A Cryptographic based Approach for Data Hiding in Advanced Video Sequences

Vinay D R, Dr Anand Babu J

doi:10.17762/turcomat.v12i6.4808

Abstract

Data hiding in video streams became more popular in the present world, since there is a high frequency of data communication over the internet. Hiding the data in video streams provides more security as well as increases embedding capacity than hiding inside the images. The quantity of information to be embedded into the video increases, it can badly influence the video excellence make it inappropriate for certain appliances. The main concerns in data hiding in videos are its high visual excellence, increased hiding capacity, video stream size etc. In this paper, a new data hiding technique is proposed in compressed H.264 Video Streams. At first, the information to be embedded is encrypted using Cryptography approach. The Cryptographic approach helps to encrypt the plain information based on the elliptic points produced by choosing the large prime number. The encrypted data is embedded into the transformed DCT coefficients of I, B and P video frames. The experiment is conducted for different set of video sequences. The results shows that the proposed method yields better performance in terms of Peak signal to noise ratio (PSNR), Structural similarity index (SSIM) and Video quality measure (VQM) when compare to existing methods.

Highlights

The world exchanges information over communication channels during transmission
Bit stream to be decoded and to embed new data re encoding is preferred. Though it leads to degraded video quality because of lesser Peak signal to noise ratio (PSNR) value is achieved during data hiding process
While comparing with the other data hiding methods, these outcomes of this proposed methodology shows that it yields better performance in terms of PSNR, Structural similarity index (SSIM) and Video quality measure (VQM)

Summary

Introduction

The world exchanges information over communication channels during transmission. The correct data is delivered to destination matters during transmission. Secure data transmission needs to be implemented in all parts of communication network. The method of embedding data into content is well known in data hiding technique without affecting its quality or features. This must lead to minimal degradation whenever tried to embed external data into all formats such as video, image, audio, text. Bit stream to be decoded and to embed new data re encoding is preferred. Though it leads to degraded video quality because of lesser PSNR value is achieved during data hiding process. Apart from it, marked video cannot be get back using re encoding and decoding during real time

Methods

Discussion

Conclusion