void des::decrypt(char const* key, core::vector<byte> const& in, core::string& out)
{
DES_cblock key_block;
DES_key_schedule schedule;
DES_string_to_key(key, &key_block);
DES_set_key_checked(&key_block, &schedule);
char* buf = (char*)malloc(in.size());
core::vector<byte>::const_iterator iter = in.begin();
DES_cblock* output = (DES_cblock*)buf;
DES_cblock input;
while (iter != in.end())
{
usize sz = in.end() - iter;
if (sz >= 8)
sz = 8;
else
memset(input, 0, sizeof(DES_cblock));
memcpy(input, &*iter, sz);
DES_ecb_encrypt(&input, output, &schedule, DES_DECRYPT);
iter += sz;
output += 1;
}
out = buf;
free(buf);
}
bool output_pack(const core::string & packname, const core::vector<pack_entry> & entries)
{
//Final package output path
string outpack = settings::packs_out + packname + "." + settings::extension;
//Package writer
fwriter writer(outpack, true);
if (!writer.opened() || !writer.ok())
return false;
//Iterate entires
writer.write_uint16((uint16_t)entries.size());
for (auto e : entries)
{
console::print("[Packs] Packaging file (%) '%'", e.type, e.file);
//Write file type
writer.write_uint8((uint8_t)e.type);
//Write file name size
writer.write_uint8((uint8_t)e.file.size());
//Write file name
writer.write(e.file);
string path = e.dir + e.file;
//Write file size
writer.write_uint32((uint32_t)io::size(path));
//Write file contents
if (!io::append_content(path, writer))
return false;
}
writer.close();
return true;
}