device/fido/sign_response_data.h

// Copyright 2017 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 DEVICE_FIDO_SIGN_RESPONSE_DATA_H_
#define DEVICE_FIDO_SIGN_RESPONSE_DATA_H_

#include <stdint.h>
#include <string>
#include <vector>

#include "base/macros.h"
#include "device/fido/authenticator_data.h"
#include "device/fido/response_data.h"

namespace device {

// Corresponds to a CTAP AuthenticatorGetAssertion response.
// See mapping from a U2F response to a CTAP response
// at https://goo.gl/eZTacx.
class SignResponseData : public ResponseData {
 public:
  static base::Optional<SignResponseData> CreateFromU2fSignResponse(
      const std::vector<uint8_t>& relying_party_id_hash,
      const std::vector<uint8_t>& u2f_data,
      const std::vector<uint8_t>& key_handle);

  SignResponseData(std::vector<uint8_t> credential_id,
                   AuthenticatorData authenticator_data,
                   std::vector<uint8_t> signature);

  SignResponseData(SignResponseData&& other);
  SignResponseData& operator=(SignResponseData&& other);

  ~SignResponseData();

  std::vector<uint8_t> GetAuthenticatorDataBytes() const;
  const std::vector<uint8_t>& signature() const { return signature_; }

 private:
  AuthenticatorData authenticator_data_;
  std::vector<uint8_t> signature_;

  DISALLOW_COPY_AND_ASSIGN(SignResponseData);
};

}  // namespace device

#endif  // DEVICE_FIDO_SIGN_RESPONSE_DATA_H_