher_suites)
self._protocol = ssl.PROTOCOL_TLSv1_2
|
