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// Copyright (c) 2010 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_PASSWORD_MANAGER_ENCRYPTOR_H__
#define CHROME_BROWSER_PASSWORD_MANAGER_ENCRYPTOR_H__
#include <string>
#include "base/values.h"
#include "base/string16.h"
// The Encryptor class gives access to simple encryption and decryption of
// strings. Note that on Mac, access to the system Keychain is required and
// these calls can block the current thread to collect user input.
class Encryptor {
public:
// Encrypt a string16. The output (second argument) is
// really an array of bytes, but we're passing it back
// as a std::string
static bool EncryptString16(const string16& plaintext,
std::string* ciphertext);
// Decrypt an array of bytes obtained with EncryptString16
// back into a string16. Note that the input (first argument)
// is a std::string, so you need to first get your (binary)
// data into a string.
static bool DecryptString16(const std::string& ciphertext,
string16* plaintext);
// Encrypt a string.
static bool EncryptString(const std::string& plaintext,
std::string* ciphertext);
// Decrypt an array of bytes obtained with EnctryptString
// back into a string. Note that the input (first argument)
// is a std::string, so you need to first get your (binary)
// data into a string.
static bool DecryptString(const std::string& ciphertext,
std::string* plaintext);
#if defined(OS_MACOSX)
// For unit testing purposes we instruct the Encryptor to use a mock Keychain
// on the Mac. The default is to use the real Keychain.
static void UseMockKeychain(bool use_mock);
#endif
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(Encryptor);
};
#endif // CHROME_BROWSER_PASSWORD_MANAGER_ENCRYPTOR_H__
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