md5Memcpy(block, inbuf, 0, i, 64);
                                md5Transform (block);
                        }
                        index = 0;

                } else

                        i = 0;

                ///* Buffer remaining input */
                md5Memcpy(buffer, inbuf, index, i, inputLen - i);

        }
       
        /*
          md5Final整理和填写输出结果
        */
        private void md5Final () {
                byte[] bits = new byte[8];
                int index, padLen;

                ///* Save number of bits */
                Encode (bits, count, 8);

                ///* Pad out to 56 mod 64.
                index = (int)(count[0] >>> 3) & 0x3f;
                padLen = (index < 56) ? (56 - index) : (120 - index);
                md5Update (PADDING, padLen);

                ///* Append length (before padding) */
                md5Update(bits, 8);

                ///* Store state in digest */
                Encode (digest, state, 16);