Optimal steganographic method based on image encryption

• Autorzy: Al-Bdour Nashat , Mansour Ayman M.

Identyfikatory

DOI

10.15199/48.2021.06.02

Warianty tytułu

PL

Optymalna metoda steganograficzna oparta na szyfrowaniu obrazu

• Języki publikacji: EN

Abstrakty

EN

The paper investigates an image encryption method for the implementation of steganographic information protection. This paper aims to increase the volume of a secret message with fixed sized image. The proposed system represents an image in the form of a binary code. Each pixel code consists of 24 bits, which encode blue, green and red colors. The resulting image code is encrypted using a key set of encrypt codes generated by a pseudo-random number generator. The generation is based on cellular automata with active cells. As a result, the best bits in the color bytes of each pixel have been identified. The method provides a high degree of encryption due to the fact that, in addition to encrypting the selected bits of the pixel codes, the codes are changed due to the introduction of the bits of the secret message. The bits of the secret message have a random order since the secret message is determined by its internal content. Each new message is different from other messages and is additionally encrypted. This makes it possible to use several encrypt keys in conceal a message in an image.

PL

W artykule omówiono metodę szyfrowania obrazu w celu realizacji steganograficznej ochrony informacji. Ten artykuł ma na celu zwiększenie objętości tajnej wiadomości z obrazem o stałym rozmiarze. Proponowany system przedstawia obraz w postaci kodu binarnego. Każdy kod piksela składa się z 24 bitów, które kodują kolory niebieski, zielony i czerwony. Wynikowy kod obrazu jest szyfrowany przy użyciu zestawu kluczy szyfrujących kodów generowanych przez generator liczb pseudolosowych. Generacja oparta jest na automatach komórkowych z aktywnymi komórkami. W rezultacie zidentyfikowano najlepsze bity w bajtach koloru każdego piksela. Metoda zapewnia wysoki stopień szyfrowania dzięki temu, że oprócz szyfrowania wybranych bitów kodów pikselowych, kody ulegają zmianie w wyniku wprowadzenia bitów tajnej wiadomości.

Słowa kluczowe

EN

steganography; image encryption; concealed message; pseudorandom number generator; cellular automata

PL

steganografia; szyfrowanie; generator liczb pseudolosowych

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2021
• Tom: R. 97, nr 6
• Strony: 10--14
• Opis fizyczny: Bibliogr. 29 poz., rys.

Twórcy

autor

Al-Bdour Nashat

• Tafila Technical University, Tafila 66110, Jordan

autor

Mansour Ayman M.

• Tafila Technical University, Tafila 66110, Jordan

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).