A spread spectrum method and apparatus for protecting and authenticating
wirelessly transmitted digital information using numerous techniques. The
apparatus may be a wireless code division multiple access (CDMA)
communication system, a base station, a wireless transmit/receive unit
(WTRU), a transmitter, a receiver and/or an integrated circuit (IC). The
wireless CDMA communication system includes a transmitter which
steganographically embeds digital information in a CDMA communication
signal and wirelessly transmits the CDMA communication signal. The system
further includes a receiver which receives the CDMA communication signal
and extracts the steganographically embedded digital information from the
received CDMA communication signal.