public void encrypt(int[] inbuffer, int[] outbuffer) {
            int nLen = inbuffer.length;
            long lTemp;
            for (int nI = 0; nI < nLen; nI +=2)
            {
                // encrypt a temporary 64bit block
                lTemp = intArrayToLong(inbuffer, nI);
                lTemp = encryptBlock(lTemp);
                longToIntArray(lTemp, outbuffer, nI);
            }
        }
encrypts an integer buffer (should be aligned to an
two integer border) to another int buffer (of the
same size or bigger)
@param inbuffer buffer with plaintext data
@param outbuffer buffer to get the ciphertext data
xmppserver/src/main/java/org/jivesoftware/util/Blowfish.java