14 December 2016 Steganographic embedding of a secret message in a video flow
Author Affiliations +
Proceedings Volume 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII; 100103B (2016) https://doi.org/10.1117/12.2246036
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2016, 2016, Constanta, Romania
Abstract
The paper presents a steganographic method which hides a secret message in a video flow. The secret message represents the result of a chaos-based encryption scheme. One of the flaws which make the algorithm unpractical for real-time applications is that, while the elements of the plain-message are represented using 8 bits (ASCII characters) the corresponding encrypted values need to be represented using 16 bits. Since the pixels of a typical image are represented using 24 bits (8 bits for each color component), each encrypted character fits in only one pixel. Moreover, since the resolution of today’s video materials is very large, the pixel previously established to carry in its evolution the hidden content will not be obvious to unaware spectators, but only to the one which knows its coordinates. In addition to the steganographic procedure, the work presents preliminary results on the degree of pseudo-randomness of video flows. The study is based upon the idea behind Lyapunov exponents. The evolution of two pixels which initially differ only by the minimum possible value (the color representation’s resolution) is followed for a large number of video frames. The distance between such points, for pseudo-random behavior, is known to evolve over time in a Gaussian manner. A Kolmogorov-Smirnov statistic is computed and illustrated in order to conclude over the provenience of the data series representing the evolution of the distance between the two initially neighboring pixels from a standard normal law.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Octaviana Datcu, Octaviana Datcu, Robert A. Dobre, Robert A. Dobre, Mihai Stanciu, Mihai Stanciu, } "Steganographic embedding of a secret message in a video flow", Proc. SPIE 10010, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VIII, 100103B (14 December 2016); doi: 10.1117/12.2246036; https://doi.org/10.1117/12.2246036
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT

A new paradigm for steganalysis via clustering
Proceedings of SPIE (February 10 2011)
Knowledge-based approach to JPEG acceleration
Proceedings of SPIE (April 16 1995)
Consumer acceptance of MPEG2 video at 3.0 to 8.3 Mb...
Proceedings of SPIE (November 03 1996)
Defining security in steganographic systems
Proceedings of SPIE (April 28 2002)
Comparison of motion vector coding techniques
Proceedings of SPIE (September 15 1994)

Back to Top