An Enhanced Steganography Technique for Hiding Text and Image Type Secret Messages

The proposed concept presents data hiding concept with the combination of cryptography and steganography technique. Proposed concepts are supporting authentication, confidentiality and partially integrity security principal. To achieve these securities principal proposed concept apply symmetric cryptography technique to support confidentiality and authentication security principal and partially integrity security principal supported through steganography technique. Proposed concept is based on security principal where encryption of the secrete information at first stage and encrypted secrete information hide in next stage so it is double security protection on single secrete information. Presented Steganography concept uses, image or text as the input data, initially it encrypted and compressed (if Image) through comparison to compact total size image after that this compressed information encrypted through symmetric cryptography technique with the help of 128 bits private key to produced encrypted information, this private key will share through private channel between sender and receiver and at last it embed encrypted information in the bit-planes of the cover image by using least significant bit (LSB) of standard steganography technique. To achieve high security proposed steganography technique used a random number generation (RAND) technique which will select random LSB from cover image. Presented results are showing the performance and effectiveness of the presented proposed work on the basis on Peek signal to noise ratio (PSNR), correlation and entropy.