DATA HIDING IN IMAGES USING COMBINED STEGANOGRAPHY AND CRYPTOGRAPHY

Анотація

Nowadays, cyberspace security became very important all over the world. Cryptography and steganography - the art of transforming the code or the plain text into either the encrypted code or a pictures format, as used by the steganography feature, is the matter of great deal in the modern world ruler ―security. Combined they could make our message super hidden and attacker should waste a lot of time to know message. In this article we discuss the action and power of cryptography and steganography, its secured performance, hence data security.

Keywords: сryptography, steganography, stego-image, threshold value, method based on block divides, stegano coder, stegano system, JPEG-steganography, pseudo-random sequence generator (PRSG).