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Reversible semi-fragile watermarking Technique for Integrity Control of Relational Database

Engineering（科研） 2024年第9期16卷 309-323页

作者： Ali Hamadou Abdoul Aziz Issaka Hassane Lanciné Camara Harouna Naroua Department of Mathematics Dan Dicko Dankoulodo University of Maradi Maradi Niger Social Science and Management University of Bamako Bamako Mali Department of Mathematics and Computer Science Abdou Moumouni University Niamey Niger

Reversible watermarking schemes for relational database are usually classified into two groups: robust schemes and fragile schemes. The main limitation of existing reversible fragile methods is that they cannot differentiate between legal and malicious modifications. In this paper, we introduce a novel lossless semi-fragile scheme based on prediction-error expansion for content protection of relational database. In the proposed method, all attributes in a database relation are first classified according to their sensitivity to legitimate updates. Then, the watermark is embedded by expanding the prediction error of the two least significant digits of securely selected attributes. At watermark extraction, the proposed method has the ability to fully restore the original data while detecting and localizing tampering. The applicability of our method is demonstrated theoretically and experimentally.

关键词： semi-fragile watermarking Integrity Control Reversibility Prediction-Error Expansion

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Image Authentication Based on Digital Signatureand semi-fragile watermarking

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Journal of Computer Science & Technology 2004年第6期19卷 752-759页

作者： Hong-BinZhang ChengYang Xiao-MeiQuan CollegeofComputerScience BeijingUniversityofTechnologyBeijing100022P.R.China

This paper proposes an authentication scheme for JPEG images based on digital signature and semi-fragile watermarking. It can detect and locate malicious manipulations made to the image, and verify the ownership of the image at the same time. The algorithm uses the invariance of the order relationship between two DCT coefficients before and after JPEG compression to embed image content dependent watermark, therefore the watermark can survive the JPEG lossy compression. Since the scheme is based on the security of the cryptographic hash function and public key algorithm, it is believed to be secure to the extent that cryptography is believed to be. Theoretical analysis and experimental results show that the proposed scheme has the desired property and good performance for image authentication.

关键词： image authentication semi-fragile watermarking JPEG digital signature

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A new semi-fragile watermarking algorithm for image authentication

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Journal of Chongqing University 2005年第1期4卷 41-46页

作者：韩德志 Department of Computer Science Jinan University Guangzhou 510632 P.R.China College of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 P.R. China

This paper presents a new semi-fragile watermarking algorithm for image authentication which extracts image features from the low frequency domain to generate two watermarks: one for classifying of the intentional content modification and the other for indicating the modified location. The algorithm provides an effective mechanism for image authentication. The watermark generation and watermark embedment are disposed in the image itself, and the received image authentication needs no information about the original image or watermark. The algorithm increases watermark security and prevents forged watermark. Experimental results show that the algorithm can identify intentional content modification and incidental tampering, and also indicate the location where a modification takes place.

关键词： authentication semi-fragile watermarking fragility wavelet transform

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semi-fragile Audio watermarking Algorithm in DWT Domain

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China Communications 2010年第4期7卷 71-75页

作者： LEI Min YANG Yu LUO Shoushan NIU Xinxin Key Laboratory of Network and Information Attack ＆ Defence Technology of MOE B eijing University of Posts and Telecommunications Beijing 100876 China School of Software Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

A novel semi-fragile audio watermarking algorithm in DWT domain is proposed in this *** method transforms the original audio into 3-layer wavelet domain and divides approximation wavelet coefficients into many *** computing mean quantization of per group,this algorithm embeds the watermark signal into the average value of the wavelet *** results show that our semi-fragile audio watermarking algorithm is not only inaudible and robust against various common images processing,but also fragile to malicious ***,it can detect the tampered regions effectively.

关键词： semi-fragile watermarking Wavelet Transform Mean Quantization Tamper Detection

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An H.264/AVC Video watermarking Scheme in VLC Domain for Content Authentication

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China Communications 2010年第6期7卷 30-36页

作者： Sun Tanfeng Jiang Xinghao Lin Zhigao Zhou Yue Lu Huan Wang Shilin School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 P. R. China Shanghai Information Security Management and Technology Research Key Lab Shanghai P. R. China

A semi-fragile content authentication algorithm is proposed for low bit-rate H.264/AVC video in VLC domain. Utilizing the intra prediction mode and coded block pattern in VLC domain, the proposed algorithm chooses those macro-blocks from which the signature is extracted and constructs content signature at macro-block level according to the relationship among the energies of quantized low-frequency coefficients of sub-macroblocks. The signature is embedded by modifying the trailing coefficients. The experimental results show that the proposed algorithm performs well in visual quality impact and keep the bit-rate basically unchanged. In addition, the algorithm can embed signatures into I, P, B slices simultaneously and remarkably enhances the watermark capacity. By verifying the extracted signature, the algorithm can detect and locate video tampering efficiently.

关键词： H.264/AVC video watermarking content authentication VLC domain semi-fragile watermarking

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