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
|
/*
* (C) 2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_DL_GROUP)
#include <botan/dl_group.h>
#endif
namespace Botan_Tests {
#if defined(BOTAN_HAS_DL_GROUP)
namespace {
class DL_Group_Tests : public Test
{
public:
std::vector<Test::Result> run() override
{
std::vector<Test::Result> results;
Botan::RandomNumberGenerator& rng = Test::rng();
results.push_back(test_dl_encoding());
results.push_back(test_dl_named(rng));
results.push_back(test_dl_generate(rng));
return results;
}
private:
Test::Result test_dl_encoding()
{
Test::Result result("DL_Group encoding");
const Botan::DL_Group orig("modp/ietf/1024");
const std::string pem1 = orig.PEM_encode(Botan::DL_Group::ANSI_X9_42);
const std::string pem2 = orig.PEM_encode(Botan::DL_Group::ANSI_X9_57);
const std::string pem3 = orig.PEM_encode(Botan::DL_Group::PKCS_3);
Botan::DL_Group group;
group.PEM_decode(pem1);
result.test_eq("Same p in X9.42 decoding", group.get_p(), orig.get_p());
result.test_eq("Same q in X9.42 decoding", group.get_q(), orig.get_q());
result.test_eq("Same g in X9.42 decoding", group.get_g(), orig.get_g());
group.PEM_decode(pem2);
result.test_eq("Same p in X9.57 decoding", group.get_p(), orig.get_p());
result.test_eq("Same q in X9.57 decoding", group.get_q(), orig.get_q());
result.test_eq("Same g in X9.57 decoding", group.get_g(), orig.get_g());
group.PEM_decode(pem3);
result.test_eq("Same p in X9.57 decoding", group.get_p(), orig.get_p());
// no q in PKCS #3 format
result.test_eq("Same g in X9.57 decoding", group.get_g(), orig.get_g());
return result;
}
Test::Result test_dl_generate(Botan::RandomNumberGenerator& rng)
{
Test::Result result("DL_Group generate");
result.start_timer();
Botan::DL_Group dh1050(rng, Botan::DL_Group::Prime_Subgroup, 1050, 175);
result.test_eq("DH p size", dh1050.get_p().bits(), 1050);
result.test_eq("DH q size", dh1050.get_q().bits(), 175);
result.test_lte("DH g size", dh1050.get_g().bits(), 1050);
result.test_eq("DH group verifies", dh1050.verify_group(rng, true), true);
#if defined(BOTAN_HAS_SHA1)
Botan::DL_Group dsa1024(rng, Botan::DL_Group::DSA_Kosherizer, 1024);
result.test_eq("DSA p size", dsa1024.get_p().bits(), 1024);
result.test_eq("DSA q size", dsa1024.get_q().bits(), 160);
result.test_lte("DSA g size", dsa1024.get_g().bits(), 1024);
result.test_eq("DSA group verifies", dsa1024.verify_group(rng, true), true);
#endif
#if defined(BOTAN_HAS_SHA1)
// From FIPS 186-3 test data
const std::vector<uint8_t> seed = Botan::hex_decode("1F5DA0AF598EEADEE6E6665BF880E63D8B609BA2");
result.test_throws("invalid params", [&]() { Botan::DL_Group invalid(rng, seed, 1024, 224); });
result.test_throws("invalid params", [&]() { Botan::DL_Group invalid(rng, seed, 3072, 224); });
result.test_throws("invalid params", [&]() { Botan::DL_Group invalid(rng, seed, 2048, 256); });
Botan::DL_Group dsa_from_seed(rng, seed, 1024, 160);
result.test_eq("DSA q from seed", dsa_from_seed.get_q(),
Botan::BigInt("0xAB1A788BCE3C557A965A5BFA6908FAA665FDEB7D"));
// Modulo just to avoid embedding entire 1024-bit P in src file
result.test_eq("DSA p from seed", static_cast<size_t>(dsa_from_seed.get_p() % 4294967291), size_t(2513712339));
result.test_eq("DSA group from seed verifies", dsa_from_seed.verify_group(rng, true), true);
#endif
result.end_timer();
return result;
}
Test::Result test_dl_named(Botan::RandomNumberGenerator& rng)
{
const std::vector<std::string> dl_named =
{
"modp/ietf/1024",
"modp/ietf/1536",
"modp/ietf/2048",
"modp/ietf/3072",
"modp/ietf/4096",
"modp/ietf/6144",
"modp/ietf/8192",
"modp/srp/1024",
"modp/srp/1536",
"modp/srp/2048",
"modp/srp/3072",
"modp/srp/4096",
"modp/srp/6144",
"modp/srp/8192",
"dsa/jce/1024",
"dsa/botan/2048",
"dsa/botan/3072",
};
Test::Result result("DL_Group named");
result.start_timer();
for(std::string name : dl_named)
{
// Confirm we can load every group we expect
Botan::DL_Group group(name);
result.test_ne("DL_Group p is set", group.get_p(), 0);
result.test_ne("DL_Group g is set", group.get_g(), 0);
if(name.find("/srp/") == std::string::npos)
{
try
{
group.get_q(); // confirm all our non-SRP groups have q
}
catch(Botan::Invalid_State&)
{
result.test_failure("Group " + name + " has no q");
}
}
if(group.get_p().bits() < 2048 || Test::run_long_tests())
{
// These two groups fail verification because pow(g,q,p) != 1
if(name != "modp/srp/1024" && name != "modp/srp/2048")
{
result.test_eq(name + " verifies", group.verify_group(rng, false), true);
}
}
}
result.end_timer();
return result;
}
};
BOTAN_REGISTER_TEST("dl_group", DL_Group_Tests);
}
#endif
}
|
