10721073107410751076107710781079108010811082
// Put the exchange hash in again hash.putBytes(sessionIdentifier); // Create the fist 20 bytes data = hash.doFinal(); keydata.write(data); // Now do the next 20 hash.reset();
10861087108810891090109110921093109410951096
// And the exchange hash hash.putBytes(exchangeHash); // Finally the first 20 bytes of data we created hash.putBytes(data); data = hash.doFinal(); // Put it all together keydata.write(data); // Return it