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
235
236
237
238
239
240
241
242
243
244
|
/*
* (C) 2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_OCSP)
#include <botan/ocsp.h>
#include <botan/x509path.h>
#include <botan/certstor.h>
#include <botan/calendar.h>
#include <fstream>
#endif
namespace Botan_Tests {
#if defined(BOTAN_HAS_OCSP) && defined(BOTAN_HAS_RSA)
class OCSP_Tests final : public Test
{
private:
std::vector<uint8_t> slurp_data_file(const std::string& path)
{
const std::string fsname = Test::data_file(path);
std::ifstream file(fsname.c_str(), std::ios::binary);
if(!file.good())
{
throw Test_Error("Error reading from " + fsname);
}
std::vector<uint8_t> contents;
while(file.good())
{
std::vector<uint8_t> buf(4096);
file.read(reinterpret_cast<char*>(buf.data()), buf.size());
size_t got = file.gcount();
if(got == 0 && file.eof())
{
break;
}
contents.insert(contents.end(), buf.data(), buf.data() + got);
}
return contents;
}
std::shared_ptr<const Botan::X509_Certificate> load_test_X509_cert(const std::string& path)
{
return std::make_shared<const Botan::X509_Certificate>(Test::data_file(path));
}
std::shared_ptr<const Botan::OCSP::Response> load_test_OCSP_resp(const std::string& path)
{
return std::make_shared<const Botan::OCSP::Response>(slurp_data_file(path));
}
Test::Result test_response_parsing()
{
Test::Result result("OCSP response parsing");
// Simple parsing tests
const std::vector<std::string> ocsp_input_paths =
{
"ocsp/resp1.der",
"ocsp/resp2.der",
"ocsp/resp3.der"
};
for(std::string ocsp_input_path : ocsp_input_paths)
{
try
{
Botan::OCSP::Response resp(slurp_data_file(ocsp_input_path));
result.test_success("Parsed input " + ocsp_input_path);
}
catch(Botan::Exception& e)
{
result.test_failure("Parsing failed", e.what());
}
}
return result;
}
Test::Result test_response_certificate_access()
{
Test::Result result("OCSP response certificate access");
try
{
Botan::OCSP::Response resp1(slurp_data_file("ocsp/resp1.der"));
const auto &certs1 = resp1.certificates();
if(result.test_eq("Expected count of certificates", certs1.size(), 1))
{
const auto cert = certs1.front();
const Botan::X509_DN expected_dn({std::make_pair(
"X520.CommonName",
"Symantec Class 3 EV SSL CA - G3 OCSP Responder")});
const bool matches = cert.subject_dn() == expected_dn;
result.test_eq("CN matches expected", matches, true);
}
Botan::OCSP::Response resp2(slurp_data_file("ocsp/resp2.der"));
const auto &certs2 = resp2.certificates();
result.test_eq("Expect no certificates", certs2.size(), 0);
}
catch(Botan::Exception& e)
{
result.test_failure("Parsing failed", e.what());
}
return result;
}
Test::Result test_request_encoding()
{
Test::Result result("OCSP request encoding");
const Botan::X509_Certificate end_entity(Test::data_file("ocsp/gmail.pem"));
const Botan::X509_Certificate issuer(Test::data_file("ocsp/google_g2.pem"));
try
{
const Botan::OCSP::Request bogus(end_entity, issuer);
result.test_failure("Bad arguments (swapped end entity, issuer) accepted");
}
catch(Botan::Invalid_Argument&)
{
result.test_success("Bad arguments rejected");
}
const std::string expected_request =
"ME4wTKADAgEAMEUwQzBBMAkGBSsOAwIaBQAEFPLgavmFih2NcJtJGSN6qbUaKH5kBBRK3QYWG7z2aLV29YG2u2IaulqBLwIIQkg+DF+RYMY=";
const Botan::OCSP::Request req1(issuer, end_entity);
result.test_eq("Encoded OCSP request",
req1.base64_encode(),
expected_request);
const Botan::OCSP::Request req2(issuer, BigInt::decode(end_entity.serial_number()));
result.test_eq("Encoded OCSP request",
req2.base64_encode(),
expected_request);
return result;
}
Test::Result test_response_verification()
{
Test::Result result("OCSP request check");
std::shared_ptr<const Botan::X509_Certificate> ee = load_test_X509_cert("ocsp/randombit.pem");
std::shared_ptr<const Botan::X509_Certificate> ca = load_test_X509_cert("ocsp/letsencrypt.pem");
std::shared_ptr<const Botan::X509_Certificate> trust_root = load_test_X509_cert("ocsp/geotrust.pem");
const std::vector<std::shared_ptr<const Botan::X509_Certificate>> cert_path = { ee, ca, trust_root };
std::shared_ptr<const Botan::OCSP::Response> ocsp = load_test_OCSP_resp("ocsp/randombit_ocsp.der");
Botan::Certificate_Store_In_Memory certstore;
certstore.add_certificate(trust_root);
// Some arbitrary time within the validity period of the test certs
const auto valid_time = Botan::calendar_point(2016, 11, 20, 8, 30, 0).to_std_timepoint();
const auto ocsp_status = Botan::PKIX::check_ocsp(cert_path, { ocsp }, { &certstore }, valid_time);
if(result.test_eq("Expected size of ocsp_status", ocsp_status.size(), 1))
{
if(result.test_eq("Expected size of ocsp_status[0]", ocsp_status[0].size(), 1))
{
result.confirm("Status good", ocsp_status[0].count(Botan::Certificate_Status_Code::OCSP_RESPONSE_GOOD));
}
}
return result;
}
#if defined(BOTAN_HAS_ONLINE_REVOCATION_CHECKS)
Test::Result test_online_request()
{
Test::Result result("OCSP online check");
// Expired end-entity certificate:
std::shared_ptr<const Botan::X509_Certificate> ee = load_test_X509_cert("ocsp/randombit.pem");
std::shared_ptr<const Botan::X509_Certificate> ca = load_test_X509_cert("ocsp/letsencrypt.pem");
std::shared_ptr<const Botan::X509_Certificate> trust_root = load_test_X509_cert("ocsp/identrust.pem");
const std::vector<std::shared_ptr<const Botan::X509_Certificate>> cert_path = { ee, ca, trust_root };
Botan::Certificate_Store_In_Memory certstore;
certstore.add_certificate(trust_root);
typedef std::chrono::system_clock Clock;
const auto ocspTimeout = std::chrono::milliseconds(3000);
auto ocsp_status = Botan::PKIX::check_ocsp_online(cert_path, { &certstore }, Clock::now(), ocspTimeout, true);
if(result.test_eq("Expected size of ocsp_status", ocsp_status.size(), 2))
{
if(result.test_eq("Expected size of ocsp_status[0]", ocsp_status[0].size(), 1))
{
result.confirm("Status expired", ocsp_status[0].count(Botan::Certificate_Status_Code::OCSP_HAS_EXPIRED));
}
if(result.test_eq("Expected size of ocsp_status[1]", ocsp_status[1].size(), 1))
{
result.confirm("Status good", ocsp_status[1].count(Botan::Certificate_Status_Code::OCSP_RESPONSE_GOOD));
}
}
return result;
}
#endif
public:
std::vector<Test::Result> run() override
{
std::vector<Test::Result> results;
results.push_back(test_request_encoding());
results.push_back(test_response_parsing());
results.push_back(test_response_certificate_access());
results.push_back(test_response_verification());
#if defined(BOTAN_HAS_ONLINE_REVOCATION_CHECKS)
if(Test::run_online_tests())
{
results.push_back(test_online_request());
}
#endif
return results;
}
};
BOTAN_REGISTER_TEST("ocsp", OCSP_Tests);
#endif
}
|
