1 /*
2 * Copyright (C) 2019 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
6 * in compliance with the License. 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 <resolv.h>
20
21 #include <adb/crypto/rsa_2048_key.h>
22 #include <android-base/logging.h>
23 #include <android-base/strings.h>
24 #include <crypto_utils/android_pubkey.h>
25 #include <openssl/err.h>
26 #include <openssl/rsa.h>
27 #include <openssl/sha.h>
28
29 namespace adb {
30 namespace crypto {
31
TEST(RSA2048Key,Smoke)32 TEST(RSA2048Key, Smoke) {
33 auto rsa_2048 = CreateRSA2048Key();
34 EXPECT_NE(rsa_2048, std::nullopt);
35 EXPECT_EQ(rsa_2048->GetKeyType(), adb::proto::KeyType::RSA_2048);
36 ASSERT_NE(rsa_2048->GetEvpPkey(), nullptr);
37
38 // The public key string format is expected to be: "<pub_key> <host_name>"
39 std::string pub_key_plus_name;
40 auto* rsa = EVP_PKEY_get0_RSA(rsa_2048->GetEvpPkey());
41 ASSERT_TRUE(CalculatePublicKey(&pub_key_plus_name, rsa));
42 std::vector<std::string> split = android::base::Split(std::string(pub_key_plus_name), " \t");
43 EXPECT_EQ(split.size(), 2);
44
45 LOG(INFO) << "pub_key=[" << pub_key_plus_name << "]";
46
47 std::string pemString = Key::ToPEMString(rsa_2048->GetEvpPkey());
48 ASSERT_FALSE(pemString.empty());
49
50 // Try to sign something and decode it.
51 const char token[SHA_DIGEST_LENGTH] = "abcdefghij123456789";
52 std::vector<uint8_t> sig(RSA_size(rsa));
53 unsigned sig_len;
54 EXPECT_EQ(RSA_sign(NID_sha1, reinterpret_cast<const uint8_t*>(token), sizeof(token), sig.data(),
55 &sig_len, rsa),
56 1);
57 sig.resize(sig_len);
58
59 {
60 uint8_t keybuf[ANDROID_PUBKEY_ENCODED_SIZE + 1];
61 const std::string& pubkey = split[0];
62 ASSERT_EQ(b64_pton(pubkey.c_str(), keybuf, sizeof(keybuf)), ANDROID_PUBKEY_ENCODED_SIZE);
63 RSA* key = nullptr;
64 ASSERT_TRUE(android_pubkey_decode(keybuf, ANDROID_PUBKEY_ENCODED_SIZE, &key));
65 EXPECT_EQ(RSA_verify(NID_sha1, reinterpret_cast<const uint8_t*>(token), sizeof(token),
66 sig.data(), sig.size(), key),
67 1);
68 RSA_free(key);
69 }
70 }
71
72 } // namespace crypto
73 } // namespace adb
74