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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chromeos/cryptohome/cryptohome_library.h" | 5 #include "chromeos/cryptohome/cryptohome_library.h" |
| 6 | 6 |
| 7 #include <map> | 7 #include <map> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/chromeos/chromeos_version.h" | |
| 11 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
| 12 #include "base/strings/string_number_conversions.h" | 11 #include "base/strings/string_number_conversions.h" |
| 13 #include "base/strings/string_util.h" | 12 #include "base/strings/string_util.h" |
| 13 #include "base/sys_info.h" |
| 14 #include "chromeos/dbus/cryptohome_client.h" | 14 #include "chromeos/dbus/cryptohome_client.h" |
| 15 #include "chromeos/dbus/dbus_thread_manager.h" | 15 #include "chromeos/dbus/dbus_thread_manager.h" |
| 16 #include "crypto/encryptor.h" | 16 #include "crypto/encryptor.h" |
| 17 #include "crypto/nss_util.h" | 17 #include "crypto/nss_util.h" |
| 18 #include "crypto/sha2.h" | 18 #include "crypto/sha2.h" |
| 19 #include "crypto/symmetric_key.h" | 19 #include "crypto/symmetric_key.h" |
| 20 | 20 |
| 21 namespace chromeos { | 21 namespace chromeos { |
| 22 | 22 |
| 23 namespace { | 23 namespace { |
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| 115 return result; | 115 return result; |
| 116 } | 116 } |
| 117 | 117 |
| 118 virtual std::string GetSystemSalt() OVERRIDE { | 118 virtual std::string GetSystemSalt() OVERRIDE { |
| 119 LoadSystemSalt(); // no-op if it's already loaded. | 119 LoadSystemSalt(); // no-op if it's already loaded. |
| 120 return system_salt_; | 120 return system_salt_; |
| 121 } | 121 } |
| 122 | 122 |
| 123 virtual std::string EncryptWithSystemSalt(const std::string& token) OVERRIDE { | 123 virtual std::string EncryptWithSystemSalt(const std::string& token) OVERRIDE { |
| 124 // Don't care about token encryption while debugging. | 124 // Don't care about token encryption while debugging. |
| 125 if (!base::chromeos::IsRunningOnChromeOS()) | 125 if (!base::SysInfo::IsRunningOnChromeOS()) |
| 126 return token; | 126 return token; |
| 127 | 127 |
| 128 if (!LoadSystemSaltKey()) { | 128 if (!LoadSystemSaltKey()) { |
| 129 LOG(WARNING) << "System salt key is not available for encrypt."; | 129 LOG(WARNING) << "System salt key is not available for encrypt."; |
| 130 return std::string(); | 130 return std::string(); |
| 131 } | 131 } |
| 132 return EncryptTokenWithKey(system_salt_key_.get(), | 132 return EncryptTokenWithKey(system_salt_key_.get(), |
| 133 system_salt_, | 133 system_salt_, |
| 134 token); | 134 token); |
| 135 } | 135 } |
| 136 | 136 |
| 137 virtual std::string DecryptWithSystemSalt( | 137 virtual std::string DecryptWithSystemSalt( |
| 138 const std::string& encrypted_token_hex) OVERRIDE { | 138 const std::string& encrypted_token_hex) OVERRIDE { |
| 139 // Don't care about token encryption while debugging. | 139 // Don't care about token encryption while debugging. |
| 140 if (!base::chromeos::IsRunningOnChromeOS()) | 140 if (!base::SysInfo::IsRunningOnChromeOS()) |
| 141 return encrypted_token_hex; | 141 return encrypted_token_hex; |
| 142 | 142 |
| 143 if (!LoadSystemSaltKey()) { | 143 if (!LoadSystemSaltKey()) { |
| 144 LOG(WARNING) << "System salt key is not available for decrypt."; | 144 LOG(WARNING) << "System salt key is not available for decrypt."; |
| 145 return std::string(); | 145 return std::string(); |
| 146 } | 146 } |
| 147 return DecryptTokenWithKey(system_salt_key_.get(), | 147 return DecryptTokenWithKey(system_salt_key_.get(), |
| 148 system_salt_, | 148 system_salt_, |
| 149 encrypted_token_hex); | 149 encrypted_token_hex); |
| 150 } | 150 } |
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| 310 | 310 |
| 311 CryptohomeLibrary::CryptohomeLibrary() {} | 311 CryptohomeLibrary::CryptohomeLibrary() {} |
| 312 CryptohomeLibrary::~CryptohomeLibrary() {} | 312 CryptohomeLibrary::~CryptohomeLibrary() {} |
| 313 | 313 |
| 314 static CryptohomeLibrary* g_cryptohome_library = NULL; | 314 static CryptohomeLibrary* g_cryptohome_library = NULL; |
| 315 static CryptohomeLibrary* g_test_cryptohome_library = NULL; | 315 static CryptohomeLibrary* g_test_cryptohome_library = NULL; |
| 316 | 316 |
| 317 // static | 317 // static |
| 318 void CryptohomeLibrary::Initialize() { | 318 void CryptohomeLibrary::Initialize() { |
| 319 CHECK(!g_cryptohome_library); | 319 CHECK(!g_cryptohome_library); |
| 320 if (base::chromeos::IsRunningOnChromeOS()) | 320 if (base::SysInfo::IsRunningOnChromeOS()) |
| 321 g_cryptohome_library = new CryptohomeLibraryImpl(); | 321 g_cryptohome_library = new CryptohomeLibraryImpl(); |
| 322 else | 322 else |
| 323 g_cryptohome_library = new CryptohomeLibraryStubImpl(); | 323 g_cryptohome_library = new CryptohomeLibraryStubImpl(); |
| 324 } | 324 } |
| 325 | 325 |
| 326 // static | 326 // static |
| 327 bool CryptohomeLibrary::IsInitialized() { | 327 bool CryptohomeLibrary::IsInitialized() { |
| 328 return g_cryptohome_library; | 328 return g_cryptohome_library; |
| 329 } | 329 } |
| 330 | 330 |
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| 349 CHECK(!g_test_cryptohome_library || !impl); | 349 CHECK(!g_test_cryptohome_library || !impl); |
| 350 g_test_cryptohome_library = impl; | 350 g_test_cryptohome_library = impl; |
| 351 } | 351 } |
| 352 | 352 |
| 353 // static | 353 // static |
| 354 CryptohomeLibrary* CryptohomeLibrary::GetTestImpl() { | 354 CryptohomeLibrary* CryptohomeLibrary::GetTestImpl() { |
| 355 return new CryptohomeLibraryStubImpl(); | 355 return new CryptohomeLibraryStubImpl(); |
| 356 } | 356 } |
| 357 | 357 |
| 358 } // namespace chromeos | 358 } // namespace chromeos |
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