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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_PIN_STORAGE_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_PIN_STORAGE_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/gtest_prod_util.h" | |
| 11 #include "base/time/time.h" | |
| 12 | |
| 13 class PrefRegistrySimple; | |
| 14 class PrefService; | |
| 15 | |
| 16 namespace chromeos { | |
| 17 | |
| 18 class PinStorageTestApi; | |
| 19 | |
| 20 namespace quick_unlock { | |
| 21 | |
| 22 class QuickUnlockStorage; | |
| 23 | |
| 24 class PinStorage { | |
| 25 public: | |
| 26 // TODO(sammiequon): Pull this value in from policy. See crbug.com/612271. | |
| 27 static const int kMaximumUnlockAttempts = 3; | |
| 28 | |
| 29 // Registers profile prefs. | |
| 30 static void RegisterProfilePrefs(PrefRegistrySimple* registry); | |
| 31 | |
| 32 explicit PinStorage(PrefService* pref_service); | |
| 33 ~PinStorage(); | |
| 34 | |
| 35 // Add a PIN unlock attempt count. | |
| 36 void AddUnlockAttempt(); | |
| 37 // Reset the number of unlock attempts to 0. | |
| 38 void ResetUnlockAttemptCount(); | |
| 39 // Returns the number of unlock attempts. | |
| 40 int unlock_attempt_count() const { return unlock_attempt_count_; } | |
| 41 | |
| 42 // Returns true if a pin is set. | |
| 43 bool IsPinSet() const; | |
| 44 // Sets the pin to the given value; IsPinSet will return true. | |
| 45 void SetPin(const std::string& pin); | |
| 46 // Removes the pin; IsPinSet will return false. | |
| 47 void RemovePin(); | |
| 48 | |
| 49 private: | |
| 50 friend class chromeos::PinStorageTestApi; | |
| 51 friend class QuickUnlockStorage; | |
| 52 | |
| 53 // Is PIN entry currently available? | |
| 54 bool IsPinAuthenticationAvailable() const; | |
| 55 | |
| 56 // Tries to authenticate the given pin. This will consume an unlock attempt. | |
| 57 // This always returns false if IsPinAuthenticationAvailable returns false. | |
| 58 bool TryAuthenticatePin(const std::string& pin); | |
| 59 | |
| 60 // Return the stored salt/secret. This is fetched directly from pref_service_. | |
| 61 std::string PinSalt() const; | |
| 62 std::string PinSecret() const; | |
| 63 | |
| 64 PrefService* pref_service_; | |
| 65 int unlock_attempt_count_ = 0; | |
| 66 | |
| 67 DISALLOW_COPY_AND_ASSIGN(PinStorage); | |
| 68 }; | |
| 69 | |
| 70 } // namespace quick_unlock | |
| 71 } // namespace chromeos | |
| 72 | |
| 73 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_PIN_STORAGE_H_ | |
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Chromium Code Reviews
Issue 2809993004:
cros: Implement cryptohome backend for pin.
