Digital watermarking for copyright protection

Samuel, S.; Penzhorn, W.T.

doi:10.1109/africon.2004.1406827

Cited by 16 publications

(7 citation statements)

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“…In robust watermarking schemes the watermark is designed such that it can stand malicious attacks like deletion, modification, and cropping. Robust watermarking is used mainly for copyright protection [ 21 , 22 ]. Fragile watermarking embeds the watermark (secret message) into the data stream in such a way that any change or tampering with the original data would corrupt the watermark.…”

Section: Literature Reviewmentioning

confidence: 99%

A Lightweight Data Integrity Scheme for Sensor Networks

Kamel

Juma

2011

Sensors

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Limited energy is the most critical constraint that limits the capabilities of wireless sensor networks (WSNs). Most sensors operate on batteries with limited power. Battery recharging or replacement may be impossible. Security mechanisms that are based on public key cryptographic algorithms such as RSA and digital signatures are prohibitively expensive in terms of energy consumption and storage requirements, and thus unsuitable for WSN applications. This paper proposes a new fragile watermarking technique to detect unauthorized alterations in WSN data streams. We propose the FWC-D scheme, which uses group delimiters to keep the sender and receivers synchronized and help them to avoid ambiguity in the event of data insertion or deletion. The watermark, which is computed using a hash function, is stored in the previous group in a linked-list fashion to ensure data freshness and mitigate replay attacks, FWC-D generates a serial number SN that is attached to each group to help the receiver determines how many group insertions or deletions occurred. Detailed security analysis that compares the proposed FWC-D scheme with SGW, one of the latest integrity schemes for WSNs, shows that FWC-D is more robust than SGW. Simulation results further show that the proposed scheme is much faster than SGW.

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Section: Literature Reviewmentioning

confidence: 99%

A Lightweight Data Integrity Scheme for Sensor Networks

Kamel

Juma

2011

Sensors

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“…A different hash algorithm (SHA-1) was used by Samuel and Penzhom [17] for copyright protection of images. In 2005 distinct attacks were launched on MD-5 and SHA-1 algorithms.…”

Section: Watermarking With Hashingmentioning

confidence: 99%

A Novel Elliptic Curve Cryptography Based Approach of Re-watermarking for Cheque Truncation System

Mehan¹,

Dhir²,

Brar³

2015

Journal of Discrete Mathematical Sciences and Cryptography

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Cheque Truncation System (CTS) is a technique of preventing tangible movement of cheque by substituting it with a digital image, with an aim for secure and faster clearance. For the first time re-watermarking is applied for authenticating transactions in CTS. Methodology for the proposed approach splits the host image (I h ) into two layers (L). In L 1 cheque details are fused with two image color channels to form a composite message (C m ). Secure hash algorithm (SHA-512) is applied to C m to generate a unique message digest (M d ). Elliptic Curve Digital Signature Algorithm (ECDSA) is applied to M d to create a digital signature. The signature is embedded by exploiting Human Visual System (HVS) color channel sensitivity in equally parted mode. In L 2 , joint secret is established to form key using Elliptic Curve Diffie Hellman Protocol (ECDHP). Advanced Encryption Standard (AES) is applied to user details intricate in the transaction. Encrypted contents are then inserted in L 2 by applying Discrete Cosine Transform (DCT). Experimental results state solution to integrity concerns by using ECDSA with SHA-512, reaction to security issues by AES and the response to key distribution problem by ECDHP. An effective semi-blind CTS is perceived with PSNR between 59-60 dB.

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“…Perceptible watermarks are especially useful for conveying an immediate claim of ownership [3]. The main advantage is that they virtually eliminate the commercial value of the document to a would-be thief without lessening the document's utility for legitimate purposes.…”

Section: Fig 1: Types Of Watermarkingmentioning

confidence: 99%

Multiple Perceptible Watermarking for Copyright Protection

Mehan¹,

Dhir²,

Brar³

2013

IJCA

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Perceptible watermarking system is an imperative copyright protection tool for digital images. Perceptible watermarks safeguard the digital images in a better vigorous manner, then imperceptible watermarks. The paper presents a multiple perceptible watermarking approach for copyright protection. Two perceptible watermarks are embedded to the color digital images. The watermarked image comprehends noticeable but un-obstructive watermark evidence. The proposed system can be castoff for advertisement and copyright uses. General TermsWatermarking

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Digital watermarking for copyright protection

Cited by 16 publications

References 0 publications

A Lightweight Data Integrity Scheme for Sensor Networks

A Lightweight Data Integrity Scheme for Sensor Networks

A Novel Elliptic Curve Cryptography Based Approach of Re-watermarking for Cheque Truncation System

Multiple Perceptible Watermarking for Copyright Protection

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