test_group_session.cpp 7.59 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
/* Copyright 2016 OpenMarket Ltd
 *
 * 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.
 */
15
#include "olm/inbound_group_session.h"
16
17
18
19
20
21
#include "olm/outbound_group_session.h"
#include "unittest.hh"


int main() {

22
{
23
    TestCase test_case("Pickle outbound group session");
24
25

    size_t size = olm_outbound_group_session_size();
26
    uint8_t memory[size];
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
    OlmOutboundGroupSession *session = olm_outbound_group_session(memory);

    size_t pickle_length = olm_pickle_outbound_group_session_length(session);
    uint8_t pickle1[pickle_length];
    olm_pickle_outbound_group_session(session,
                                      "secret_key", 10,
                                      pickle1, pickle_length);
    uint8_t pickle2[pickle_length];
    memcpy(pickle2, pickle1, pickle_length);

    uint8_t buffer2[size];
    OlmOutboundGroupSession *session2 = olm_outbound_group_session(buffer2);
    size_t res = olm_unpickle_outbound_group_session(session2,
                                                     "secret_key", 10,
                                                     pickle2, pickle_length);
    assert_not_equals((size_t)-1, res);
    assert_equals(pickle_length,
                  olm_pickle_outbound_group_session_length(session2));
    olm_pickle_outbound_group_session(session2,
                                      "secret_key", 10,
                                      pickle2, pickle_length);

    assert_equals(pickle1, pickle2, pickle_length);
}

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
{
    TestCase test_case("Pickle inbound group session");

    size_t size = olm_inbound_group_session_size();
    uint8_t memory[size];
    OlmInboundGroupSession *session = olm_inbound_group_session(memory);

    size_t pickle_length = olm_pickle_inbound_group_session_length(session);
    uint8_t pickle1[pickle_length];
    olm_pickle_inbound_group_session(session,
                                     "secret_key", 10,
                                     pickle1, pickle_length);
    uint8_t pickle2[pickle_length];
    memcpy(pickle2, pickle1, pickle_length);

    uint8_t buffer2[size];
    OlmInboundGroupSession *session2 = olm_inbound_group_session(buffer2);
    size_t res = olm_unpickle_inbound_group_session(session2,
                                                    "secret_key", 10,
                                                    pickle2, pickle_length);
    assert_not_equals((size_t)-1, res);
    assert_equals(pickle_length,
                  olm_pickle_inbound_group_session_length(session2));
    olm_pickle_inbound_group_session(session2,
                                      "secret_key", 10,
                                      pickle2, pickle_length);

    assert_equals(pickle1, pickle2, pickle_length);
}

83
84
85
{
    TestCase test_case("Group message send/receive");

86
87
88
89
90
    uint8_t random_bytes[] =
        "0123456789ABDEF0123456789ABCDEF"
        "0123456789ABDEF0123456789ABCDEF"
        "0123456789ABDEF0123456789ABCDEF"
        "0123456789ABDEF0123456789ABCDEF"
Richard van der Hoff's avatar
Richard van der Hoff committed
91
        "0123456789ABDEF0123456789ABCDEF"
92
93
94
        "0123456789ABDEF0123456789ABCDEF";


95
    /* build the outbound session */
96
    size_t size = olm_outbound_group_session_size();
97
    uint8_t memory[size];
98
99
    OlmOutboundGroupSession *session = olm_outbound_group_session(memory);

Richard van der Hoff's avatar
Richard van der Hoff committed
100
    assert_equals((size_t)164,
101
102
103
104
105
106
                  olm_init_outbound_group_session_random_length(session));

    size_t res = olm_init_outbound_group_session(
        session, random_bytes, sizeof(random_bytes));
    assert_equals((size_t)0, res);

107
108
109
110
111
112
    assert_equals(0U, olm_outbound_group_session_message_index(session));
    size_t session_key_len = olm_outbound_group_session_key_length(session);
    uint8_t session_key[session_key_len];
    olm_outbound_group_session_key(session, session_key, session_key_len);

    /* encode the message */
113
114
115
116
117
118
    uint8_t plaintext[] = "Message";
    size_t plaintext_length = sizeof(plaintext) - 1;

    size_t msglen = olm_group_encrypt_message_length(
        session, plaintext_length);

119
    uint8_t msg[msglen];
120
121
122
    res = olm_group_encrypt(session, plaintext, plaintext_length,
                            msg, msglen);
    assert_equals(msglen, res);
123
124
125
126
127
128
129
130
131
132
133
134
    assert_equals(1U, olm_outbound_group_session_message_index(session));


    /* build the inbound session */
    size = olm_inbound_group_session_size();
    uint8_t inbound_session_memory[size];
    OlmInboundGroupSession *inbound_session =
        olm_inbound_group_session(inbound_session_memory);

    res = olm_init_inbound_group_session(
        inbound_session, 0U, session_key, session_key_len);
    assert_equals((size_t)0, res);
135

136
137
138
139
140
141
142
143
144
145
146
147
    /* decode the message */

    /* olm_group_decrypt_max_plaintext_length destroys the input so we have to
       copy it. */
    uint8_t msgcopy[msglen];
    memcpy(msgcopy, msg, msglen);
    size = olm_group_decrypt_max_plaintext_length(inbound_session, msgcopy, msglen);
    uint8_t plaintext_buf[size];
    res = olm_group_decrypt(inbound_session, msg, msglen,
                            plaintext_buf, size);
    assert_equals(plaintext_length, res);
    assert_equals(plaintext, plaintext_buf, res);
148
149
}

Richard van der Hoff's avatar
Richard van der Hoff committed
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
{
    TestCase test_case("Invalid signature group message");

    uint8_t plaintext[] = "Message";
    size_t plaintext_length = sizeof(plaintext) - 1;

    uint8_t session_key[] =
        "ATAxMjM0NTY3ODlBQkRFRjAxMjM0NTY3ODlBQkNERUYwMTIzNDU2Nzg5QUJERUYw"
        "MTIzNDU2Nzg5QUJDREVGMDEyMzQ1Njc4OUFCREVGMDEyMzQ1Njc4OUFCQ0RFRjAx"
        "MjM0NTY3ODlBQkRFRjAxMjM0NTY3ODlBQkNERUYwMTIzDRt2DUEOrg/H+yUGjDTq"
        "ryf8H1YF/BZjI04HwOVSZcY";

    uint8_t message[] =
        "AwgAEhAcbh6UpbByoyZxufQ+h2B+8XHMjhR69G8F4+qjMaFlnIXusJZX3r8LnROR"
        "G9T3DXFdbVuvIWrLyRfm4i8QRbe8VPwGRFG57B1CtmxanuP8bHtnnYqlwPsD";
    size_t msglen = sizeof(message)-1;

    /* build the inbound session */
    size_t size = olm_inbound_group_session_size();
    uint8_t inbound_session_memory[size];
    OlmInboundGroupSession *inbound_session =
        olm_inbound_group_session(inbound_session_memory);

    size_t res = olm_init_inbound_group_session(
        inbound_session, 0U, session_key, sizeof(session_key)-1
    );
    assert_equals((size_t)0, res);

    /* decode the message */

    /* olm_group_decrypt_max_plaintext_length destroys the input so we have to
       copy it. */
    uint8_t msgcopy[msglen];
    memcpy(msgcopy, message, msglen);
    size = olm_group_decrypt_max_plaintext_length(
        inbound_session, msgcopy, msglen
    );

    memcpy(msgcopy, message, msglen);
    uint8_t plaintext_buf[size];
    res = olm_group_decrypt(
        inbound_session, msgcopy, msglen, plaintext_buf, size
    );
    assert_equals(plaintext_length, res);
    assert_equals(plaintext, plaintext_buf, res);

    /* now twiddle the signature */
    message[msglen-1] = 'E';
    memcpy(msgcopy, message, msglen);
    assert_equals(
        size,
        olm_group_decrypt_max_plaintext_length(
            inbound_session, msgcopy, msglen
        )
    );

    memcpy(msgcopy, message, msglen);
    res = olm_group_decrypt(
        inbound_session, msgcopy, msglen,
        plaintext_buf, size
    );
    assert_equals((size_t)-1, res);
    assert_equals(
        std::string("BAD_SIGNATURE"),
        std::string(olm_inbound_group_session_last_error(inbound_session))
    );
}


219
}