if ((rbuf[rsize-2] != 0x90) || (rbuf[rsize-1] != 0x00))
return SCARD_W_CARD_NOT_AUTHENTICATED;
serial = (rbuf[0]<<24) + (rbuf[1]<<16) + (rbuf[2]<<8) + (rbuf[3]);
if ((rbuf[rsize-2] != 0x90) || (rbuf[rsize-1] != 0x00))
return SCARD_W_CARD_NOT_AUTHENTICATED;
serial = (rbuf[0]<<24) + (rbuf[1]<<16) + (rbuf[2]<<8) + (rbuf[3]);