Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/177659
Title: Image Content Authentication Using Number Theoretic Approaches
Researcher: Jayashree Sivadasan Pillai
Guide(s): Padma T.
Keywords: Multimedia, Technology, Digital media
University: Mother Teresa Womens University
Completed Date: 17.02.2017
Abstract: Multimedia is anything and everything that we watch and listen in the form of text, image, audio or video. Today, it is a primary source of information and key component in communication, thanks to its huge expressive capability. Advancements in technology and the Internet has facilitated proliferation of the multimedia and along with it issues like data vulnerability and fraud. There is an inherent need for authentication mechanisms to ensure trust worthiness and integrity of digital media and ensure its security during storage and transmission. Watermarking is a common mechanism used for authentication of digital media. Improving the security aspect of an authentication system without compromise on quality and robustness of the media is a key research challenge. Security of a watermark based authentication scheme lies in the complexity and randomness involved in the watermark generation and embedding process. Any defensive scheme is incomplete without a secret key or random sequence to generate sufficient random noise to scramble or mask the watermark, sensitive information or the embedding pattern. This is to prevent unauthorized detection, reading, removal or tampering of the watermark by an adversary. Number theory based approaches have been used in literature for pseudorandom number generation but they involve the use of very large seeds with hundreds of digits and are computationally slow. They are seldom adopted due to the nature of complex computations involved. newline
Pagination: 230p.
URI: http://hdl.handle.net/10603/177659
Appears in Departments:Department of Computer Science

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01_title.pdfAttached File85.25 kBAdobe PDFView/Open
02_certificate.pdf365.45 kBAdobe PDFView/Open
03_abstract.pdf9.61 kBAdobe PDFView/Open
04_declaration.pdf333.5 kBAdobe PDFView/Open
05_acknowledgement.pdf86.34 kBAdobe PDFView/Open
06_contents.pdf42.86 kBAdobe PDFView/Open
07_list of tables.pdf202.11 kBAdobe PDFView/Open
08_list of figures.pdf241.08 kBAdobe PDFView/Open
09_abbreviations.pdf92.27 kBAdobe PDFView/Open
10_chapter 1.pdf314.37 kBAdobe PDFView/Open
11_chapter 2.pdf1.17 MBAdobe PDFView/Open
12_chapter 3.pdf115.5 kBAdobe PDFView/Open
13_chapter 4.pdf1.01 MBAdobe PDFView/Open
14_chapter 5.pdf2.49 MBAdobe PDFView/Open
15_chapter 6.pdf2.83 MBAdobe PDFView/Open
16_chapter 7.pdf378.71 kBAdobe PDFView/Open
17_conclusion.pdf90.53 kBAdobe PDFView/Open
18_summary.pdf6.17 kBAdobe PDFView/Open
19_bibliography.pdf201.64 kBAdobe PDFView/Open
20_appendix.pdf183.43 kBAdobe PDFView/Open
21_publications.pdf106.25 kBAdobe PDFView/Open


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