1 // 2 // Copyright (C) 2012 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 "shill/crypto_des_cbc.h" 18 19 #include <string> 20 21 #include <base/files/file_util.h> 22 #include <base/files/scoped_temp_dir.h> 23 #include <gtest/gtest.h> 24 25 using base::FilePath; 26 using std::string; 27 using std::vector; 28 using testing::Test; 29 30 namespace shill { 31 32 namespace { 33 const char kTestKey[] = "12345678"; 34 const char kTestIV[] = "abcdefgh"; 35 const char kEmptyPlain[] = ""; 36 const char kEmptyCipher[] = "02:4+O1a2KJVRM="; 37 const char kEmptyCipherNoSentinel[] = "02:lNRDa8O1tpM="; 38 const char kPlainText[] = "Hello world! ~123"; 39 const char kCipherText[] = "02:MbxzeBqK3HVeS3xfjyhbe47Xx+szYgOp"; 40 const char kPlainVersion1[] = "This is a test!"; 41 const char kCipherVersion1[] = "bKlHDISdHMFfmfgBTT5I0w=="; 42 } // namespace 43 44 class CryptoDESCBCTest : public Test { 45 public: 46 CryptoDESCBCTest() {} 47 48 protected: 49 CryptoDESCBC crypto_; 50 }; 51 52 TEST_F(CryptoDESCBCTest, GetID) { 53 EXPECT_EQ(CryptoDESCBC::kID, crypto_.GetID()); 54 } 55 56 TEST_F(CryptoDESCBCTest, LoadKeyMatter) { 57 base::ScopedTempDir temp_dir; 58 ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); 59 const char kKeyMatterFile[] = "key-matter-file"; 60 FilePath key_matter = temp_dir.path().Append(kKeyMatterFile); 61 62 EXPECT_FALSE(crypto_.LoadKeyMatter(key_matter)); 63 EXPECT_TRUE(crypto_.key().empty()); 64 EXPECT_TRUE(crypto_.iv().empty()); 65 66 string matter = string(kTestIV) + kTestKey; 67 68 base::WriteFile(key_matter, matter.data(), matter.size() - 1); 69 EXPECT_FALSE(crypto_.LoadKeyMatter(key_matter)); 70 EXPECT_TRUE(crypto_.key().empty()); 71 EXPECT_TRUE(crypto_.iv().empty()); 72 73 base::WriteFile(key_matter, matter.data(), matter.size()); 74 EXPECT_TRUE(crypto_.LoadKeyMatter(key_matter)); 75 EXPECT_EQ(kTestKey, string(crypto_.key().begin(), crypto_.key().end())); 76 EXPECT_EQ(kTestIV, string(crypto_.iv().begin(), crypto_.iv().end())); 77 78 const char kKey2[] = "ABCDEFGH"; 79 const char kIV2[] = "87654321"; 80 matter = string("X") + kIV2 + kKey2; 81 82 base::WriteFile(key_matter, matter.data(), matter.size()); 83 EXPECT_TRUE(crypto_.LoadKeyMatter(key_matter)); 84 EXPECT_EQ(kKey2, string(crypto_.key().begin(), crypto_.key().end())); 85 EXPECT_EQ(kIV2, string(crypto_.iv().begin(), crypto_.iv().end())); 86 87 base::WriteFile(key_matter, " ", 1); 88 EXPECT_FALSE(crypto_.LoadKeyMatter(key_matter)); 89 EXPECT_TRUE(crypto_.key().empty()); 90 EXPECT_TRUE(crypto_.iv().empty()); 91 } 92 93 TEST_F(CryptoDESCBCTest, Encrypt) { 94 crypto_.key_.assign(kTestKey, kTestKey + strlen(kTestKey)); 95 crypto_.iv_.assign(kTestIV, kTestIV + strlen(kTestIV)); 96 97 string ciphertext; 98 EXPECT_FALSE(crypto_.Encrypt(kPlainText, &ciphertext)); 99 } 100 101 TEST_F(CryptoDESCBCTest, Decrypt) { 102 crypto_.key_.assign(kTestKey, kTestKey + strlen(kTestKey)); 103 crypto_.iv_.assign(kTestIV, kTestIV + strlen(kTestIV)); 104 105 string plaintext; 106 EXPECT_TRUE(crypto_.Decrypt(kEmptyCipher, &plaintext)); 107 EXPECT_EQ(kEmptyPlain, plaintext); 108 EXPECT_TRUE(crypto_.Decrypt(kCipherText, &plaintext)); 109 EXPECT_EQ(kPlainText, plaintext); 110 EXPECT_TRUE(crypto_.Decrypt(kCipherVersion1, &plaintext)); 111 EXPECT_EQ(kPlainVersion1, plaintext); 112 113 EXPECT_FALSE(crypto_.Decrypt("random", &plaintext)); 114 EXPECT_FALSE(crypto_.Decrypt("02:random", &plaintext)); 115 EXPECT_FALSE(crypto_.Decrypt("~", &plaintext)); 116 EXPECT_FALSE(crypto_.Decrypt("02:~", &plaintext)); 117 EXPECT_FALSE(crypto_.Decrypt(kEmptyPlain, &plaintext)); 118 EXPECT_FALSE(crypto_.Decrypt(kEmptyCipherNoSentinel, &plaintext)); 119 120 // echo -n 12345678 | base64 121 EXPECT_FALSE(crypto_.Decrypt("MTIzNDU2Nzg=", &plaintext)); 122 } 123 124 } // namespace shill 125
