chromium/storage/common/quota/padding_key.cc

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "storage/common/quota/padding_key.h"

#include <inttypes.h>
#include <cstdint>
#include <vector>
#include "base/no_destructor.h"
#include "base/strings/stringprintf.h"
#include "base/time/time.h"
#include "crypto/hmac.h"
#include "crypto/random.h"
#include "crypto/symmetric_key.h"
#include "net/base/schemeful_site.h"
#include "net/http/http_request_headers.h"
#include "services/network/public/mojom/url_response_head.mojom-shared.h"
#include "third_party/blink/public/common/storage_key/storage_key.h"

SymmetricKey;

namespace storage {

namespace {

const SymmetricKey::Algorithm kPaddingKeyAlgorithm = …;

// The range of the padding added to response sizes for opaque resources.
// Increment the CacheStorage padding version if changed.
constexpr uint64_t kPaddingRange = …;

std::unique_ptr<SymmetricKey>* GetPaddingKeyInternal() { … }

}  // namespace

bool ShouldPadResponseType(network::mojom::FetchResponseType type) { … }

int64_t ComputeRandomResponsePadding() { … }

int64_t ComputeStableResponsePadding(const blink::StorageKey& storage_key,
                                     const std::string& response_url,
                                     const base::Time& response_time,
                                     const std::string& request_method,
                                     int64_t side_data_size) { … }

}  // namespace storage