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encryption for .py files in PackMaker

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This commit is contained in:
d1str4ught
2025-09-21 01:24:05 +02:00
parent 3b1d0fd10a
commit 7509eeb93b
1 changed files with 13 additions and 2 deletions
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15
src/PackMaker/main.cpp
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@@ -34,6 +34,7 @@ struct TPackFileEntry
uint64_t file_size;
uint64_t compressed_size;
uint8_t encryption;
uint8_t iv[CryptoPP::Camellia::BLOCKSIZE];
};
#pragma pack(pop)
@@ -106,6 +107,9 @@ int main(int argc, char* argv[])
ofs.write((const char*) &header, sizeof(header));
ofs.seekp(header.data_begin, std::ios::beg);
CryptoPP::CTR_Mode<CryptoPP::Camellia>::Encryption encryption;
encryption.SetKeyWithIV(PACK_KEY.data(), PACK_KEY.size(), header.iv, CryptoPP::Camellia::BLOCKSIZE);
uint64_t offset = header.data_begin;
for (auto& [path, entry] : entries) {
std::ifstream ifs(input / path, std::ios::binary);
@@ -133,7 +137,15 @@ int main(int argc, char* argv[])
}
entry.offset = offset;
entry.encryption = 0;
if (path.has_extension() && path.extension() == ".py") {
entry.encryption = 1;
rnd.GenerateBlock(entry.iv, sizeof(entry.iv));
encryption.Resynchronize(entry.iv, sizeof(entry.iv));
encryption.ProcessData((uint8_t*)compressed_buffer.data(), (uint8_t*)compressed_buffer.data(), entry.compressed_size);
}
ofs.write(compressed_buffer.data(), entry.compressed_size);
offset += entry.compressed_size;
@@ -146,8 +158,7 @@ int main(int argc, char* argv[])
ptr += sizeof(entry);
}
CryptoPP::CTR_Mode<CryptoPP::Camellia>::Encryption encryption;
encryption.SetKeyWithIV(PACK_KEY.data(), PACK_KEY.size(), header.iv, CryptoPP::Camellia::BLOCKSIZE);
encryption.Resynchronize(header.iv, sizeof(header.iv));
encryption.ProcessData((uint8_t*)entry_buffer.data(), (uint8_t*)entry_buffer.data(), entry_buffer.size());
ofs.seekp(sizeof(TPackFileHeader), std::ios::beg);