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Totul se rezumă la securitatea datelor. Principiul criptării computerelor se bazează pe numere prime. Un fişier sau sistem criptat este blocat de un număr foarte lung. Modul prin care pot fi accesate aceste sisteme este reprezentat de numerele prime care sunt echivalente cu numărul care blochează sistemul dacă numerele sunt multiplicate. Dacă nu se cunosc numerele prime care accesează sistemul, acestea trebuie mai întâi să fie aflate mai apoi multiplicate. Există un număr prim, extrem de lung care reprezintă codul de decriptare al DVD-urilor. Utilizând acest număr poţi duplica, multiplica şi descărca orice informaţii de pe DVD.
Sursa: IFL Science
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