Our system is developed for the security of the multimedia content and to
improve the security measures of the existing security systems. To make
the security and authorization together we provide the cryptography and
the watermarking together. The watermarked content is encrypted and send
to the receiver. The receiver can decrypt it using the particular key used.
The watermarked data cannot changed or damaged. The watermark can be
any text or image that used for the authorization of the administrator. The
key feature of our system is we are using the MAC(Media Access
Control) address of the system for the key generation. The decryption is
possible only in that particular system with the registered MAC address.
This information is not available to the user. The particular key for each
multimedia content, the username, password and the registered users MAC
address altogether make the key. And this key is used for the decryption of
the conetent. Without decryption no one can access or view the content in
the le. Ie, in our system only the registered users have the permission to
download the le using their username and password. Even the username
and password are known by another person he can download it, but cannot
decrypt and use without that registered users system.