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1 // Copyright 2014 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 COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_
6 #define COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_
7 
8 #include <string>
9 #include <vector>
10 
11 #include "base/basictypes.h"
12 #include "base/macros.h"
13 #include "base/memory/ref_counted.h"
14 #include "base/memory/scoped_ptr.h"
15 #include "base/stl_util.h"
16 #include "components/ownership/ownership_export.h"
17 
18 #if defined(USE_NSS)
19 struct PK11SlotInfoStr;
20 typedef struct PK11SlotInfoStr PK11SlotInfo;
21 #endif  // defined(USE_NSS)
22 
23 namespace crypto {
24 class RSAPrivateKey;
25 }
26 
27 namespace ownership {
28 
29 class OwnerKeyUtilTest;
30 
31 // This class is a ref-counted wrapper around a plain public key.
32 class OWNERSHIP_EXPORT PublicKey
33     : public base::RefCountedThreadSafe<PublicKey> {
34  public:
35   PublicKey();
36 
data()37   std::vector<uint8>& data() { return data_; }
38 
is_loaded()39   bool is_loaded() const { return !data_.empty(); }
40 
as_string()41   std::string as_string() {
42     return std::string(reinterpret_cast<const char*>(vector_as_array(&data_)),
43                        data_.size());
44   }
45 
46  private:
47   friend class base::RefCountedThreadSafe<PublicKey>;
48 
49   virtual ~PublicKey();
50 
51   std::vector<uint8> data_;
52 
53   DISALLOW_COPY_AND_ASSIGN(PublicKey);
54 };
55 
56 // This class is a ref-counted wrapper around a crypto::RSAPrivateKey
57 // instance.
58 class OWNERSHIP_EXPORT PrivateKey
59     : public base::RefCountedThreadSafe<PrivateKey> {
60  public:
61   explicit PrivateKey(crypto::RSAPrivateKey* key);
62 
key()63   crypto::RSAPrivateKey* key() { return key_.get(); }
64 
65  private:
66   friend class base::RefCountedThreadSafe<PrivateKey>;
67 
68   virtual ~PrivateKey();
69 
70   scoped_ptr<crypto::RSAPrivateKey> key_;
71 
72   DISALLOW_COPY_AND_ASSIGN(PrivateKey);
73 };
74 
75 // This class is a helper class that allows to import public/private
76 // parts of the owner key.
77 class OWNERSHIP_EXPORT OwnerKeyUtil
78     : public base::RefCountedThreadSafe<OwnerKeyUtil> {
79  public:
80   // Attempts to read the public key from the file system.  Upon success,
81   // returns true and populates |output|.  False on failure.
82   virtual bool ImportPublicKey(std::vector<uint8>* output) = 0;
83 
84 #if defined(USE_NSS)
85   // Looks for the private key associated with |key| in the |slot|
86   // and returns it if it can be found.  Returns NULL otherwise.
87   // Caller takes ownership.
88   virtual crypto::RSAPrivateKey* FindPrivateKeyInSlot(
89       const std::vector<uint8>& key,
90       PK11SlotInfo* slot) = 0;
91 #endif  // defined(USE_NSS)
92 
93   // Checks whether the public key is present in the file system.
94   virtual bool IsPublicKeyPresent() = 0;
95 
96  protected:
~OwnerKeyUtil()97   virtual ~OwnerKeyUtil() {}
98 
99  private:
100   friend class base::RefCountedThreadSafe<OwnerKeyUtil>;
101 };
102 
103 }  // namespace ownership
104 
105 #endif  // COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_
106