Особливості систем захисту інформації в комп'ютерних системах та мережах вимагають розробки нетривіальних методів для їх аналізу та оцінки. Спроби рішення в цій області наведено в даній статті.Ключові слова: комп'ютерні системи і технології, модель, інформаційна безпека.
Аннотация:Особенности систем защиты информации в компьютерных системах и сетях требуют разработки нетривиальных методов для их анализа и оценки. Попытки решения в этой области приведены в этой статье.Ключевые слова: компьютерные системы и технологии, модель, информационная безопасность.
Information security is major concern in modern digital ages, and the outdated algorithms need to be replaced with new ones or to be improved. In this article a new approach for hiding secret text message in color images is presented, combining steganography and cryptography. The location and the order of the image pixels chosen for information embedding are randomly selected using chaotic pseudo-random generator. Encrypting the secret message before embedding is another level of security designed to misguide the attackers in case of analyzing for traces of steganography. Evaluating the proposed stegoalgorithm. The standard statistical and empirical tests are used for randomness tests, key-space analysis, key-sensitivity analysis, visual analysis, histogram analysis, peak signal-to-noise ratio analysis, chi-square analysis, etc. The obtained results are presented and explained in the present article.
The paper suggests a parallel algorithm for the implementation of the LSB steganographic method. A program for cluster computer system in OpenMPI environment is implemented and an assessment of the acceleration of the program depending on the number of the computing cores that implement the program is made.
The article presents the developed augmented reality software application requiring minimal resources for its development and implementation. The application is developed on a webbased platform and uses 2D markers. The AR.js open source JavaScript library is used as a development environment.
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