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Electronic contents become the normal way to gain the information. Now, Internet
provides billions of electronic contents to users. Internet user can access
contents like eBooks, Films, Music, Maps and Other Contents types for different
knowledge types.
Great book and media publishers are afraid from distributing their contents over
the internet because of the piracy. In spite of this millions of great eBooks
and Media files are illegally distributed for free over the internet.
Some organization offer their contents encrypted and protected. These methods
are suitable for offline viewing. The protection solution must provide strong
data encryption, flexible viewer; it also must prevent normal data copying. The
protection solution must prevent cracker from making exact copy of media file
with the same quality and contents. Protection solution for media files does
guarantee external recording or screen capturing prevention; both of them lead
to less contents quality and cannot be prevented naturally.
Other organizations offer their contents for online viewing and use some sort of
access control to allow registered users only. The access control system must
provide secure user identification to avoid false identity attacks.
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