WORLDCOMP'12 Tutorial: Dr. Asoke Nath and Ms. Joyshree Nath

The main objective of the tutorial is to discuss and show various implementations of basic cryptography methods. We will discuss some very elementary methods of cryptography such as (i) Caeser Cipher method, (ii) Modified Caeser Cipher Method, (iii) Hill Cipher Method, (iv) Diffie hellman key exchange method, (v) Playfair method, (vi) Data Encryption Standard (DES) method, (vii) Advanced Encryption Standard (AES) method, (viii) Meheboob, Saima and Asoke (MSA) algorithm,(ix) DJSA method, (x) NJJSAA method, (xi) TTJSA method, (xii) DJSSA method, (xiii) DJMNA method, and (xiv) UES method. In addition, some public key algorithms will be covered, including: (i) Rivest Shamir and Adleman (RSA) method, (ii) Elliptic curve algorithm; and others (time permitting). We will also show some live demonstrations of recent cryptographic methods. The present tutorial will not only help the beginners but also can potentially help the experts in this field.

The present Tutorial would benefit the following types of users:

• Computer scientists and practitioners whose expertise include one or more fields of computer science but who are not familiar with encryption algorithms. This tutorial is mainly designed to benefit this group.
• Experts in coding theory and cryptology will also benefit from this tutorial (because there will be some new / novel materials covered).
• Computer users, operators, and technicians whose background does not include theoretical knowledge of computation. They will learn how to apply the methods that will be discussed in this tutorial.

Dr. Asoke Nath is Assistant Professor in Computer Science in St. Xavier’s College (Autonomous), Kolkata,India. Dr. Nath is presently working in the field of Cryptography, Steganography and Image processing. Recently Dr. Nath and his research group developed a set of new symmetric key algorithms called MSA, DJSA, DJSSA, NJJSAA,TTJSA, DJMNA, UES, and others. The research group has also developed various methods (they are unique) to hide any encrypted messages inside any kind of host file such as .EXE, .DOC, .PDF. Currently, the group is engaged in developing various encryption methods with potential to be the amalgamation of symmetric key and asymmetric key algorithms resulting in a more enhanced security. Dr. Nath has delivered presentations and tutorials at a number of national and international meetings and conferences, including: Woldcomp 2010 and 2011 at Las Vegas(USA).

Ms. Joyshree Nath persuing M.Tech(IT) in C.U. She is doing research in the areas of security, in particular, in Steganography and Cryptography. She has developed a new cryptography algorithm called DJSA which is the modified version of MSA. She has also designed and developed a new set of methods for embedding encrypted secret messages inside any host file such as .DOC, .EXE, .PDF, and others. In the recent past, she has participated and delivered papers and tutorials at WORLDCOMP 2011 (Las Vegas, USA).