blob: 7a3852a1f3c5f3fdf144b4100f08d6cf569cc08a [file] [log] [blame]
// Copyright 2018 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <base/callback.h>
#include "cryptohome/rpc.pb.h"
namespace cryptohome {
// Interface for making challenge requests against the specified cryptographic
// key.
// In real use cases, the implementation of this interface will make IPC
// requests to the service that talks to the cryptographic token with the
// challenged key.
// This class is intended to be used only on a single thread / task runner only.
// Response callbacks will also be run on the same thread / task runner.
class KeyChallengeService {
virtual ~KeyChallengeService() = default;
// This callback is called with a response for a challenge request made via
// ChallengeKey().
// In case of error, |response| will be null; otherwise, it will contain the
// challenge response data.
using ResponseCallback =
base::OnceCallback<void(std::unique_ptr<KeyChallengeResponse> response)>;
// Starts a challenge request against the specified cryptographic key.
// The challenge data is passed via |key_challenge_request|, and |account_id|
// specifies the account whom the vault keyset in question belongs. The result
// is reported via |response_callback|.
virtual void ChallengeKey(const AccountIdentifier& account_id,
const KeyChallengeRequest& key_challenge_request,
ResponseCallback response_callback) = 0;
} // namespace cryptohome