v2.0.2-rc (#27)
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## v2.0.2-rc ### BREAKING CHANGES * Refactored `config.json` - will need to verify configuration settings prior to mounting ### Issues * \#12 \[Unit Test\] Complete all providers unit tests * \#14 \[Unit Test\] SQLite mini-ORM unit tests and cleanup * \#16 Add support for bucket name in Sia provider * \#17 Update to common c++ build system * A single 64-bit Linux Jenkins server is used to build all Linux and Windows versions * All dependency sources are now included * MSVC is no longer supported * MSYS2 is required for building Windows binaries on Windows * OS X support is temporarily disabled * \#19 \[bug\] Rename file is broken for files that are existing * \#23 \[bug\] Incorrect file size displayed while upload is pending * \#24 RocksDB implementations should be transactional * \#25 Writes should block when maximum cache size is reached * \#26 Complete ring buffer and direct download support ### Changes from v2.0.1-rc * Ability to choose between RocksDB and SQLite databases * Added direct reads and implemented download fallback * Corrected file times on S3 and Sia providers * Corrected handling of `chown()` and `chmod()` * Fixed erroneous download of chunks after resize Reviewed-on: #27
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support/include/utils/encryption.hpp
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support/include/utils/encryption.hpp
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/*
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Copyright <2018-2024> <scott.e.graves@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef REPERTORY_INCLUDE_UTILS_ENCRYPTION_HPP_
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#define REPERTORY_INCLUDE_UTILS_ENCRYPTION_HPP_
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#if defined(PROJECT_ENABLE_LIBSODIUM)
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#include "utils/config.hpp"
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#include "utils/error.hpp"
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#include "utils/hash.hpp"
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namespace repertory::utils::encryption {
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inline constexpr const std::uint32_t encryption_header_size{
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crypto_aead_xchacha20poly1305_IETF_NPUBBYTES +
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crypto_aead_xchacha20poly1305_IETF_ABYTES,
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};
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template <typename hash_t>
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inline auto generate_key(
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std::string_view password,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) -> hash_t;
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template <typename hash_t>
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inline auto generate_key(
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std::wstring_view password,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) -> hash_t;
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#if defined(PROJECT_ENABLE_BOOST)
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[[nodiscard]] auto decrypt_file_name(std::string_view encryption_token,
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std::string &file_name) -> bool;
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[[nodiscard]] auto decrypt_file_path(std::string_view encryption_token,
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std::string &file_path) -> bool;
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template <typename result_t, typename arr_t, std::size_t arr_size>
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[[nodiscard]] inline auto decrypt_data(const std::array<arr_t, arr_size> &key,
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const unsigned char *buffer,
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std::size_t buffer_size,
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result_t &res) -> bool {
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if (buffer_size > encryption_header_size) {
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const std::uint32_t size =
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boost::endian::native_to_big(static_cast<std::uint32_t>(buffer_size));
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res.resize(buffer_size - encryption_header_size);
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return crypto_aead_xchacha20poly1305_ietf_decrypt_detached(
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reinterpret_cast<unsigned char *>(res.data()), nullptr,
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&buffer[encryption_header_size], res.size(),
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&buffer[crypto_aead_xchacha20poly1305_IETF_NPUBBYTES],
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reinterpret_cast<const unsigned char *>(&size), sizeof(size),
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buffer, key.data()) == 0;
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}
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return false;
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}
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template <typename buffer_t, typename result_t, typename arr_t,
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std::size_t arr_size>
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[[nodiscard]] inline auto decrypt_data(const std::array<arr_t, arr_size> &key,
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const buffer_t &buf,
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result_t &res) -> bool {
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return decrypt_data<result_t>(
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key, reinterpret_cast<const unsigned char *>(buf.data()), buf.size(),
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res);
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}
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template <typename buffer_t, typename result_t, typename hash_t = hash_256_t>
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[[nodiscard]] inline auto decrypt_data(
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std::string_view password, const buffer_t &buf, result_t &res,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) -> bool {
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return decrypt_data<buffer_t, result_t>(generate_key(password, hasher), buf,
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res);
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}
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template <typename result_t, typename hash_t = hash_256_t>
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[[nodiscard]] inline auto decrypt_data(
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std::string_view password, const unsigned char *buffer,
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std::size_t buffer_size, result_t &res,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) -> bool {
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return decrypt_data<result_t>(generate_key(password, hasher), buffer,
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buffer_size, res);
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}
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template <typename result_t, typename arr_t, std::size_t arr_size>
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inline void
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encrypt_data(const std::array<unsigned char,
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crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> &iv,
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const std::array<arr_t, arr_size> &key,
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const unsigned char *buffer, std::size_t buffer_size,
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result_t &res) {
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REPERTORY_USES_FUNCTION_NAME();
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std::array<unsigned char, crypto_aead_xchacha20poly1305_IETF_ABYTES> mac{};
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const std::uint32_t size = boost::endian::native_to_big(
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static_cast<std::uint32_t>(buffer_size + encryption_header_size));
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res.resize(buffer_size + encryption_header_size);
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unsigned long long mac_length{};
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if (crypto_aead_xchacha20poly1305_ietf_encrypt_detached(
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reinterpret_cast<unsigned char *>(&res[encryption_header_size]),
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mac.data(), &mac_length, buffer, buffer_size,
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reinterpret_cast<const unsigned char *>(&size), sizeof(size), nullptr,
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iv.data(), key.data()) != 0) {
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throw repertory::utils::error::create_exception(function_name,
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{
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"encryption failed",
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});
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}
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std::memcpy(res.data(), iv.data(), iv.size());
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std::memcpy(&res[iv.size()], mac.data(), mac.size());
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}
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template <typename result_t, typename arr_t, std::size_t arr_size>
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inline void encrypt_data(const std::array<arr_t, arr_size> &key,
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const unsigned char *buffer, std::size_t buffer_size,
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result_t &res) {
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std::array<unsigned char, crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> iv{};
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randombytes_buf(iv.data(), iv.size());
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encrypt_data<result_t>(iv, key, buffer, buffer_size, res);
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}
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template <typename result_t, typename hash_t = hash_256_t>
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inline void encrypt_data(
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std::string_view password, const unsigned char *buffer,
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std::size_t buffer_size, result_t &res,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) {
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encrypt_data<result_t>(generate_key(password, hasher), buffer, buffer_size,
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res);
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}
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template <typename buffer_t, typename result_t, typename hash_t = hash_256_t>
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inline void encrypt_data(
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std::string_view password, const buffer_t &buf, result_t &res,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher =
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default_create_hash<hash_t>()) {
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encrypt_data<result_t>(generate_key(password, hasher),
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reinterpret_cast<const unsigned char *>(buf.data()),
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buf.size(), res);
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}
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template <typename buffer_t, typename result_t, typename arr_t,
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std::size_t arr_size>
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inline void encrypt_data(const std::array<arr_t, arr_size> &key,
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const buffer_t &buf, result_t &res) {
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encrypt_data<result_t>(key,
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reinterpret_cast<const unsigned char *>(buf.data()),
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buf.size(), res);
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}
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template <typename buffer_t, typename result_t, typename arr_t,
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std::size_t arr_size>
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inline void
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encrypt_data(const std::array<unsigned char,
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crypto_aead_xchacha20poly1305_IETF_NPUBBYTES> &iv,
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const std::array<arr_t, arr_size> &key, const buffer_t &buf,
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result_t &res) {
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encrypt_data<result_t>(iv, key,
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reinterpret_cast<const unsigned char *>(buf.data()),
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buf.size(), res);
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}
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#if defined(PROJECT_ENABLE_CURL)
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using reader_func_t =
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std::function<bool(data_buffer &cypher_text, std::uint64_t start_offset,
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std::uint64_t end_offset)>;
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[[nodiscard]] auto
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read_encrypted_range(const http_range &range,
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const utils::encryption::hash_256_t &key,
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reader_func_t reader_func, std::uint64_t total_size,
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data_buffer &data) -> bool;
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#endif // defined(PROJECT_ENABLE_CURL)
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#endif // defined(PROJECT_ENABLE_BOOST)
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template <typename hash_t>
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inline auto generate_key(
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std::string_view password,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher)
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-> hash_t {
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return hasher(reinterpret_cast<const unsigned char *>(password.data()),
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password.size());
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}
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template <typename hash_t>
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inline auto generate_key(
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std::wstring_view password,
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std::function<hash_t(const unsigned char *data, std::size_t size)> hasher)
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-> hash_t {
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return hasher(reinterpret_cast<const unsigned char *>(password.data()),
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password.size() * sizeof(wchar_t));
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}
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} // namespace repertory::utils::encryption
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#endif // defined(PROJECT_ENABLE_LIBSODIUM)
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#endif // REPERTORY_INCLUDE_UTILS_ENCRYPTION_HPP_
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