Einbettung von verschlüsseltem Text mittels MP3-Steganografie
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Imported Edition - Ships in 18-21 Days
Free Shipping in India on orders above Rs. 500
Steganografie ist eine Form der Datenversteckung; sie dient dem Schutz von Informationen durch das Einbetten von Daten in digitale Medien zum Zwecke der Identifizierung, des Urheberrechtsschutzes und der �bermittlung geheimer Nachrichten. Steganografie im Audiobereich stellt eine gro e Herausforderung dar, da das menschliche Geh�r (HAS) �u erst empfindlich ist. Eine der gr� ten H�rden bei der Datenversteckung in Audiodaten besteht darin, ein System zu entwickeln, das eine gro e Datenmenge aufnehmen kann, ohne die Klangqualit�t zu beeintr�chtigen. In dieser Forschungsarbeit wurden zwei Ans�tze der Steganografie zum Verstecken geheimer Daten in Audiodateien (MP3) entwickelt. Der erste vorgeschlagene Ansatz basiert auf der Einbettung verschl�sselter Textdaten zwischen den Frames (BF) in der MP3-Datei, w�hrend der zweite Ansatz auf der Einbettung verschl�sselter Textdaten vor dem ersten Frame (BAF) in der MP3-Datei basiert. Nach der Untersuchung der beiden vorgeschlagenen Ans�tze wurde best�tigt, dass der erste Ansatz (BF) besser ist, da er die Kapazit�t besitzt, etwa 40 MB einzubetten, ohne die Klangqualit�t zu beeintr�chtigen, und dabei 134,2 Sekunden f�r das Einbetten sowie 2618,2 Sekunden f�r das Extrahieren ben�tigt, w�hrend der zweite Ansatz (BAF) seine F�higkeit unter Beweis gestellt hat, etwa 8 KB (maximal) einzubetten, ohne die Klangqualit�t zu beeintr�chtigen.
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