Generate ECC without additional crypto.

[sickleaks DF Member Posts:1 Threads:1 Reputation 0]

Happy Monday. This works without the additional whitening and sram key.

Code:

private static byte[] generateECC(byte[] buffer)
{
    byte[] sram = new byte[((buffer.Length / 0x80) * 0x02)];

    for(int address = 0; address < buffer.Length; address += 0x80)
    {
        UInt16 value = 0x00;

        for (int offset = 0; offset < 0x80; offset += 0x02)
        {
            UInt16 nextValue = BitIO.ToUInt16(buffer, address + offset);
           nextValue = BitIO.RotateRight16(nextValue, (offset / 0x08) + 0x01);
            
            value ^= nextValue;
        }
        
        Buffer.BlockCopy(BitIO.GetBytes(value), 0x00, sram, ((address / 0x80) * 0x02), 0x02);
    }

    return sram;
}

[Matthew Banned Posts:64 Threads:18 Reputation 12]

This alone is useless, please provide a way to use before releasing something...

[KonroiGay4Real DF Member Posts:4 Threads:0 Reputation 0]

It looks like we just give it the hv.bin and it creates the 2 byte ecc?