internal static byte[] CompressPRC(byte[] data, uint key, bool big_endian)
{
int dprs_size = data.Length;
data = PRS.Compress(data);
int cprs_size = data.Length;
PRC prc = new PRC(key);
Array.Resize(ref data, (int)((data.Length + 3) & 0xFFFFFFFC));
prc.CryptData(data, 0, cprs_size, big_endian);
ByteArray ba = new ByteArray(cprs_size + 8);
if (big_endian)
{
ba.Endianess = Endianess.BigEndian;
}
ba.Write(dprs_size);
ba.Write(key);
ba.Write(data, 0, cprs_size);
return(ba.Buffer);
}
internal static byte[] DecompressPRC(byte[] data, bool big_endian)
{
ByteArray ba = new ByteArray(data);
if (big_endian)
{
ba.Endianess = Endianess.BigEndian;
}
int size = ba.ReadI32();
uint key = ba.ReadU32();
byte[] result = new byte[(int)((ba.Length - 8 + 3) & 0xFFFFFFFC)];
ba.Read(result, 0, ba.Length - 8);
PRC prc = new PRC(key);
prc.CryptData(result, 0, result.Length, big_endian);
Array.Resize(ref result, size);
result = PRS.Decompress(result);
return(result);
}
