Naskar Ruchira (24 results)

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Hardcover. Condition: New. 1st Edition. Contents: Preface. Part I: Introduction to Digital Forensics: 1. Why Digital Forensics. 2. Most Common Forensic Problems Today. Part II: Forensic Source Camera Identification: 3. Challenges, Solutions and State-of-the-Art. 4. Features based Source Camera Identification. 5. PRNU Correlation Based Forensic Techniques for Source: Camera Identification. 6. Unknown Model Detection in Source Camera Identification. 7. Recent Development: Deep Learning Based Source-Camera Identification. Part III: Region Duplication: A Preliminary yet Precarious Threat to Multimedia Integrity. 8. Introduction to Region Duplication Attack or Copy-Move Forgery in Digital Images. 9. Region Duplication Attack and its Forensic Solutions - State-of-the-Art Research Practices. 10. Image Block Matching based Region Duplication Detection. 11. Addressing Post-Processing Attacks in Copy-Move Forgery Detection. 12. Combining Geometric and Post-Processing Attacks in Copy- Move Forgery. 13. Region Duplication Detection using Image Key-points. Part IV: Digital Forensics in Compressed Multimedia. 14. Double Compression Based Forgery Detection in Images and Videos. 15. Intra and Inter Frame Video Forgery Detection: State-of- the-Art Problems and Solutions. Part V: Counter Forensics: Major Threat to Forensic Technology : 16. Present Day Counter Forensic Challenges. 17. Deep Learning Based Counter Forensics. References. Subject Index. This book presents to the readers the basics of Digital Forensics; why this domain is gaining rapid importance in the present day. We clarify the difference of this domain of research, from traditional security measures; specifically the additional challenges that digital forensic techniques are able to overcome, as compared to the olden techniques of cryptography, watermarking and steganography. In the book, we discuss about the most important challenges faced by forensic analysts in the present day, along with the state-of-the-art solutions. We also present the recent challenges identified in this field, while paving a path for possible future researches towards solving those.

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Taschenbuch. Condition: Neu. Reversible Digital Watermarking | Theory and Practices | Ruchira Naskar (u. a.) | Taschenbuch | Synthesis Lectures on Information Security, Privacy, and Trust | xii | Englisch | 2014 | Springer | EAN 9783031012143 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.

Taschenbuch. Condition: Neu. Secret Sharing in User Hierarchy | Share Generation, Distribution and Renewal | Ruchira Naskar | Taschenbuch | 64 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783659342646 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Secret sharing in user hierarchy represents a challenging area for research. A lot of research work has already been done in this direction. This book presents a novel approach to share a secret among a hierarchy of users while overcoming the limitations of the already existing mechanisms. Traditional (k + 1; n)-threshold secret sharing, is secure as long as an adversary can compromise not more than k secret shares. But in real life it is often feasible for an adversary to obtain more than k shares over a long period of time. Here we present a way to overcome this vulnerability, while implementing our hierarchical secret sharing scheme. The use of Elliptic Curve Cryptography makes the computations easier and faster in our work. At present, a number of efficient schemes exist for sharing a secret into a group of users who are arranged into a hierarchy. Incidentally, all existing schemes have been developed considering non-overlapping hierarchies. This book presents a generalization of the existing hierarchical secret sharing schemes, which is applicable to an overlapping or tangled user hierarchy. 64 pp. Englisch.

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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Digital Watermarking is the art and science of embedding information in existing digital content for Digital Rights Management (DRM) and authentication. Reversible watermarking is a class of (fragile) digital watermarking that not only authenticates multime.

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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Naskar Ruchirareceived B.Tech and M.Tech degrees in Information Technology from West Bengal University of Technology (2008) and IIT Kharagpur (2010), respectively. Currently she is a Ph.D. scholar in the Department of Computer Scienc.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Digital Watermarking is the art and science of embedding information in existing digital content for Digital Rights Management (DRM) and authentication. Reversible watermarking is a class of (fragile) digital watermarking that not only authenticates multimedia data content, but also helps to maintain perfect integrity of the original multimedia 'cover data.' In non-reversible watermarking schemes, after embedding and extraction of the watermark, the cover data undergoes some distortions, although perceptually negligible in most cases. In contrast, in reversible watermarking, zero-distortion of the cover data is achieved, that is the cover data is guaranteed to be restored bit-by-bit. Such a feature is desirable when highly sensitive data is watermarked, e.g., in military, medical, and legal imaging applications. This work deals with development, analysis, and evaluation of state-of-the-art reversible watermarking techniques for digital images. In this work we establish the motivation for research on reversible watermarking using a couple of case studies with medical and military images. We present a detailed review of the state-of-the-art research in this field. We investigate the various subclasses of reversible watermarking algorithms, their operating principles, and computational complexities. Along with this, to give the readers an idea about the detailed working of a reversible watermarking scheme, we present a prediction-based reversible watermarking technique, recently published by us. We discuss the major issues and challenges behind implementation of reversible watermarking techniques, and recently proposed solutions for them. Finally, we provide an overview of some open problems and scope of work for future researchers in this area.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 132 pp. Englisch.

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Secret sharing in user hierarchy represents a challenging area for research. A lot of research work has already been done in this direction. This book presents a novel approach to share a secret among a hierarchy of users while overcoming the limitations of the already existing mechanisms. Traditional (k + 1; n)-threshold secret sharing, is secure as long as an adversary can compromise not more than k secret shares. But in real life it is often feasible for an adversary to obtain more than k shares over a long period of time. Here we present a way to overcome this vulnerability, while implementing our hierarchical secret sharing scheme. The use of Elliptic Curve Cryptography makes the computations easier and faster in our work. At present, a number of efficient schemes exist for sharing a secret into a group of users who are arranged into a hierarchy. Incidentally, all existing schemes have been developed considering non-overlapping hierarchies. This book presents a generalization of the existing hierarchical secret sharing schemes, which is applicable to an overlapping or tangled user hierarchy.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 64 pp. Englisch.

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Secret sharing in user hierarchy represents a challenging area for research. A lot of research work has already been done in this direction. This book presents a novel approach to share a secret among a hierarchy of users while overcoming the limitations of the already existing mechanisms. Traditional (k + 1; n)-threshold secret sharing, is secure as long as an adversary can compromise not more than k secret shares. But in real life it is often feasible for an adversary to obtain more than k shares over a long period of time. Here we present a way to overcome this vulnerability, while implementing our hierarchical secret sharing scheme. The use of Elliptic Curve Cryptography makes the computations easier and faster in our work. At present, a number of efficient schemes exist for sharing a secret into a group of users who are arranged into a hierarchy. Incidentally, all existing schemes have been developed considering non-overlapping hierarchies. This book presents a generalization of the existing hierarchical secret sharing schemes, which is applicable to an overlapping or tangled user hierarchy.

Gebunden. Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Offers a comprehensive resource encompassing the current state-of-the-art in the domain of digital forensics Clearly discusses state-of-the-art solutions for numerous digital-image forensic problems Introduces different computer-vision, i.

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