International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Security of confidential information has always been an important issue. The aim of this work is to present and discuss the main themes at a new level in steganography methods nowadays. This review paper introduces a comprehensive survey related to nowadays embedding techniques. Steganography is often used with cryptography so that the information is doubly protected, but the combination of these techniques ensures that even if the steganographic method is discovered, the encrypted data remains secure and unreadable without the proper decryption key. This dual-layered approach significantly enhances the overall security of the hidden information.

The article deals with the steganography system which hides text inside images without losing data in components of RGB model The secret message is hidden in the cover image using Least Significant Bit (LSB) algorithm. The comparative results for the proposed algorithm are very promising for blue components of image. To evaluate steganography system properties are used the measures like Signalto- Noise Ratio (SNR), Peak Signal-to-Noise Ratio (PRSN), Mean Squared Error (MSE) and Structural Similarity Index for measuring (SSIM). The aim of the study is to determine whether there is a change in the qualitative characteristics of the stego image, when it is hidden the same information, but in a different color channel, to determine which color channel shows the most invisibility to others and is it advisable to be used in the transmission of confidential information.

The article deals with the steganography system which hides text inside images without losing data. The secret message is hidden in the cover image using Least Significant Bit (LSB) algorithm. To evaluate steganography system properties the measures like Signal-to-Noise Ratio (SNR), Peak Signal-to-Noise Ratio (PRSN), Mean Squared Error (MSE) and Structural Similarity Index for measuring (SSIM) are used. Experimental results show the advantages of the described steganography system.

The report examines the use of steganography as a method of hiding text, images or sound recordings in file-carrier for mobile devices, which may give the opportunity to keep the correspondence without awaking any suspicion. The information file is hidden in the filecarrier by the method Least significant bit (LSB) through various algorithms of coding. The experimental part compares mobile applications, which are using Steganography methods and compares their advantages. The experimental results show that the Ultra Mobile Steganography is realizing with fast pace, the applications have common static characteristics of the cypher image and are easy to use.