Wbudowywanie zaszyfrowanego tekstu w pliki MP3 - steganografia

Name: Wbudowywanie zaszyfrowanego tekstu w pliki MP3 - steganografia
Brand: Wydawnictwo Nasza Wiedza
SKU: 9786209870842
Price: 5315.0 INR
Availability: InStock

by Mohammed Salem Atoum

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ISBN13: 9786209870842
Binding: Paperback
Subject: N/A
Publisher: Wydawnictwo Nasza Wiedza
Publisher Imprint: Wydawnictwo Nasza Wiedza
Publication Date: March 31, 2026
Pages: 60
Original Price: GBP 42.0
Language: Polish
Edition: N/A
Item Weight: 96 grams
BISAC Subject(s): General

About The Book

Steganografia jest formą ukrywania danych; stanowi spos�b ochrony informacji poprzez osadzanie danych w nośnikach cyfrowych w celu identyfikacji, zabezpieczenia praw autorskich oraz przesylania tajnych wiadomości. Steganografia w plikach audio stanowi trudną dziedzinę, ponieważ ludzki system sluchowy (HAS) jest niezwykle wrażliwy. Jedną z gl�wnych przeszk�d w ukrywaniu danych w plikach audio jest opracowanie systemu, kt�ry pozwolilby na umieszczenie dużej ilości danych bez pogorszenia jakości dźwięku. W niniejszym badaniu zaprojektowano dwa podejścia do steganografii slużące do ukrywania tajnych danych w pliku multimedialnym audio (MP3). Pierwsza proponowana metoda opiera się na osadzaniu zaszyfrowanego tekstu pomiędzy ramkami (BF) w pliku MP3, natomiast druga metoda opiera się na osadzaniu zaszyfrowanego tekstu przed pierwszą ramką (BAF) w pliku MP3. Po przeanalizowaniu obu zaproponowanych metod potwierdzono, że pierwsza metoda (BF) jest lepsza, ponieważ pozwala na osadzenie okolo 40 MB danych bez wplywu na jakośc dźwięku, a czas osadzania wynosi 134,2 sekundy, a czas ekstrakcji 2618,2 sekundy, podczas gdy druga metoda (BAF) wykazala zdolnośc do osadzenia okolo 8 KB (maksymalnie) bez wplywu na jakośc dźwięku.

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