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
|
/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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 <config.h>
#include <stdio.h>
#include <LongBow/unit-test.h>
#include <parc/testing/parc_ObjectTesting.h>
#include "../parc_DiffieHellmanKeyShare.c"
#include <parc/algol/parc_SafeMemory.h>
#include <parc/security/parc_CryptoHashType.h>
#include <parc/algol/parc_Buffer.h>
LONGBOW_TEST_RUNNER(parc_DiffieHellmanKeyShare)
{
LONGBOW_RUN_TEST_FIXTURE(Global);
}
LONGBOW_TEST_RUNNER_SETUP(parc_DiffieHellmanKeyShare)
{
return LONGBOW_STATUS_SUCCEEDED;
}
// The Test Runner calls this function once after all the Test Fixtures are run.
LONGBOW_TEST_RUNNER_TEARDOWN(parc_DiffieHellmanKeyShare)
{
return LONGBOW_STATUS_SUCCEEDED;
}
LONGBOW_TEST_FIXTURE(Global)
{
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_AcquireRelease);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_Create);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_SerializePublicKey);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_SerializeDeserializePublicKey);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_DeserializePublicKey_ErrorWrongGroup);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_DeserializePublicKey_ErrorInvalidEncoding);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_Combine);
LONGBOW_RUN_TEST_CASE(Global, parcDiffieHellmanKeyShare_Combine_Error_PublicKeyDeserializationFail);
LONGBOW_RUN_TEST_CASE(Global, _parcDiffieHellmanKeyShare_HashSharedSecret);
}
LONGBOW_TEST_FIXTURE_SETUP(Global)
{
return LONGBOW_STATUS_SUCCEEDED;
}
LONGBOW_TEST_FIXTURE_TEARDOWN(Global)
{
if (parcSafeMemory_ReportAllocation(STDOUT_FILENO) != 0) {
printf("('%s' leaks memory by %d (allocs - frees)) ", longBowTestCase_GetName(testCase), parcMemory_Outstanding());
return LONGBOW_STATUS_MEMORYLEAK;
}
return LONGBOW_STATUS_SUCCEEDED;
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_AcquireRelease)
{
PARCDiffieHellmanKeyShare *dh = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
parcObjectTesting_AssertAcquireReleaseContract(parcDiffieHellmanKeyShare_Acquire, dh);
parcDiffieHellmanKeyShare_Release(&dh);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_Create)
{
PARCDiffieHellmanKeyShare *dh = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(dh, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
parcDiffieHellmanKeyShare_Release(&dh);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_SerializePublicKey)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
PARCBuffer *publicKey = parcDiffieHellmanKeyShare_SerializePublicKey(keyShare);
assertNotNull(publicKey, "Expected the public key to be serialized to a non-NULL PARCBuffer");
const size_t sec521r1KeySize = 266;
assertTrue(parcBuffer_Remaining(publicKey) == sec521r1KeySize, "Expected the public key size to be %zu, got %zu", sec521r1KeySize, parcBuffer_Remaining(publicKey));
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_SerializeDeserializePublicKey)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
PARCBuffer *publicKey = parcDiffieHellmanKeyShare_SerializePublicKey(keyShare);
assertNotNull(publicKey, "Expected the public key to be serialized to a non-NULL PARCBuffer");
const size_t sec521r1KeySize = 266;
assertTrue(parcBuffer_Remaining(publicKey) == sec521r1KeySize, "Expected the public key size to be %zu, got %zu", sec521r1KeySize, parcBuffer_Remaining(publicKey));
// Deserialize the public key to get the OpenSSL EVP_PKEY type
EVP_PKEY *rawPublicKey = _parcDiffieHellman_DeserializePublicKeyShare(keyShare, publicKey);
assertNotNull(rawPublicKey, "Expected the raw public key to be deserialized");
// Extract the public portions of the private key share and public key share
EC_KEY *publicEcKey = EVP_PKEY_get1_EC_KEY(rawPublicKey);
const EC_POINT *publicPoint = EC_KEY_get0_public_key(publicEcKey);
EC_KEY *privateEcKey = EVP_PKEY_get1_EC_KEY(keyShare->privateKey);
const EC_POINT *privatePoint = EC_KEY_get0_public_key(privateEcKey);
// Compare the public portions of the key shares
const EC_GROUP *group = EC_KEY_get0_group(publicEcKey);
BN_CTX *bigNumberContext = BN_CTX_new();
int equalResult = EC_POINT_cmp(group, publicPoint, privatePoint, bigNumberContext);
assertTrue(equalResult == 0, "Expected the two public points to be equal.");
BN_CTX_free(bigNumberContext);
EVP_PKEY_free(rawPublicKey);
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_DeserializePublicKey_ErrorWrongGroup)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
PARCBuffer *publicKey = parcDiffieHellmanKeyShare_SerializePublicKey(keyShare);
assertNotNull(publicKey, "Expected the public key to be serialized to a non-NULL PARCBuffer");
PARCDiffieHellmanKeyShare *alternateKeyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Prime256v1);
// Deserialize the public key with a different group and hit the failure
EVP_PKEY *rawPublicKey = _parcDiffieHellman_DeserializePublicKeyShare(alternateKeyShare, publicKey);
assertNull(rawPublicKey, "Expected the raw public key to not be deserialized");
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
parcDiffieHellmanKeyShare_Release(&alternateKeyShare);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_DeserializePublicKey_ErrorInvalidEncoding)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
// Deserialize the public key with a different group
PARCBuffer *publicKey = parcBuffer_Allocate(32);
EVP_PKEY *rawPublicKey = _parcDiffieHellman_DeserializePublicKeyShare(keyShare, publicKey);
assertNull(rawPublicKey, "Expected the raw public key to not be deserialized");
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_Combine)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
PARCBuffer *publicKey = parcDiffieHellmanKeyShare_SerializePublicKey(keyShare);
assertNotNull(publicKey, "Expected the public key to be serialized to a non-NULL PARCBuffer");
PARCBuffer *sharedSecret = parcDiffieHellmanKeyShare_Combine(keyShare, publicKey);
assertNotNull(sharedSecret, "Expected the shared secret to be non-NULL");
const size_t secretSize = 32; // = 256 / 8 bytes
assertTrue(parcBuffer_Remaining(sharedSecret) == secretSize, "invalid size");
parcBuffer_Release(&sharedSecret);
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
}
LONGBOW_TEST_CASE(Global, parcDiffieHellmanKeyShare_Combine_Error_PublicKeyDeserializationFail)
{
PARCDiffieHellmanKeyShare *keyShare = parcDiffieHellmanKeyShare_Create(PARCDiffieHellmanGroup_Secp521r1);
assertNotNull(keyShare, "Expected a non-NULL PARCDiffieHellmanKeyShare instance");
PARCBuffer *publicKey = parcBuffer_Allocate(32);
PARCBuffer *sharedSecret = parcDiffieHellmanKeyShare_Combine(keyShare, publicKey);
assertNull(sharedSecret, "Expected the shared secret to be non-NULL");
parcBuffer_Release(&publicKey);
parcDiffieHellmanKeyShare_Release(&keyShare);
}
LONGBOW_TEST_CASE(Global, _parcDiffieHellmanKeyShare_HashSharedSecret)
{
PARCBuffer *input = parcBuffer_Allocate(1024);
PARCBuffer *digestValue = _parcDiffieHellmanKeyShare_HashSharedSecret(input);
size_t digestLength = parcBuffer_Remaining(digestValue);
size_t expectedLength = 32; // 256 bits for PARCCryptoHashType_SHA256
assertTrue(digestLength == 32, "Expected a %zu byte digest, got %zu", expectedLength, digestLength);
PARCCryptoHasher *hasher = parcCryptoHasher_Create(PARCCryptoHashType_SHA256);
parcCryptoHasher_Init(hasher);
parcCryptoHasher_UpdateBuffer(hasher, input);
PARCCryptoHash *digest = parcCryptoHasher_Finalize(hasher);
PARCBuffer *computedDigest = parcBuffer_Acquire(parcCryptoHash_GetDigest(digest));
parcCryptoHash_Release(&digest);
parcCryptoHasher_Release(&hasher);
assertTrue(parcBuffer_Equals(digestValue, computedDigest), "Expected the secret input to be hashed correctly.");
parcBuffer_Release(&input);
parcBuffer_Release(&digestValue);
parcBuffer_Release(&computedDigest);
}
int
main(int argc, char *argv[argc])
{
LongBowRunner *testRunner = LONGBOW_TEST_RUNNER_CREATE(parc_DiffieHellmanKeyShare);
int exitStatus = LONGBOW_TEST_MAIN(argc, argv, testRunner);
longBowTestRunner_Destroy(&testRunner);
exit(exitStatus);
}
|
