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XChaCha20-Poly1305 via libsodium

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This commit is contained in:
rtw1x1
2026-02-03 11:12:32 +00:00
parent 857ef33627
commit 509e2638cb
981 changed files with 49784 additions and 255732 deletions
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15
src/PackLib/Pack.cpp
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@@ -13,11 +13,16 @@ static ZSTD_DCtx* GetThreadLocalZSTDContext()
return g_zstdDCtx;
}
void CPack::DecryptData(uint8_t* data, size_t len, const uint8_t* nonce)
{
crypto_stream_xchacha20_xor(data, data, len, nonce, PACK_KEY.data());
}
bool CPack::Load(const std::string& path)
{
std::error_code ec;
m_file.map(path, ec);
if (ec) {
return false;
}
@@ -28,7 +33,6 @@ bool CPack::Load(const std::string& path)
}
memcpy(&m_header, m_file.data(), sizeof(TPackFileHeader));
m_decryption.SetKeyWithIV(PACK_KEY.data(), PACK_KEY.size(), m_header.iv, CryptoPP::Camellia::BLOCKSIZE);
if (file_size < sizeof(TPackFileHeader) + m_header.entry_num * sizeof(TPackFileEntry)) {
return false;
@@ -39,7 +43,7 @@ bool CPack::Load(const std::string& path)
for (size_t i = 0; i < m_header.entry_num; i++) {
TPackFileEntry& entry = m_index[i];
memcpy(&entry, m_file.data() + sizeof(TPackFileHeader) + i * sizeof(TPackFileEntry), sizeof(TPackFileEntry));
m_decryption.ProcessData((CryptoPP::byte*)&entry, (CryptoPP::byte*)&entry, sizeof(TPackFileEntry));
DecryptData((uint8_t*)&entry, sizeof(TPackFileEntry), m_header.nonce);
if (file_size < m_header.data_begin + entry.offset + entry.compressed_size) {
return false;
@@ -79,8 +83,7 @@ bool CPack::GetFileWithPool(const TPackFileEntry& entry, TPackFile& result, CBuf
memcpy(compressed_data.data(), m_file.data() + offset, entry.compressed_size);
m_decryption.Resynchronize(entry.iv, sizeof(entry.iv));
m_decryption.ProcessData(compressed_data.data(), compressed_data.data(), entry.compressed_size);
DecryptData(compressed_data.data(), entry.compressed_size, entry.nonce);
size_t decompressed_size = ZSTD_decompressDCtx(dctx, result.data(), result.size(), compressed_data.data(), compressed_data.size());
@@ -97,4 +100,4 @@ bool CPack::GetFileWithPool(const TPackFileEntry& entry, TPackFile& result, CBuf
}
return true;
}
}