Securing Data in Fiber Optics

Fiber optic has previously displayed unbeaten advantages, and was the most secure communication medium, but now it is very easy to tap fiber optic networks. There are a number of known methods of extracting or injecting information into a fiber, while avoiding its detection. Therefore it has become necessary to secure data in optical fiber.

This paper provides securing data flowing in optical fiber through steganography. Steganography is a process that involves hiding a message in a carrier, then the carrier is sent to receiver without anyone else knowing that it contains a hidden message. The original files can be referred to as cover text, cover image, or cover audio. After inserting the secret message it is referred to as stego-medium. Then at the receiver original data is extracted from received data. This paper provides an overview of steganography and steganographic technique to secure data i.e. both image and text.