chrome/browser/chromeos/settings/owner_key_util.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTIL_H_
   6 #define CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTIL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/files/file_path.h"
  14 #include "base/gtest_prod_util.h"
  15 #include "base/memory/ref_counted.h"
  16
  17 namespace base {
  18 class FilePath;
  19 }
  20
  21 namespace crypto {
  22 class RSAPrivateKey;
  23 }
  24
  25 namespace chromeos {
  26
  27 class OwnerKeyUtilTest;
  28
  29 class OwnerKeyUtil : public base::RefCountedThreadSafe<OwnerKeyUtil> {
  30  public:
  31   // Creates an OwnerKeyUtil instance.
  32   static OwnerKeyUtil* Create();
  33
  34   // Attempts to read the public key from the file system.
  35   // Upon success, returns true and populates |output|.  False on failure.
  36   virtual bool ImportPublicKey(std::vector<uint8>* output) = 0;
  37
  38   // Looks for the private key associated with |key| in the default slot,
  39   // and returns it if it can be found.  Returns NULL otherwise.
  40   // Caller takes ownership.
  41   virtual crypto::RSAPrivateKey* FindPrivateKey(
  42       const std::vector<uint8>& key) = 0;
  43
  44   // Checks whether the public key is present in the file system.
  45   virtual bool IsPublicKeyPresent() = 0;
  46
  47  protected:
  48   OwnerKeyUtil();
  49   virtual ~OwnerKeyUtil();
  50
  51  private:
  52   friend class base::RefCountedThreadSafe<OwnerKeyUtil>;
  53
  54   FRIEND_TEST_ALL_PREFIXES(OwnerKeyUtilTest, ExportImportPublicKey);
  55 };
  56
  57 // Implementation of OwnerKeyUtil that is used in production code.
  58 class OwnerKeyUtilImpl : public OwnerKeyUtil {
  59  public:
  60   explicit OwnerKeyUtilImpl(const base::FilePath& public_key_file);
  61
  62   // OwnerKeyUtil:
  63   virtual bool ImportPublicKey(std::vector<uint8>* output) OVERRIDE;
  64   virtual crypto::RSAPrivateKey* FindPrivateKey(
  65       const std::vector<uint8>& key) OVERRIDE;
  66   virtual bool IsPublicKeyPresent() OVERRIDE;
  67
  68  protected:
  69   virtual ~OwnerKeyUtilImpl();
  70
  71  private:
  72   // The file that holds the public key.
  73   base::FilePath key_file_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(OwnerKeyUtilImpl);
  76 };
  77
  78 }  // namespace chromeos
  79
  80 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTIL_H_