Optical stegnography to enhance speed of analog transmission with security enhancement through image encryption

Data transmission is the way through which data is sent from source to destination over a physical medium. In networking we use coaxial cable, twisted pair wires for transfer of data from source to destination. These medium of data transfer are slower in nature and data which is transferred may leak or lost during transmission and also there no security of data. To overcome these problems during transmission we use fibre optics. In fibre optics the data is transferred in the form of light beams so there it is less prone to leakage of data. It also uses some security mechanisms for secure transmission of data. The data which are transferred firstly encrypt and after that transferred to the destination in the form of light beams. In our proposed system we introduced encryption in fibre optics using image. Also various encryption algorithms have been proposed to make optical medium data secure, vulnerable and give concern to the security issues, challenges and also comparisons have been made between AES, DES and RSA algorithms to find the best one security algorithm, which has to be used in Optical medium for making Optical medium data secure and not to be hacked by attackers.