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Title: Authentication of 3D fuzzy vault using invariant facial features
Researcher: Venkata Swarajya Lakshmi, P
Guide(s): Ramesh Babu, I
Keywords: Computer Science
Upload Date: 23-Apr-2013
University: Acharya Nagarjuna University
Completed Date: 2011
Abstract: Biometrics and Cryptography play independent vital roles in the field of security. Blend of these two technologies, produce possible high level security system viz., Biometric-Crypto system in which bio templates assist encryption and decryption process. The major issues associated with current cryptographic algorithms using key which are long and highly random are: a) the randomness and uniqueness provided by current mathematical algorithms is felt inadequate to the current commercial applications; b) most of the authentication mechanisms use passwords to release the correct decrypting key, but these mechanisms are unable to provide non-repudiation; c) most of the biometric authentication systems store multiple templates per user to account for variations in biometric data. Such systems suffer from storage space and computation overheads; d) protecting the biometric template stored in a database or a smart card; e) maintenance of absolute secrecy of the key. Traditional cryptographic commitment needs exact data that is, unique decryption key, where as the biometric keys are prone to random noises. Even if the knowledge from biometric systems is exact, transmission channels may introduce noise which leads to fuzziness. Further fuzziness may come from the variable nature of biometric data. Though same biometric template is analyzed during different acquisitions; the extracted biometric data will vary and cause fuzziness. Hence cryptographic systems must be made to accept some fuzziness regarding witness that is, it must be decrypted by a key that is nearer to encryption key. A fuzzy extractor addresses both error tolerance and non uniformity. It extracts a uniformly random string from a biometric input. The slight changes in the input will be tolerated and this does not affect the extracted string. The present work is aimed at addressing the above problems, and to suggest efficient solutions. The work mainly focuses on creation of fuzzy vault using the fuzzy facial features.
Pagination: 87p.
Appears in Departments:Department of Computer Science & Engineering

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01_title.pdfAttached File17.94 kBAdobe PDFView/Open
02_declaration.pdf13.86 kBAdobe PDFView/Open
03_certificate.pdf37.4 kBAdobe PDFView/Open
04_acknowledgements.pdf12.79 kBAdobe PDFView/Open
05_dedication.pdf10.02 kBAdobe PDFView/Open
06_contents.pdf15.41 kBAdobe PDFView/Open
07_abstract.pdf14.83 kBAdobe PDFView/Open
08_list of abbreviations.pdf10.58 kBAdobe PDFView/Open
09_list of symbols.pdf62.19 kBAdobe PDFView/Open
10_list of figures.pdf39.42 kBAdobe PDFView/Open
11_list of tables.pdf39.78 kBAdobe PDFView/Open
12_chapter 1.pdf175.25 kBAdobe PDFView/Open
13_chapter 2.pdf30.64 kBAdobe PDFView/Open
14_chapter 3.pdf36.17 kBAdobe PDFView/Open
15_chapter 4.pdf177.35 kBAdobe PDFView/Open
16_chapter 5.pdf344.38 kBAdobe PDFView/Open
17_chapter 6.pdf16.54 kBAdobe PDFView/Open
18_references.pdf54.54 kBAdobe PDFView/Open
19_publications.pdf38.71 kBAdobe PDFView/Open

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