BlockStorage/repertory
1
0
Fork 0
Code Issues 3 Pull Requests Releases 9 Wiki Activity

updated build system

Browse Source
This commit is contained in:
sgraves76
2025-08-28 18:34:21 -05:00
parent c9362b8802
commit fa3419c7cc
12 changed files with 996 additions and 194 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
support/src/utils/encryption.cpp
View File

@@ -28,11 +28,24 @@
#include "utils/hash.hpp"
#include "utils/path.hpp"
namespace {
constexpr auto resize_by(repertory::data_span &data, std::size_t /* size */)
-> repertory::data_span & {
return data;
}
auto resize_by(repertory::data_buffer &data, std::size_t size)
-> repertory::data_buffer & {
data.resize(data.size() + size);
return data;
}
} // namespace
namespace repertory::utils::encryption {
auto kdf_config::to_header() const -> data_buffer {
kdf_config tmp{*this};
tmp.checksum = boost::endian::native_to_big(tmp.checksum);
tmp.magic = boost::endian::native_to_big(tmp.magic);
tmp.unique_id = boost::endian::native_to_big(tmp.unique_id);
data_buffer ret(size());
std::memcpy(ret.data(), &tmp, ret.size());
@@ -49,24 +62,15 @@ auto kdf_config::generate_checksum() const -> std::uint64_t {
return *reinterpret_cast<std::uint64_t *>(hash.data());
}
void kdf_config::generate_salt() {
randombytes_buf(salt.data(), salt.size());
checksum = generate_checksum();
}
auto kdf_config::from_header(std::span<const unsigned char> data,
kdf_config &cfg) -> bool {
auto kdf_config::from_header(data_cspan data, kdf_config &cfg) -> bool {
if (data.size() < kdf_config::size()) {
return false;
}
std::memcpy(&cfg, data.data(), kdf_config::size());
cfg.magic = boost::endian::big_to_native(cfg.magic);
if (cfg.magic != repertory_magic) {
return false;
}
cfg.checksum = boost::endian::big_to_native(cfg.checksum);
cfg.unique_id = boost::endian::big_to_native(cfg.unique_id);
return cfg.version == kdf_version::v1 && cfg.kdf == kdf_type::argon2id &&
cfg.memlimit >= memlimit_level::level1 &&
cfg.memlimit <= memlimit_level::level4 &&
@@ -75,6 +79,11 @@ auto kdf_config::from_header(std::span<const unsigned char> data,
cfg.checksum == cfg.generate_checksum();
}
void kdf_config::seal() {
randombytes_buf(salt.data(), salt.size());
checksum = generate_checksum();
}
auto decrypt_file_path(std::string_view encryption_token,
std::string &file_path) -> bool {
std::vector<std::string> decrypted_parts;
@@ -140,16 +149,6 @@ auto decrypt_file_name(std::string_view encryption_token, const kdf_config &cfg,
file_name);
}
constexpr auto resize_by(std::span<unsigned char> &data, std::size_t size)
-> std::span<unsigned char> & {
return data;
}
static auto resize_by(data_buffer &data, std::size_t size) -> data_buffer & {
data.resize(data.size() + size);
return data;
}
template <typename data_t>
[[nodiscard]] auto
read_encrypted_range(http_range range, const utils::hash::hash_256_t &key,
@@ -215,12 +214,12 @@ read_encrypted_range(http_range range, const utils::hash::hash_256_t &key,
auto data_size = static_cast<std::size_t>(std::min(
remain, static_cast<std::uint64_t>(data_chunk_size - source_offset)));
resize_by(data, data_size);
std::copy(std::next(source_buffer.begin(),
static_cast<std::int64_t>(source_offset)),
std::next(source_buffer.begin(),
static_cast<std::int64_t>(source_offset + data_size)),
std::next(data.begin(), static_cast<std::int64_t>(bytes_read)));
std::next(resize_by(data, data_size).begin(),
static_cast<std::int64_t>(bytes_read)));
remain -= data_size;
bytes_read += data_size;
source_offset = 0U;
@@ -243,8 +242,8 @@ auto read_encrypted_range(const http_range &range,
const http_range &range, const utils::hash::hash_256_t &key, bool uses_kdf,
reader_func_t reader_func, std::uint64_t total_size, unsigned char *data,
std::size_t size, std::size_t &bytes_read) -> bool {
std::span dest_buffer(data, size);
return read_encrypted_range<std::span<unsigned char>>(
data_span dest_buffer(data, size);
return read_encrypted_range<data_span>(
range, key, reader_func, total_size, dest_buffer,
uses_kdf ? kdf_config::size() : 0U, bytes_read);
}