A REVIEW ON VARIOUS TECHNIQUES OF STEGANOGRAPHY TO HIDE THE DATA INTO DIGITAL IMAGES

Steganography could be a technique of concealing secret messages in a very cowl object whereas communication takes place between sender and receiver. Security of wind has forever been a serious issue from the interests to the current time. it's forever been the interested topic for researchers to develop secure techniques to send knowledge while not revealing it to anyone apart from the receiver. thus from time to time researchers have developed several techniques to satisfy secure transfer of information and steganography is one in every of them. during this paper we've got projected a replacement technique of image steganography i.e. Hash-LSB with RSA formula for providing additional security to knowledge furthermore as our knowledge concealing technique. The projected technique uses a hash operate to come up with a pattern for concealing knowledge bits into LSB of RGB pel values of the duvet image. this system makes certain that the message has been encrypted before concealing it into a canopy image. If in any case the cipher text got unconcealed from the duvet image, the intermediate person apart from receiver cannot access the message because it is in encrypted type