File: cookie_crypto_delegate.h

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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_EXTRAS_SQLITE_COOKIE_CRYPTO_DELEGATE_H_
#define NET_EXTRAS_SQLITE_COOKIE_CRYPTO_DELEGATE_H_

#include "base/component_export.h"

namespace net {

// Implements encryption and decryption for the persistent cookie store.
class COMPONENT_EXPORT(NET_EXTRAS) CookieCryptoDelegate {
 public:
  virtual ~CookieCryptoDelegate() = default;

  // Return if cookies should be encrypted on this platform.  Decryption of
  // previously encrypted cookies is always possible.
  virtual bool ShouldEncrypt() = 0;

  // Encrypt |plaintext| string and store the result in |ciphertext|.  This
  // method is always functional even if ShouldEncrypt() is false.
  virtual bool EncryptString(const std::string& plaintext,
                             std::string* ciphertext) = 0;

  // Decrypt |ciphertext| string and store the result in |plaintext|.  This
  // method is always functional even if ShouldEncrypt() is false.
  virtual bool DecryptString(const std::string& ciphertext,
                             std::string* plaintext) = 0;
};

}  // namespace net

#endif  // NET_EXTRAS_SQLITE_COOKIE_CRYPTO_DELEGATE_H_