A System to Preserve Metadata using Steganography

Abstract

Metadata of a file is the data that provides information about other data. Metadata of a video describes the conditions under which the video was created such as date, time, camera model, resolution and geographical location. Since the metadata of a video is attached in separate files or in the header, current techniques make the metadata unsecure and easy to get lost, removed or modified. As a result, various researches have been done to address this issue in multiple mechanisms including watermarking, steganography and sensor patterns. Through this research author analyses existing mechanisms to secure metadata. As for the analysis of existing security mechanisms author justifies the need to implement a system using steganography and cryptography mechanisms on securing metadata. Steganography is used to hide information based on the fact that the existence of information is invisible to the user and cryptography is used with the purpose of enhancing security of hidden data. Then author discusses the design of the metadata preserving system and moves on to evaluating the system via comparison of parameters of original video and stego video. Through the evaluation author was able to demonstrate the performance of the system.