/* CryptoNight Step 4: Sequentially pass through the mixing buffer
* and use 10 rounds of AES encryption to mix the random data back
* into the 'text' buffer.
*/
private static void EncryptScratchpadToText(CNState cnState,
ICryptoNight cnParams,
byte[] scratchpad)
{
/* Reinitialize text from state */
byte[] text = cnState.GetText();
/* Expand our initial key into many for each round of pseudo aes */
byte[] expandedKeys = AES.ExpandKey(cnState.GetAESKey2(), true);
for (int i = 0; i < cnParams.InitRounds; i++)
{
AES.AESPseudoRoundXOR(
expandedKeys,
text,
scratchpad,
i * Constants.INIT_SIZE_BYTE
);
}
cnState.SetText(text);
}