Title: Video steganalysis to obstruct criminal activities for digital forensics: a survey

Authors: Mukesh Dalal; Mamta Juneja

Addresses: Department of CSE, UIET, Panjab University, Chandigarh-160014, India ' Department of CSE, UIET, Panjab University, Chandigarh-160014, India

Abstract: Steganography is the method to hide information in a carrier whereas steganalysis is the procedure to discern the presence of the information hidden in a carrier. Steganography is used for secure communication however terrorists or criminals can also use steganography techniques for camouflage communications. On that account, the techniques for steganalysis are becoming more significant nowadays. The significance of steganalysis techniques that can precisely detect the existence of secret data in a video is increasing nowadays as there is evidence found that terrorist groups are using video steganography to communicate. Hence, for national security, it is required to gather adequate evidence of the existence of secret data embedded and interrupt the communication. This paper intends to present some of the evidences of the use of steganography by terrorists and criminals with a survey of existing video steganalysis techniques and also discuss some of the open challenges in this field.

Keywords: steganography; video steganalysis; spatial domain; transform domain; compression; motion vector; motion estimation; inter-frame prediction; intra-frame prediction; classifier; digital forensics.

DOI: 10.1504/IJESDF.2018.095122

International Journal of Electronic Security and Digital Forensics, 2018 Vol.10 No.4, pp.338 - 355

Received: 03 Jul 2017
Accepted: 13 Dec 2017

Published online: 01 Oct 2018 *

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