chromium/components/sync/engine/nigori/cross_user_sharing_public_private_key_pair.cc

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/sync/engine/nigori/cross_user_sharing_public_private_key_pair.h"

#include <array>
#include <cstdint>
#include <optional>
#include <utility>
#include <vector>

#include "base/check_op.h"
#include "base/logging.h"
#include "third_party/boringssl/src/include/openssl/hpke.h"

namespace syncer {

CrossUserSharingPublicPrivateKeyPair::CrossUserSharingPublicPrivateKeyPair(
    CrossUserSharingPublicPrivateKeyPair&& other) = default;

CrossUserSharingPublicPrivateKeyPair&
CrossUserSharingPublicPrivateKeyPair::operator=(
    CrossUserSharingPublicPrivateKeyPair&& other) = default;

CrossUserSharingPublicPrivateKeyPair::~CrossUserSharingPublicPrivateKeyPair() =
    default;

// static
CrossUserSharingPublicPrivateKeyPair
CrossUserSharingPublicPrivateKeyPair::GenerateNewKeyPair() { … }

// static
std::optional<CrossUserSharingPublicPrivateKeyPair>
CrossUserSharingPublicPrivateKeyPair::CreateByImport(
    base::span<const uint8_t> private_key) { … }

CrossUserSharingPublicPrivateKeyPair::CrossUserSharingPublicPrivateKeyPair(
    base::span<const uint8_t> private_key) { … }

CrossUserSharingPublicPrivateKeyPair::CrossUserSharingPublicPrivateKeyPair() { … }

std::array<uint8_t, X25519_PRIVATE_KEY_LEN>
CrossUserSharingPublicPrivateKeyPair::GetRawPrivateKey() const { … }

std::array<uint8_t, X25519_PUBLIC_VALUE_LEN>
CrossUserSharingPublicPrivateKeyPair::GetRawPublicKey() const { … }

std::optional<std::vector<uint8_t>>
CrossUserSharingPublicPrivateKeyPair::HpkeAuthEncrypt(
    base::span<const uint8_t> plaintext,
    base::span<const uint8_t> recipient_public_key,
    base::span<const uint8_t> authenticated_info) const { … }

std::optional<std::vector<uint8_t>>
CrossUserSharingPublicPrivateKeyPair::HpkeAuthDecrypt(
    base::span<const uint8_t> encrypted_data,
    base::span<const uint8_t> sender_public_key,
    base::span<const uint8_t> authenticated_info) const { … }

}  // namespace syncer