chromium/net/third_party/quiche/src/quiche/blind_sign_auth/blind_sign_auth_interface.h

// Copyright (c) 2023 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 QUICHE_BLIND_SIGN_AUTH_BLIND_SIGN_AUTH_INTERFACE_H_
#define QUICHE_BLIND_SIGN_AUTH_BLIND_SIGN_AUTH_INTERFACE_H_

#include <optional>
#include <string>

#include "absl/status/statusor.h"
#include "absl/time/time.h"
#include "absl/types/span.h"
#include "anonymous_tokens/cpp/privacy_pass/token_encodings.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/common/quiche_callbacks.h"

namespace quiche {

GeoHint;

// ProxyLayer indicates which proxy layer that tokens will be used with.
enum class ProxyLayer : int { … };

// BlindSignAuthServiceType indicates which service that tokens will be
// authenticated with.
enum class BlindSignAuthServiceType { … };

// A BlindSignToken is used to authenticate a request to a privacy proxy.
// The token string contains a serialized SpendTokenData proto.
// The token cannot be successfully redeemed after the expiration time.
struct QUICHE_EXPORT BlindSignToken { … };

SignedTokenCallback;

// BlindSignAuth provides signed, unblinded tokens to callers.
class QUICHE_EXPORT BlindSignAuthInterface { … };

}  // namespace quiche

#endif  // QUICHE_BLIND_SIGN_AUTH_BLIND_SIGN_AUTH_INTERFACE_H_