Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Ahmed Elmhalaway"'
Publikováno v:
Multimedia Tools and Applications. 78:16177-16193
This paper demonstrates an image encryption technique using a hybrid method. This method consists of two stages. The image is XORed with the Pseudo-Random Number Generator (PRNG) in the first stage. The confusion and diffusion processes are applied b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::802965e1d3ed401fd43ad728cbf4b2eb
https://doi.org/10.1007/s11042-018-6948-7
https://doi.org/10.1007/s11042-018-6948-7
Autor:
M. M. El-Halawany, Ghada M. El-Banby, Walid El-Shafai, Osama S. Faragallah, El-Sayed M. El-Rabaie, Ahmed Elmhalaway, Ahmed M. Shehata, Khalid A. Al-Afandy, Fathi E. Abd El-Samie
Publikováno v:
Multimedia Tools and Applications. 77:25709-25759
Digital watermarking is an efficient and promising mechanism for protecting the copyright of the transmitted multimedia information. Thus, this paper presents two robust hybrid color image watermarking techniques. The objective of the proposed waterm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c2f6aeb0cde1caef04f5cb3a456f41f
https://doi.org/10.1007/s11042-018-5814-y
https://doi.org/10.1007/s11042-018-5814-y
Publikováno v:
Menoufia Journal of Electronic Engineering Research. 27:213-236
This paper demonstrates three modified algorithms for Logistic map utilized for image cryptosystem. The original Logistic map has a small range for key space. The three modified algorithms increased Key space range due to the expansion of the origina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff8de736a2bc416c6872631717553e2e
https://doi.org/10.21608/mjeer.2018.64537
https://doi.org/10.21608/mjeer.2018.64537
Autor:
Osama S. Faragallah, Osama A. Elshakankiry, Hala S. El-sayed, Mahmoud Mohamed Farouk, Ahmed Elmhalaway
Publikováno v:
Menoufia Journal of Electronic Engineering Research. 25:191-212
This paper presents an enhanced audio speech cryptosystem based on three enhancements for permutation and substitution of speech segments using multiple secret keys and permutations in time and transform domains. The first enhancement method is based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6020783083048f90cf2a30f600bbe645
https://doi.org/10.21608/mjeer.2016.64096
https://doi.org/10.21608/mjeer.2016.64096