Implementation of image steganography using least significant bit insertion technique

Transferring information on internet or on any public network is very common now-a-days. However I is not a secure mean of transformation for transmitting any important information. Anyone can hack, peek or copy the information. Therefore one would not prefer to transmit important information without any protection in public network. Cryptography and steganography are two techniques to protect your message. Cryptography leads your text to be meaningless random codes. Steganography is new and exciting field; it involves embedding data into a medium in a way which is not easily detectable. This paper implements the steganography by converting the original data in to BCD code and then embedding the coded data in to digital grayscale images to get stego image. Image steganography in this paper is implemented using least significant bit insertion with BCD codes.