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Some Problems in Symmetric and

In: Computers and Technology

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Some Problems in Symmetric and
Asymmetric Cryptography
A thesis submitted for the partial fulfillment of the degree of
Doctor of Philosophy in Mathematics
By
SANTOSH KUMAR YADAV
Under the supervision of
Prof. Sunder Lal and Prof. S. C. Arora
DEPARTMENT OF MATHEMATICS
DR. B. R. AMBEDKAR UNIVERSITY, AGRA
(FORMERLY AGRA UNIVERSITY)
2010
*Sanskrit verse dating back to the pre-Christian era
Dedicated to my
Teachers, Friends, Students and Family Members
DECLARATION
I do hereby declare that the present research work has been carried out by me under the supervision of Prof. Sunder Lal and Prof. S. C. Arora. This work has not been submitted elsewhere for any other degree, diploma, fellowship or any other similar title.
Santosh Kumar Yadav
Research Scholar
CERTIFICATE
This is to certify that the thesis entitled “Some Problems in Symmetric and Asymmetric Cryptography” submitted to Dr. B.R.Ambedkar University,
Agra for the degree of Doctor of Philosophy by Mr. Santosh Kumar Yadav, is a bonafide record of research work done by him under our supervision. To the best of our knowledge, this thesis has not previously formed the basis for the award to any candidate of any degree, diploma, fellowship or any other similar title and the work has not been submitted to any university or institution, for the award of any other degree.
S. C. ARORA SUNDER LAL
(Co-supervisor) (Supervisor)
Professor Professor of Mathematics, and
Department of Mathematics Pro-Vice Chancellor
University of Delhi Dr. B.R. Ambedkar University
Delhi-110007 Agra-282002
ACKNOWLEDGEMENTS
I am grateful to my supervisors Prof. Sunder Lal, Professor and Pro-
Vice Chancellor of Dr. B.R. Ambedkar University, Agra and Prof. S.C.Arora,
Professor, Department of Mathematics, University of Delhi, Delhi who spared their valuable time in guiding me for my research work. They encouraged...

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