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// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTILS_H_
#define CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTILS_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "base/memory/ref_counted.h"
class FilePath;
namespace crypto {
class RSAPrivateKey;
}
namespace chromeos {
class OwnerKeyUtilsTest;
class OwnerKeyUtils : public base::RefCounted<OwnerKeyUtils> {
public:
class Factory {
public:
virtual OwnerKeyUtils* CreateOwnerKeyUtils() = 0;
};
OwnerKeyUtils();
// Sets the factory used by the static method Create to create an
// OwnerKeyUtils. OwnerKeyUtils does not take ownership of
// |factory|. A value of NULL results in an OwnerKeyUtils being
// created directly.
#if defined(UNIT_TEST)
static void set_factory(Factory* factory) { factory_ = factory; }
#endif
// Creates an OwnerKeyUtils, ownership returns to the caller. If there is no
// Factory (the default) this creates and returns a new OwnerKeyUtils.
static OwnerKeyUtils* Create();
// Assumes that the file at |key_file| exists.
// Upon success, returns true and populates |output|. False on failure.
virtual bool ImportPublicKey(const FilePath& key_file,
std::vector<uint8>* output) = 0;
// Verfiy that |signature| is a Sha1-with-RSA signature over |data| with
// |public_key|
// Returns true if so, false on bad signature or other error.
virtual bool Verify(const std::string& data,
const std::vector<uint8> signature,
const std::vector<uint8> public_key) = 0;
// Sign |data| with |key| using Sha1 with RSA. If successful, return true
// and populate |OUT_signature|.
virtual bool Sign(const std::string& data,
std::vector<uint8>* OUT_signature,
crypto::RSAPrivateKey* key) = 0;
// Looks for the private key associated with |key| in the default slot,
// and returns it if it can be found. Returns NULL otherwise.
// Caller takes ownership.
virtual crypto::RSAPrivateKey* FindPrivateKey(
const std::vector<uint8>& key) = 0;
virtual FilePath GetOwnerKeyFilePath() = 0;
protected:
virtual ~OwnerKeyUtils();
// DER encodes public half of |pair| and writes it out to |key_file|.
// The blob on disk is a DER-encoded X509 SubjectPublicKeyInfo object.
// Returns false on error.
virtual bool ExportPublicKeyToFile(crypto::RSAPrivateKey* pair,
const FilePath& key_file) = 0;
private:
friend class base::RefCounted<OwnerKeyUtils>;
static Factory* factory_;
FRIEND_TEST_ALL_PREFIXES(OwnerKeyUtilsTest, ExportImportPublicKey);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_SETTINGS_OWNER_KEY_UTILS_H_
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