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Nuovi approcci alla steganografia multimediale by Lokeswara Reddy Velagalapalli

Nuovi approcci alla steganografia multimediale

by Lokeswara Reddy Velagalapalli
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Book cover type: Paperback
  • ISBN13: 9783639529456
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Edizioni Sapienza
  • Publisher Imprint: Edizioni Sapienza
  • Publication Date:
  • Pages: 108
  • Original Price: GBP 52.98
  • Language: Italian
  • Edition: N/A
  • Item Weight: 155 grams
  • BISAC Subject(s): General

Il mondo di Internet odierno non � al sicuro dai ladri di dati e dagli hacker, ed � necessario progettare un sistema che consenta agli utenti di Internet di scambiarsi dati segreti e privati in modo sicuro attraverso il web. Per proteggere la privacy e la sicurezza, nascondere le informazioni rappresenta il metodo pi� efficace. La crittografia e la steganografia sono le due sottodiscipline pi� importanti nell'occultamento delle informazioni. In questo lavoro, il metodo steganografico basato sul bit meno significativo (LSB) viene applicato a diversi formati di file come Bitmap (BMP), Graphics Interchange Format (GIF) e Portable Network Graphics (PNG). � stato progettato e implementato un nuovo algoritmo chiamato Rotatocrypt per una crittografia e decrittografia efficaci. � stata sviluppata un'applicazione steganografica denominata SteganPEG, che � una combinazione di crittografia e steganografia per nascondere le informazioni segrete. Consente di incorporare pi� file in un unico file di copertura. Come parte di questo lavoro, la tecnica steganografica basata su LSB viene applicata anche a file multimediali come .bmp, Waveform (.wav) e Audio Video Interleave (.avi). I metodi proposti sono stati progettati e implementati utilizzando Java, Microsoft Visual Basic e le prestazioni sono state valutate utilizzando MATLAB.

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