public void decrypt(int[] inbuffer,
                            int[] outbuffer)
        {
            int nLen = inbuffer.length;
            long lTemp;
            for (int nI = 0; nI < nLen; nI +=2)
            {
                // decrypt a temporary 64bit block
                lTemp = intArrayToLong(inbuffer, nI);
                lTemp = decryptBlock(lTemp);
                longToIntArray(lTemp, outbuffer, nI);
            }
        }
decrypts 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 ciphertext data
@param outbuffer buffer to get the plaintext data
xmppserver/src/main/java/org/jivesoftware/util/Blowfish.java