… protection and content authentication along with security and privacy of users. Digital
watermarking deals with hiding of secret data watermark) in some digital content which can be …

… location for content authentication is affected since the fragile watermark is not included in
the characteristic regions. In order to improve the local precision, the fragile watermarks will …

… techniques for content authentication are usually designed to be fragile or semifragile
watermarks, since they should not tolerate malicious tampering that modifies the content of the …

… ; KMA denotes that the attacker not only has mastered the data involving watermarks, but
also grasped some contents of watermarks, and that the secret key can be estimated through a …

… Digital content can be embedded with fragile watermarks that get destroyed whenever
any … is made to the content. Such watermarks can be used to authenticate the content. …

… One such class of techniques is based on digital watermarks and in this paper, we … watermarks
that have been proposed for purposes of authentication, Fragile Watermarks and Content…

… multimedia content needs special hardware for copying and viewing, a digital watermark can
… algorithm, using an invisible authentication watermark to protect a visible watermark. The …

… tent authentication the goal is not to retrieve the watermark but … protection and authentication
of contents. As the challenges in … (intra-frame) such as content modification or cropping and …

… watermarks depends considerably on precisely … that of content protection for which digital
watermarks are also very … consider threats to the digital watermarks or the mechanisms used …

… Content verification system based on private watermarking and public accessibility to
authentication servers. DCh, QCh, and VCh denote the distribution, verification request, and reply …