1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include <memory>
20
21 #include <adb/pairing/aes_128_gcm.h>
22 #include <openssl/rand.h>
23
24 namespace adb {
25 namespace pairing {
26
TEST(Aes128GcmTest,init_null_material)27 TEST(Aes128GcmTest, init_null_material) {
28 std::unique_ptr<Aes128Gcm> cipher;
29 ASSERT_DEATH({ cipher.reset(new Aes128Gcm(nullptr, 42)); }, "");
30 }
31
TEST(Aes128GcmTest,init_empty_material)32 TEST(Aes128GcmTest, init_empty_material) {
33 uint8_t material[64];
34 std::unique_ptr<Aes128Gcm> cipher;
35 ASSERT_DEATH({ cipher.reset(new Aes128Gcm(material, 0)); }, "");
36 }
37
TEST(Aes128GcmTest,encrypt_decrypt)38 TEST(Aes128GcmTest, encrypt_decrypt) {
39 const uint8_t msg[] = "alice and bob, sitting in a binary tree";
40 uint8_t material[256];
41 uint8_t encrypted[1024];
42 uint8_t out_buf[1024] = {};
43
44 RAND_bytes(material, sizeof(material));
45 Aes128Gcm alice(material, sizeof(material));
46 Aes128Gcm bob(material, sizeof(material));
47 ;
48
49 ASSERT_GE(alice.EncryptedSize(sizeof(msg)), sizeof(msg));
50 auto encrypted_size = alice.Encrypt(msg, sizeof(msg), encrypted, sizeof(encrypted));
51 ASSERT_TRUE(encrypted_size.has_value());
52 ASSERT_GT(*encrypted_size, 0);
53 size_t out_size = sizeof(out_buf);
54 ASSERT_GE(bob.DecryptedSize(*encrypted_size), sizeof(msg));
55 auto decrypted_size = bob.Decrypt(encrypted, *encrypted_size, out_buf, out_size);
56 ASSERT_TRUE(decrypted_size.has_value());
57 ASSERT_EQ(sizeof(msg), *decrypted_size);
58 ASSERT_STREQ(reinterpret_cast<const char*>(msg), reinterpret_cast<const char*>(out_buf));
59 }
60
61 } // namespace pairing
62 } // namespace adb
63