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
|
// Copyright 2019 Google LLC
//
// 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.
//
///////////////////////////////////////////////////////////////////////////////
#include "tink/core/private_key_manager_impl.h"
#include <memory>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/status/status.h"
#include "tink/core/key_manager_impl.h"
#include "tink/core/private_key_type_manager.h"
#include "tink/registry.h"
#include "tink/subtle/aes_gcm_boringssl.h"
#include "tink/subtle/random.h"
#include "tink/util/status.h"
#include "tink/util/statusor.h"
#include "tink/util/test_matchers.h"
#include "tink/util/test_util.h"
#include "tink/util/validation.h"
#include "proto/ecdsa.pb.h"
namespace crypto {
namespace tink {
namespace internal {
namespace {
using ::crypto::tink::test::StatusIs;
using ::google::crypto::tink::EcdsaKeyFormat;
using ::google::crypto::tink::EcdsaPrivateKey;
using ::google::crypto::tink::EcdsaPublicKey;
using ::google::crypto::tink::EcdsaSignatureEncoding;
using ::testing::Eq;
using ::testing::HasSubstr;
using ::testing::Return;
} // namespace
// Placeholders for the primitives. We don't really want to test anything with
// these except that things compile and List<PrivatePrimitive> is never confused
// with List<PublicPrimitive> in private_key_manager_impl.
// NOTE: These are outside of the anonymous namespace to allow compiling with
// MSVC.
class PrivatePrimitive {};
class PublicPrimitive {};
namespace {
class ExamplePrivateKeyTypeManager
: public PrivateKeyTypeManager<EcdsaPrivateKey, EcdsaKeyFormat,
EcdsaPublicKey, List<PrivatePrimitive>> {
public:
class PrivatePrimitiveFactory : public PrimitiveFactory<PrivatePrimitive> {
public:
crypto::tink::util::StatusOr<std::unique_ptr<PrivatePrimitive>> Create(
const EcdsaPrivateKey& key) const override {
return util::Status(absl::StatusCode::kUnimplemented, "Not implemented");
}
};
ExamplePrivateKeyTypeManager()
: PrivateKeyTypeManager(absl::make_unique<PrivatePrimitiveFactory>()) {}
google::crypto::tink::KeyData::KeyMaterialType key_material_type()
const override {
return google::crypto::tink::KeyData::ASYMMETRIC_PRIVATE;
}
MOCK_METHOD(uint32_t, get_version, (), (const, override));
// We mock out ValidateKey and ValidateKeyFormat so that we can easily test
// proper behavior in case they return an error.
MOCK_METHOD(crypto::tink::util::Status, ValidateKey,
(const EcdsaPrivateKey& key), (const, override));
MOCK_METHOD(crypto::tink::util::Status, ValidateKeyFormat,
(const EcdsaKeyFormat& key), (const, override));
const std::string& get_key_type() const override { return kKeyType; }
crypto::tink::util::StatusOr<EcdsaPrivateKey> CreateKey(
const EcdsaKeyFormat& key_format) const override {
EcdsaPublicKey public_key;
*public_key.mutable_params() = key_format.params();
EcdsaPrivateKey result;
*result.mutable_public_key() = public_key;
return result;
}
crypto::tink::util::StatusOr<EcdsaPublicKey> GetPublicKey(
const EcdsaPrivateKey& private_key) const override {
return private_key.public_key();
}
private:
const std::string kKeyType =
"type.googleapis.com/google.crypto.tink.EcdsaPublicKey";
};
class TestPublicKeyTypeManager
: public KeyTypeManager<EcdsaPublicKey, void, List<PublicPrimitive>> {
public:
class PublicPrimitiveFactory : public PrimitiveFactory<PublicPrimitive> {
public:
crypto::tink::util::StatusOr<std::unique_ptr<PublicPrimitive>> Create(
const EcdsaPublicKey& key) const override {
return util::Status(absl::StatusCode::kUnimplemented, "Not implemented");
}
};
TestPublicKeyTypeManager()
: KeyTypeManager(absl::make_unique<PublicPrimitiveFactory>()) {}
google::crypto::tink::KeyData::KeyMaterialType key_material_type()
const override {
return google::crypto::tink::KeyData::ASYMMETRIC_PRIVATE;
}
MOCK_METHOD(uint32_t, get_version, (), (const, override));
// We mock out ValidateKey and ValidateKeyFormat so that we can easily test
// proper behavior in case they return an error.
MOCK_METHOD(crypto::tink::util::Status, ValidateKey,
(const EcdsaPublicKey& key), (const, override));
const std::string& get_key_type() const override { return kKeyType; }
private:
const std::string kKeyType =
"type.googleapis.com/google.crypto.tink.EcdsaPublicKey";
};
TEST(PrivateKeyManagerImplTest, FactoryNewKeyFromMessage) {
ExamplePrivateKeyTypeManager private_km;
TestPublicKeyTypeManager public_km;
std::unique_ptr<KeyManager<PrivatePrimitive>> key_manager =
MakePrivateKeyManager<PrivatePrimitive>(&private_km, &public_km);
EcdsaKeyFormat key_format;
key_format.mutable_params()->set_encoding(EcdsaSignatureEncoding::DER);
auto key = key_manager->get_key_factory().NewKey(key_format).value();
EXPECT_THAT(
dynamic_cast<EcdsaPrivateKey&>(*key).public_key().params().encoding(),
Eq(EcdsaSignatureEncoding::DER));
}
TEST(PrivateKeyManagerImplTest, GetPublicKeyData) {
ExamplePrivateKeyTypeManager private_km;
TestPublicKeyTypeManager public_km;
std::unique_ptr<KeyManager<PrivatePrimitive>> key_manager =
MakePrivateKeyManager<PrivatePrimitive>(&private_km, &public_km);
EcdsaPrivateKey private_key;
private_key.mutable_public_key()->mutable_params()->set_encoding(
EcdsaSignatureEncoding::DER);
auto key_data =
dynamic_cast<const PrivateKeyFactory&>(key_manager->get_key_factory())
.GetPublicKeyData(private_key.SerializeAsString())
.value();
ASSERT_THAT(key_data->type_url(), Eq(public_km.get_key_type()));
EcdsaPublicKey public_key;
public_key.ParseFromString(key_data->value());
EXPECT_THAT(public_key.params().encoding(), Eq(EcdsaSignatureEncoding::DER));
}
TEST(PrivateKeyManagerImplTest, GetPublicKeyDataValidatePrivateKey) {
ExamplePrivateKeyTypeManager private_km;
TestPublicKeyTypeManager public_km;
EXPECT_CALL(private_km, ValidateKey)
.WillOnce(Return(util::Status(absl::StatusCode::kOutOfRange,
"GetPublicKeyDataValidatePrivateKey")));
std::unique_ptr<KeyManager<PrivatePrimitive>> key_manager =
MakePrivateKeyManager<PrivatePrimitive>(&private_km, &public_km);
EXPECT_THAT(
dynamic_cast<const PrivateKeyFactory&>(key_manager->get_key_factory())
.GetPublicKeyData(EcdsaPrivateKey().SerializeAsString())
.status(),
StatusIs(absl::StatusCode::kOutOfRange,
HasSubstr("GetPublicKeyDataValidatePrivateKey")));
}
TEST(PrivateKeyManagerImplTest, PublicKeyManagerCanHaveShortLifetime) {
ExamplePrivateKeyTypeManager private_km;
std::unique_ptr<KeyManager<PrivatePrimitive>> key_manager;
{
TestPublicKeyTypeManager public_km;
key_manager =
MakePrivateKeyManager<PrivatePrimitive>(&private_km, &public_km);
// Let the public_km go out of scope; the key_manager should still work.
}
EcdsaKeyFormat key_format;
key_format.mutable_params()->set_encoding(EcdsaSignatureEncoding::DER);
auto key = key_manager->get_key_factory().NewKey(key_format).value();
EXPECT_THAT(
dynamic_cast<EcdsaPrivateKey&>(*key).public_key().params().encoding(),
Eq(EcdsaSignatureEncoding::DER));
}
} // namespace
} // namespace internal
} // namespace tink
} // namespace crypto
|
