A Hybrid Watermarking Scheme for Relational Databases Copyright Protection and Tamper Proofing

Author(s):  
Ali Hamadou ◽  
Xingming Sun ◽  
Saeed Arif Shah ◽  
Lingyun Gao
2015 ◽  
Vol 126 (4) ◽  
pp. 13-26 ◽  
Author(s):  
M.A. Mohamed ◽  
H.M. Abdel-Atty ◽  
M.G. Abdel-Fattah ◽  
A.S. Samrah

2019 ◽  
Vol 8 (3) ◽  
pp. 4040-4046

Internet based digitization has been of rapid increase in the usage of database applications at an enormous rate in recent times. It is very difficult to secure the ownership of digital assets because all the data on the internet are available everywhere almost free of cost and anybody can access such data and claim their ownership. In current digital scenario not only images, videos, and audio are in digital form. Databases are also digitized in different models and used as a service in database applications, including areas such as finance, multimedia, personnel, etc. A huge amount of confidential and sensitive data which are available publically facing a variety of threats like illegal copying, illegal redistribution, tampering, forgery and authentication. Authenticity, integrity, confidentiality and copyright protection are most important security issues to be addressed with most importance. Copyright management is a serious issue in database applications because it is much easier for others to download and manipulate copyrighted databases from the Internet and later re-use without any control. In this paper we proposed a robust watermarking scheme for copyright protection for relational databases, which protects the copy right information of the database even if the attacker tampers the data by changing the attribute values or reordering the tuples of the database. The proposed watermarking technique is robust since the watermark will not be lost even though the attacker tampers the data. The experiments show that the new method is efficient as well as effective for maintaining copy right information there by ensuring right protection to relational databases


2021 ◽  
Vol 2070 (1) ◽  
pp. 012111
Author(s):  
Kodathala Sai Varun ◽  
Ajay Kumar Mandava ◽  
Rakesh Chowdary

Abstract Copyright protection for digital multimedia has become a research hotspot in recent years. As an efficient solution, the digital watermarking scheme has emerged at the right moment. In this article, a highly robust and hybrid watermarking method is proposed. The discrete wavelet transform (DWT) and the singular value decomposition (SVD) as well as iterative blending are adopted in this method to insert and recover the watermark. To enhance the watermark imperceptibility, the second low-level (LL2) coefficients after SVD are modified by using the watermark. Compared with the conventional DWT-SVD-based watermarking method and other watermarking techniques, the watermarked images obtained by the proposed method have higher image quality. In addition, the proposed method achieves high robustness in resisting various image processing attacks.


2021 ◽  
Vol 1131 (1) ◽  
pp. 012020
Author(s):  
Neha Janu ◽  
Ankit Kumar ◽  
Pankaj Dadheech ◽  
Gajanand Sharma ◽  
Ashutosh Kumar ◽  
...  

2007 ◽  
Vol 26 (4) ◽  
pp. 319-330 ◽  
Author(s):  
Ming-Chiang Hu ◽  
Der-Chyuan Lou ◽  
Ming-Chang Chang

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