A device and method thereof for packetizing scalably encoded and progressively
encrypted data. The device includes a receiver adapted to receive a stream of data
from an encoding and encrypting device, in which some or all of the data are scalably
encoded and progressively encrypted. The device also includes a packetizer adapted
to packetize some or all of the data into secure and scalable data packets. In
one embodiment, the device includes a memory unit for storing the data received
from the encoding and encrypting device prior to packetization of the data. In
another embodiment, the device includes a memory unit for storing the secure and
scalable data packets. In yet another embodiment, the device includes a transmitter
for transmitting some or all of the data packets to a downstream device.