Method of access to multimedia content protected by a terminal
Abstract:
A method for accessing protected multimedia includes receiving an encrypted fragment of the multimedia content and receiving a key for decrypting it, using the key to decrypt the fragment, thereby obtaining an unscrambled fragment, replacing original bits of the unscrambled fragment with different substituted bits to obtain a modified fragment, and reconstructing the modified fragment is reconstructed by replacing substituted bits of the extracted modified fragment with the original bits. The resulting reconstructed fragment is then decoded and the resulting decoded fragment is sent to a multimedia appliance to be enjoyed by a human viewer.
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