OwnerKeyUtil is moved to components/ownership.

components/ownership/owner_key_util.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_
+#define COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/stl_util.h"
+#include "components/ownership/owner_key_util.h"
+#include "components/ownership/ownership_export.h"
+#include "crypto/rsa_private_key.h"

[wtc, 2014/08/27 22:12:53]

Just wanted to clarify that I would use forward declarations of class
RSAPrivateKey and the NSS PK11SlotInfo struct.

+
+namespace ownership {
+
+class OwnerKeyUtilTest;
+
+class OWNERSHIP_EXPORT PublicKey
+    : public base::RefCountedThreadSafe<PublicKey> {
+ public:
+  PublicKey();
+
+  std::vector<uint8>& data() { return data_; }
+
+  bool is_loaded() const { return !data_.empty(); }
+
+  std::string as_string() {
+    return std::string(reinterpret_cast<const char*>(vector_as_array(&data_)),
+                       data_.size());
+  }
+
+ private:
+  friend class base::RefCountedThreadSafe<PublicKey>;
+
+  virtual ~PublicKey();
+
+  std::vector<uint8> data_;
+
+  DISALLOW_COPY_AND_ASSIGN(PublicKey);
+};
+
+class OWNERSHIP_EXPORT PrivateKey
+    : public base::RefCountedThreadSafe<PrivateKey> {
+ public:
+  explicit PrivateKey(crypto::RSAPrivateKey* key);
+
+  crypto::RSAPrivateKey* key() { return key_.get(); }
+
+ private:
+  friend class base::RefCountedThreadSafe<PrivateKey>;
+
+  virtual ~PrivateKey();
+
+  scoped_ptr<crypto::RSAPrivateKey> key_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrivateKey);
+};
+
+class OWNERSHIP_EXPORT OwnerKeyUtil
+    : public base::RefCountedThreadSafe<OwnerKeyUtil> {
+ public:
+  explicit OwnerKeyUtil(const base::FilePath& public_key_file);
+
+  // Attempts to read the public key from the file system.  Upon success,
+  // returns true and populates |output|.  False on failure.
+  virtual bool ImportPublicKey(std::vector<uint8>* output);
+
+#if defined(USE_NSS)
+  // Looks for the private key associated with |key| in the |slot|
+  // and returns it if it can be found.  Returns NULL otherwise.
+  // Caller takes ownership.
+  virtual crypto::RSAPrivateKey* FindPrivateKeyInSlot(
+      const std::vector<uint8>& key,
+      PK11SlotInfo* slot);
+#endif  // defined(USE_NSS)
+
+  // Checks whether the public key is present in the file system.
+  virtual bool IsPublicKeyPresent();
+
+ protected:
+  virtual ~OwnerKeyUtil();
+
+ private:
+  // The file that holds the public key.
+  base::FilePath public_key_file_;
+
+  friend class base::RefCountedThreadSafe<OwnerKeyUtil>;
+
+  DISALLOW_COPY_AND_ASSIGN(OwnerKeyUtil);
+};
+
+}  // namespace ownership
+
+#endif  // COMPONENTS_OWNERSHIP_OWNER_KEY_UTIL_H_