back-end-file.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
#ifndef NDN_SECURITY_TPM_BACK_END_FILE_HPP
#define NDN_SECURITY_TPM_BACK_END_FILE_HPP

#include "back-end.hpp"

namespace ndn {
namespace security {
namespace transform {
class PrivateKey;
} // namespace transform

namespace tpm {

class BackEndFile : public BackEnd
{
public:
  class Error : public BackEnd::Error
  {
  public:
    explicit
    Error(const std::string& what)
      : BackEnd::Error(what)
    {
    }
  };

public:
  explicit
  BackEndFile(const std::string& location = "");

  ~BackEndFile() override;

  static const std::string&
  getScheme();

private: // inherited from tpm::BackEnd
  bool
  doHasKey(const Name& keyName) const final;

  unique_ptr<KeyHandle>
  doGetKeyHandle(const Name& keyName) const final;

  unique_ptr<KeyHandle>
  doCreateKey(const Name& identityName, const KeyParams& params) final;

  void
  doDeleteKey(const Name& keyName) final;

  ConstBufferPtr
  doExportKey(const Name& keyName, const char* pw, size_t pwLen) final;

  void
  doImportKey(const Name& keyName, const uint8_t* buf, size_t size, const char* pw, size_t pwLen) final;

private:
  shared_ptr<transform::PrivateKey>
  loadKey(const Name& keyName) const;

  void
  saveKey(const Name& keyName, shared_ptr<transform::PrivateKey> key);

private:
  class Impl;
  const unique_ptr<Impl> m_impl;
};

} // namespace tpm
} // namespace security
} // namespace ndn

#endif // NDN_SECURITY_TPM_BACK_END_FILE_HPP