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Authors: Jaroslaw Bernacki ; Marek Klonowski and Piotr Syga

Affiliation: Wroclaw University of Science and Technology, Poland

Keyword(s): Hardwaremetry, Camera Recognition, PRNU, Privacy, Histogram Analysis.

Related Ontology Subjects/Areas/Topics: Data and Application Security and Privacy ; Data Protection ; Digital Forensics ; Information and Systems Security ; Information Assurance ; Information Hiding ; Privacy

Abstract: In this paper we consider the issue of tracing digital cameras by analyzing pictures they produced. Clearly, the possibility of establishing if a picture was taken by a given camera or even if two pictures come from cameras of the same model can expose users’ privacy to a serious threat. In the paper, at first, we propose a simple and ultra-fast algorithm for identification of the brand of a digital camera and compare the results with the state-of-the-art algorithm by Lukás et al.’s. Experimental results show that at the cost of a moderate decrease of accuracy, our method is significantly faster, thus can be used for an analysis of large batches of pictures or as a preprocessing for more exact. In the second part, we propose a method for limiting the possibility of tracing digital cameras. Our method is a transformation of the picture that can be classified as a type of standardization. We prove that it prevents all methods of tracing cameras based on analysis of histograms. Moreover , in an extensive experimental evaluation we demonstrate that the transformed pictures are very similar to the original images under both visual and objective numerical measure inspection. (More)

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Paper citation in several formats:
Bernacki, J.; Klonowski, M. and Syga, P. (2017). Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure. In Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) - SECRYPT; ISBN 978-989-758-259-2; ISSN 2184-3236, SciTePress, pages 343-350. DOI: 10.5220/0006434803430350

@conference{secrypt17,
author={Jaroslaw Bernacki. and Marek Klonowski. and Piotr Syga.},
title={Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure},
booktitle={Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) - SECRYPT},
year={2017},
pages={343-350},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006434803430350},
isbn={978-989-758-259-2},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the 14th International Joint Conference on e-Business and Telecommunications (ICETE 2017) - SECRYPT
TI - Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure
SN - 978-989-758-259-2
IS - 2184-3236
AU - Bernacki, J.
AU - Klonowski, M.
AU - Syga, P.
PY - 2017
SP - 343
EP - 350
DO - 10.5220/0006434803430350
PB - SciTePress