Il sistema di mobile cloud : il miglioramento della sicurezza multimediale tramite i cellulari

Currently, the matter of media copyright has become one of the main online issues which should be provided more attention. People have been taking things for granted by obtaining free media that they should be paying for through the internet. Nobody wants to work for free, so as the artists and the movie producers. Imagine those people who create media work with toil and all other people just want to acquire them for free. Media files scattered all over the internet are mostly without any copyright protection. As the matter of fact, the best way to stop cyber-crime is to create ethical minds in internet users, but that is as hard as telling people to conserve nature. Some people do, the rest of them do not. When asking those online users to stop downloading the media illegally does not make any difference, the downloadable media security authentication itself has to be enhanced. Peer-to-peer file sharing system is a technique that allows large scale of the internet users to download as well as upload computer files in a rapid speed. It is apparently almost impossible to control an online distribution of multimedia file. Therefore if people need a copyright protection, it has to be done on the multimedia files themselves. Digital Right Management is the technology used by the copyright owners to maintain and manage the authentication or use of their multimedia products like songs, movies or other software. The term should not be confused with copy protection. Although DRM proposes that downloading media is acceptable for household entertainment, many of them downloaded and distributed as a business. Some technique like cloud computing system is used to reduce delay of file retrieval over internet or a computer network. But for mobile cloud system like in media files are split into many small parts. Each part of media file is accessible by any user and might lead to partial or wholly violation of media copyright. This thesis will emphasize on protecting file parts so that each of them will not be playable by any typical video player.