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
|
#!/usr/bin/env python
# XXX memory leaks
"""
Unit tests for M2Crypto.EC, the curves
There are several ways one could unittest elliptical curves
but we are going to only validate that we are using the
OpenSSL curve and that it works with ECDSA. We will assume
OpenSSL has validated the curves themselves.
Also, some curves are shorter than a SHA-1 digest of 160
bits. To keep the testing simple, we will take advantage
of ECDSA's ability to sign any digest length and create a
digset string of only 48 bits. Remember we are testing our
ability to access the curve, not ECDSA itself.
Copyright (c) 2006 Larry Bugbee. All rights reserved.
"""
import unittest
#import sha
from M2Crypto import EC, Rand
from test_ecdsa import ECDSATestCase as ECDSATest
curves = [
('secp112r1', 112),
('secp112r2', 112),
('secp128r1', 128),
('secp128r2', 128),
('secp160k1', 160),
('secp160r1', 160),
('secp160r2', 160),
('secp192k1', 192),
('secp224k1', 224),
('secp224r1', 224),
('secp256k1', 256),
('secp384r1', 384),
('secp521r1', 521),
('sect113r1', 113),
('sect113r2', 113),
('sect131r1', 131),
('sect131r2', 131),
('sect163k1', 163),
('sect163r1', 163),
('sect163r2', 163),
('sect193r1', 193),
('sect193r2', 193),
('sect233k1', 233),
('sect233r1', 233),
('sect239k1', 239),
('sect283k1', 283),
('sect283r1', 283),
('sect409k1', 409),
('sect409r1', 409),
('sect571k1', 571),
('sect571r1', 571),
('X9_62_prime192v1', 192),
('X9_62_prime192v2', 192),
('X9_62_prime192v3', 192),
('X9_62_prime239v1', 239),
('X9_62_prime239v2', 239),
('X9_62_prime239v3', 239),
('X9_62_prime256v1', 256),
('X9_62_c2pnb163v1', 163),
('X9_62_c2pnb163v2', 163),
('X9_62_c2pnb163v3', 163),
('X9_62_c2pnb176v1', 176),
('X9_62_c2tnb191v1', 191),
('X9_62_c2tnb191v2', 191),
('X9_62_c2tnb191v3', 191),
('X9_62_c2pnb208w1', 208),
('X9_62_c2tnb239v1', 239),
('X9_62_c2tnb239v2', 239),
('X9_62_c2tnb239v3', 239),
('X9_62_c2pnb272w1', 272),
('X9_62_c2pnb304w1', 304),
('X9_62_c2tnb359v1', 359),
('X9_62_c2pnb368w1', 368),
('X9_62_c2tnb431r1', 431),
('wap_wsg_idm_ecid_wtls1', 113),
('wap_wsg_idm_ecid_wtls3', 163),
('wap_wsg_idm_ecid_wtls4', 113),
('wap_wsg_idm_ecid_wtls5', 163),
('wap_wsg_idm_ecid_wtls6', 112),
('wap_wsg_idm_ecid_wtls7', 160),
('wap_wsg_idm_ecid_wtls8', 112),
('wap_wsg_idm_ecid_wtls9', 160),
('wap_wsg_idm_ecid_wtls10', 233),
('wap_wsg_idm_ecid_wtls11', 233),
('wap_wsg_idm_ecid_wtls12', 224),
]
# The following two curves, according to OpenSSL, have a
# "Questionable extension field!" and are not supported by
# the OpenSSL inverse function. ECError: no inverse.
# As such they cannot be used for signing. They might,
# however, be usable for encryption but that has not
# been tested. Until thir usefulness can be established,
# they are not supported at this time.
#curves2 = [
# ('ipsec3', 155),
# ('ipsec4', 185),
#]
class ECCurveTests(unittest.TestCase):
#data = sha.sha('Kilroy was here!').digest() # 160 bits
data = "digest" # keep short (48 bits) so lesser curves
# will work... ECDSA requires curve be
# equal or longer than digest
def genkey(self, curveName, curveLen):
curve = getattr(EC, 'NID_'+curveName)
ec = EC.gen_params(curve)
assert len(ec) == curveLen
ec.gen_key()
assert ec.check_key(), 'check_key() failure for "%s"' % curveName
return ec
# def check_ec_curves_genkey(self):
# for curveName, curveLen in curves2:
# self.genkey(curveName, curveLen)
#
# self.assertRaises(AttributeError, self.genkey,
# 'nosuchcurve', 1)
def sign_verify_ecdsa(self, curveName, curveLen):
ec = self.genkey(curveName, curveLen)
r, s = ec.sign_dsa(self.data)
assert ec.verify_dsa(self.data, r, s)
assert not ec.verify_dsa(self.data, s, r)
def test_ec_curves_ECDSA(self):
for curveName, curveLen in curves:
self.sign_verify_ecdsa(curveName, curveLen)
self.assertRaises(AttributeError, self.sign_verify_ecdsa,
'nosuchcurve', 1)
# for curveName, curveLen in curves2:
# self.assertRaises(EC.ECError, self.sign_verify_ecdsa,
# curveName, curveLen)
def suite():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(ECCurveTests))
return suite
if __name__ == '__main__':
Rand.load_file('randpool.dat', -1)
unittest.TextTestRunner().run(suite())
Rand.save_file('randpool.dat')
|
