blob: d8f697d8be78c65e3926fb464b009eb6f3569192 (
plain)
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
|
test_invalid.doctest - test for invalid PSKC file
Copyright (C) 2014-2016 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
>>> from binascii import a2b_hex, b2a_hex
>>> def tostr(x):
... return str(x.decode())
>>> def decode(f):
... return lambda x: tostr(f(x))
>>> b2a_hex = decode(b2a_hex)
>>> from pskc import PSKC
Load a number of invalid files.
This file is plain invalid XML.
>>> pskc = PSKC('tests/invalid/notxml.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ParseError: Error parsing XML
This XML file has a wrong top-level element.
>>> pskc = PSKC('tests/invalid/wrongelement.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ParseError: Missing KeyContainer
This file has an unknown PSKC version.
>>> pskc = PSKC('tests/invalid/wrongversion.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ParseError: Unsupported version
This PSKC file has a key with an unknown algorithm specified.
>>> pskc = PSKC('tests/invalid/unknown-encryption.pskcxml')
>>> key = pskc.keys[0]
>>> key.id
'12345678'
>>> key.secret # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: No key available
>>> pskc.encryption.key = a2b_hex('12345678901234567890123456789012')
>>> key.secret # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: Unsupported algorithm: ...
This PSKC file has a key without an algorithm specified.
>>> pskc = PSKC('tests/invalid/missing-encryption.pskcxml')
>>> pskc.encryption.key = a2b_hex('12345678901234567890123456789012')
>>> key = pskc.keys[0]
>>> key.id
'45678901'
>>> b2a_hex(key.secret) # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: No algorithm specified
>>> pskc.encryption.algorithm = 'aes128-cbc'
>>> b2a_hex(key.secret)
'3132333435363738393031323334353637383930'
Specify an unknown key derivation algorithm.
>>> pskc = PSKC('tests/rfc6030/figure7.pskcxml')
>>> pskc.encryption.derivation.algorithm = 'unknown'
>>> pskc.encryption.derive_key('qwerty') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
KeyDerivationError: Unsupported algorithm: 'unknown'
Figure 6 does use encryption but with a pre-shared key. Attempting key
derivation with such a PSKC file should result in an exception.
>>> pskc = PSKC('tests/rfc6030/figure6.pskcxml')
>>> pskc.encryption.derive_key('qwerty') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
KeyDerivationError: No algorithm specified
Specify an unknown PBKDF2 PRF (pseudorandom function).
>>> pskc = PSKC('tests/rfc6030/figure7.pskcxml')
>>> pskc.encryption.derivation.pbkdf2_prf = 'unknown'
>>> pskc.encryption.derive_key('qwerty') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
KeyDerivationError: Pseudorandom function unsupported: 'unknown'
There is a ValueMAC element but no MACMethod element.
>>> pskc = PSKC('tests/invalid/no-mac-method.pskcxml')
>>> pskc.encryption.key = a2b_hex('12345678901234567890123456789012')
>>> key = pskc.keys[0]
>>> key.id
'12345678'
>>> key.secret # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: No MAC key available
There is an unknown algorithm specified in MACMethod.
>>> pskc = PSKC('tests/invalid/mac-algorithm.pskcxml')
>>> pskc.encryption.key = a2b_hex('12345678901234567890123456789012')
>>> key = pskc.keys[0]
>>> key.id
'12345678'
>>> key.secret # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: Unsupported MAC algorithm: ...
The MAC value does not match the calculated MAC, something was modified in
transit.
>>> pskc = PSKC('tests/invalid/mac-value.pskcxml')
>>> pskc.encryption.key = a2b_hex('12345678901234567890123456789012')
>>> key = pskc.keys[0]
>>> key.id
'12345678'
>>> key.secret # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
DecryptionError: MAC value does not match
Checks to see that invalid values are detected.
>>> pskc = PSKC('tests/invalid/not-integer.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ValueError: invalid literal for int() with base 10: 'TWELVE'
>>> pskc = PSKC('tests/invalid/not-integer2.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ValueError: invalid literal for int() with base 10: 'FOUR'
>>> pskc = PSKC('tests/invalid/not-boolean.pskcxml') # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
ValueError: invalid boolean value: 'not really'
|