Title :

Effect of JPEG Quality on Steganographic Security

Author(s) :

Butora, Jan [Auteur]
Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
Fridrich, Jessica [Auteur]
Binghamton University [SUNY]

Scientific editor(s) :

Rémi Cogranne
Luisa Verdoliva
Siwei Lyu
J uan Pastoriza
Xinpeng Zhang

Conference title :

IH&MMSec '19: ACM Information Hiding and Multimedia Security Workshop

City :

Paris

Country :

France

Start date of the conference :

2019-07-03

Book title :

IH&MMSec'19: Proceedings of the ACM Workshop on Information Hiding and Multimedia Security

Publisher :

ACM

Publication date :

2019-07-02

English keyword(s) :

Steganography
Steganalysis
JPEG
quality factor
generalized Gaussian

HAL domain(s) :

Informatique [cs]/Cryptographie et sécurité [cs.CR]
Informatique [cs]/Traitement des images [eess.IV]

English abstract : [en]

This work investigates both theoretically and experimentally the security of JPEG steganography as a function of the quality factor. For a fixed relative payload, modern embedding schemes, such as J-UNIWARD and UED-JC, ...
Show more >This work investigates both theoretically and experimentally the security of JPEG steganography as a function of the quality factor. For a fixed relative payload, modern embedding schemes, such as J-UNIWARD and UED-JC, exhibit surprising non-monotone trends due to rounding and clipping of quantization steps. Their security generally increases with increasing quality factor but starts decreasing for qualities above 95. In contrast, old-fashion steganography, such as Jsteg, OutGuess, and model-based steganography, exhibit complementary trends. The results of empirical detectors closely match the trends exhibited by the KL divergence computed between models of cover and stego DCT modes. In particular, our analysis shows that the main reason for the complementary trends is the way modern schemes attenuate embedding change rates with increasing spatial frequency. Our model also provides guidance on how to adjust the embedding algorithm J-UNIWARD to improve its security for JPEG quality factor 100.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL

Submission date :

2024-02-13T03:09:37Z